ModelMultipleChoiceField and plus sign

[Asim Yuksel]

I have a field called peopleid. The default admin page displays this
as a dropdown list and shows a green plus sign near it. Instead of
dropdown, I want to use MultipleChoiceField. But if I define this
field. I dont see the plus sign? How can I make it appear near the
ModelMultipleChoiceField?

Here is the form field I am using

peopleid =
forms.ModelMultipleChoiceField(label='Authors',queryset=Tblpeople.objects.all())


-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

url pattern needed

[ydjango]

I have an ajax request coming in like this
http://localhost:8000/board/getnames?age=31=1

I cannot change it to http://localhost:8000/board/getnames/31/1


1) what would be the url pattern to use in urls.py?


2) what would be view method - def getname(request, age = None, sex =
None):

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: set up database engine

[yangyang]

I mean the tutorial only tells you "edit settings" but doesn't tell
you how. Excuse me if this is obvious to most of people.

On Apr 7, 11:17 pm, yangyang  wrote:
> how exactly set up the database engine as SQLight? The tutorial
> doesn't seem to tell us...
>
> Thanks!

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

set up database engine

[yangyang]

how exactly set up the database engine as SQLight? The tutorial
doesn't seem to tell us...

Thanks!

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: URL Patterns for Nested Catagories.

[Streamweaver]

Thanks again.  Just following up with my model to show how I'm
implementing based on the advice above.

Note I call my categories model Topics instead but you get the
picture.

class Topic(models.Model):
'''
Topics form sections and categories of posts to enable topical
based
conversations.

'''
text = models.CharField(max_length=75)
parent = models.ForeignKey('self', null=True, blank=True) # Enable
topic structures.
description = models.TextField(null=True, blank=True)
slug = models.CharField(max_length=75)
path = models.CharField(max_length=255)

# Custom manager for returning published posts.
objects = TopicManager()

def get_path(self):
'''
Constructs the path value for this topic based on hierarchy.

'''
ontology = []
target = self.parent
while(target is not None):
   ontology.append(target.slug)
   target = target.parent
ontology.append(self.slug)
return '/'.join(ontology)


def save(self, force_insert=False, force_update=False):
'''
Custom save method to handle slugs and such.
'''
# Set pub_date if none exist and publish is true.
if not self.slug:
qs = Topic.objects.filter(parent=self.parent)
unique_slugify(self, self.text, queryset=qs) # Unique for
each parent.

# Raise validation error if trying to create slug duplicate
under parent.
if
Topic.objects.exclude(pk=self.pk).filter(parent=self.parent,
slug=self.slug):
raise ValidationError("Slugs cannot be duplicated under
the same parent topic.")

self.path = self.get_path() # Rebuild the path attribute
whenever saved.

super(Topic, self).save(force_insert, force_update) # Actual
Save method.

def __unicode__(self):
'''Returns the name of the Topic as a it's chained
relationship.'''
ontology = []
target = self.parent
while(target is not None):
   ontology.append(target.text)
   target = target.parent
ontology.append(self.text)
return ' - '.join(ontology)

class Meta:
ordering = ['path']
unique_together = (('slug', 'parent'))


On Apr 7, 8:34 pm, Tim Shaffer  wrote:
> Oh, check out the Category class from django-simplecms. It implements
> the first method.
>
> Specifically, check out the save() method that builds the path based
> on all the parent categories if it doesn't exist.
>
> http://code.google.com/p/django-simplecms/source/browse/trunk/simplec...

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: URL Patterns for Nested Catagories.

[Streamweaver]

Big thanks for the reply.

I already have a custom save method on the Catagory for slugs so it'll
be easy enough to create a path.

I may not understand the suggested implementation very well but it
sounds like I may not have to do a split at all if I store the
sluggified path then I think all I should have to do is query on that?

I'll give it a try and try to post what I've come up with back here so
others can reference it.  Thanks again.

On Apr 7, 8:34 pm, Tim Shaffer  wrote:
> Oh, check out the Category class from django-simplecms. It implements
> the first method.
>
> Specifically, check out the save() method that builds the path based
> on all the parent categories if it doesn't exist.
>
> http://code.google.com/p/django-simplecms/source/browse/trunk/simplec...

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: URL Patterns for Nested Catagories.

[Tim Shaffer]

Oh, check out the Category class from django-simplecms. It implements
the first method.

Specifically, check out the save() method that builds the path based
on all the parent categories if it doesn't exist.

http://code.google.com/p/django-simplecms/source/browse/trunk/simplecms/cms/models.py#47

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: URL Patterns for Nested Catagories.

[Tim Shaffer]

> I suppose I could do something like r'^(?P.*)$' and then parse path in 
> the view but this could wreak havoc with other URLs.

Yes, that's the way to do it. You can prevent it from clashing with
other URLs by prefixing it with something like categories/ so the URL
would be:

www.example.com/categories/category-1/category-2/

That being said, it's not entirely trivial to retrieve the nested
categories. I can think of 2 basic strategies:

1. Create a "path" field on the Category model that stores the full
path (category-1/category-2). This makes it very easy to find the
category:

Category.objects.get(path=path)

But this also means you have to build the path and store it every time
a category is saved, or one of its parent categories is saved.

2. Split apart the path (path.split("/")) then loop through each part,
and see if the category exists. In pseudocode, might look like this:

for part in path.split("/"):
  find category by part=part, parent=previous_part
  if not found, raise 404
  previous_part = part

This doesn't require any special code when saving a category, but
makes it a heck of a lot more difficult to retrieve a category.

Personally I'd go with the first option.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

URL Patterns for Nested Catagories.

[Streamweaver]

I'm trying to setup a Django based blog for myself and I'd like to do
wordpress like nested catagories.

The model itself is fine and there are some good posts about how to do
such things around (i.e. 
http://swixel.net/2009/01/01/django-nested-categories-blogging-like-wordpress-again/)

The thing I'm having trouble wrapping my head around is how would I
setup URL Patterns for nested catagories when it may have any number
of extra layers?

Say I had a set of nested catagories like

Parent
  - Child Level 1
  - Child Level 2

which I would expect to have a url like:

/parent/child-level-1/child-level-2/

Is it possible to even pick up a variable number of URL attributes
like that?

I suppose I could do something like r'^(?P.*)$' and then parse
path in the view but this could wreak havoc with other URLs.

Anyone have any ideas?

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: url template tag taking a long time

[Brian Neal]

On Apr 6, 11:53 pm, Russell Keith-Magee 
wrote:
> On Wed, Apr 7, 2010 at 12:08 PM, Brian Neal  wrote:
> > I am on trunk, somewhere around revision 127xx and just updated to
> > 12936. A couple of my views render this one particular template, which
> > used to take less than a second to see a response. Now it is taking
> > almost a minute. [...]
>
> > I started removing junk from my template until it started responding
> > normally, and I isolated it down to a {% url %} tag. Well, I don't
> > think it was just one, maybe a few of them combined was adding up to a
> > minute.
>
> > 
>
> > Anyone else seeing this? Thoughts?
>
> Are you running on SVN trunk? If so, it's possible that you're seeing
> the effects of #13275 [1].

Yes, I'm on SVN trunk.
>
> This is a major regression that was introduced recently to solve a
> different problem (#12945, which was in turn a fix for #12072). This
> problem is on the 1.2 critical list, so it needs to be fixed before
> 1.2 is released.
>
> [1]http://code.djangoproject.com/ticket/13275

Thanks for the confirmation. If there is anything I can help with let
me know. My laptop's CPU fan really kicks on when I hit that code. =:-
O

>
> > Maybe unrelated, but I also noticed that after I updated, I had to
> > change this:
>
> > {% url bio-members_full type="user",page="1" %}
>
> > to this:
>
> > {% url bio-members_full type='user',page=1 %}"
>
> > (switch to single quotes in the kwargs to pass a string literal) or I
> > got a template syntax error.
>
> This sounds like you may have found an additional regression case
> caused by the same chain of tickets.
>
> Yours,
> Russ Magee %-)

Regards,
BN

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Error when following the tutorial

[Shawn Milochik]

Try to do ./manage.py shell and import your poll model.

Once you can do that, you will have figured out the solution to this problem as 
a by-product.
I don't expect it to work first try, but it should get you moving in the right 
direction.

Shawn


On Apr 7, 2010, at 5:21 PM, TheNational22 wrote:

> sorry, that should've read home/kevin/crossen
> 
> 
> On Apr 7, 4:57 pm, TheNational22  wrote:
>> Yes /home/crossen/crossen has the init and so does polls
>> 
>> On Apr 7, 4:55 pm, Shawn Milochik  wrote:
>> 
>> 
>> 
>>> On Apr 7, 2010, at 4:53 PM, TheNational22 wrote:
>> 
 I have added /home/crossen/crossen to the python path, and I am still
 getting the errors
>> 
>>> Okay, but do the directories you've added to the path contain __init__.py 
>>> files? (zero-byte is fine, they just have to be there)
> 
> -- 
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to 
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/django-users?hl=en.
> 

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Error when following the tutorial

[TheNational22]

sorry, that should've read home/kevin/crossen


On Apr 7, 4:57 pm, TheNational22  wrote:
> Yes /home/crossen/crossen has the init and so does polls
>
> On Apr 7, 4:55 pm, Shawn Milochik  wrote:
>
>
>
> > On Apr 7, 2010, at 4:53 PM, TheNational22 wrote:
>
> > > I have added /home/crossen/crossen to the python path, and I am still
> > > getting the errors
>
> > Okay, but do the directories you've added to the path contain __init__.py 
> > files? (zero-byte is fine, they just have to be there)

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Error when following the tutorial

[TheNational22]

Yes /home/crossen/crossen has the init and so does polls

On Apr 7, 4:55 pm, Shawn Milochik  wrote:
> On Apr 7, 2010, at 4:53 PM, TheNational22 wrote:
>
> > I have added /home/crossen/crossen to the python path, and I am still
> > getting the errors
>
> Okay, but do the directories you've added to the path contain __init__.py 
> files? (zero-byte is fine, they just have to be there)

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Error when following the tutorial

[Shawn Milochik]

On Apr 7, 2010, at 4:53 PM, TheNational22 wrote:

> I have added /home/crossen/crossen to the python path, and I am still
> getting the errors

Okay, but do the directories you've added to the path contain __init__.py 
files? (zero-byte is fine, they just have to be there)

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Error when following the tutorial

[TheNational22]

I have added /home/crossen/crossen to the python path, and I am still
getting the errors

On Apr 7, 4:26 pm, Shawn Milochik  wrote:
> Off of the top of my head that looks correct. Perhaps there's a problem with 
> your PYTHONPATH.
>
> Try to echo $PYTHONPATH and see what you get. See if anything in your home 
> directory is in there,
> and whether the fact that you have a subdirectory with a name identical to 
> it's parent directory could be part of the problem.
>
> I'm assuming you're on Linux based on the path you specified.
>
> Is there an __init__.py in your polls directory?
>
> Also, as for the IRC chat, it's on freenode.net, so I recommend heading over 
> there and registering your nickname.
>
> Shawn

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

another many-to-many filtering question

[Jim N]

Hi All,

I have a many-to-many relationship of User to Question through Asking.

I want to get Questions that a given User has not asked yet.  That
is,  Questions where there is no Asking record for a given User.  I
have the User's id.

Models look like:

class Question(models.Model):
 text = models.TextField()
 question_type = models.ForeignKey('QuestionType')
 user = models.ManyToManyField(User, through='Asking', null=True)

class Asking(models.Model):
 user = models.ForeignKey(User)
 question = models.ForeignKey(Question)
 is_primary_asker = models.BooleanField()

User is the built-in django.contrib.auth.models User.

Thanks!  Maybe this is simple and I just am not seeing it.

-Jim

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Double arrays in models django

[Bill Freeman]

You need one matrix table, having a row for each matrix.

You need one matrix_row table, having a row for each row of any matrix, mostly
containing a foreign key on the matrix table, showing of which matrix the row is
part, plus it's row number in that table.

And you need one matrix_row_values table, having a foreign key on the
matrix_row,
indicating of which row it is a part, plus it's column number, and the value.

There is no run time table creation involved, and this can all be done
with direct
django models, and on any database the ORM supports (maybe not NoSQL
databases, I'll have to think about that).  The access syntax wouldn't look like
2D array access, but you could fix that with a wrapper.

On Wed, Apr 7, 2010 at 4:20 PM, zimberlman  wrote:
> No, no.
> I need to store the matrix and dual array is ideal for this would come
> up.
> The problem is that the matrix will grow in size, thousands of entries
> only on i, and where that same number of j.
> create table is not an option.
>
> only if the matrix transform and drive the table. and my question is,
> if you can not define arrays in the model, how can I convert a
> matrix.
> example is the matrix
> a   b   c   d  e
> 1   2   3   4  5
> 11 22 33 44 55
> converted into
> a 1
> a 11
> b 2
> b 22
> c 3
> c 33
> d 4
> d 44
> e 5
> e 55
>
> this is for example, how do I implement this in the model? course in
> the class will have to use functions, but is it possible?
>
> On 8 апр, 01:28, pmains  wrote:
>> If there is no Django model field for this, then one option would be
>> to create your own model field (http://docs.djangoproject.com/en/dev/
>> howto/custom-model-fields/). Of course, it would not be compatible
>> with most SQL Database types.
>>
>> Of course, it may be easier to just rethink your data model. Would it
>> be possible to create one or more additional tables to avoid using an
>> unusual DB construct like a 2D array?
>>
>> Could you explain the problem in a little more detail? Saying that you
>> want a 2-dimensional array is very abstract, but if we understand what
>> problem you are trying to solve, what data you are attempting to
>> model, it will be easier to give you useful suggestions.
>
>
> double array that I want to keep count, it is ideally suited for the
> incidence matrix of the graph.
> required to store the connection to the knowledge base of question-
> answering system.
> which will lie on j IDs leading questions, and i will lie on
> identifiers answers emerging from a set of leading questions.
> and a double array is an ideal way to store data.
> but I probably need to write your own model of the array for django in
> this case, it is the only big problem at this time.
>
> --
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to 
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Error when following the tutorial

[Shawn Milochik]

Off of the top of my head that looks correct. Perhaps there's a problem with 
your PYTHONPATH. 

Try to echo $PYTHONPATH and see what you get. See if anything in your home 
directory is in there,
and whether the fact that you have a subdirectory with a name identical to it's 
parent directory could be part of the problem.

I'm assuming you're on Linux based on the path you specified.

Is there an __init__.py in your polls directory?

Also, as for the IRC chat, it's on freenode.net, so I recommend heading over 
there and registering your nickname.

Shawn


-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Double arrays in models django

[zimberlman]

I have now 2.21 at night, I live in Siberia.
city of Tyumen. so I will read the answers in 6 hours 8 only in the
morning when I wake up.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Double arrays in models django

[zimberlman]

No, no.
I need to store the matrix and dual array is ideal for this would come
up.
The problem is that the matrix will grow in size, thousands of entries
only on i, and where that same number of j.
create table is not an option.

only if the matrix transform and drive the table. and my question is,
if you can not define arrays in the model, how can I convert a
matrix.
example is the matrix
a   b   c   d  e
1   2   3   4  5
11 22 33 44 55
converted into
a 1
a 11
b 2
b 22
c 3
c 33
d 4
d 44
e 5
e 55

this is for example, how do I implement this in the model? course in
the class will have to use functions, but is it possible?

On 8 апр, 01:28, pmains  wrote:
> If there is no Django model field for this, then one option would be
> to create your own model field (http://docs.djangoproject.com/en/dev/
> howto/custom-model-fields/). Of course, it would not be compatible
> with most SQL Database types.
>
> Of course, it may be easier to just rethink your data model. Would it
> be possible to create one or more additional tables to avoid using an
> unusual DB construct like a 2D array?
>
> Could you explain the problem in a little more detail? Saying that you
> want a 2-dimensional array is very abstract, but if we understand what
> problem you are trying to solve, what data you are attempting to
> model, it will be easier to give you useful suggestions.


double array that I want to keep count, it is ideally suited for the
incidence matrix of the graph.
required to store the connection to the knowledge base of question-
answering system.
which will lie on j IDs leading questions, and i will lie on
identifiers answers emerging from a set of leading questions.
and a double array is an ideal way to store data.
but I probably need to write your own model of the array for django in
this case, it is the only big problem at this time.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Error when following the tutorial

[TheNational22]

On Apr 7, 4:09 pm, Shawn Milochik  wrote:
> Your poll app is not in INSTALLED_APPS properly.
>
> What does INSTALLED_APPS look like in your settings.py?
>
> What does your directory structure look like, starting with the directory in 
> which you ran startproject?
>
> Shawn

I have the site installed in /home/kevin/crossen/crossen, and the dir
listing is

__init__.py
__init__.pyc
manage.py
polls(dir)
settings.py
settings.pyc
testdb(sqlite3 database)
test.db(0bytes)
urls.py
urls.pyc


and the end of my settings.py file looks like this:

INSTALLED_APPS=(
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'crossen.polls'
)
The crossen.polls following the mystie.polls convention found in the
guide. I have tried it with just polls, same error

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Inline for model causes problem during save

[onorua]

Hello colleagues,

I have the models.py:
class User(models.Model):
LastName = models.CharField(max_length=50, verbose_name =
"Фамилия")
FirstName = models.CharField(max_length=50, verbose_name = "Имя")
MidleName = models.CharField(max_length=50, verbose_name =
"Отчество")

class SoldServices(models.Model):
state_choices = (
('ACT', u'Активно'),
('PAS', u'Пасивно'),
('TRM', u'Отключено'),
)
Service = models.ForeignKey('Service', verbose_name = 'Услуга')
User = models.ForeignKey('User', blank=True, null=True,
verbose_name = 'Пользователь', related_name='SoldService')
ValidFrom = models.DateTimeField(default=datetime.today(),
verbose_name = u"Активный с")
ValidTo = models.DateTimeField(verbose_name = u"Активный до")
State = models.CharField(default='ACT', max_length=3, choices =
state_choices , verbose_name="Состояние")

admin.py:
class SoldServicesInline(admin.TabularInline):
model = SoldServices

class UserAdmin(admin.ModelAdmin):
inlines = [SoldServicesInline]

When I'm trying to save the User model with Admin interface, it
through an error like Service and ValidTo should be set for all non
filled feelds in inline form.
How can I prevent this behavior? I need possibility to add new inlines
(I can't set extra=0), but I don't want to add this every time, and
this behavior looks strange to me.
When I change to blank=True, null=True, it create blank Sold services
as soon as I save the User which is not acceptable also.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Noticed some strange behaviour of request.GET.get()

[Bill Freeman]

String concatenate, format, comparison, indexing a dictionary*, all
work with mixed
types, unless the conversion from unicode to byte string can't be done with the
current codec when forced to bytestring, in which case you get a
suitable exception.

Besides, this wouldn't explain why the value of subdir_path is coming up u'http'
when his url is ...?subdir=public_html .


(Officially, attribute names, though used to do lookups in __dict__,
are not permitted
to have non-ASCII characters, according to the PEP that Karen often quotes.)

On Wed, Apr 7, 2010 at 2:56 PM, Daniel Roseman  wrote:
> On Apr 7, 9:40 am, Alexey Vlasov  wrote:
>> Hi.
>>
>> There's a simple code in urls.py:
>> ==
>> def ls (request):
>>     import os
>>
>>     out_html = ''
>>     home_path = '/home/www/test-django'
>>     # subdir_path = request.GET.get ('subdir')
>>     subdir_path = 'public_html'
>>
>>     for root, dirs, files in os.walk (os.path.join (home_path, subdir_path)):
>>         out_html += "%s\n" % root
>>
>>     return HttpResponse (out_html)
>> ==
>>
>> There's a catalogue in "home_path/subdir_path" which name
>> includes cyrillic symbols ( ):
>> $ pwd
>> /home/www/test-django/public_html
>> $ ls -la
>> drwx---r-x  4 test-django test-django  111 Apr  6 20:26 .
>> drwx--x--- 13 test-django test-django 4096 Apr  6 20:26 ..
>> -rw-r--r--  1 test-django test-django  201 Apr  6 17:43 .htaccess
>> -rwxr-xr-x  1 test-django test-django  911 Apr  6 16:38 index.fcgi
>> lrwxrwxrwx  1 test-django test-django   66 Mar 28 17:34 media -> ../
>> python/lib64/python2.5/site-packages/django/contrib/admin/media
>> drwxr-xr-x  2 test-django test-django    6 Apr  6 15:48
>>
>> My code works correct, here's the result:
>> $ curl -shttp://test-django.example.com/ls/
>> /home/www/test-django/public_html 
>> /home/www/test-django/public_html/ 
>>
>> But if I change "subdir_path = 'public_html'" to
>> "subdir_path = request.GET.get ('subdir')" then the request:
>> $ curl -shttp://test-django.example.com/ls/\?subdir=public_html
>> leads to an error:
>>
>> Request Method: GET
>> Request URL: http:// test-django.example.com/ls/
>> Django Version: 1.0.2 final
>> Python Version: 2.5.2
>> Installed Applications:
>> ['django.contrib.auth',
>>  'django.contrib.contenttypes',
>>  'django.contrib.sessions',
>>  'django.contrib.sites']
>> Installed Middleware:
>> ('django.middleware.common.CommonMiddleware',
>>  'django.contrib.sessions.middleware.SessionMiddleware',
>>  'django.contrib.auth.middleware.AuthenticationMiddleware')
>>
>> Traceback:
>> File "/home/www/test-django/python/lib64/python2.5/
>> site-packages/django/core/handlers/base.py" in get_response
>>   86.                 response = callback(request, *callback_args, 
>> **callback_kwargs)
>> File "/home/www/test-django/django/demo/urls.py" in ls
>>   40.     for root, dirs, files in os.walk (os.path.join (home_path, 
>> subdir_path)):
>> File "/usr/lib64/python2.5/os.py" in walk
>>   293.         if isdir(join(top, name)):
>> File "/usr/lib64/python2.5/posixpath.py" in isdir
>>   195.         st = os.stat(path)
>>
>> Exception Type: UnicodeEncodeError at /ls/
>> Exception Value: 'ascii' codec can't encode characters in position
>>  45-48: ordinal not in range(128)
>>
>> I don't understand it why "subdir_path" getting the same very value in one 
>> case works perfectly and in the
>> +other fails.
>>
>> Django runs following the instuctions
>> +http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/#runnin...
>> +h-apache
>>
>> --
>> BRGDS. Alexey Vlasov.
>
> I think I know the reason for the difference in hard-coding the string
> vs getting it from request.GET.
>
> Django always uses unicode strings internally, and this includes GET
> parameters. So your 'public_html' string is actually being converted
> to u'public_html', as you can see if you print the contents of
> request.GET. But your hard-coded string is a bytestring. If you used
> the unicode version - subdir_path = u'public_html'  - you would see
> the same result as with the GET version.
>
> As to why this is causing a problem when combined with os.walk and
> os.path.join, this is because of the rather strange behaviour of the
> functions in the os module. If you pass a unicode path parameter to
> them, they return results in unicode. But if you pass a bytestring
> parameter, the results are bytestrings. And since you have not
> declared a particular encoding, Python assumes it is ascii - and of
> course your Cyrillic filenames are not valid in ASCII.
>
> The problem should go away if you are careful to define *all* your
> strings as unicode - it is the mixture of unicode and bytestrings that
> is causing the problem. This means:
>    out_html = u''
>    home_path = u'/home/www/test-django'
>    ...
>        out_html += u"%s\n" % root
>
> --
> DR
>
> --
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post 

Re: Urgent Help Needed On Python/Django ModelChoiceFields

[Bill Freeman]

Well, where are things happening?  Do you make a new request for each
click, or do you want the changes to appear without a browser reload?

If the former, the ability to customize seems to imply a model representing
a choice, with a foreign key on the same model, allowing it to specify of
which choice it is a sub choice, giving you a blah_set queryset.  It can
contain whatever additional info you need, obviously.  Then the buttons
can be submit buttons of the form with the select representing the choice,
with various values, so you know which button, and the view will interpret
the buttons in the context of the selected choice.  That is, look up the
choice which contains info about what to do for each button.

If the latter, that's a bunch of javascript, and yes, you need to manage
the connections somewhere, but you don't want to be doing many DB
queries every time you load the page, so you probably want to cache
the tree, probably in a class variable (in RAM) on startup and whenever
the configuration is changed (via a custom form which you must be staff,
or whatever to view and submit, not part of the admin app).

Or I may still be completely misunderstanding your problem.

Bill

On Wed, Apr 7, 2010 at 2:54 PM, pedjk  wrote:
> Thanks Bill. I'll clarify.
>
> Basically what I want to do is give each option under the choice field
> a function. So once the user has selected an option under the drop
> down box, that would initiate a script which would generate a set of
> links (buttons) at the bottom of the page to take the user to the next
> step.
>
> So if under the drop down menu you choose "Done", that would
> automatically generate two links. One that says "Stop" and one that
> says "Close". What the links do isn't important, it's how to get the
> chosen option to generate the links that I don't know how to do.
>
> Someone mentioned to me to use a state table. I'm not sure what that
> means, but maybe others do.
>
> Now the reason I bring up the admin page is because I also want it to
> be customizable from there. So as an example, if selecting "Done"
> generates a "Stop" and a "Close" button, I might want to change those
> button and or their links at a later time, and I would want to do it
> from the admin page.
>
> Hopefully that clarifies things more and thanks again
>
> --
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to 
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Error when following the tutorial

[Shawn Milochik]

Your poll app is not in INSTALLED_APPS properly. 

What does INSTALLED_APPS look like in your settings.py?

What does your directory structure look like, starting with the directory in 
which you ran startproject?

Shawn

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Error when following the tutorial

[TheNational22]

I am following the django tutorial here. I have
followed it step by step. I am using sqlite3 as to not have to set up
a DB. When I get to python manage.py sql polls, it returns "Error: App
with labsl polls could not be found. Are you sure your installed apps
setting is correct?" I have a polls dir in my site dir, ans I added
the line crossen.polls(crossen being the site dir name). I have also
have tried it with just polls. Nothing doing. I have googled for the
answer, but no luck. Also, the irc chat is rejecting me based on a
lack of a password, but I cannot find a reference to a password
anywhere o the community sites. I can post screens of my dirs, but, as
I said I followed the tutorial exactly. Thanks.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

CSRF error while working through tutorial part 4

[Gang Fu]

Following the instruction, my settings.py has
...
MIDDLEWARE_CLASSES = (
'django.middleware.common.CommonMiddleware',
'django.contrib.csrf.middleware.CsrfMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
)
...

but I still get following error:

TemplateSyntaxError at /polls/1/

Invalid block tag: 'csrf_token'

Request Method: GET
Request URL:http://localhost:8001/polls/1/
Exception Type: TemplateSyntaxError
Exception Value:

Invalid block tag: 'csrf_token'

Exception Location: /usr/lib/pymodules/python2.6/django/template/
__init__.py in invalid_block_tag, line 335
Python Executable:  /usr/bin/python
Python Version: 2.6.4
Python Path:['/home/gangfu/main/bhcs', '/usr/lib/python2.6', '/usr/
lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/
python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/lib/
python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', '/
usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/pymodules/
python2.6', '/usr/lib/python2.6/dist-packages/gtk-2.0', '/usr/lib/
pymodules/python2.6/gtk-2.0', '/usr/local/lib/python2.6/dist-
packages']
Server time:Wed, 7 Apr 2010 16:41:57 -0400
Template error

In template /home/gangfu/main/bhcs/templates/polls/detail.html, error
at line 11
Invalid block tag: 'csrf_token'
1   
2   
3   BHCS Poll Details
4   
5   
6   
7   {{ poll.question }}
8   {% if error_message %}{{ error_message }}{%
endif %}
9
10  
11  {% csrf_token %}
12  {% for choice in poll.choice_set.all %}
13  
14  {{ choice.choice }}
15  {% endfor %}
16  
17  
18  
19  

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Double arrays in models django

[pmains]

If there is no Django model field for this, then one option would be
to create your own model field (http://docs.djangoproject.com/en/dev/
howto/custom-model-fields/). Of course, it would not be compatible
with most SQL Database types.

Of course, it may be easier to just rethink your data model. Would it
be possible to create one or more additional tables to avoid using an
unusual DB construct like a 2D array?

Could you explain the problem in a little more detail? Saying that you
want a 2-dimensional array is very abstract, but if we understand what
problem you are trying to solve, what data you are attempting to
model, it will be easier to give you useful suggestions.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: PK and FK questions

[Peter Herndon]

On Apr 7, 2010, at 11:45 AM, ojayred wrote:

> Hello All,
> 
> I am new to Django and thinking about migrating to Django from our
> existing web environment. I had a couple of questions that I would
> like help in answering them.  Your insight is greatly appreciated.
> Thank you.
> 
> 1) Considering, there is no support for Multiple Primary keys, how
> would Django react if my tables have multiple primary keys and I tried
> to update or delete a record? I am just curious.

I don't know the answer, but assuming you already have tables built in your 
database, you can run "manage.py inspectdb" to see what ORM code Django would 
generate from such a table.  If it generates something useful, then you are in 
business.  In short, test.  It shouldn't pose too much of a problem in a 
development environment.

> 
> 2) I read somewhere that each table must have one primary key? Some of
> our tables have no primary keys.

Then you are doing it wrong in your database.  Every table should have a 
primary key, regardless of how few rows it may have.  Otherwise, your database 
has (theoretically, not usually true in practice) no means of determining one 
row from another.  

As others have mentioned, a Django model by default uses an autoincremented 
integer field as an artificial primary key, if you don't otherwise specify a PK 
in the model definition.

> 
> 3) Is there a limit on the number of Foreign Keys in a table?

I don't believe Django imposes such a limit.  More likely, such a limit would 
be imposed by your database.

> 
> 4) How often would I need to patch and/or upgrade Django? And is this
> a difficult procedure?

It depends.  If your web application faces the public Internet, you will want 
to start with a current release of Django, and stay up to date with security 
and bugfix releases.  If your web app is internal-only, I would still argue you 
should update for bugfixes and security releases, but you could likely get away 
with not updating, depending on the security policies of your company.

You mention your test environment is OpenVMS.  I don't know much about OpenVMS, 
except to say that when I used VAX/VMS in college many years ago, it was not 
Unix.  As such, I don't know whether Python will work on your system.  Assuming 
it does, then Django itself should run well enough.  That also means that 
standard Python facilities for managing module installations should also work.  
You can thus use Distribute and Pip to keep your Django install up to date 
fairly easily.

The harder question is whether you will need to modify your application to run 
with the updated version of Django.  The Django core developers make a very 
strong effort to maintain backwards compatibility, and you can thus assume that 
updating from e.g. version 1.1.0 to 1.1.1 will be painless.  But migrating from 
1.1.x to 1.2 will only be *mostly* painless.  Again, you can assume that 
everything will be backwards-compatible, but there may be the odd exception in 
the case of a bugfix.  Much more likely, there will be new and improved 
functionality introduced that you will want to use, that will necessitate 
changes in your code.  For instance, 1.2 will introduce the ability to connect 
to multiple databases.  The means of specifying multiple db connections in the 
settings file has of course changed to accommodate the new features, though the 
old settings structure will continue to work as-is.

Finally, as you work on your application, you may find yourself needing to 
modify the database table structures -- assuming you allow Django's ORM to 
manage your tables, which is a common case.  In that situation, the changes to 
the underlying DDL can be automated using a Django-aware schema migration tool. 
 South (http://south.aeracode.org/) is one such tool.

---Peter Herndon

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: How to concatenate a list of Q objects?

[Vinicius Mendes]

If you want to mix AND and OR, you will have to do this manually:

q = (q1 | q2) & q3

__
Vinícius Mendes
Solucione Sistemas
http://solucione.info/


On Wed, Apr 7, 2010 at 3:56 PM, Daniel  wrote:

> Thanks alot guys.  If I can be honest, I'm having a little trouble
> digesting just this one line:
>
> q = q | f if q else f
>
> That line of code only allows (q1 | q2 | q3), right?
>
> It will not allow mixing "AND" as well as "OR" (i.e., q1 & q2 | q3)?
>
> Thanks!
>
>
>
> On Apr 7, 1:26 pm, Vinicius Mendes  wrote:
> > On Wed, Apr 7, 2010 at 2:00 PM, Tom Evans 
> wrote:
> > > On Wed, Apr 7, 2010 at 5:39 PM, Daniel  wrote:
> > > > Hi,
> >
> > > > Thank you for your help everyone.  I know that I need to learn python
> > > > better, and I did read those articles.  What is still a bit unclear
> to
> > > > me, though, is how could I add an "OR" or "AND" separator between Q
> > > > objects?
> >
> > > > So I have a list of qobjects like [qObj1, qObj2, qObj3].
> >
> > > > What I want is something like Sample.objects.filter((qObj1 | qObj2),
> > > > qObj3)
> >
> > > > I know that the default is for all Q objects to be "ANDed" together.
> > > > I think the join operation is not going to work here, nor is
> > > > concatenation, but is there something obvious that I'm missing?
> >
> > > > THANK YOU :>
> >
> > > Documentation on how to combine Q objects:
> >
> > >http://docs.djangoproject.com/en/1.1/topics/db/queries/#complex-looku.
> ..
> >
> > > So you want to loop through them, and 'or' them together..
> >
> > > filters = [ q1, q2, q3, q4, q5 ]
> > > q = None
> > > for f in filters:
> > >  q = q | f if q else f
> > > Foo.objects.filter(q)
> >
> > Refining a little:
> >
> > filters = [q1,q2,q3,q4,q5]
> > q = Q()
> > for f in filters:
> > q |= f
> > Foo.objects.filter(q)
> >
> > Q() is identity for & and |.
> >
> > > Tom
> >
> > > --
> > > You received this message because you are subscribed to the Google
> Groups
> > > "Django users" group.
> > > To post to this group, send email to django-us...@googlegroups.com.
> > > To unsubscribe from this group, send email to
> > > django-users+unsubscr...@googlegroups.com
> 
> >
> > > .
> > > For more options, visit this group at
> > >http://groups.google.com/group/django-users?hl=en.
> >
> > __
> > Vinícius Mendes
> > Solucione Sistemashttp://solucione.info/
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to
> django-users+unsubscr...@googlegroups.com
> .
> For more options, visit this group at
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Best solution to this problem?

[Marcos Marín]

Personally I like 2 best, it seems more flexible in case you later decide to
show different kinds of links or other information (like a note that says
the profile is viewable only to friends, etc.)

On Wed, Apr 7, 2010 at 14:02, mtnpaul  wrote:

> I have a logged in user. The user does a search for other uses on the
> system. The other users can have various type(s) of privacy set for
> their profiles.  Privacy levels are Public, Friend, Community (think
> Pinax  Tribe), and Private.
>
> I want to display a list of the users, and depending on the users
> relationship display a link to view the other persons profile (even
> users with a Private profile are to be in the list)
>
> Possible solutions.
>
> 1. Pass to the template a list of profiles, the profile will now have
> a new attribute called can_view_profile set according to the
> relationship (this is not a field on the model)
>
> 2. Create a new tag that will take as input the two users and return a
> link to the profile if appropriate.
>
> 3. Some better suggestion from you.
>
>
> The problem with one is that everything for the template was
> originally done for list of users that can be sorted , and changing it
> to profiles is a bit of pain.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to
> django-users+unsubscr...@googlegroups.com
> .
> For more options, visit this group at
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Best solution to this problem?

[mtnpaul]

I have a logged in user. The user does a search for other uses on the
system. The other users can have various type(s) of privacy set for
their profiles.  Privacy levels are Public, Friend, Community (think
Pinax  Tribe), and Private.

I want to display a list of the users, and depending on the users
relationship display a link to view the other persons profile (even
users with a Private profile are to be in the list)

Possible solutions.

1. Pass to the template a list of profiles, the profile will now have
a new attribute called can_view_profile set according to the
relationship (this is not a field on the model)

2. Create a new tag that will take as input the two users and return a
link to the profile if appropriate.

3. Some better suggestion from you.


The problem with one is that everything for the template was
originally done for list of users that can be sorted , and changing it
to profiles is a bit of pain.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Noticed some strange behaviour of request.GET.get()

[Daniel Roseman]

On Apr 7, 9:40 am, Alexey Vlasov  wrote:
> Hi.
>
> There's a simple code in urls.py:
> ==
> def ls (request):
>     import os
>
>     out_html = ''
>     home_path = '/home/www/test-django'
>     # subdir_path = request.GET.get ('subdir')
>     subdir_path = 'public_html'
>
>     for root, dirs, files in os.walk (os.path.join (home_path, subdir_path)):
>         out_html += "%s\n" % root
>
>     return HttpResponse (out_html)
> ==
>
> There's a catalogue in "home_path/subdir_path" which name
> includes cyrillic symbols ( ):
> $ pwd
> /home/www/test-django/public_html
> $ ls -la
> drwx---r-x  4 test-django test-django  111 Apr  6 20:26 .
> drwx--x--- 13 test-django test-django 4096 Apr  6 20:26 ..
> -rw-r--r--  1 test-django test-django  201 Apr  6 17:43 .htaccess
> -rwxr-xr-x  1 test-django test-django  911 Apr  6 16:38 index.fcgi
> lrwxrwxrwx  1 test-django test-django   66 Mar 28 17:34 media -> ../
> python/lib64/python2.5/site-packages/django/contrib/admin/media
> drwxr-xr-x  2 test-django test-django    6 Apr  6 15:48
>
> My code works correct, here's the result:
> $ curl -shttp://test-django.example.com/ls/
> /home/www/test-django/public_html 
> /home/www/test-django/public_html/ 
>
> But if I change "subdir_path = 'public_html'" to
> "subdir_path = request.GET.get ('subdir')" then the request:
> $ curl -shttp://test-django.example.com/ls/\?subdir=public_html
> leads to an error:
>
> Request Method: GET
> Request URL: http:// test-django.example.com/ls/
> Django Version: 1.0.2 final
> Python Version: 2.5.2
> Installed Applications:
> ['django.contrib.auth',
>  'django.contrib.contenttypes',
>  'django.contrib.sessions',
>  'django.contrib.sites']
> Installed Middleware:
> ('django.middleware.common.CommonMiddleware',
>  'django.contrib.sessions.middleware.SessionMiddleware',
>  'django.contrib.auth.middleware.AuthenticationMiddleware')
>
> Traceback:
> File "/home/www/test-django/python/lib64/python2.5/
> site-packages/django/core/handlers/base.py" in get_response
>   86.                 response = callback(request, *callback_args, 
> **callback_kwargs)
> File "/home/www/test-django/django/demo/urls.py" in ls
>   40.     for root, dirs, files in os.walk (os.path.join (home_path, 
> subdir_path)):
> File "/usr/lib64/python2.5/os.py" in walk
>   293.         if isdir(join(top, name)):
> File "/usr/lib64/python2.5/posixpath.py" in isdir
>   195.         st = os.stat(path)
>
> Exception Type: UnicodeEncodeError at /ls/
> Exception Value: 'ascii' codec can't encode characters in position
>  45-48: ordinal not in range(128)
>
> I don't understand it why "subdir_path" getting the same very value in one 
> case works perfectly and in the
> +other fails.
>
> Django runs following the instuctions
> +http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/#runnin...
> +h-apache
>
> --
> BRGDS. Alexey Vlasov.

I think I know the reason for the difference in hard-coding the string
vs getting it from request.GET.

Django always uses unicode strings internally, and this includes GET
parameters. So your 'public_html' string is actually being converted
to u'public_html', as you can see if you print the contents of
request.GET. But your hard-coded string is a bytestring. If you used
the unicode version - subdir_path = u'public_html'  - you would see
the same result as with the GET version.

As to why this is causing a problem when combined with os.walk and
os.path.join, this is because of the rather strange behaviour of the
functions in the os module. If you pass a unicode path parameter to
them, they return results in unicode. But if you pass a bytestring
parameter, the results are bytestrings. And since you have not
declared a particular encoding, Python assumes it is ascii - and of
course your Cyrillic filenames are not valid in ASCII.

The problem should go away if you are careful to define *all* your
strings as unicode - it is the mixture of unicode and bytestrings that
is causing the problem. This means:
out_html = u''
home_path = u'/home/www/test-django'
...
out_html += u"%s\n" % root

--
DR

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: How to concatenate a list of Q objects?

[Daniel]

Thanks alot guys.  If I can be honest, I'm having a little trouble
digesting just this one line:

q = q | f if q else f

That line of code only allows (q1 | q2 | q3), right?

It will not allow mixing "AND" as well as "OR" (i.e., q1 & q2 | q3)?

Thanks!



On Apr 7, 1:26 pm, Vinicius Mendes  wrote:
> On Wed, Apr 7, 2010 at 2:00 PM, Tom Evans  wrote:
> > On Wed, Apr 7, 2010 at 5:39 PM, Daniel  wrote:
> > > Hi,
>
> > > Thank you for your help everyone.  I know that I need to learn python
> > > better, and I did read those articles.  What is still a bit unclear to
> > > me, though, is how could I add an "OR" or "AND" separator between Q
> > > objects?
>
> > > So I have a list of qobjects like [qObj1, qObj2, qObj3].
>
> > > What I want is something like Sample.objects.filter((qObj1 | qObj2),
> > > qObj3)
>
> > > I know that the default is for all Q objects to be "ANDed" together.
> > > I think the join operation is not going to work here, nor is
> > > concatenation, but is there something obvious that I'm missing?
>
> > > THANK YOU :>
>
> > Documentation on how to combine Q objects:
>
> >http://docs.djangoproject.com/en/1.1/topics/db/queries/#complex-looku...
>
> > So you want to loop through them, and 'or' them together..
>
> > filters = [ q1, q2, q3, q4, q5 ]
> > q = None
> > for f in filters:
> >  q = q | f if q else f
> > Foo.objects.filter(q)
>
> Refining a little:
>
> filters = [q1,q2,q3,q4,q5]
> q = Q()
> for f in filters:
>     q |= f
> Foo.objects.filter(q)
>
> Q() is identity for & and |.
>
> > Tom
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Django users" group.
> > To post to this group, send email to django-us...@googlegroups.com.
> > To unsubscribe from this group, send email to
> > django-users+unsubscr...@googlegroups.com
> > .
> > For more options, visit this group at
> >http://groups.google.com/group/django-users?hl=en.
>
> __
> Vinícius Mendes
> Solucione Sistemashttp://solucione.info/

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Urgent Help Needed On Python/Django ModelChoiceFields

[pedjk]

Thanks Bill. I'll clarify.

Basically what I want to do is give each option under the choice field
a function. So once the user has selected an option under the drop
down box, that would initiate a script which would generate a set of
links (buttons) at the bottom of the page to take the user to the next
step.

So if under the drop down menu you choose "Done", that would
automatically generate two links. One that says "Stop" and one that
says "Close". What the links do isn't important, it's how to get the
chosen option to generate the links that I don't know how to do.

Someone mentioned to me to use a state table. I'm not sure what that
means, but maybe others do.

Now the reason I bring up the admin page is because I also want it to
be customizable from there. So as an example, if selecting "Done"
generates a "Stop" and a "Close" button, I might want to change those
button and or their links at a later time, and I would want to do it
from the admin page.

Hopefully that clarifies things more and thanks again

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: how to add a field to a model form when the field is not in the model

[Merrick]

Found the problem, thanks again for all of the help.

It turns out you have to define the extra field above def
__init__(self, *args, **kw) as in:

forms.py

class SomeForm(ModelForm):

checkbox = forms.BooleanField(required=False,
widget=forms.CheckboxInput(), label='some label')

def __init__(self, *args, **kw):
self.request = kw.pop('request')
super(SomeForm, self).__init__(*args, **kw)




On Apr 7, 10:19 am, Merrick  wrote:
> I appreciate all of the help, I was actually showing both Daniel and
> Raj that their suggestions have been tried to no result. To answer
> your question, look up at Raj's suggestion. My code before and after
> trying the suggestions above, is to have message defined outside of
> meta.
>
> Do you have a suggestion aside from that?
>
> Thanks.
>
> On Apr 7, 10:07 am, Tom Evans  wrote:
>
>
>
> > On Wed, Apr 7, 2010 at 5:30 PM, Merrick  wrote:
> > > Thank you.
>
> > > I'll be more specific, here is what I have:
>
> > > views.py
> > > -
> > > ...
> > > if request.method == 'POST':
> > >    some_form = SomeForm(data = request.POST, request=request,
> > > instance=somemodel)
> > >    ...
> > >    if some_form.is_valid():
> > >        some_form_update = some_form.save(commit=False)
> > >        if some_form.cleaned_data['checkbox']:
> > >            #do something
> > >            ...
> > >    return HttpResponseRedirect(reverse('app.views.somemodel_detail',
> > > args=(somemodel.key_id,)))
>
> > > else:
> > >    some_form = SomeForm(request=request, instance = somemodel)
>
> > >    return render_to_response("template.html", {'some_form':
> > > some_form}, context_instance=RequestContext(request))
>
> > > forms.py
> > > 
> > > class SomeForm(ModelForm):
>
> > >   def __init__(self, *args, **kw):
> > >        self.request = kw.pop('request')
> > >        super(SomeForm, self).__init__(*args, **kw)
>
> > >   #I originally had checkbox outside of meta but have tested both
> > > ways now
> > >   #checkbox = forms.BooleanField(required=False, label='Checkbox')
>
> > >    class Meta:
> > >        model = SomeModel
> > >        checkbox = forms.BooleanField(required=False,
> > > label='Checkbox')
>
> > This is wrong. Where did you see to put fields in a form in the Meta class?
>
> > class FooForm(forms.ModelForm):
> >   this_field_aint_on_the_model = forms.CharField(max_length=64)
> >   class Meta:
> >     model = Foo
>
> > Tom

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Noticed some strange behaviour of request.GET.get()

[Nuno Maltez]

The only difference I can see is that

request.GET.get ('subdir')

will return an unicode string, u"public_html", instead of a normal
string, 'public_html'.


If it works with the byte string, try changing the line to

subdir_path = str(request.GET.get('subdir'))

Nuno

2010/4/7 Alexey Vlasov :
> Hi.
>
> There's a simple code in urls.py:
> ==
> def ls (request):
>    import os
>
>    out_html = ''
>    home_path = '/home/www/test-django'
>    # subdir_path = request.GET.get ('subdir')
>    subdir_path = 'public_html'
>
>    for root, dirs, files in os.walk (os.path.join (home_path, subdir_path)):
>        out_html += "%s\n" % root
>
>    return HttpResponse (out_html)
> ==
>
> There's a catalogue in "home_path/subdir_path" which name
> includes cyrillic symbols (фыва):
> $ pwd
> /home/www/test-django/public_html
> $ ls -la
> drwx---r-x  4 test-django test-django  111 Apr  6 20:26 .
> drwx--x--- 13 test-django test-django 4096 Apr  6 20:26 ..
> -rw-r--r--  1 test-django test-django  201 Apr  6 17:43 .htaccess
> -rwxr-xr-x  1 test-django test-django  911 Apr  6 16:38 index.fcgi
> lrwxrwxrwx  1 test-django test-django   66 Mar 28 17:34 media -> ../
> python/lib64/python2.5/site-packages/django/contrib/admin/media
> drwxr-xr-x  2 test-django test-django    6 Apr  6 15:48 фыва
>
> My code works correct, here's the result:
> $ curl -s http://test-django.example.com/ls/
> /home/www/test-django/public_html 
> /home/www/test-django/public_html/фыва
>
> But if I change "subdir_path = 'public_html'" to
> "subdir_path = request.GET.get ('subdir')" then the request:
> $ curl -s http://test-django.example.com/ls/\?subdir=public_html
> leads to an error:
>
> Request Method: GET
> Request URL: http:// test-django.example.com/ls/
> Django Version: 1.0.2 final
> Python Version: 2.5.2
> Installed Applications:
> ['django.contrib.auth',
>  'django.contrib.contenttypes',
>  'django.contrib.sessions',
>  'django.contrib.sites']
> Installed Middleware:
> ('django.middleware.common.CommonMiddleware',
>  'django.contrib.sessions.middleware.SessionMiddleware',
>  'django.contrib.auth.middleware.AuthenticationMiddleware')
>
> Traceback:
> File "/home/www/test-django/python/lib64/python2.5/
> site-packages/django/core/handlers/base.py" in get_response
>  86.                 response = callback(request, *callback_args, 
> **callback_kwargs)
> File "/home/www/test-django/django/demo/urls.py" in ls
>  40.     for root, dirs, files in os.walk (os.path.join (home_path, 
> subdir_path)):
> File "/usr/lib64/python2.5/os.py" in walk
>  293.         if isdir(join(top, name)):
> File "/usr/lib64/python2.5/posixpath.py" in isdir
>  195.         st = os.stat(path)
>
> Exception Type: UnicodeEncodeError at /ls/
> Exception Value: 'ascii' codec can't encode characters in position
>  45-48: ordinal not in range(128)
>
> I don't understand it why "subdir_path" getting the same very value in one 
> case works perfectly and in the
> +other fails.
>
> Django runs following the instuctions
> +http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/#running-django-on-a-shared-hosting-provider-wit
> +h-apache
>
> --
> BRGDS. Alexey Vlasov.
>
> --
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to 
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: how to add a field to a model form when the field is not in the model

[Daniel Roseman]

On Apr 7, 6:19 pm, Merrick  wrote:
> I appreciate all of the help, I was actually showing both Daniel and
> Raj that their suggestions have been tried to no result. To answer
> your question, look up at Raj's suggestion. My code before and after
> trying the suggestions above, is to have message defined outside of
> meta.
>
> Do you have a suggestion aside from that?
>
> Thanks.

No other suggestions are needed, because Tom's answer is the correct
one. And I'm also not sure why you say you need to manually include
the html for the checkbox field, you should be able to output it
exactly the same as any other form field.

Are you sure the form is valid when you try and access cleaned_data?
Again, it would be helpful to see what you're doing in the view.
--
DR.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: PK and FK questions

[ojayred]

For responses to 1 and 3.
Is there somewhere I can look?  I guess I will have to test these
capabilities along with unique_together to resolve the Multiple PK
issue.

For 2, I will have to add them as suggested.

For 4.
Sorry, I couldn't understand. Can you explain it again. :)
I have a test environment on an OpenVMS 8.3.  What is south?

Thanks Marcos & Hinnack

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Noticed some strange behaviour of request.GET.get()

[Alexey Vlasov]

Hi Bill Freeman.

1. I don't know. Actually I'm not really a django-programmer, I'm only
busy with debugging. But IMHO, in this case it doesn't really matter
where the code is, it should work in urls.py too.

2. subdir_path  u'http'

On Wed, Apr 07, 2010 at 10:16:52AM -0400, Bill Freeman wrote:
> 1.  Why is this view code in urls.py?
> 
> 2.  What is the value of subdir_path in the trace back?  (There's a
> little arrow you can click to
> see the variable values fro the frame.)
> 
> 2010/4/7 Alexey Vlasov :
> > Hi.
> >
> > There's a simple code in urls.py:
> > ==
> > def ls (request):
> >    import os
> >
> >    out_html = ''
> >    home_path = '/home/www/test-django'
> >    # subdir_path = request.GET.get ('subdir')
> >    subdir_path = 'public_html'
> >
> >    for root, dirs, files in os.walk (os.path.join (home_path, subdir_path)):
> >        out_html += "%s\n" % root
> >
> >    return HttpResponse (out_html)
> > ==
> >
> > There's a catalogue in "home_path/subdir_path" which name
> > includes cyrillic symbols (фыва):
> > $ pwd
> > /home/www/test-django/public_html
> > $ ls -la
> > drwx---r-x  4 test-django test-django  111 Apr  6 20:26 .
> > drwx--x--- 13 test-django test-django 4096 Apr  6 20:26 ..
> > -rw-r--r--  1 test-django test-django  201 Apr  6 17:43 .htaccess
> > -rwxr-xr-x  1 test-django test-django  911 Apr  6 16:38 index.fcgi
> > lrwxrwxrwx  1 test-django test-django   66 Mar 28 17:34 media -> ../
> > python/lib64/python2.5/site-packages/django/contrib/admin/media
> > drwxr-xr-x  2 test-django test-django    6 Apr  6 15:48 фыва
> >
> > My code works correct, here's the result:
> > $ curl -s http://test-django.example.com/ls/
> > /home/www/test-django/public_html 
> > /home/www/test-django/public_html/фыва
> >
> > But if I change "subdir_path = 'public_html'" to
> > "subdir_path = request.GET.get ('subdir')" then the request:
> > $ curl -s http://test-django.example.com/ls/\?subdir=public_html
> > leads to an error:
> >
> > Request Method: GET
> > Request URL: http:// test-django.example.com/ls/
> > Django Version: 1.0.2 final
> > Python Version: 2.5.2
> > Installed Applications:
> > ['django.contrib.auth',
> >  'django.contrib.contenttypes',
> >  'django.contrib.sessions',
> >  'django.contrib.sites']
> > Installed Middleware:
> > ('django.middleware.common.CommonMiddleware',
> >  'django.contrib.sessions.middleware.SessionMiddleware',
> >  'django.contrib.auth.middleware.AuthenticationMiddleware')
> >
> > Traceback:
> > File "/home/www/test-django/python/lib64/python2.5/
> > site-packages/django/core/handlers/base.py" in get_response
> >  86.                 response = callback(request, *callback_args, 
> > **callback_kwargs)
> > File "/home/www/test-django/django/demo/urls.py" in ls
> >  40.     for root, dirs, files in os.walk (os.path.join (home_path, 
> > subdir_path)):
> > File "/usr/lib64/python2.5/os.py" in walk
> >  293.         if isdir(join(top, name)):
> > File "/usr/lib64/python2.5/posixpath.py" in isdir
> >  195.         st = os.stat(path)
> >
> > Exception Type: UnicodeEncodeError at /ls/
> > Exception Value: 'ascii' codec can't encode characters in position
> >  45-48: ordinal not in range(128)
> >
> > I don't understand it why "subdir_path" getting the same very value in one 
> > case works perfectly and in the
> > +other fails.
> >
> > Django runs following the instuctions
> > +http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/#running-django-on-a-shared-hosting-provider-wit
> > +h-apache
> >
> > --
> > BRGDS. Alexey Vlasov.
> >
> > --
> > You received this message because you are subscribed to the Google Groups 
> > "Django users" group.
> > To post to this group, send email to django-us...@googlegroups.com.
> > To unsubscribe from this group, send email to 
> > django-users+unsubscr...@googlegroups.com.
> > For more options, visit this group at 
> > http://groups.google.com/group/django-users?hl=en.
> >
> >
> 
> -- 
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to 
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/django-users?hl=en.
> 

-- 
BRGDS. Alexey Vlasov.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: How to concatenate a list of Q objects?

[Vinicius Mendes]

On Wed, Apr 7, 2010 at 2:00 PM, Tom Evans  wrote:

> On Wed, Apr 7, 2010 at 5:39 PM, Daniel  wrote:
> > Hi,
> >
> > Thank you for your help everyone.  I know that I need to learn python
> > better, and I did read those articles.  What is still a bit unclear to
> > me, though, is how could I add an "OR" or "AND" separator between Q
> > objects?
> >
> > So I have a list of qobjects like [qObj1, qObj2, qObj3].
> >
> > What I want is something like Sample.objects.filter((qObj1 | qObj2),
> > qObj3)
> >
> > I know that the default is for all Q objects to be "ANDed" together.
> > I think the join operation is not going to work here, nor is
> > concatenation, but is there something obvious that I'm missing?
> >
> > THANK YOU :>
> >
> >
>
> Documentation on how to combine Q objects:
>
> http://docs.djangoproject.com/en/1.1/topics/db/queries/#complex-lookups-with-q-objects
>
> So you want to loop through them, and 'or' them together..
>
> filters = [ q1, q2, q3, q4, q5 ]
> q = None
> for f in filters:
>  q = q | f if q else f
> Foo.objects.filter(q)
>
>
Refining a little:

filters = [q1,q2,q3,q4,q5]
q = Q()
for f in filters:
q |= f
Foo.objects.filter(q)

Q() is identity for & and |.


> Tom
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to
> django-users+unsubscr...@googlegroups.com
> .
> For more options, visit this group at
> http://groups.google.com/group/django-users?hl=en.
>
>

__
Vinícius Mendes
Solucione Sistemas
http://solucione.info/

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Urgent Help Needed On Python/Django ModelChoiceFields

[Bill Freeman]

Since it's urgent, I'll give an opinion despite not fully understanding your
description of the problem.

If it's going to be so far removed from what the admin app does by
default, I'd go with a custom view outside of the admin, which you
can customize to your heart's content.

That is, when it's really hard to fit something in an existing box, you
should probably build a different box.

Bill

On Wed, Apr 7, 2010 at 12:35 PM, pedjk  wrote:
> Ok, I'm quite new to Python and Django so this might actually have a
> simple solution.
>
> I'm coding for a form using Django and I have a ModelChoiceField. Now
> what I want to do is make the options for this field customizable. So
> if you choose an option, a set of links would be generated allowing
> you to move to the next step.
>
> All I know is that this should show up on the admin page for Django,
> and it might require a state table or some sort of back coding from
> mysql.
>
> If anyone could help, this is quite urgent.
>
> --
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to 
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: how to add a field to a model form when the field is not in the model

[Merrick]

I appreciate all of the help, I was actually showing both Daniel and
Raj that their suggestions have been tried to no result. To answer
your question, look up at Raj's suggestion. My code before and after
trying the suggestions above, is to have message defined outside of
meta.

Do you have a suggestion aside from that?

Thanks.

On Apr 7, 10:07 am, Tom Evans  wrote:
> On Wed, Apr 7, 2010 at 5:30 PM, Merrick  wrote:
> > Thank you.
>
> > I'll be more specific, here is what I have:
>
> > views.py
> > -
> > ...
> > if request.method == 'POST':
> >    some_form = SomeForm(data = request.POST, request=request,
> > instance=somemodel)
> >    ...
> >    if some_form.is_valid():
> >        some_form_update = some_form.save(commit=False)
> >        if some_form.cleaned_data['checkbox']:
> >            #do something
> >            ...
> >    return HttpResponseRedirect(reverse('app.views.somemodel_detail',
> > args=(somemodel.key_id,)))
>
> > else:
> >    some_form = SomeForm(request=request, instance = somemodel)
>
> >    return render_to_response("template.html", {'some_form':
> > some_form}, context_instance=RequestContext(request))
>
> > forms.py
> > 
> > class SomeForm(ModelForm):
>
> >   def __init__(self, *args, **kw):
> >        self.request = kw.pop('request')
> >        super(SomeForm, self).__init__(*args, **kw)
>
> >   #I originally had checkbox outside of meta but have tested both
> > ways now
> >   #checkbox = forms.BooleanField(required=False, label='Checkbox')
>
> >    class Meta:
> >        model = SomeModel
> >        checkbox = forms.BooleanField(required=False,
> > label='Checkbox')
>
> This is wrong. Where did you see to put fields in a form in the Meta class?
>
> class FooForm(forms.ModelForm):
>   this_field_aint_on_the_model = forms.CharField(max_length=64)
>   class Meta:
>     model = Foo
>
> Tom

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: how to add a field to a model form when the field is not in the model

[Tom Evans]

On Wed, Apr 7, 2010 at 5:30 PM, Merrick  wrote:
> Thank you.
>
> I'll be more specific, here is what I have:
>
> views.py
> -
> ...
> if request.method == 'POST':
>    some_form = SomeForm(data = request.POST, request=request,
> instance=somemodel)
>    ...
>    if some_form.is_valid():
>        some_form_update = some_form.save(commit=False)
>        if some_form.cleaned_data['checkbox']:
>            #do something
>            ...
>    return HttpResponseRedirect(reverse('app.views.somemodel_detail',
> args=(somemodel.key_id,)))
>
> else:
>    some_form = SomeForm(request=request, instance = somemodel)
>
>    return render_to_response("template.html", {'some_form':
> some_form}, context_instance=RequestContext(request))
>
>
>
> forms.py
> 
> class SomeForm(ModelForm):
>
>   def __init__(self, *args, **kw):
>        self.request = kw.pop('request')
>        super(SomeForm, self).__init__(*args, **kw)
>
>   #I originally had checkbox outside of meta but have tested both
> ways now
>   #checkbox = forms.BooleanField(required=False, label='Checkbox')
>
>    class Meta:
>        model = SomeModel
>        checkbox = forms.BooleanField(required=False,
> label='Checkbox')

This is wrong. Where did you see to put fields in a form in the Meta class?

class FooForm(forms.ModelForm):
  this_field_aint_on_the_model = forms.CharField(max_length=64)
  class Meta:
model = Foo


Tom

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: How to concatenate a list of Q objects?

[Tom Evans]

On Wed, Apr 7, 2010 at 5:39 PM, Daniel  wrote:
> Hi,
>
> Thank you for your help everyone.  I know that I need to learn python
> better, and I did read those articles.  What is still a bit unclear to
> me, though, is how could I add an "OR" or "AND" separator between Q
> objects?
>
> So I have a list of qobjects like [qObj1, qObj2, qObj3].
>
> What I want is something like Sample.objects.filter((qObj1 | qObj2),
> qObj3)
>
> I know that the default is for all Q objects to be "ANDed" together.
> I think the join operation is not going to work here, nor is
> concatenation, but is there something obvious that I'm missing?
>
> THANK YOU :>
>
>

Documentation on how to combine Q objects:
http://docs.djangoproject.com/en/1.1/topics/db/queries/#complex-lookups-with-q-objects

So you want to loop through them, and 'or' them together..

filters = [ q1, q2, q3, q4, q5 ]
q = None
for f in filters:
  q = q | f if q else f
Foo.objects.filter(q)

Tom

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: How to concatenate a list of Q objects?

[Daniel]

Hi,

Thank you for your help everyone.  I know that I need to learn python
better, and I did read those articles.  What is still a bit unclear to
me, though, is how could I add an "OR" or "AND" separator between Q
objects?

So I have a list of qobjects like [qObj1, qObj2, qObj3].

What I want is something like Sample.objects.filter((qObj1 | qObj2),
qObj3)

I know that the default is for all Q objects to be "ANDed" together.
I think the join operation is not going to work here, nor is
concatenation, but is there something obvious that I'm missing?

THANK YOU :>



On Apr 6, 7:14 am, Vinicius Mendes  wrote:
> I recommend you to read more documentation about python. It's a basic python
> feature. You can read more about it here:
>
> http://www.saltycrane.com/blog/2008/01/how-to-use-args-and-kwargs-in-...
>
> Try this:
>
> Sample.objects.filter(*qObjects)
>
> __
> Vinícius Mendes
> Solucione Sistemashttp://solucione.info/
>
> On Tue, Apr 6, 2010 at 2:54 AM, Aaron  wrote:
> > Sample.objects.filter(*qObjects)
>
> > On Apr 6, 1:10 am, Daniel  wrote:
> > > Hi, I think that this must be super easy, but I'm kind of stumped.
>
> > > I have a list qObjects = [qObject1, qObject2, qObject3]
> > > What I'd like is to form this query:  Sample.objects.filter(qObject1,
> > > qObject2, qObject3)
>
> > > How would I accomplish what I need?  Thanks!
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Django users" group.
> > To post to this group, send email to django-us...@googlegroups.com.
> > To unsubscribe from this group, send email to
> > django-users+unsubscr...@googlegroups.com
> > .
> > For more options, visit this group at
> >http://groups.google.com/group/django-users?hl=en.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Urgent Help Needed On Python/Django ModelChoiceFields

[pedjk]

Ok, I'm quite new to Python and Django so this might actually have a
simple solution.

I'm coding for a form using Django and I have a ModelChoiceField. Now
what I want to do is make the options for this field customizable. So
if you choose an option, a set of links would be generated allowing
you to move to the next step.

All I know is that this should show up on the admin page for Django,
and it might require a state table or some sort of back coding from
mysql.

If anyone could help, this is quite urgent.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

formset issue

[Emanuel]

I've send this post this morning:

Hi

I have a formset and I'm passing initial data:
  
  DeletionFormset = formset_factory(deletionForm, extra=0)
  formset = DeletionFormset(initial=make_initial_data(instance))

The initial data arrives to the constructor fine. 
When the construct bilds the forms it overrides a ChoiceField with a tuple 
wich comes on the make_initial_data return

def make_initial_data(i):
schools = School.objects.exclude(id=i.id)
s = []
for school in schools:
s.append((school.id, school.name))
n_schools = tuple(s)

pupils = Pupil.objects.filter(school=i)
ret = []
for pupil in pupils:
ret.append({
'pupil_id': pupil.id,
'pupil': pupil.user.get_full_name(),
'school': n_schools,
})
return ret

So far all works fine.

This is my form used in the formset:

class deletionForm(forms.Form):
  pupil_id = forms.IntegerField(widget=forms.HiddenInput)
  pupil = forms.CharField()
  action = forms.ChoiceField(widget=forms.RadioSelect(), 
choices=(('D',_('Delete')),('M',_('Move'
  school = forms.ChoiceField()

  def __init__(self, *args, **kwargs):
  super(deletionForm, self).__init__(*args, **kwargs)
  self.base_fields['school'] = 
forms.ChoiceField(choices=self.initial['school'])
  print self.base_fields['school'].choices

For testing it return a tuple with two indexes. In this print it shows the 
correct data in both select input, but in the form it only appears in the last 
select.

This the output for the print command: (school's names)
[(1, u'ABC'), (3, u'xpto')]
[(1, u'ABC'), (3, u'xpto')]


This is the select output in the rendered html:
...



 ...

HCT
xpto

...

What am I missing?

Thanks


After I sent it, somehow, it starts working by itself.
Now it doesn't work again. I've changed the form to only create the school 
field in the init but still doesn't work

My current code is now like this:
class deletionForm(forms.Form):
pupil_id = forms.IntegerField(widget=forms.HiddenInput)
pupil = forms.CharField()
action = forms.ChoiceField(widget=forms.RadioSelect(), 
choices=(('D',_('Delete')),('M',_('Move'
#school = forms.ChoiceField()

def __init__(self, *args, **kwargs):
super(deletionForm, self).__init__(*args, **kwargs)
print self.initial
if self.initial:
m_choices = self.initial['school']
self.base_fields['school'] = forms.ChoiceField(choices = m_choices)

If I print in the end of __init__ it's correct. But in the rendered html 
doesn't appear nothing in the first select.  But like this, because I'm only 
creating the school field in the init, in the first formset doesn't appear the 
select. Before it was empty, now it doesn't exists.

I spent all the afternoon googling for this, somebody know whats happening?

By the way, how can I put a selected attribute in one of the choices? In 
googling it says to put what I want to be default in value but doesn't do 
anything

Thanks

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: how to add a field to a model form when the field is not in the model

[Merrick]

Thank you.

I'll be more specific, here is what I have:

views.py
-
...
if request.method == 'POST':
some_form = SomeForm(data = request.POST, request=request,
instance=somemodel)
...
if some_form.is_valid():
some_form_update = some_form.save(commit=False)
if some_form.cleaned_data['checkbox']:
#do something
...
return HttpResponseRedirect(reverse('app.views.somemodel_detail',
args=(somemodel.key_id,)))

else:
some_form = SomeForm(request=request, instance = somemodel)

return render_to_response("template.html", {'some_form':
some_form}, context_instance=RequestContext(request))



forms.py

class SomeForm(ModelForm):

   def __init__(self, *args, **kw):
self.request = kw.pop('request')
super(SomeForm, self).__init__(*args, **kw)

   #I originally had checkbox outside of meta but have tested both
ways now
   #checkbox = forms.BooleanField(required=False, label='Checkbox')

class Meta:
model = SomeModel
checkbox = forms.BooleanField(required=False,
label='Checkbox')

On template.html I have to manually include the html for the message
input of type checkbox.

When I submit the form I get the error KeyError for the form field
"checkbox" that I manually added to template.html and debug points to
the line:

if some_form.cleaned_data['checkbox']:

Thanks again for helping.


On Apr 6, 11:46 pm, raj  wrote:
> On Apr 7, 8:05 am, Merrick  wrote:
>
> > How should I go about adding a field to a model form
> > when the field is not part of the model?
>
>  Define a Custom ModelForm by specifying model in Meta and declare the
> required addnl field there.
> (check-box means boolean, right?). Now set form attribute of your
> Admin class with the name of YourForm.
>
> Rajeesh.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

RE: Re: PK and FK questions

[Henrik Genssen]

Hi,

>> 1) Considering, there is no support for Multiple Primary keys, how
>> would Django react if my tables have multiple primary keys and I tried
>> to update or delete a record? I am just curious.
sorry, I do not know...

>> 2) I read somewhere that each table must have one primary key? Some of
>> our tables have no primary keys.
django adds one to each model, if you do not do it called "id"

>> 3) Is there a limit on the number of Foreign Keys in a table?
I do not think there is a limit, but do not know

>> 4) How often would I need to patch and/or upgrade Django? And is this
>> a difficult procedure?
depends on your OS - if you are on debian: apt-get update / upgrade if it is a 
minor update  - they
cept a lot of focus on backward capabilities
you may consider using south, if you have a lot of db changes yourself for 
migrating the db and the data

regards

Hinnack

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: PK and FK questions

[Marcos Marín]

Hi, I'm not too experienced with django myself so I will let someone else
answer the rest of your questions. But for 2, wouldn't it be fairly simple
to create primary keys for these tables? worst case scenario you just add a
column that is a auto_incremented int and run a script to set it for
existing rows.

On Wed, Apr 7, 2010 at 10:45, ojayred  wrote:

> Hello All,
>
> I am new to Django and thinking about migrating to Django from our
> existing web environment. I had a couple of questions that I would
> like help in answering them.  Your insight is greatly appreciated.
> Thank you.
>
> 1) Considering, there is no support for Multiple Primary keys, how
> would Django react if my tables have multiple primary keys and I tried
> to update or delete a record? I am just curious.
>
> 2) I read somewhere that each table must have one primary key? Some of
> our tables have no primary keys.
>
> 3) Is there a limit on the number of Foreign Keys in a table?
>
> 4) How often would I need to patch and/or upgrade Django? And is this
> a difficult procedure?
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to
> django-users+unsubscr...@googlegroups.com
> .
> For more options, visit this group at
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: DB Adapter for HTML5 Client Database Storage?

[Andy McKay]

Porting the Django ORM to Javascript would be great, but quite a lot of work. 
Go for it!

In the meantime I'm playing around (as noted in Daniels post) using the wrapper 
around lawnchair, which in turn stores stuff in the client side database if 
present, and to be honest that's enough for me ;)
--
  Andy McKay, @clearwind
  Django Consulting, Training and Support

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Deployment with Apache. Help !

[Pep]

Thanks for your answers.

Well, it's working now. But I don't understand why. I just add a
LocationMatch with a regular expression (CSS, png, etc.).

But the location still not working :=°

Any idea ?

On 7 avr, 17:36, Nadae Ivar Badio  wrote:
> hi Pep:
>
> Do you give permissions to apache to acces to your css directory?
>
> Pep wrote:
> > Hi everybody !
>
> > I didn't find the answer. I deployed my django project on a webserver
> > with apache. First, I started with Debug =  True and the website
> > worked fine.
>
> > So, I decided to do it with Debug = False. I could see my project but
> > not my CSS and other medias.
>
> > In the httpd.conf I just put the ServerName. I just configured the
> > file mysite in /etc/apache/sites-available/ with some Alias for the
> > media.
>
> > Here my virtualhost :
> >   1 
> >   2   ServerAdmin i...@domain.com
> >   3   ServerName  92.XXX.XX.XXX
> >   4   ServerAlias *.domain.com
> >   5   DocumentRoot /path/to/myproject
> >   6   
> >   7     SetHandler python-program
> >   8     PythonHandler django.core.handlers.modpython
> >   9     PythonPath "['/path/to/'] + sys.path"
> >  10     SetEnv DJANGO_SETTINGS_MODULE myproject.settings
> >  11     PythonDebug Off
> >  12   
> >  13
> >  14   Alias /web /path/to/myproject/web
> >  15   
> >  16     SetHandler None
> >  17   
> >  18 
>
> > Thanks for your help
>
> > PEP

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

PK and FK questions

[ojayred]

Hello All,

I am new to Django and thinking about migrating to Django from our
existing web environment. I had a couple of questions that I would
like help in answering them.  Your insight is greatly appreciated.
Thank you.

1) Considering, there is no support for Multiple Primary keys, how
would Django react if my tables have multiple primary keys and I tried
to update or delete a record? I am just curious.

2) I read somewhere that each table must have one primary key? Some of
our tables have no primary keys.

3) Is there a limit on the number of Foreign Keys in a table?

4) How often would I need to patch and/or upgrade Django? And is this
a difficult procedure?

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Deployment with Apache. Help !

[Nadae Ivar Badio]

hi Pep:

Do you give permissions to apache to acces to your css directory?



Pep wrote:

Hi everybody !

I didn't find the answer. I deployed my django project on a webserver
with apache. First, I started with Debug =  True and the website
worked fine.

So, I decided to do it with Debug = False. I could see my project but
not my CSS and other medias.

In the httpd.conf I just put the ServerName. I just configured the
file mysite in /etc/apache/sites-available/ with some Alias for the
media.

Here my virtualhost :
  1 
  2   ServerAdmin i...@domain.com
  3   ServerName  92.XXX.XX.XXX
  4   ServerAlias *.domain.com
  5   DocumentRoot /path/to/myproject
  6   
  7 SetHandler python-program
  8 PythonHandler django.core.handlers.modpython
  9 PythonPath "['/path/to/'] + sys.path"
 10 SetEnv DJANGO_SETTINGS_MODULE myproject.settings
 11 PythonDebug Off
 12   
 13
 14   Alias /web /path/to/myproject/web
 15   
 16 SetHandler None
 17   
 18 


Thanks for your help

PEP
  



--
You received this message because you are subscribed to the Google Groups "Django 
users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Deployment with Apache. Help !

[Johan Sommerfeld]

I had a similar problem when I went from "manage.py runserver" It was because I 
had some debugging prints within the code. Could it be that?

/J

On 7 apr 2010, at 17.09, Pep wrote:

> Hi everybody !
> 
> I didn't find the answer. I deployed my django project on a webserver
> with apache. First, I started with Debug =  True and the website
> worked fine.
> 
> So, I decided to do it with Debug = False. I could see my project but
> not my CSS and other medias.
> 
> In the httpd.conf I just put the ServerName. I just configured the
> file mysite in /etc/apache/sites-available/ with some Alias for the
> media.
> 
> Here my virtualhost :
>  1 
>  2   ServerAdmin i...@domain.com
>  3   ServerName  92.XXX.XX.XXX
>  4   ServerAlias *.domain.com
>  5   DocumentRoot /path/to/myproject
>  6   
>  7 SetHandler python-program
>  8 PythonHandler django.core.handlers.modpython
>  9 PythonPath "['/path/to/'] + sys.path"
> 10 SetEnv DJANGO_SETTINGS_MODULE myproject.settings
> 11 PythonDebug Off
> 12   
> 13
> 14   Alias /web /path/to/myproject/web
> 15   
> 16 SetHandler None
> 17   
> 18 
> 
> 
> Thanks for your help
> 
> PEP
> 
> -- 
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to 
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/django-users?hl=en.
> 

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Deployment with Apache. Help !

[andreas schmid]

thats because you are serving your static media with django on
debug=True but you don't serve it over apache on debug=False
http://docs.djangoproject.com/en/dev/howto/static-files/
http://docs.djangoproject.com/en/dev/howto/deployment/modpython/#serving-media-files



Pep wrote:
> Hi everybody !
>
> I didn't find the answer. I deployed my django project on a webserver
> with apache. First, I started with Debug =  True and the website
> worked fine.
>
> So, I decided to do it with Debug = False. I could see my project but
> not my CSS and other medias.
>
> In the httpd.conf I just put the ServerName. I just configured the
> file mysite in /etc/apache/sites-available/ with some Alias for the
> media.
>
> Here my virtualhost :
>   1 
>   2   ServerAdmin i...@domain.com
>   3   ServerName  92.XXX.XX.XXX
>   4   ServerAlias *.domain.com
>   5   DocumentRoot /path/to/myproject
>   6   
>   7 SetHandler python-program
>   8 PythonHandler django.core.handlers.modpython
>   9 PythonPath "['/path/to/'] + sys.path"
>  10 SetEnv DJANGO_SETTINGS_MODULE myproject.settings
>  11 PythonDebug Off
>  12   
>  13
>  14   Alias /web /path/to/myproject/web
>  15   
>  16 SetHandler None
>  17   
>  18 
>
>
> Thanks for your help
>
> PEP
>
>   

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Deployment with Apache. Help !

[Pep]

Hi everybody !

I didn't find the answer. I deployed my django project on a webserver
with apache. First, I started with Debug =  True and the website
worked fine.

So, I decided to do it with Debug = False. I could see my project but
not my CSS and other medias.

In the httpd.conf I just put the ServerName. I just configured the
file mysite in /etc/apache/sites-available/ with some Alias for the
media.

Here my virtualhost :
  1 
  2   ServerAdmin i...@domain.com
  3   ServerName  92.XXX.XX.XXX
  4   ServerAlias *.domain.com
  5   DocumentRoot /path/to/myproject
  6   
  7 SetHandler python-program
  8 PythonHandler django.core.handlers.modpython
  9 PythonPath "['/path/to/'] + sys.path"
 10 SetEnv DJANGO_SETTINGS_MODULE myproject.settings
 11 PythonDebug Off
 12   
 13
 14   Alias /web /path/to/myproject/web
 15   
 16 SetHandler None
 17   
 18 


Thanks for your help

PEP

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Custom QuerySet method that has an instance.save() error

[Tom M]

Ok, I definitely did this before posting, but deleting all .pyc files
in the django path (again) did fix it this time (as suggested
somewhere). How confusing is pdb to show you a .py source code file,
with no apparent problem, when the mismatch occurred in a .pyc for a
previous and different .py file?



On Apr 6, 5:53 pm, Tom M  wrote:
> Hi,
>
> I'm trying to use Model Managers to write some per model
> functionality. I have a Book model that needs to be able to convert
> some of it's members into SoldBook items.
>
> I want to be able to do:
> Book.objects.filter(supplier='Jones').convert_sold()
>
> I'm basing my code 
> onhttp://stackoverflow.com/questions/2163151?tab=votes#tab-top
> but my model looks like this:
>
> from custom_queryset import CustomQuerySetManager #see link above
> from django.db.models.query import QuerySet
>
> class Book(models.Model):
>     objects = CustomQuerySetManager()
>
>     class QuerySet(QuerySet):
>         def convert_sold(self):
>             for book in self.all():
>                 sb = SoldBook()
>                 sb.title = book.title
>                 #etc
>                 sb.save()
>                 book.delete()
>
> but when I call it with
> Book.objects.filter(supplier='Jones').convert_sold()
>
> File "/home/user/webapps/django/lib/python2.5/django/db/models/sql/
> compiler.py", line 843, in as_sql
>     placeholder = field.get_placeholder(val, self.connection)
> TypeError: get_placeholder() takes exactly 2 arguments (3 given)
>
> Unfortunately I'm using django trunk revision 11728 (5 months old?)
> because webfaction haven't fixed their GIS database support for more
> recent djangos :-(
>
> Any idea how to fix this would be greatly appreciated.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Noticed some strange behaviour of request.GET.get()

[Bill Freeman]

1.  Why is this view code in urls.py?

2.  What is the value of subdir_path in the trace back?  (There's a
little arrow you can click to
see the variable values fro the frame.)

2010/4/7 Alexey Vlasov :
> Hi.
>
> There's a simple code in urls.py:
> ==
> def ls (request):
>    import os
>
>    out_html = ''
>    home_path = '/home/www/test-django'
>    # subdir_path = request.GET.get ('subdir')
>    subdir_path = 'public_html'
>
>    for root, dirs, files in os.walk (os.path.join (home_path, subdir_path)):
>        out_html += "%s\n" % root
>
>    return HttpResponse (out_html)
> ==
>
> There's a catalogue in "home_path/subdir_path" which name
> includes cyrillic symbols (фыва):
> $ pwd
> /home/www/test-django/public_html
> $ ls -la
> drwx---r-x  4 test-django test-django  111 Apr  6 20:26 .
> drwx--x--- 13 test-django test-django 4096 Apr  6 20:26 ..
> -rw-r--r--  1 test-django test-django  201 Apr  6 17:43 .htaccess
> -rwxr-xr-x  1 test-django test-django  911 Apr  6 16:38 index.fcgi
> lrwxrwxrwx  1 test-django test-django   66 Mar 28 17:34 media -> ../
> python/lib64/python2.5/site-packages/django/contrib/admin/media
> drwxr-xr-x  2 test-django test-django    6 Apr  6 15:48 фыва
>
> My code works correct, here's the result:
> $ curl -s http://test-django.example.com/ls/
> /home/www/test-django/public_html 
> /home/www/test-django/public_html/фыва
>
> But if I change "subdir_path = 'public_html'" to
> "subdir_path = request.GET.get ('subdir')" then the request:
> $ curl -s http://test-django.example.com/ls/\?subdir=public_html
> leads to an error:
>
> Request Method: GET
> Request URL: http:// test-django.example.com/ls/
> Django Version: 1.0.2 final
> Python Version: 2.5.2
> Installed Applications:
> ['django.contrib.auth',
>  'django.contrib.contenttypes',
>  'django.contrib.sessions',
>  'django.contrib.sites']
> Installed Middleware:
> ('django.middleware.common.CommonMiddleware',
>  'django.contrib.sessions.middleware.SessionMiddleware',
>  'django.contrib.auth.middleware.AuthenticationMiddleware')
>
> Traceback:
> File "/home/www/test-django/python/lib64/python2.5/
> site-packages/django/core/handlers/base.py" in get_response
>  86.                 response = callback(request, *callback_args, 
> **callback_kwargs)
> File "/home/www/test-django/django/demo/urls.py" in ls
>  40.     for root, dirs, files in os.walk (os.path.join (home_path, 
> subdir_path)):
> File "/usr/lib64/python2.5/os.py" in walk
>  293.         if isdir(join(top, name)):
> File "/usr/lib64/python2.5/posixpath.py" in isdir
>  195.         st = os.stat(path)
>
> Exception Type: UnicodeEncodeError at /ls/
> Exception Value: 'ascii' codec can't encode characters in position
>  45-48: ordinal not in range(128)
>
> I don't understand it why "subdir_path" getting the same very value in one 
> case works perfectly and in the
> +other fails.
>
> Django runs following the instuctions
> +http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/#running-django-on-a-shared-hosting-provider-wit
> +h-apache
>
> --
> BRGDS. Alexey Vlasov.
>
> --
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to 
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Forcing a specific language

[Daniel Baron]

Hi all,

is it possible to force a specific language (I am talking about real 
languages, i18n) while rendering a template?


I have an application which allows the user to choose a language and I 
set a default language in the settings. But now I want to render only 
one single page forcing a specific language which is NOT the default 
language (but is part of my LANGUAGES settings, although it may not be 
the users language).


I can not simple turn off translation because in this template I am 
using language sensitive filters and model names which would than return 
strings according to the default language. So I would like to force a 
language setting.


Thanks in advance,
Daniel

--
You received this message because you are subscribed to the Google Groups "Django 
users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Noticed some strange behaviour of request.GET.get()

[Alexey Vlasov]

Hi.

There's a simple code in urls.py:
==
def ls (request):
import os

out_html = ''
home_path = '/home/www/test-django'
# subdir_path = request.GET.get ('subdir')
subdir_path = 'public_html'

for root, dirs, files in os.walk (os.path.join (home_path, subdir_path)):
out_html += "%s\n" % root

return HttpResponse (out_html)
==

There's a catalogue in "home_path/subdir_path" which name
includes cyrillic symbols (фыва):
$ pwd
/home/www/test-django/public_html
$ ls -la
drwx---r-x  4 test-django test-django  111 Apr  6 20:26 .
drwx--x--- 13 test-django test-django 4096 Apr  6 20:26 ..
-rw-r--r--  1 test-django test-django  201 Apr  6 17:43 .htaccess
-rwxr-xr-x  1 test-django test-django  911 Apr  6 16:38 index.fcgi
lrwxrwxrwx  1 test-django test-django   66 Mar 28 17:34 media -> ../
python/lib64/python2.5/site-packages/django/contrib/admin/media
drwxr-xr-x  2 test-django test-django6 Apr  6 15:48 фыва

My code works correct, here's the result:
$ curl -s http://test-django.example.com/ls/
/home/www/test-django/public_html 
/home/www/test-django/public_html/фыва

But if I change "subdir_path = 'public_html'" to
"subdir_path = request.GET.get ('subdir')" then the request:
$ curl -s http://test-django.example.com/ls/\?subdir=public_html
leads to an error:

Request Method: GET
Request URL: http:// test-django.example.com/ls/
Django Version: 1.0.2 final
Python Version: 2.5.2
Installed Applications:
['django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.sites']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware')

Traceback:
File "/home/www/test-django/python/lib64/python2.5/
site-packages/django/core/handlers/base.py" in get_response
  86. response = callback(request, *callback_args, 
**callback_kwargs)
File "/home/www/test-django/django/demo/urls.py" in ls
  40. for root, dirs, files in os.walk (os.path.join (home_path, 
subdir_path)):
File "/usr/lib64/python2.5/os.py" in walk
  293. if isdir(join(top, name)):
File "/usr/lib64/python2.5/posixpath.py" in isdir
  195. st = os.stat(path)

Exception Type: UnicodeEncodeError at /ls/
Exception Value: 'ascii' codec can't encode characters in position
 45-48: ordinal not in range(128)

I don't understand it why "subdir_path" getting the same very value in one case 
works perfectly and in the
+other fails.

Django runs following the instuctions
+http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/#running-django-on-a-shared-hosting-provider-wit
+h-apache

--
BRGDS. Alexey Vlasov.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Newbie: New user creation with forms

[Nicola Noonan]

yes i followed that tutorial and can't even get that one working!

On Wed, Apr 7, 2010 at 12:31 PM, Daniel Roseman wrote:

> On Apr 7, 12:13 pm, Nicola Noonan  wrote:
> > I want to create a user with a form and i want that user to be able to
> > submit data, see i'm building a website and it's a gossip site, i need to
> > let other users log on and insert data such as gossip, news, articles. Im
> > not sure where to begin, i have a rough idea about the forms but its
> > actually saving the data and displaying it from that user is whats
> difficult
> > for me.
>
> Did you follow the tutorial? Part 4 covers creating forms and saving
> data from them.
> http://docs.djangoproject.com/en/1.1/intro/tutorial04/
> --
> DR.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to
> django-users+unsubscr...@googlegroups.com
> .
> For more options, visit this group at
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Newbie: New user creation with forms

[Daniel Roseman]

On Apr 7, 12:13 pm, Nicola Noonan  wrote:
> I want to create a user with a form and i want that user to be able to
> submit data, see i'm building a website and it's a gossip site, i need to
> let other users log on and insert data such as gossip, news, articles. Im
> not sure where to begin, i have a rough idea about the forms but its
> actually saving the data and displaying it from that user is whats difficult
> for me.

Did you follow the tutorial? Part 4 covers creating forms and saving
data from them.
http://docs.djangoproject.com/en/1.1/intro/tutorial04/
--
DR.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: Newbie: New user creation with forms

[Nicola Noonan]

I want to create a user with a form and i want that user to be able to
submit data, see i'm building a website and it's a gossip site, i need to
let other users log on and insert data such as gossip, news, articles. Im
not sure where to begin, i have a rough idea about the forms but its
actually saving the data and displaying it from that user is whats difficult
for me.

On Wed, Apr 7, 2010 at 2:29 AM, Wiiboy  wrote:

> What exactly do you mean by, "Create a user and allow that user to
> submit data such as messages"?
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to
> django-users+unsubscr...@googlegroups.com
> .
> For more options, visit this group at
> http://groups.google.com/group/django-users?hl=en.
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: inner join operation on legacy tables?

[Daniel Roseman]

On Apr 6, 7:26 pm, "jani.mono...@gmail.com" 
wrote:
> > The generated model from inspectdb is only a best guess, but there's
> > nothing to stop you editing it. If your field really is a foreign key,
>
> Not really a foreign key,both tables have a string field ID which is
> the same,
> and unique in one table. So it could be a foreign key except it is not
> explicitly
> set in MySQL (so not only in the inspectdb output, but in the original
> tables as well)

I think you should still be able to define the Django field as a
ForeignKey, as long as you set the 'to_field' attribute to the
relevant field on the target model. It shouldn't matter that the
database field doesn't have a foreign key constraint - these don't
exist on MyISAM tables within MySQL, or in sqlite3, both of which
Django supports.
--
DR.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: DB Adapter for HTML5 Client Database Storage?

[Russell Keith-Magee]

On Wed, Apr 7, 2010 at 3:45 PM, Victor Hooi  wrote:
> heya,
>
> This is a bit of random musing, but I was wondering, how big a project
> is it to write a DB adapter for the Client-side Client-side Database
> Storage API in HTML5?
>
> That is, there are already efforts to integrate in things like CouchDB
> and MongoDB models, surely using HTML5's client-side Storage wouldn't
> be too much of a stretch.
>
> Are there any large barriers to an effort like this?

Django makes available all the model metadata you would need to
approach such a project. The biggest impediment is time and
inclination.

It's not a simple task (especially when you start to approach
synchronization between client and server-side), but it's certainly an
interesting problem if you're looking for a challenge.

Yours,
Russ Magee %-)

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

formset issue

[Emanuel]

Hi

I have a formset and I'm passing initial data:
  
  DeletionFormset = formset_factory(deletionForm, extra=0)
  formset = DeletionFormset(initial=make_initial_data(instance))

The initial data arrives to the constructor fine. 
When the construct bilds the forms it overrides a ChoiceField with a tuple 
wich comes on the make_initial_data return

def make_initial_data(i):
schools = School.objects.exclude(id=i.id)
s = []
for school in schools:
s.append((school.id, school.name))
n_schools = tuple(s)

pupils = Pupil.objects.filter(school=i)
ret = []
for pupil in pupils:
ret.append({
'pupil_id': pupil.id,
'pupil': pupil.user.get_full_name(),
'school': n_schools,
})
return ret

So far all works fine.

This is my form used in the formset:

class deletionForm(forms.Form):
  pupil_id = forms.IntegerField(widget=forms.HiddenInput)
  pupil = forms.CharField()
  action = forms.ChoiceField(widget=forms.RadioSelect(), 
choices=(('D',_('Delete')),('M',_('Move'
  school = forms.ChoiceField()

  def __init__(self, *args, **kwargs):
  super(deletionForm, self).__init__(*args, **kwargs)
  self.base_fields['school'] = 
forms.ChoiceField(choices=self.initial['school'])
  print self.base_fields['school'].choices

For testing it return a tuple with two indexes. In this print it shows the 
correct data in both select input, but in the form it only appears in the last 
select.

This the output for the print command: (school's names)
[(1, u'ABC'), (3, u'xpto')]
[(1, u'ABC'), (3, u'xpto')]


This is the select output in the rendered html:
...



 ...

HCT
xpto

...

What am I missing?

Thanks

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: DB Adapter for HTML5 Client Database Storage?

[Daniel Hilton]

On 7 April 2010 08:45, Victor Hooi  wrote:
> heya,
>
> This is a bit of random musing, but I was wondering, how big a project
> is it to write a DB adapter for the Client-side Client-side Database
> Storage API in HTML5?
>
> That is, there are already efforts to integrate in things like CouchDB
> and MongoDB models, surely using HTML5's client-side Storage wouldn't
> be too much of a stretch.

Related but still not true html5 storage is lawnchair & Deckchair:

http://www.agmweb.ca/blog/andy/2250/

HTH
Dan

>
> Are there any large barriers to an effort like this?
>
> Cheers,
> Victor
>
> --
> You received this message because you are subscribed to the Google Groups 
> "Django users" group.
> To post to this group, send email to django-us...@googlegroups.com.
> To unsubscribe from this group, send email to 
> django-users+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/django-users?hl=en.
>
>



-- 
Dan Hilton

www.twitter.com/danhilton
www.DanHilton.co.uk


-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

DB Adapter for HTML5 Client Database Storage?

[Victor Hooi]

heya,

This is a bit of random musing, but I was wondering, how big a project
is it to write a DB adapter for the Client-side Client-side Database
Storage API in HTML5?

That is, there are already efforts to integrate in things like CouchDB
and MongoDB models, surely using HTML5's client-side Storage wouldn't
be too much of a stretch.

Are there any large barriers to an effort like this?

Cheers,
Victor

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Double arrays in models django

[zimberlman]

Hi, I need help.
I know that in PostgreSQL, there is a type of data as arrays, and
double.
But I was unpleasantly surprised why there is no such models in
django.
The question is how do I get out of this situation?
I need to keep a two-dimensional matrix, and two-dimensional array
would be ideal podoshol for this. And all because the matrix will grow
over time, and the number of columns will be several thousand.
I know that two-dimensional matrix can be stored in the table, but I
do not know how I implement this in the models.
Large please write in simple language, I had trouble reading in
English, I would be uncomfortable and then translate it into Russian.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: how to add a field to a model form when the field is not in the model

[Daniel Roseman]

On Apr 7, 4:05 am, Merrick  wrote:
> I added a checkbox form field to my template, and I even tried to add
> it in my forms.py and then in my views.py I check for it like so:
>
> if form.cleaned_data['checkbox_field']:
>   code to send email...
>
> But when I submit the form I get a KeyError. How should I go about
> adding a field to a model form when the field is not part of the
> model?
>
> Thanks.

Defining it in the form should work. What did you do? Show us the
code.
--
DR.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.

Re: how to add a field to a model form when the field is not in the model

[raj]

On Apr 7, 8:05 am, Merrick  wrote:
> How should I go about adding a field to a model form
> when the field is not part of the model?

 Define a Custom ModelForm by specifying model in Meta and declare the
required addnl field there.
(check-box means boolean, right?). Now set form attribute of your
Admin class with the name of YourForm.

Rajeesh.

-- 
You received this message because you are subscribed to the Google Groups 
"Django users" group.
To post to this group, send email to django-us...@googlegroups.com.
To unsubscribe from this group, send email to 
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/django-users?hl=en.