Re: django and ldap

[andreas schmid]

Mike Dewhirst wrote:
> On 4/02/2010 11:14pm, David De La Harpe Golden wrote:
>> On 04/02/10 08:33, andreas schmid wrote:
>>> @brad: can you show me some sample code for this?
>>>
>
> David
>
> I am using Peter Herndon's django-ldap-groups successfully. He has two
> backends; one for Novell's eDirectory which I'm using and another for
> MS Active Directory which I haven't tried.
>
>http://pypi.python.org/pypi/django-ldap-groups/0.1.3
>
> ... and here the relevant bits of my settings.py. Peter's comments all
> start on a new line while mine don't. I haven't adjusted anything here
> - this is working code. The getcreds() method simply fetches userid
> and password from a non-versioned file. I try and keep such stuff out
> of the repository  ...
>
> ssl = True  # switch between SSL and non-SSL
> SEARCH_DN = 'O=pq8nw'   # Organization name
> # NT4_DOMAIN is used with Active Directory only, comment out for
> eDirectory
> # NT4_DOMAIN = 'EXAMPLE'
> # sAMAccountName is used with Active Directory
> # Use the following for Active Directory
> # SEARCH_FIELDS =
> ['mail','givenName','sn','sAMAccountName','memberOf','cn']
> # Use the following for Novell eDirectory
> # SEARCH_FIELDS = ['mail', 'givenName', 'sn', 'groupMembership', 'cn']
> SEARCH_FIELDS = ['mail', 'givenName', 'sn', 'groupMembership', 'cn']
>
> nds = credsdir + APP + '.nds'   # contains credentials
> cred = getcreds(nds)# returns a 2-element list
> BIND_USER = 'cn=%s,%s' % (cred[0], SEARCH_DN)
> BIND_PASSWORD = cred[1] # valid password too
> # CERT_FILE = ''# not used if ssl == False
> ldap_srv = '192.168.0.108'
> ldap_port = 389
> protocol = 'ldap'
> if ssl:
> protocol = 'ldaps'
> ldap_port = 636
> CERT_FILE = credsdir + 'cert_pq8nw_9a30.b64'
>
> LDAP_URL = protocol + '://%s:%s' % (ldap_srv, ldap_port)
>
> AUTHENTICATION_BACKENDS = (
> 'ldap_groups.accounts.backends.eDirectoryGroupMembershipSSLBackend',
>
> #'ldap_groups.accounts.backends.ActiveDirectoryGroupMembershipSSLBackend',
>
> 'django.contrib.auth.backends.ModelBackend',
> )
>
im experimenting with django-ldap-groups too now and im going forward.
its still not working how i want but ill test it a bit more.

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[ANN] djangogolf

[Kenneth Gonsalves]

Hi,

I just released djangogolf - software for managing golf tournaments. The 
scoring module is ready, handicapping and draw are in the pipeline. The demo 
site is here: http://greenchilly.in/ - feedback, feature requests and 
contributions are welcome.

-- 
regards
Kenneth Gonsalves
Senior Project Officer
NRC-FOSS
http://nrcfosshelpline.in/web/

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Re: update with where clause constraints?

[Karen Tracey]

On Thu, Feb 4, 2010 at 8:08 PM, Jared Smith  wrote:

> My use case is that I'll have multiple users trying to update a set of
> objects and I want to make sure that any user committing a change has
> knowledge of the existing state.  I was going to model that with a version
> number so an update would look like:
>
> update table set col=foo, col1=bar where id=pknum &&
> version_number=
>
> Desired result are the following::
>
> --If a user has the correct previous version the update goes through
> --if they don't have the correct previous version it should do nothing
> (I'll throw an exception or return something to the upper layer to indicate
> the fact that the user needs to try again from the latest version...)
>
> My question is how can I do an update like the above in Django?
>

http://docs.djangoproject.com/en/dev/topics/db/queries/#updating-multiple-objects-at-once

Though it sounds like you do not want to update multiple at once, you can
use the same call and know based on its returned value (it returns how many
rows it updated) whether it worked or not. If one is returned, you know the
version read was unchanged for the update and all is fine.  If zero is
returned then apparently someone else changed the row in the meantime. (You
probably also want to include an increment of the version_number field as an
F expression in the update call.)

Karen

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update with where clause constraints?

[Jared Smith]

My use case is that I'll have multiple users trying to update a set of
objects and I want to make sure that any user committing a change has
knowledge of the existing state.  I was going to model that with a version
number so an update would look like:

update table set col=foo, col1=bar where id=pknum && version_number=

Desired result are the following::

--If a user has the correct previous version the update goes through
--if they don't have the correct previous version it should do nothing (I'll
throw an exception or return something to the upper layer to indicate the
fact that the user needs to try again from the latest version...)

My question is how can I do an update like the above in Django?  It looks
like the save API hides the fact whether it is insert or update; however I
can easily determine this myself (haven't found a way that I can add
additional criteria on the update).  I saw the following patch:

http://code.djangoproject.com/ticket/2705

And that could maybe meet my needs but I'm wondering if there is any
existing way to accomplish this without having to patch Django? (hoping I'm
missing some existing way to accomplish this)

Please let me know if you have any suggestions.

Thanks,

Jared

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Re: django and ldap

[Mike Dewhirst]

On 4/02/2010 11:14pm, David De La Harpe Golden wrote:

On 04/02/10 08:33, andreas schmid wrote:

@brad: can you show me some sample code for this?



David

I am using Peter Herndon's django-ldap-groups successfully. He has two 
backends; one for Novell's eDirectory which I'm using and another for MS 
Active Directory which I haven't tried.


   http://pypi.python.org/pypi/django-ldap-groups/0.1.3

... and here the relevant bits of my settings.py. Peter's comments all 
start on a new line while mine don't. I haven't adjusted anything here - 
this is working code. The getcreds() method simply fetches userid and 
password from a non-versioned file. I try and keep such stuff out of the 
repository  ...


ssl = True  # switch between SSL and non-SSL
SEARCH_DN = 'O=pq8nw'   # Organization name
# NT4_DOMAIN is used with Active Directory only, comment out for eDirectory
# NT4_DOMAIN = 'EXAMPLE'
# sAMAccountName is used with Active Directory
# Use the following for Active Directory
# SEARCH_FIELDS = ['mail','givenName','sn','sAMAccountName','memberOf','cn']
# Use the following for Novell eDirectory
# SEARCH_FIELDS = ['mail', 'givenName', 'sn', 'groupMembership', 'cn']
SEARCH_FIELDS = ['mail', 'givenName', 'sn', 'groupMembership', 'cn']

nds = credsdir + APP + '.nds'   # contains credentials
cred = getcreds(nds)# returns a 2-element list
BIND_USER = 'cn=%s,%s' % (cred[0], SEARCH_DN)
BIND_PASSWORD = cred[1] # valid password too
# CERT_FILE = ''# not used if ssl == False
ldap_srv = '192.168.0.108'
ldap_port = 389
protocol = 'ldap'
if ssl:
protocol = 'ldaps'
ldap_port = 636
CERT_FILE = credsdir + 'cert_pq8nw_9a30.b64'

LDAP_URL = protocol + '://%s:%s' % (ldap_srv, ldap_port)

AUTHENTICATION_BACKENDS = (
'ldap_groups.accounts.backends.eDirectoryGroupMembershipSSLBackend',

#'ldap_groups.accounts.backends.ActiveDirectoryGroupMembershipSSLBackend',
'django.contrib.auth.backends.ModelBackend',
)

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Re: Ajax with Django

[Prashanth]

On Fri, Feb 5, 2010 at 2:49 AM, Rohan Shah  wrote:
> Any good documentation available on how to implement AJAX with Django ?
>

http://www.b-list.org/weblog/2006/jul/31/django-tips-simple-ajax-example-part-1/


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Prashanth
twitter: munichlinux
blog: prashanthblog.appspot.com
irc: munichlinux, JSLint, munichpython.

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Re: Ajax with Django

[Jonathan Orlando]

http://code.google.com/p/dojango/

What is dojango

Dojango is a reusable django application that helps you to use the
client-side framework dojo within your django project.

   - It provides capabilites to easily switch between several dojo versions
   and sources (e.g. aol, google, local)
   - Delivers helping utilities, that makes the development of rich internet
   applications in combination with dojo more comfortable.
   - It makes the building of your own packed dojo release easier.

Another goal of this project is, that you can learn how you have to
structure your html to use dojo within your projects.


_
@jonathanorlando
Linux user # 458151
Geek Emprendedor !!
Cucuta / Norte de Santander / Colombia


2010/2/4 Rohan Shah 

> Any good documentation available on how to implement AJAX with Django ?
>
> --
> Thanks and Regards,
> Rohan Shah
>
>
> ++[>>++>+++>+-]
> >++. >+++.---. ---.. >++. <<+. >--.
> ---.+++.
>
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Re: Ajax with Django

[Gonzalo Delgado]

El 04/02/10 18:19, Rohan Shah escribió:
> Any good documentation available on how to implement AJAX with Django ? 
http://lmgtfy.com/?q=django+ajax=1

-- 
Gonzalo Delgado 

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Re: Problem when trying to validate a field in a ModelAdmin which has inline forms

[mrts]

See http://code.djangoproject.com/ticket/12780 .

I will upload a patch and provide an example,
but I can't yet say when.

Best,
Mart Sõmermaa

On Jan 15, 8:10 pm, Gabriel Reis  wrote:
> Hey Marcos,
>
> In the clean() method of my ClipModelForm class I couldn't manage how to
> reach the ClipDescriptions that are coming from the inline
> ClipDescriptionInline. I think I can't validate there. I spent the whole day
> trying and I couldn't fix. Any help would be very handy!
>
> Thanks for your atention.
>
> Kind regards,
>
> Gabriel
>
> Gabriel de Carvalho Nogueira Reis
> Software Developer
> +44 7907 823942
>
> On Fri, Jan 15, 2010 at 4:45 PM, Marco Rogers wrote:
>
> > I've never had to do this but it sounds you want to work with
> > Form.clean() in stead of Form.clean_is_approved().  From the docs:
>
> >    "The Form subclass’s clean() method. This method can perform any
> > validation that requires access to multiple fields from the form at
> > once."
>
> > So in your clean method you would grab the submitted inlines and check
> > them against the is_approved field on the Clip.  I'm not a django
> > expert, but that's where I would start.  Good luck.
>
> > :Marco
>
> > On Jan 14, 6:45 pm, Gabriel Reis  wrote:
> > > Hi people,
>
> > > I am having some problem to validate a data in my application. I will try
> > to
> > > simply the model in here to help you guys to understand the problem.
> > > I have 2 models:
>
> > > class Clip(models.Model):
> > >     is_approved = models.BooleanField(default=False)
> > >     language = models.ForeignKey(Language)
>
> > > class ClipDescription(models.Model):
> > >     clip = models.ForeignKey(Clip)
> > >     text = models.TextField()
> > >     language = models.ForeignKey(Language)
>
> > > I am editing via ModelAdmin. I defined a ClipModelAdmin class as above
> > > (simplified):
>
> > > class ClipAdmin(admin.ModelAdmin):
> > >     inlines = [
> > >         ClipDescriptionInline
> > >     ]
>
> > > So, as you can see, both Clip and ClipDescription are edited in the same
> > > page (using the 'inlines' feature).
>
> > > But the rule is: if the user trigger the 'Save' action, the attribute
> > > Clip.is_approved can be True only if there is a ClipDescription instance
> > > associated to the Clip instance, having the same language. For example,
> > if I
> > > have a clip with id=1, language=english and is_approved=True, it can be
> > > saved only if there is a clip description with clip_id=1,
> > language=english.
> > > If not, I want to show the error message 'Cannot approve this clip
> > without
> > > having a description in English' in the form.
>
> > > I have already read the official documentation and tried to work with
> > > validators, tried to define a ModelForm and its clean_is_approved method,
> > > among other workarounds. And I still couldn't make this work. The problem
> > is
> > > at the clean_is_approved context I couldn't figure out how to get access
> > to
> > > the form data that is being entered at that moment, to retrieve the Clip
> > > descriptions.
>
> > > I don't if I was clear enough, I can give more details. Any ideas and
> > > suggestions will be very appreciated.
>
> > > Thank you very much for your attention.
>
> > > Kind regards,
>
> > > Gabriel
>
> > > Gabriel de Carvalho Nogueira Reis
> > > Software Developer
> > > +44 7907 823942
>
> > --
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Ajax with Django

[Rohan Shah]

Any good documentation available on how to implement AJAX with Django ?

-- 
Thanks and Regards,
Rohan Shah


++[>>++>+++>+-]
>++. >+++.---. ---.. >++. <<+. >--.
---.+++.

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Re: django-debug-toolbar with runserver not running on localhost

[HARRY POTTRER]

gah you're correct, I can't believe I missed that setting. thanks

On Feb 4, 4:48 pm, rebus_  wrote:
> On 4 February 2010 22:06, HARRY POTTRER  wrote:
>
> > I've noticed that if I run the django dev server on localhost, debug-
> > toolbar works, but if I try to run he server like this:
>
> > ./manage.py runserver 192.168.1.145:8000
>
> > the site will work, but the toolbar won't show up. Is there a work-
> > around for this?
>
> > --
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>
> Do you maybe have INTERNAL_IPS set in your settings?
> It's used to decide on which addresses the toolbar will be shown.
>
> Read more about this on:http://github.com/robhudson/django-debug-toolbar.

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Re: django-debug-toolbar with runserver not running on localhost

[rebus_]

On 4 February 2010 22:06, HARRY POTTRER  wrote:
> I've noticed that if I run the django dev server on localhost, debug-
> toolbar works, but if I try to run he server like this:
>
> ./manage.py runserver 192.168.1.145:8000
>
> the site will work, but the toolbar won't show up. Is there a work-
> around for this?
>
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>
>

Do you maybe have INTERNAL_IPS set in your settings?
It's used to decide on which addresses the toolbar will be shown.

Read more about this on:
http://github.com/robhudson/django-debug-toolbar.

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entering scores (one model) for a list of students (another model)

[Tim Arnold]

I'm creating a form that students fill in as they arrive at class.
Just name, email, etc.
When the class is over I want to display a form for the teacher to
enter the grades.

So, no problem on the students entering their info, I just have a
Student model.
I have a Score model that has the score and a ForeignKey to the
student.

That makes sense to me, but I'm have bunches of trouble figuring out
how to display the form to the teacher

I want a list of student names with an  form for each grade. So
I'm figuring a formset is what I need, based on the Score model. But I
don't get how to associate the student with the score the teacher
enters.

thanks for any pointers.
--Tim Arnold

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django-debug-toolbar with runserver not running on localhost

[HARRY POTTRER]

I've noticed that if I run the django dev server on localhost, debug-
toolbar works, but if I try to run he server like this:

./manage.py runserver 192.168.1.145:8000

the site will work, but the toolbar won't show up. Is there a work-
around for this?

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Re: how to activate DJANGO.CORE.CONTEXT_PROCESSORS.REQUEST

[weiwei]

Thanks a lot, i did miss to pass

context_instance=RequestContext(request) in

my view code

def access(request):
return
render_to_response('tool.html',context_instance=RequestContext(request))

after I added "context_instance=RequestContext(request)"

It is working now like a charm!

Thanks again!


On Feb 4, 11:54 am, Karen Tracey  wrote:
> On Thu, Feb 4, 2010 at 2:39 PM, weiwei  wrote:
> > Thanks..
>
> > Here is my code
>
> You repeated the code for the template tag and the context processors
> setting; that's not what I asked for.
>
> I still don't see the code for the view that renders the template that
> includes the template tag you are working with.  That is the code that must
> specify a RequestContext if you want to access the variables set by the
> request context processor in your template tag. The context processor won't
> set variables in a plain Context, the view code (or whatever code is
> supplying the context for the template render) must specify a
> RequestContext. See for example 'some_view' under:
>
> http://docs.djangoproject.com/en/dev/ref/templates/api/#id1
>
> Karen

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Re: how to activate DJANGO.CORE.CONTEXT_PROCESSORS.REQUEST

[Karen Tracey]

On Thu, Feb 4, 2010 at 2:39 PM, weiwei  wrote:

> Thanks..
>
> Here is my code
>
>
You repeated the code for the template tag and the context processors
setting; that's not what I asked for.

I still don't see the code for the view that renders the template that
includes the template tag you are working with.  That is the code that must
specify a RequestContext if you want to access the variables set by the
request context processor in your template tag. The context processor won't
set variables in a plain Context, the view code (or whatever code is
supplying the context for the template render) must specify a
RequestContext. See for example 'some_view' under:

http://docs.djangoproject.com/en/dev/ref/templates/api/#id1

Karen

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Re: how to activate DJANGO.CORE.CONTEXT_PROCESSORS.REQUEST

[weiwei]

Thanks..

Here is my code

from django import template
from django.template import RequestContext

register = template.Library()


@register.inclusion_tag('userinfo.html',takes_context = True)
def userinfo(context):
request = context['request']
address = request.session['address']
return {'address':address}

 and request = context['request'] causing problem, seems context
doesn't have a key 'request'


And i do have

TEMPLATE_CONTEXT_PROCESSORS =(
"django.core.context_processors.request",
"django.core.context_processors.auth",
"django.core.context_processors.debug",
"django.core.context_processors.i18n",
"django.core.context_processors.media",
)

in settings.py
On Feb 4, 11:17 am, Karen Tracey  wrote:
> On Thu, Feb 4, 2010 at 1:41 PM, weiwei  wrote:
> > "DJANGO.CORE.CONTEXT_PROCESSORS.REQUEST
> > If TEMPLATE_CONTEXT_PROCESSORS contains this processor, every
> > RequestContext will contain a variable request, which is the current
> > HttpRequest. Note that this processor is not enabled by default;
> > you'll have to activate it. " from this page
>
> >http://docs.djangoproject.com/en/dev/ref/templates/api/
>
> > But i didn't find how to activate it
>
> You activate it by including it in TEMPLATE_CONTEXT_PROCESSORS in
> settings.py.  That is all you have to do.
>
> > Here is my question
>
> >http://stackoverflow.com/questions/2160261/access-request-in-django-c...
>
> > after i followed the answer i still got errors
>
> I do not see where you show the view code in that question. Possibly you are
> not using a RequestContext to render the template?
>
> Karen

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Trying to get an image in a RadioSelect

[Jeffrey Taggarty]

Hi,

I am trying to get an image as a label in a RadioSelect... I have been
trying to get a grasp on using the RadioFieldRenderer() but I am
having no luck.

I currently have this in my widgets.py

from django.forms import widgets
from django.utils.encoding import force_unicode
from django.utils.safestring import mark_safe

class BackgroundRadioRenderer(widgets.RadioFieldRenderer):
def render(self):
return mark_safe(u'\n'.join([u'' % w for w in
self]))


I current have this in my forms.py

class ExampleForm(forms.Form):
CHOICES = (
(1,'thumb1.gif'),
(2,'thumb2.gif'),
(3,'thumb3.gif'),
(4,'thumb4.gif'),
)
background =
forms.ChoiceField(choices=CHOICES,widget=forms.RadioSelect(renderer=BackgroundRadioRenderer))

The output of this is:

 thumb1.gif">
 thumb2.gif">
 thumb3.gif">
 thumb4.gif">

How can I get the image to be the actual label itself?

Thanks


Jeff

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When does syncd create new tables

[Joakim Hove]

Hello,

I am developing my models. I have quite a lot of legacy data which I
have to take into account, so I try hard to understand the logic of
syncdb. My current situation is as follows:

  1. I had written the model defintion of several models in Python and
created the corresponding tables with "./manage.py syncdb".
  2. I then realized that I needed to change the model definitions
somewhat. Then I:
   a) Deleted the databes tables manually, using a regular
databese client. I did not touch tables like ~ auth_user.
   b) I updatet my models.py files.
   c) I tried to recreate the tables with "./manage.py syncdb" -
but to no avail, nothing happened?

Any tips on what I am doing wrong greatly appreciated.

Joakim

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Re: how to activate DJANGO.CORE.CONTEXT_PROCESSORS.REQUEST

[Karen Tracey]

On Thu, Feb 4, 2010 at 1:41 PM, weiwei  wrote:

> "DJANGO.CORE.CONTEXT_PROCESSORS.REQUEST
> If TEMPLATE_CONTEXT_PROCESSORS contains this processor, every
> RequestContext will contain a variable request, which is the current
> HttpRequest. Note that this processor is not enabled by default;
> you'll have to activate it. " from this page
>
> http://docs.djangoproject.com/en/dev/ref/templates/api/
>
> But i didn't find how to activate it
>
>
You activate it by including it in TEMPLATE_CONTEXT_PROCESSORS in
settings.py.  That is all you have to do.



> Here is my question
>
>
> http://stackoverflow.com/questions/2160261/access-request-in-django-custom-template-tags
>
> after i followed the answer i still got errors
>
>
I do not see where you show the view code in that question. Possibly you are
not using a RequestContext to render the template?

Karen

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Re: CheddarGetter module for Django/Python - easy recurring billing

[Eric Chamberlain]

On Feb 1, 2010, at 1:11 PM, Jason Ford wrote:

> Anyone who's built commercial web app knows that payment processing
> can be one of the toughest pieces to put in place - and it can
> distract you from working on the core functionality of your app.
> CheddarGetter is a web service that abstracts the entire process of
> managing credit cards, processing transactions on a recurring basis,
> and even more complex setups like free trials, setup fees, and overage
> charges.
> 
> We're using CheddarGetter for FeedMagnet.com and we thought the Django
> community in general could benefit from the module we wrote to
> interact with it. More just just a Python wrapper for CheddarGetter,
> pycheddar gives you class objects that work a lot like Django models,
> making the whole experience of integrating with CheddarGetter just a
> little more awesome and Pythonic.
> 
> - Jason

Jason,

We are looking at recurring billing systems, could you give some more info on 
why you chose CheddarGetter over Paypal or Amazon FPS?

--
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Re: It looks like Django is working from a stale DB. What am I doing wrong?

[Karen Tracey]

On Thu, Feb 4, 2010 at 12:02 PM, Luke Sneeringer
wrote:

> Good morning, everyone!
> Apologies in advance if this is the wrong place to ask this question.
>
> First of all, the setup. I'm using MySQL and InnoDB tables.
>
> I've encountered an unusual problem, which has reared its ugly head on
> several fronts. The basic jist is that Django seems to not recognize
> database changes made...
>
[snip]

>
> What am I doing wrong?
>

You are seeing the same things as described in this thread:

http://groups.google.com/group/django-users/browse_thread/thread/e25cec400598c06d

Karen

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Re: django and ldap

[brad]

On Feb 4, 2:33 am, andreas schmid  wrote:
> @brad: can you show me some sample code for this?

the code that I have is all very specific to  where I work.  I'd have
to clean it up a bit to try to make it useful to you.

There's also several other people who have posted snippets for
backends based on LDAP or Active Directory:
http://www.djangosnippets.org/tags/ldap/

A few of these are very similar to what I've done. I'd suggest taking
it look.

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Is there a way to access a field's verbose_name from a object_list generic view template?

[Eric Chamberlain]

I'm using the object_list  generic view and it seems there should be a way to 
pull the field verbose_name from the model, without having to hard code the 
name in the template.

Any suggestions?

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Re: Django standards?

[Phlip]

On Feb 4, 10:29 am, David Parker  wrote:

> Right on.  I haven't gotten much into testing Django yet.  My previous
> experience is with Rails (RSpec/Shoulda/Cucumber) and Java (JUnit).  I
> plan on actually driving my app with TDD, but I was curious to know
> which "way" most developers in the Django arena code their url
> patterns

Ooops sorry - I work on a mature project where I have not actually
used url patterns yet, so I was just blowing smoke!

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how to activate DJANGO.CORE.CONTEXT_PROCESSORS.REQUEST

[weiwei]

"DJANGO.CORE.CONTEXT_PROCESSORS.REQUEST
If TEMPLATE_CONTEXT_PROCESSORS contains this processor, every
RequestContext will contain a variable request, which is the current
HttpRequest. Note that this processor is not enabled by default;
you'll have to activate it. " from this page

http://docs.djangoproject.com/en/dev/ref/templates/api/

But i didn't find how to activate it

Here is my question

http://stackoverflow.com/questions/2160261/access-request-in-django-custom-template-tags

after i followed the answer i still got errors

TemplateSyntaxError at / Caught an exception while rendering:
'request' Original Traceback (most recent call last): File "C:
\Python25\lib\site-packages\django\template\debug.py", line 71, in
render_node result = node.render(context) File "C:\Python25\lib\site-
packages\django\template__init__.py", line 936, in render dict =
func(*args) File "c:\...\myapp_extras.py", line 7, in login request =
context['request'] File "C:\Python25\lib\site-packages\django\template
\context.py", line 44, in getitem raise KeyError(key) KeyError:
'request'

tho code causing problem is

request = context['request']




Thanks for any help!

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Re: Django standards?

[David Parker]

Right on.  I haven't gotten much into testing Django yet.  My previous
experience is with Rails (RSpec/Shoulda/Cucumber) and Java (JUnit).  I
plan on actually driving my app with TDD, but I was curious to know
which "way" most developers in the Django arena code their url
patterns (granted, I understand what you mean... if it's well tested,
then does it really matter which way it is designed?).

On Feb 4, 11:08 am, Phlip  wrote:
> David Parker wrote:
> >     verses = Verse.objects.filter(version__iexact=version,
> > book__iexact=book, chapter__iexact=chapter, verse__iexact=verse)
> >   else:
> >     logging.debug("chapter: " + chapter)
> >     logging.debug("verse  : " + verse)
> >     logging.debug("verse2 : " + verse2)
> > Now, is this the standard way of doing this kind of thing?  Or should
> > I break the method up into different methods and have several
> > different url patterns?  Thanks!
>
> Thou shalt write developer tests. ("Unit tests".)
>
> Each of your temporary debug statements should instead be permanent
> assert_equal() statements.
>
> Tested code is, perforce, highly decoupled, so that tests can easily
> reach any situation. So Test-Driven Development tends to obviate
> questions about design - the best design is the one that works under
> pressure from both test cases and the real application.
>
> --
>   Phlip
>  http://twitter.com/Pen_Bird

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uniquely identifying an entry

[harryos]

hi
(sorry about this  newbie  question..)
I have designed an entry and a category as follows.
The entry doesn't have a title.(The user is not expected to provide a
title for it )It is uniquely identified by a combination of its
published datetime and the name of the category it belongs to.

class MyCategory(models.Model):
name=models.CharField(max_length=10)
description=models.TextField()
slug=models.SlugField(unique=True)

def __unicode__(self):
return self.name

class MyEntry(models.Model):
posted_time=models.DateTimeField(default=datetime.now)
category=models.ForeignKey(MyCategory)
description=models.TextField()
author=models.ForeignKey(User)

def __unicode__(self):
return "%s%s"%(self.category.name,self.posted_time)

I would like to list all entries posted at different minutes in an
hour. and also show the details of a single entry.I am not sure how I
can do this.

I am wondering if I can get details of an entry like
/myapp/entries/2010/jan/01/10/35/splcat
sothat I can get an entry belonging to 'splcat' posted at 10 hrs,35
minutes on 1st jan 2010. Is there some way I can do lookup on the
hour,minute of posted_time?


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Re: Django standards?

[Phlip]

David Parker wrote:

>     verses = Verse.objects.filter(version__iexact=version,
> book__iexact=book, chapter__iexact=chapter, verse__iexact=verse)
>   else:
>     logging.debug("chapter: " + chapter)
>     logging.debug("verse  : " + verse)
>     logging.debug("verse2 : " + verse2)

> Now, is this the standard way of doing this kind of thing?  Or should
> I break the method up into different methods and have several
> different url patterns?  Thanks!

Thou shalt write developer tests. ("Unit tests".)

Each of your temporary debug statements should instead be permanent
assert_equal() statements.

Tested code is, perforce, highly decoupled, so that tests can easily
reach any situation. So Test-Driven Development tends to obviate
questions about design - the best design is the one that works under
pressure from both test cases and the real application.

--
  Phlip
  http://twitter.com/Pen_Bird

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Re: Please Help With POST Problem

[Bill Freeman]

If you are running behind, for example, apache, and the content type headers are
correct, apache might expand the gzip stuff for you.  I wouldn't be surprised to
find that the python/django http request stuff doesn't handle gzip,
but it might.
It might be possible to return an error response saying coding not accepted,
prompting gnip to retry without gzip.  I've certainly seen spotty adherence to
standards for applications to do posts for non-browserish things.  The "None"
as request.encoding is suspicious, if that is spelled correctly.

As diagnostic stuff you might poke in the request object (using pdb on the
development server) to see if they are correctly setting the content type for
the mime part.  And you could catch the post earlier than where it
gets converted
to a querydict (possibly using python urllib(2), et al rather than
django) to save
the post section to a file and see if it gunzips.  If the data is good
gzipped stuff,
and the headers are correct, then you know to look on your (python,
django, front
end server) side.  If the headers are bogus, you should push back to get gnip to
fix them.

Good luck.

On Thu, Feb 4, 2010 at 9:15 AM, Kenneth Loafman
 wrote:
> Guys,
>
> I hope you can help with a major Django problem I'm having.  I have a
> feed from Gnip 2.0 using POST and its coming in as pure garbage in
> request.POST, like below:
>
> None
> twitter keyword
> [04/Feb/2010 13:55:15] "POST /api/gnip/collect/twitter/keyword/
> HTTP/1.0" 200 7
> POST = ' {u'm...@\u0480\ufffd\ufffd\ufffd\ufffda\ufffd\ufffdtp\ufffd\\\ufffd\ufffd...
> META = '{'PYTHONIOENCODING': 'UTF-8', 'wsgi.multiprocess': False,...
> len raw = 693
>
> The structure of the QueryDict, when printed fully, is a dictionary,
> complete with garbage keys and values.
>
> The code for this is quite simple:
> def api_gnip_collect( request, publisher=None, rule_type=None ):
>    print request.encoding
>    request.encoding = "utf-8"   # I've tried utf-8,16,32,zlib,...
>    print publisher, rule_type
>    print "POST = '%s'" % request.POST
>    print "META = '%s'" % request.META
>    print "len raw =", len( request.raw_post_data )
>
> So, Gnip's other customers, not using Django, are not having this
> problem.  Gnip says that the POST is gzip encoded.  Is it possible that
> Django is not handling gzip'ed input?
>
> I've tried this on all versions 0.96 through 1.2alpha.  No luck.
>
> ...Thanks,
> ...Ken
>
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Re: Django bases blog solutions

[Joel Stransky]

Thanks a ton Peter. I totally agree that I should just write my own since
that is exactly the type of thing django was built to do and I intend on
doing so. The reason I ask is that I tend to learn much faster by examining
good examples.

On Thu, Feb 4, 2010 at 11:09 AM, Peter Herndon  wrote:

>
> On Feb 4, 2010, at 10:02 AM, Joel Stransky wrote:
>
> > Hi all,
> > I'm brand new to Django/Python but not software development. I just to
> say hi and ask for your understanding on my newbish questions.
> > I realize Django, when used correctly makes it stupidly easy to create
> webblogs but I'm curious as to whats out there as far as django based blog
> installs go a la wordpress.
> >
> > Any input is appreciated.
> >
> Hi Joel,
>
> I'm tempted to suggest you write your own blog engine, as that seems to be
> the first thing every new-to-Django programmer does, and it will provide a
> good learning experience.  However, if you are looking for an actual really
> good, pre-built blog app, you can't really go wrong with django-mingus (
> http://github.com/montylounge/django-mingus).  There are dozens of other
> options out there (since, as written above, darn near everyone writes their
> own at some point), but django-mingus is both easy to use and provides an
> excellent example of both good software engineering and good deployment
> practices.
>
> ---Peter Herndon
>
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>


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stranskydesign.com

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Re: How to use CheckboxSelectMultiple() widget

[Bill Freeman]

I'll take you at your word that you have a list of file (names?), rather than
a queryset.

class xxx(forms.Form):
   def __init__(self, list_of_files, *args, **kwargs):
  self.fields['files'].choices = enumerate(list_of_files)
  super(xxx, self).__init__(*args, **kwargs)

   files = forms.MultipleChoiceField(widget=CheckboxSelectMultiple, choices=[])

You then put multiple submit buttons on the form so that you can choose to save
the checked files, delete the checked files, or what (you need to give
them a "name"
attribute to make them show up in the POST data).  When your view instantiates
the form, you pass the list of files.  When a posted form if valid,
form.checked_data['files']
will be a list of indexes into list of files.  You need to be sure
that you have the same
list when you get the post as you had for the get that rendered the form.

Untested, but I've done similar.  Should be close.

Bill

On Thu, Feb 4, 2010 at 1:27 AM, mojito  wrote:
> I have a list of files I'd like to render as a list of check boxes
> with multiple selection. Then from the frontend I want to add the
> ability to save and delete these files. How can I achieve this using
> CheckboxSelectMultiple() widget ?
> Thanks
>
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Re: Access apache environment variable in template

[Sonal Breed]

Ya, It did work luke, What was I thinking, accessing it like
{{ request.meta["TIER"] }}
Sorry for that and thanks again for your help.

Sonal

On Feb 4, 9:30 am, Sonal Breed  wrote:
> I mean to say {{ request.meta["TIER"] }}
>
> On Feb 4, 9:25 am, Sonal Breed  wrote:
>
> > Hi all,
> > In my default-server.conf, I set an env variable as
> > setenv TIER hi
>
> > Can anybody let me know how can I access this variable in the
> > template.
> > I tried to use a bunch of expressions like
> >  {% request.meta["TIER"] %} or
> > {% request.environ[TIER] %} but they do not return anything.
>
> > Any help will be greatly appreciated.
>
> > Thanks,
> > Sincerely,
> > Sonal.

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Re: Access apache environment variable in template

[Luke Sneeringer]

If you are using render_to_response, you will need to explicitly send request 
in the dictionary of items going to the template.

Also, variable access in Django templates is done with the {{ and }} enclosure, 
and uses all dots (.) for separators. I have never tried to directly access 
something out of a QueryDict, but I expect that {{ request.META.TIER }} would 
work.

Regards,
Luke

On February 4, 2010, at 11:25 , Sonal Breed wrote:

> Hi all,
> In my default-server.conf, I set an env variable as
> setenv TIER hi
> 
> Can anybody let me know how can I access this variable in the
> template.
> I tried to use a bunch of expressions like
> {% request.meta["TIER"] %} or
> {% request.environ[TIER] %} but they do not return anything.
> 
> Any help will be greatly appreciated.
> 
> Thanks,
> Sincerely,
> Sonal.
> 
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Re: Access apache environment variable in template

[Sonal Breed]

I mean to say {{ request.meta["TIER"] }}

On Feb 4, 9:25 am, Sonal Breed  wrote:
> Hi all,
> In my default-server.conf, I set an env variable as
> setenv TIER hi
>
> Can anybody let me know how can I access this variable in the
> template.
> I tried to use a bunch of expressions like
>  {% request.meta["TIER"] %} or
> {% request.environ[TIER] %} but they do not return anything.
>
> Any help will be greatly appreciated.
>
> Thanks,
> Sincerely,
> Sonal.

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Access apache environment variable in template

[Sonal Breed]

Hi all,
In my default-server.conf, I set an env variable as
setenv TIER hi

Can anybody let me know how can I access this variable in the
template.
I tried to use a bunch of expressions like
 {% request.meta["TIER"] %} or
{% request.environ[TIER] %} but they do not return anything.

Any help will be greatly appreciated.

Thanks,
Sincerely,
Sonal.

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Re: FieldError with get_object_or_404

[Andy McKay]

On 2010-02-04, at 7:36 AM, harryos wrote:
> In the shell I tried this
> from django.shortcuts import  get_object_or_404 as gtobj
> e1=gtobj(MyEntry,posted_time__year=2010,posted_time__month=2,posted_time__day=1)
> This is successful ,it gives this message
> MultipleObjectsReturned: get() returned more than one MyEntry -- it
> returned 4!

get(..) assumes there's one and only one object, hence the error.

> However when I tried ,
> e1=gtobj(MyEntry,posted_time__year=2010,posted_time__month=2,posted_time__day=1,posted_time__hour=10)
> 
> I get this error,
> FieldError: Join on field 'posted_time' not permitted. Did you
> misspell 'hour' for the lookup type?

There are lookups for year, month and day as documented here:

http://docs.djangoproject.com/en/dev/ref/models/querysets/#year

But *not* hour or minute.
--
  Andy McKay, @clearwind
  http://clearwind.ca/djangoski

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It looks like Django is working from a stale DB. What am I doing wrong?

[Luke Sneeringer]

Good morning, everyone!
Apologies in advance if this is the wrong place to ask this question.

First of all, the setup. I'm using MySQL and InnoDB tables.

I've encountered an unusual problem, which has reared its ugly head on
several fronts. The basic jist is that Django seems to not recognize
database changes made...I think since the beginning of the request.
It's caused some interesting issues, like getting an IntegrityError on
a get_or_create call (which one would think would not be possible).

The most succinct reproduction case I can give would be this. Assume a
model "Source" (and corresponding table in MySQL). It has an empty
table. I will start a shell, try to pull the source with the id of 1.
It will raise DoesNotExist (correctly). I will then go add one, with
an id of 1. I now expect the same request to work, but in fact it does
not.

$ ./manage.py shell
>>> from mysite.myapp.models import Source
>>> s = Source.objects.get(id = 1)
Traceback (most recent call last):
  File "", line 1, in 
  File "/usr/local/share/django/django/db/models/manager.py", line
120, in get
return self.get_query_set().get(*args, **kwargs)
  File "/usr/local/share/django/django/db/models/query.py", line 305,
in get
% self.model._meta.object_name)
DoesNotExist: Source matching query does not exist.
>>>
>>> # added a database entry here, and confirmed its primary key (id) was 1
>>>
>>> s = Source.objects.get(id = 1)
Traceback (most recent call last):
  File "", line 1, in 
  File "/usr/local/share/django/django/db/models/manager.py", line
120, in get
return self.get_query_set().get(*args, **kwargs)
  File "/usr/local/share/django/django/db/models/query.py", line 305,
in get
% self.model._meta.object_name)
DoesNotExist: Source matching query does not exist.

What am I doing wrong?

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[ANN] Morelia - a BDD framework for Python

[Phlip]

Djangoists:

Morelia /viridis/ is a Behavior Driven Development system for Python.
We use Morelia on all our private Django projects here at 
http://github.com/cuker
. (Other than that, Morelia itself does not require Django, but it
works great with django-test-extensions behind it!)

Morelia lets you write business rules in plain English:

  Scenario the customer bought too much
  When the customer bought $999 worth of swag
  Then we send them a free tee-shirt

  Scenario the customer bought too little much
  When the customer bought $800 worth of swag
  Then we don't send them a free tee-shirt

When you run your unit tests, Morelia builds a test case out of each
Scenario, and calls steps in your test suite whose doc-strings match
the step definitions, as regular expressions:

   def step_the_customer_bought_(self, more_than):
r'the customer bought \$(\d+) worth of swag'

self.customer = get_some_customer()
self.customer.total_sales = int(more_than)

def step_we_might_send_them_a_free_tee_shirt(self, might):
r'we (don't send|send) them a free tee-shirt'

qualified = might == 'send'
assert self.customer.qualifies_for_free('tee-shirt') ==
qualified

Note that you can pass variables between steps using the self handle.

Another write-up for Morelia, for those who already grok BDD, appears
here:

  http://groups.google.com/group/cukes/browse_frm/thread/40facb6998f778cb

The complete user's manual, with illustrations, is here:

  http://c2.com/cgi/wiki?MoreliaViridis

Good hunting!

--
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  http://penbird.tumblr.com/

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Django standards?

[David Parker]

Hey all, I'm working on my first real Django app.  I've been tinkering
with it since last June, but I actually get to use it now.  So my
question is about what's the Django standard for what I'm doing...

It's a Bible application, and so far, I have a url pattern:
urlpatterns = patterns('',
  (r'^(?P\w+)?/?(?P\w+)/?(?P\d+)?/?(?P\d
+)?(\-)?(?P\d+)?/$', verses),
)

which correlates to the method verses:
def verses(request, version, book, chapter, verse, verse2):

  logging.debug("version: " + version)
  logging.debug("book   : " + book)

  # for multi-word books "1 Kings", remove _ and replace with space
  book = re.sub('_', ' ', book)

  if chapter is None:
verses = Verse.objects.filter(version__iexact=version,
book__iexact=book)
  elif verse is None:
logging.debug("chapter: " + chapter)
verses = Verse.objects.filter(version__iexact=version,
book__iexact=book, chapter__iexact=chapter)
  elif verse2 is None:
logging.debug("chapter: " + chapter)
logging.debug("verse  : " + verse)
verses = Verse.objects.filter(version__iexact=version,
book__iexact=book, chapter__iexact=chapter, verse__iexact=verse)
  else:
logging.debug("chapter: " + chapter)
logging.debug("verse  : " + verse)
logging.debug("verse2 : " + verse2)

#verse2 can't come before verse1
if verse2 < verse:
  raise Http404

#filter for a range
verses = Verse.objects.filter(version__iexact=version,
book__iexact=book, chapter__iexact=chapter,
verse__in=range(int(verse),int(verse2)+1))

  if verses.count() == 0:
logging.debug("No verses found!")
raise Http404


  return list_detail.object_list(

request,

queryset = verses,

template_name = 'verse.html',

template_object_name = 'verses',
extra_context =
{'book':book,'chapter':chapter,'verse':verse,'verse2':verse2}

  )

Now, is this the standard way of doing this kind of thing?  Or should
I break the method up into different methods and have several
different url patterns?  Thanks!

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Re: Django bases blog solutions

[Peter Herndon]

On Feb 4, 2010, at 10:02 AM, Joel Stransky wrote:

> Hi all,
> I'm brand new to Django/Python but not software development. I just to say hi 
> and ask for your understanding on my newbish questions.
> I realize Django, when used correctly makes it stupidly easy to create 
> webblogs but I'm curious as to whats out there as far as django based blog 
> installs go a la wordpress.
> 
> Any input is appreciated.
> 
Hi Joel,

I'm tempted to suggest you write your own blog engine, as that seems to be the 
first thing every new-to-Django programmer does, and it will provide a good 
learning experience.  However, if you are looking for an actual really good, 
pre-built blog app, you can't really go wrong with django-mingus 
(http://github.com/montylounge/django-mingus).  There are dozens of other 
options out there (since, as written above, darn near everyone writes their own 
at some point), but django-mingus is both easy to use and provides an excellent 
example of both good software engineering and good deployment practices.  

---Peter Herndon

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FieldError with get_object_or_404

[harryos]

hi
I was trying out in django's python shell the  get_object_or_404
method on a set of entries I created in the db.I created an entry with
a DateTimeField called 'posted_time'.I used datetime.datetime.now as
default value and it created
Date:2010-02-01
Time:10:02:22
I also created many other such entries with different datetime values

In the shell I tried this
from django.shortcuts import  get_object_or_404 as gtobj
e1=gtobj(MyEntry,posted_time__year=2010,posted_time__month=2,posted_time__day=1)
This is successful ,it gives this message
MultipleObjectsReturned: get() returned more than one MyEntry -- it
returned 4!

However when I tried ,
e1=gtobj(MyEntry,posted_time__year=2010,posted_time__month=2,posted_time__day=1,posted_time__hour=10)

I get this error,
FieldError: Join on field 'posted_time' not permitted. Did you
misspell 'hour' for the lookup type?

Why is this happening?can someone help me figure this out?I tried
various values for the hour and minute ..the same error happens for
minute also.

thanks
harry

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Re: Unicode/ASCII problems

[David De La Harpe Golden]

On 04/02/10 14:46, bruno desthuilliers wrote:



On Feb 4, 9:18 am, Nohinder  wrote:

Hello,
i ran into this problem too, the solution was to specify the page coding
from the very begining:
" # -*- coding: latin-1 -*-"


This is for .py files, not templates.


well, just to note, a similar declaration can help to remove any doubt 
in templates too. I try to make sure templates have a


{# -*- coding: utf-8 -*- #}

(to match the FILE_CHARSET default)

where emacs (where the -*- coding: -*- thing comes from...) and other 
editors which expect it can pick it up (i.e. the first line, which 
appears to be okay with {%extend%} too, I guess since {#...#} is 
template syntax, not a tag like {%comment%} )


After all, a lot of template files won't have a relevant html/xml 
encoding declaration in them, as they'll be extend or include fragments.





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Re: SQL statement runs in a loop

[äL]

On 4 Feb., 11:48, Daniel Roseman  wrote:
> On Feb 4, 6:23 am, äL  wrote:
>
> > I have an SQL statement in views.py:
>
> > karatekas = Karateka.objects.extra(where = ["bsc = 1 OR skr =
> > 1"]).select_related()
>
> > This statement runs in a loop an no data will come back.
>
> > If I change the little word "OR" to "AND",
>
> > karatekas = Karateka.objects.extra(where = ["bsc = 1 AND skr =
> > 1"]).select_related()
>
> > the right data will show up.
>
> > Why does it not work with "OR"?
>
> What do you mean by 'runs in a loop'? I can't parse that sentence.
> What is the actual behaviour? Do you get an error?
The browser seems to load and load an load. But no data will come up.
No, I don't get any error.

>
> I'm not sure why you're doing this in SQL, anyway. This can be done
> directly in the ORM:
>     Karateka.objects.filter(Q(bsc=1) | Q(skr=1)).select_related()
I tried with your example. Now it works how I want it. Thanks a lot
for your help.

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Re: kss with django

[Shawn Milochik]

> 
> Does somebody know which AJAX is the best for Django - jQuery, JSON or 
> something similar (KSS not any more?).
> So I can search for instructions.
> 
> Best regards
> Ogi

Neither jQuery nor JSON are AJAX. JSON is JavaScript Object notation -- the 
object type in JavaScript. If you're doing AJAX, you will certainly be using 
JSON or XML.
jQuery is a library of JavaScript functionality that very nicely allows you to 
do the same thing in pretty much every browser type, without having to code for 
their peculiarities.

You can do AJAX very well with jQuery -- it's something it does well. There are 
a couple of working examples in this thread:
http://groups.google.com/group/django-users/browse_thread/thread/45ba4d8f0f71d8d6/ed1002002178633d

Shawn

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Re: kss with django

[Jorge Bastida]

Take a look to http://dajaxproject.com/

Hope this helps you

2010/2/4 Vranesic Ogi 

> Am Donnerstag 04 Februar 2010 15:39:21 schrieb bruno desthuilliers:
> > On Feb 4, 10:32 am, ogi  wrote:
> > > Hi
> > >
> > > I'm new in Django but rather old in Python.
> > > I followed the tutorialhttp://code.djangoproject.com/wiki/KSSInDjango
> > > to integrate KSS with Django and installed kss.django
> > > did all settings.
> > > But in views.py after
> > > commands = KSSCommands()
> > > commands.core.replace...
> > > I got attribute error 'core'
> > > Any hint will be very appreciated.
> >
> > I suspect the tutorial is either wrong or not up to date. Anyway, this
> > is a KSS problem, not a Django problem, so you may have better luck
> > searching in KSS documentation, website or whatever.
> >
> > Yeps, not very helpful, I know - sorry :-/
> >
> Bruno thanks anyway for reply.
>
> Does somebody know which AJAX is the best for Django - jQuery, JSON or
> something similar (KSS not any more?).
> So I can search for instructions.
>
> Best regards
> Ogi
>
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>


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Re: Editing a model in console: form validation fails

[pjmorse]

On Feb 3, 2:10 pm, Daniel Roseman  wrote:
> On Feb 3, 5:45 pm, pjmorse  wrote:

> > I narrowed the problem down to form validation in the view, and using
> > pdb and some debug logging commands I got the validation errors out.
> > Here's the problematic code:
> > (Pdb) pf.errors
> > {'athlete': [u'This field is required.'], 'language': [u'This field is
> > required.']}

> You don't show the code of the Athlete or AthleteProfile forms. Are
> they just standard model forms, with no excluded fields?
>
> Secondly, is the language field actually displayed on the HTML
> template for the athleteprofile form? It's significant that it's not
> in the POSTed data, which would seem to indicate that you haven't
> included the field in the template. If you've left it out for a
> reason, you should also exclude it from the form, by adding it to the
> 'exclude' tuple in the form's inner Meta class, so that it doesn't
> prevent validation.

Thanks, Daniel, good questions. The second one - that the language
wasn't actually in the field - turned out to be the key; the language
is set based on the user session inside the view (code below) but when
I followed your idea and used hidden form fields to add the athlete
and language IDs to the form, everything got assigned appropriately in
the view and validation passed.

The form code is so simple I didn't think it was relevant:

class AthleteForm(forms.ModelForm):

class Meta:
model = Athlete

class AthleteProfileForm(forms.ModelForm):

class Meta:
model = AthleteProfile

These are the associated models (I've trimmed commented code for
brevity):

class Athlete(models.Model):
def __unicode__(self):
return '%s %s' % (self.name, self.surname)

name = models.CharField(max_length=255)
surname = models.CharField(max_length=255)
country = models.ForeignKey(Country)
dob = models.DateField()
gender = models.CharField(max_length=1,choices = (('m','Male'),
('f','Female')))

user = models.ForeignKey(AdminUser,
related_name='athleter_owner_set', verbose_name = 'Creator')
modified = models.ForeignKey(AdminUser, blank = True, null = True,
related_name='athlete_modified_set', verbose_name='Modified by')

deleted = models.BooleanField(default = False)

date_created = models.DateTimeField(null = True, blank = True,
default = datetime.now)
date_modified = models.DateTimeField(null = True, blank = True,
default = datetime.now)

image = models.CharField(max_length = 255, null = True, default =
'GENERIC.jpg')


class AthleteProfile(models.Model):

def __unicode__(self):
return '%s %s' % (self.athlete.name, self.athlete.surname)

athlete = models.ForeignKey(Athlete)
language = models.ForeignKey(Language)

pbest = models.CharField("Personal
best",max_length=255,blank=True ,null = True, default = '00:00:00')
highlights = models.TextField(null = True, blank=True, default = '')
career_notes = models.TextField(blank=True ,null = True, default =
'')
personal_notes = models.TextField(blank=True ,null = True, default =
'')
additional_career_highlights = models.TextField(blank=True ,null =
True, default = '')
other_personal_bests = models.TextField(blank=True ,null = True,
default = '')
upcoming_marathons = models.TextField(blank=True ,null = True,
default = '')
wmm_highlights = models.TextField("WMM highlights",blank=True ,null =
True, default = '')
translated = models.BooleanField(default = False ,null = True, blank
= True)

It's not clear to me why the original programmer chose to normalize
the database this way, but I think their intention was to separate
translatable fields. "Language" is not displayed in the HTML template;
it's set in the view a few lines before the code I included, and based
on the user submitting the form:

def athletes_edit(request, athlete_id):
language = get_object_or_404(Language, locale =
request.session['adminlangID'])

"""
Get current athlete object
"""

athlete_obj = get_object_or_404(Athlete, pk = athlete_id)

athleteprofile, created =
AthleteProfile.objects.get_or_create(athlete = athlete_obj, language =
language)

My assumption was that when the AthleteProfileForm was created from
`athleteprofile` (which is an AthleteProfile object) that the language
value would be maintained, but apparently such is not the case.

Thanks again, Daniel, this has been a thorn in my side for several
days and now I've closed it up.

pjm

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Re: kss with django

[Vranesic Ogi]

Am Donnerstag 04 Februar 2010 15:39:21 schrieb bruno desthuilliers:
> On Feb 4, 10:32 am, ogi  wrote:
> > Hi
> >
> > I'm new in Django but rather old in Python.
> > I followed the tutorialhttp://code.djangoproject.com/wiki/KSSInDjango
> > to integrate KSS with Django and installed kss.django
> > did all settings.
> > But in views.py after
> > commands = KSSCommands()
> > commands.core.replace...
> > I got attribute error 'core'
> > Any hint will be very appreciated.
> 
> I suspect the tutorial is either wrong or not up to date. Anyway, this
> is a KSS problem, not a Django problem, so you may have better luck
> searching in KSS documentation, website or whatever.
> 
> Yeps, not very helpful, I know - sorry :-/
> 
Bruno thanks anyway for reply.

Does somebody know which AJAX is the best for Django - jQuery, JSON or 
something similar (KSS not any more?).
So I can search for instructions.

Best regards
Ogi

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Django bases blog solutions

[Joel Stransky]

Hi all,
I'm brand new to Django/Python but not software development. I just to say
hi and ask for your understanding on my newbish questions.
I realize Django, when used correctly makes it stupidly easy to create
webblogs but I'm curious as to whats out there as far as django based blog
installs go a la wordpress.

Any input is appreciated.

-- 
--Joel Stransky
stranskydesign.com

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Re: Unicode/ASCII problems

[bruno desthuilliers]

On Feb 4, 9:18 am, Nohinder  wrote:
> Hello,
> i ran into this problem too, the solution was to specify the page coding
> from the very begining:
> " # -*- coding: latin-1 -*- "

This is for .py files, not templates.

> this is my first line in a .py file where i have/deal with special chars.
> it latin-1 does not work, try utf-8, although it should work

"programming by accident", eh ?

This declaration must match the encoding _effectively_ used to save
your .py file - else it won't work correctly (even if it seems to).

Hint : if you don't want to have encoding problems, enforce the use of
utf-8 on the *whole* production chain (source files encoding _and_
declaration, html files idem, webserver, database, etc). Lesson I
learned the hard way years ago...

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Re: Problem with apache server

[Alex Robbins]

If you are in development, you can just use django dev server. "./
manage.py runserver" from your project.

If you have deployed your app, then the best way to avoid restarting
is to use mod_wsgi's reloading feature.
If you deploy in daemon mode, you can just touch the wsgi file to
trigger a reload. That is the easiest way.

If you want django dev server-like automatic reload on change, you
should look at this:
http://code.google.com/p/modwsgi/wiki/ReloadingSourceCode

Some links for deploying django using mod_wsgi.
http://docs.djangoproject.com/en/1.1/howto/deployment/modwsgi/#howto-deployment-modwsgi
http://code.google.com/p/modwsgi/wiki/IntegrationWithDjango

Hope that helps,
Alex

On Feb 3, 5:30 am, Zygmunt  wrote:
> Hi!
> When i create some changes in my page, i need restart apache server.
> How can i avoid restarting?

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Re: kss with django

[bruno desthuilliers]

On Feb 4, 10:32 am, ogi  wrote:
> Hi
>
> I'm new in Django but rather old in Python.
> I followed the tutorialhttp://code.djangoproject.com/wiki/KSSInDjango
> to integrate KSS with Django and installed kss.django
> did all settings.
> But in views.py after
> commands = KSSCommands()
> commands.core.replace...
> I got attribute error 'core'
> Any hint will be very appreciated.

I suspect the tutorial is either wrong or not up to date. Anyway, this
is a KSS problem, not a Django problem, so you may have better luck
searching in KSS documentation, website or whatever.

Yeps, not very helpful, I know - sorry :-/

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Re: Wp-super-cache clone for django

[Alessandro Ronchi]

On Sun, Jan 3, 2010 at 2:22 PM, Alessandro Ronchi <
alessandro.ron...@soasi.com> wrote:

> In wordpress there is a plugin that caches in a file (gzipped) a page
> and returns it instead of recalculate all from database, directly from
> apache.
> A garbage collector removes cached pages older than cache life.
>
> Is there anything similar in django, that returns a page without using
> the django more expensive cache? I'm using memcached, but the speed of
> a wordpress wp-super-cache page is higher that a django memcached one.
>


This could be a solution:
http://superjared.com/projects/static-generator/

Do you know if it's possible to cache only requests without sessions? (i.e.
to let satchmo users to get cached files until they put something into their
chart).

-- 
Alessandro Ronchi

http://www.soasi.com
SOASI - Sviluppo Software e Sistemi Open Source

http://hobbygiochi.com
Hobby & Giochi, l'e-commerce del divertimento

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Re: Any way to make get_or_create() to create an object without saving it to database?

[Tom Evans]

On Wed, Feb 3, 2010 at 9:44 PM,   wrote:
> I have a similar problem. In my database is a result class.
> You need an exam, a user and the points to create a result and points are
> without null-values.
> Now I want to use Result.objects.get_or_create(exam=e,user=u) to get the
> result if there already is one or create a new one.
> This won't work because get_or_create tries to save the object to db and
> fails.
> I want to get_or_create a result and change the points without manual
> validating if it already exists.
>
> The postcondition have to be "result object with given exam, user and points
> saved in database, only one result per user/exam combination"
> r, c = Exam_result.objects.get_or_create( user = u, exam = e )
> r.points = p
> r.save()
>
> Result(exam = e, user = u) generates a new object i think, if I save this I
> have two results for one person at one exam, that's not what I want.
>
> Sorry if I'm completly wrong with this, would be nice if somebody is able to
> enlighten me.
>
> -- Florian
>
>

Er,
r, c = Exam_result.objects.get_or_create(user=u, exam=e,
defaults={'points': p, })
if not c:
  r.points = p
  r.save()

See http://www.djangoproject.com/documentation/models/get_or_create/

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Re: Using variable in place of field name in Django query .filter()

[davidchambers]

D'oh! I must have clicked "reply to author" (I'm so used to hitting
"reply to all" in Gmail).

I discovered a post which gives an example of Itay's suggestion in
action: 
http://yuji.wordpress.com/2009/09/12/django-python-dynamically-create-queries-from-a-string-and-the-or-operator/.

I also found this section of Python's documentation useful:
http://docs.python.org/tutorial/controlflow.html#keyword-arguments.

Thanks for your replies. Sorry for being slow on the uptake. I am
relatively new to Python and didn't realize that it's possible to pass
a dictionary to a function in place of arguments. Cool!


On Feb 5, 2:25 am, Itay Donenhirsch  wrote:
> i don't see any way for a python function to _require_ a parameter to
> be hardcoded.
> i would be VERY surprised otherwise. this must work...
> i agree about python being designed awesomely though! :)
>
> On Thu, Feb 4, 2010 at 3:13 PM, davidchambers
>
>  wrote:
> > Thanks for the suggestion. Unless I'm mistaken, though, using a
> > dictionary does not solve the problem which is that .filter() seems to
> > require field names to be hard-coded. Django is incredibly well
> > designed, though, and continually surprises me, so I'm almost
> > _expecting_ to be pleasantly surprised here. :)
>
> > On Feb 5, 12:23 am, Itay Donenhirsch  wrote:
> >> i guess you can do it with a dictionary, i'll give you a general example:
>
> >> def foo(x,y,z):
> >>   print "x=" + x
> >>   print "y=" + y
> >>   print "z=" + z
>
> >> d = { 'x' : 1, 'y': 2, 'z' : 3 }
> >> foo( **d ) # same as foo( x=1, y=2, z=3 )
>
> >> it's a python thing, not django necessarily
>
> >> On Thu, Feb 4, 2010 at 1:20 PM, davidchambers
>
> >>  wrote:
> >> > I'm familiar with hard-coding filters in the standard fashion, e.g.
> >> > posts = Post.objects.filter(title__contains='django').
>
> >> > I'm interested in finding out whether it's possible to replace
> >> > title__contains in the above example with a variable. Why do I want to
> >> > do this? Well, here's some pseudocode:
>
> >> > posts = Post.objects.all()
> >> > if title checkbox is checked:
> >> >        posts = posts.filter(title__contains='django')
> >> > if subheading checkbox is checked:
> >> >        posts = posts.filter(subheading__contains='django')
> >> > if body checkbox is checked:
> >> >        posts = posts.filter(body__contains='django')
>
> >> > I would love to be able to do this with a loop:
>
> >> > posts = Post.objects.all()
> >> > for field in ['title', 'subheading', 'body']:
> >> >        posts = posts.filter(field__contains='django')
>
> >> > Clearly the above will not work, but is there a way to achieve the
> >> > result I'm after?
>
> >> > --
> >> > 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 
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Re: Using variable in place of field name in Django query .filter()

[Itay Donenhirsch]

i don't see any way for a python function to _require_ a parameter to
be hardcoded.
i would be VERY surprised otherwise. this must work...
i agree about python being designed awesomely though! :)

On Thu, Feb 4, 2010 at 3:13 PM, davidchambers
 wrote:
> Thanks for the suggestion. Unless I'm mistaken, though, using a
> dictionary does not solve the problem which is that .filter() seems to
> require field names to be hard-coded. Django is incredibly well
> designed, though, and continually surprises me, so I'm almost
> _expecting_ to be pleasantly surprised here. :)
>
>
> On Feb 5, 12:23 am, Itay Donenhirsch  wrote:
>> i guess you can do it with a dictionary, i'll give you a general example:
>>
>> def foo(x,y,z):
>>   print "x=" + x
>>   print "y=" + y
>>   print "z=" + z
>>
>> d = { 'x' : 1, 'y': 2, 'z' : 3 }
>> foo( **d ) # same as foo( x=1, y=2, z=3 )
>>
>> it's a python thing, not django necessarily
>>
>> On Thu, Feb 4, 2010 at 1:20 PM, davidchambers
>>
>>  wrote:
>> > I'm familiar with hard-coding filters in the standard fashion, e.g.
>> > posts = Post.objects.filter(title__contains='django').
>>
>> > I'm interested in finding out whether it's possible to replace
>> > title__contains in the above example with a variable. Why do I want to
>> > do this? Well, here's some pseudocode:
>>
>> > posts = Post.objects.all()
>> > if title checkbox is checked:
>> >        posts = posts.filter(title__contains='django')
>> > if subheading checkbox is checked:
>> >        posts = posts.filter(subheading__contains='django')
>> > if body checkbox is checked:
>> >        posts = posts.filter(body__contains='django')
>>
>> > I would love to be able to do this with a loop:
>>
>> > posts = Post.objects.all()
>> > for field in ['title', 'subheading', 'body']:
>> >        posts = posts.filter(field__contains='django')
>>
>> > Clearly the above will not work, but is there a way to achieve the
>> > result I'm after?
>>
>> > --
>> > 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 
>> > athttp://groups.google.com/group/django-users?hl=en.
>
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>

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Re: Using variable in place of field name in Django query .filter()

[Karen Tracey]

On Thu, Feb 4, 2010 at 8:13 AM, davidchambers
wrote:

> Thanks for the suggestion. Unless I'm mistaken, though, using a
> dictionary does not solve the problem which is that .filter() seems to
> require field names to be hard-coded. Django is incredibly well
> designed, though, and continually surprises me, so I'm almost
> _expecting_ to be pleasantly surprised here.


Why do you say ".filter() seems to require  field names to be hard-coded"?
It does not. Try the dictionary suggestion.

Karen

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Re: Using variable in place of field name in Django query .filter()

[davidchambers]

Thanks for the suggestion. Unless I'm mistaken, though, using a
dictionary does not solve the problem which is that .filter() seems to
require field names to be hard-coded. Django is incredibly well
designed, though, and continually surprises me, so I'm almost
_expecting_ to be pleasantly surprised here. :)


On Feb 5, 12:23 am, Itay Donenhirsch  wrote:
> i guess you can do it with a dictionary, i'll give you a general example:
>
> def foo(x,y,z):
>   print "x=" + x
>   print "y=" + y
>   print "z=" + z
>
> d = { 'x' : 1, 'y': 2, 'z' : 3 }
> foo( **d ) # same as foo( x=1, y=2, z=3 )
>
> it's a python thing, not django necessarily
>
> On Thu, Feb 4, 2010 at 1:20 PM, davidchambers
>
>  wrote:
> > I'm familiar with hard-coding filters in the standard fashion, e.g.
> > posts = Post.objects.filter(title__contains='django').
>
> > I'm interested in finding out whether it's possible to replace
> > title__contains in the above example with a variable. Why do I want to
> > do this? Well, here's some pseudocode:
>
> > posts = Post.objects.all()
> > if title checkbox is checked:
> >        posts = posts.filter(title__contains='django')
> > if subheading checkbox is checked:
> >        posts = posts.filter(subheading__contains='django')
> > if body checkbox is checked:
> >        posts = posts.filter(body__contains='django')
>
> > I would love to be able to do this with a loop:
>
> > posts = Post.objects.all()
> > for field in ['title', 'subheading', 'body']:
> >        posts = posts.filter(field__contains='django')
>
> > Clearly the above will not work, but is there a way to achieve the
> > result I'm after?
>
> > --
> > 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 
> > athttp://groups.google.com/group/django-users?hl=en.

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Re: django and ldap

[David De La Harpe Golden]

On 04/02/10 08:33, andreas schmid wrote:

@brad: can you show me some sample code for this?

@david: i tried different configuration options but with no luck, i can
bind and search manually over python-ldap so i can definitely connect.



There are logging calls liberally sprinkled through the source of 
django-auth-ldap.  Django doesn't really give you any help with logs 
out-of-box (I suppose the argument is python already has its logging 
package (quite the baroque one) that you can setup how you want), they 
may be going nowhere?


For debugging rather than production logging needs, there are packages 
that can inject log messages encountered during answering requests into 
the html response [1] - extremely useful.


I'm still stuck for now with our homegrown ldap auth we grew before 
django-auth-ldap appeared, but I've been keeping an eye on the 
django-auth-ldap package as a possible replacement.  I can confirm it 
worked completely straightforwardly on python 2.5 and django 1.1.1 
(including log messages when auth failed etc.) - at least trunk when 
checked out from the repo rather than easy_installed or whatever - 
here's the entirety of the relevant settings.py config I used for my 
last test, as per the documentation:


AUTHENTICATION_BACKENDS = (
'django_auth_ldap.backend.LDAPBackend',
...
)

# I have a slapd setup for testing on my dev box.
AUTH_LDAP_SERVER_URI = "ldap://localhost/;

import ldap
from django_auth_ldap.config import LDAPSearch

# If you can't anonymously find users, you might need values here.
AUTH_LDAP_BIND_DN = ""
AUTH_LDAP_BIND_PASSWORD = ""
# obviously I used our actual path here
AUTH_LDAP_USER_SEARCH = LDAPSearch("ou=users,dc=example,dc=com",
   ldap.SCOPE_SUBTREE, "(uid=%(user)s)")



[1]
http://code.google.com/p/django-logging/wiki/Overview
- apparently no longer maintained (still works though):
http://robhudson.github.com/django-debug-toolbar/
has a superset of its functionality though I haven't got around to 
switching to it yet.



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Re: You're seeing this error because you have DEBUG = True in your Django settings file.

[Emily Rodgers]

On Feb 4, 3:54 am, punwaicheung  wrote:
> Page not found (404)
> Request Method: GET
> Request URL:http://www.cadal.zju.edu.cn/djvu_ulib/16003525/0001.djvu
>
> Using the URLconf defined in cadal.urls, Django tried these URL
> patterns, in this order:
>
> ^personal/?$
> ^personal/Eng/?$
> ^personal/addrule/book/?
> ^personal/delrule/(\d+)/?$
> ^personal/addfld/([^/]+)/?$
> ^personal/renrule/(\d+)/([^/]+)/?$
> ^personal/hotbooks/?$
> ^personal/hotbooks/Eng/?$
> ^personal/quicksearch/(\w+)/?$
> ^personal/mytags/?$
> ^personal/mytags/Eng/?$
> ^personal/mybookmarks/?$
> ^personal/mybookmarks/Eng/?$
> ^personal/mybookmarks/(?P\d{8})/?$
> ^personal/info/?$
> ^personal/password/?$
> ^personal/subtree/?
> ^personal/quickadd/?
> ^fulltext/search/?$
> ^fulltext/text/(?P\d+)/(?P\d+)/?$
> ^book/(?P\d+)/$
> ^book/(?P\d+)/Eng/$
> ^book/(?P\d+)/(?P\d+)/$
> ^book/(?P\d+)/(?P\d+)/Eng/$
> ^book/(?P\d+)/(?P\d+)/list/$
> ^book/(?P\d+)/(?P\d+)/list/Eng/$
> ^book/(?P\d+)/catalog/$
> ^book/(?P\d+)/sidebar/$
> ^book/(?P\d+)/sidebar/Eng/$
> ^book/(?P\d+)/navigator/$
> ^book/(?P\d+)/navigator/Eng/$
> ^book/(?P\d+)/submitComment/$
> ^book/(?P\d+)/delComment/$
> ^book/(?P\d+)/submitMeta/$
> ^book/(?P\d+)/allComments/$
> ^book/(?P\d+)/allComments/Eng/$
> ^book/(?P\d+)/addBookmark/$
> ^book/(?P\d+)/deleteBookmark/$
> ^book/(?P\d+)/tags/$
> ^book/(?P\d+)/tags/Eng/$
> ^book/(?P\d+)/delTag/(?P[^/]+)/$
> ^book/tags/(?P[^/]+)/$
> ^book/tags/(?P[^/]+)/Eng/$
> ^book/tags/(?P[^/]+)/(?P\d+)/$
> ^book/tags/(?P[^/]+)/(?P\d+)/Eng/$
> ^book/(?P\d+)/submitTag/$
> ^book/(?P\d+)/recommendation/$
> ^book/(?P\d+)/recommendation/Eng/$
> ^class/$
> ^class/(?P[^/]+)/$
> ^class/(?P[^/]+)/(?P\d+)/$
> ^class/(?P[^/]+)/cards/(?P\d+)/$
> ^account/login/(?P\d+)/(?P\d+)/$
> ^account/login/Eng/(?P\d+)/(?P\d+)/$
> ^account/login/$
> ^account/login/Eng/$
> ^account/logout/$
> ^account/logout/Eng/$
> ^account/register/Eng/$
> ^account/register/$
> ^auth/(?P\d{8})/?$
> ^auth/user/?$
> ^admin/?$
> ^admin/login/?$
> ^admin/logout/?$
> ^admin/group_auth/?$
> ^admin/show_ug/?$
> ^admin/add_ug/?$
> ^admin/del_ug/?$
> ^admin/show_rg/?$
> ^admin/show_rg/(?P\w+)/?$
> ^admin/show_rg/(?P\w+)/(?P\d+)/?$
> ^admin/add_rg/?$
> ^admin/del_rg/?$
> ^admin/modify_rg_view/?$
> ^admin/modify_rg/?$
> ^admin/show_books/(?P\d+)/?$
> ^admin/show_books/(?P\d+)/(?P\d+)/?$
> ^admin/add_book_rg_view/?$
> ^admin/add_book_rg/?$
> ^admin/del_book_rg/(?P\d+)/?$
> ^admin/addtogroup/?$
> ^admin/show_ACL/?$
> ^admin/show_users/(?P\d+)/?$
> ^admin/show_IPs/(?P\d+)/?$
> ^admin/add_group_ip/?$
> ^admin/del_group_ip/?$
> ^admin/add_user2group/?$
> ^admin/del_group_user/?$
> ^admin/search_user/?$
> ^admin/show_scancenter/?$
> ^djvu/(?P\d+)/(?P\d{8})(?P\w{7}).djvu/?$
> ^djvu/get_mask/(?P\d+)/(?P\d{8})/?$
> ^djvu/(?P\d+)/(?P\d+).tif/?$
> ^cover/(?P\d{8})
> ^tag/(?P\d{8})/?$
> ^captcha/image/?$
> ^captcha/?$
> ^captcha/en/?$
> ^captcha/en/image/?$
> ^meta/page/(\d{8})/?$
> ^html/(?P\d+)/(?P\d+).htm/?$
> ^html/(?P\d+)/(?P[\-\d]+).gif/?$
> ^html/(?P\d+)/(?P[\-\d]+).jpg/?$
> ^flexSupport/(?P\d+)/(?P[\-\d]+).jpg/?$
> ^ulib/(?P\d+)/?$
> ^Reader\.action
> ^ReaderEng\.action
> ^personal/imagesearch/(?P[^/]*)/(?P\d+)/?
> ^personal/callisearch/(?P[^/]*)/(?P\d+)/?
> ^catalogsearch/?$
> ^catalogsearch/detail/(\d{8})/?
> ^personal/recsysdemo/?$
> The current URL, /djvu_ulib/16003525/0001.djvu, didn't match any
> of these.
>
> You're seeing this error because you have DEBUG = True in your Django
> settings file. Change that to False, and Django will display a
> standard 404 page.

To actually help you though, /djvu_ulib/16003525/0001.djvu isn't
being matched because there isn't a regex for it in the list!

There are two similar regexes in your list:

> ^ulib/(?P\d+)/?$
> ^djvu/(?P\d+)/(?P\d{8})(?P\w{7}).djvu/?$

Presumably you meant the second, but it wouldn't match because it has
8 chars before .djvu not 7, and the url has djvu/ not djvu_ulib/.
Also, I don't think you need to put "/?" at the end of the url even if
you may send it GET data.

It looks like you need to either change your url or the regex for it.

There is also a lot of inconsistency in your naming conventions for
the groups in the regex (sometimes page_id sometimes pageId). It is
usually best to decide to use one and stick to it so you don't have to
keep going back to check which it should be.

HTH,
Emily

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Re: Using variable in place of field name in Django query .filter()

[Itay Donenhirsch]

i guess you can do it with a dictionary, i'll give you a general example:

def foo(x,y,z):
  print "x=" + x
  print "y=" + y
  print "z=" + z

d = { 'x' : 1, 'y': 2, 'z' : 3 }
foo( **d ) # same as foo( x=1, y=2, z=3 )

it's a python thing, not django necessarily


On Thu, Feb 4, 2010 at 1:20 PM, davidchambers
 wrote:
> I'm familiar with hard-coding filters in the standard fashion, e.g.
> posts = Post.objects.filter(title__contains='django').
>
> I'm interested in finding out whether it's possible to replace
> title__contains in the above example with a variable. Why do I want to
> do this? Well, here's some pseudocode:
>
> posts = Post.objects.all()
> if title checkbox is checked:
>        posts = posts.filter(title__contains='django')
> if subheading checkbox is checked:
>        posts = posts.filter(subheading__contains='django')
> if body checkbox is checked:
>        posts = posts.filter(body__contains='django')
>
> I would love to be able to do this with a loop:
>
> posts = Post.objects.all()
> for field in ['title', 'subheading', 'body']:
>        posts = posts.filter(field__contains='django')
>
> Clearly the above will not work, but is there a way to achieve the
> result I'm after?
>
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Using variable in place of field name in Django query .filter()

[davidchambers]

I'm familiar with hard-coding filters in the standard fashion, e.g.
posts = Post.objects.filter(title__contains='django').

I'm interested in finding out whether it's possible to replace
title__contains in the above example with a variable. Why do I want to
do this? Well, here's some pseudocode:

posts = Post.objects.all()
if title checkbox is checked:
posts = posts.filter(title__contains='django')
if subheading checkbox is checked:
posts = posts.filter(subheading__contains='django')
if body checkbox is checked:
posts = posts.filter(body__contains='django')

I would love to be able to do this with a loop:

posts = Post.objects.all()
for field in ['title', 'subheading', 'body']:
posts = posts.filter(field__contains='django')

Clearly the above will not work, but is there a way to achieve the
result I'm after?

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kss with django

[ogi]

Hi

I'm new in Django but rather old in Python.
I followed the tutorial
http://code.djangoproject.com/wiki/KSSInDjango
to integrate KSS with Django and installed kss.django
did all settings.
But in views.py after
commands = KSSCommands()
commands.core.replace...
I got attribute error 'core'
Any hint will be very appreciated.

Thanks in advance
ogi

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Re: SQL statement runs in a loop

[Daniel Roseman]

On Feb 4, 6:23 am, äL  wrote:
> I have an SQL statement in views.py:
>
> karatekas = Karateka.objects.extra(where = ["bsc = 1 OR skr =
> 1"]).select_related()
>
> This statement runs in a loop an no data will come back.
>
> If I change the little word "OR" to "AND",
>
> karatekas = Karateka.objects.extra(where = ["bsc = 1 AND skr =
> 1"]).select_related()
>
> the right data will show up.
>
> Why does it not work with "OR"?

What do you mean by 'runs in a loop'? I can't parse that sentence.
What is the actual behaviour? Do you get an error?

I'm not sure why you're doing this in SQL, anyway. This can be done
directly in the ORM:
Karateka.objects.filter(Q(bsc=1) | Q(skr=1)).select_related()

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Re: django-app user clashes with python-module user

[Mike Ramirez]

On Thursday 04 February 2010 01:17:46 patrickk wrote:
> our hosting-provide told me that I should rename my django-app "user"
> to something else, because there´s a python-module "user" and with
> using user.urls (within our url configuration), we do get an error.
> my question is, if this is the correct way to solve this problem. so
> far, I´ve never noticed that there are restrictions to django app-
> names (and I guess there aren´t).
> we didn´t have this problem with our previous hosting-provider and
> before I´m going to rename my app (for several websites), I´d like to
> know if the problem is caused by the "wrong" app-name or if it´s a
> server setup problem.
> 
> regards,
> patrick
> 

It's a "wrong" app-name, apps can't conflict with existing python modules and 
follow the rules of python module naming conventions, because just like a 
project a django app is really a python module, just with a different name.

FYI:

Help on module user:

NAME
user - Hook to allow user-specified customization code to run.

FILE
/usr/lib/python2.6/user.py

MODULE DOCS
http://docs.python.org/library/user

DESCRIPTION
As a policy, Python doesn't run user-specified code on startup of
Python programs (interactive sessions execute the script specified in
the PYTHONSTARTUP environment variable if it exists).

However, some programs or sites may find it convenient to allow users
to have a standard customization file, which gets run when a program
requests it.  This module implements such a mechanism. 

Mike

-- 
Don't be concerned, it will not harm you,
It's only me pursuing something I'm not sure of,
Across my dreams, with neptive wonder,
I chase the bright elusive butterfly of love.


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Description: This is a digitally signed message part.

django-app user clashes with python-module user

[patrickk]

our hosting-provide told me that I should rename my django-app "user"
to something else, because there´s a python-module "user" and with
using user.urls (within our url configuration), we do get an error.
my question is, if this is the correct way to solve this problem. so
far, I´ve never noticed that there are restrictions to django app-
names (and I guess there aren´t).
we didn´t have this problem with our previous hosting-provider and
before I´m going to rename my app (for several websites), I´d like to
know if the problem is caused by the "wrong" app-name or if it´s a
server setup problem.

regards,
patrick

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Re: django and ldap

[andreas schmid]

@brad: can you show me some sample code for this?

@david: i tried different configuration options but with no luck, i can
bind and search manually over python-ldap so i can definitely connect.

ive seen that the requirements for django-auth-ldap are python2.3 and
django1.0 so maybe thats one of the problems.
is someone who is using a higher pyhton version and maybe django1.1 and
have it working?
any advise would be appreciated.



brad wrote:
>> i need to authenticate users through ldap but i need also to store their
>> preferences in the database, i cant really understand if
>> 
>
>   
>> what is the best way to go?
>> 
>
> One thing you might consider doing is just write a custom backend:
> (http://docs.djangoproject.com/en/1.1/ref/authbackends/#ref-
> authentication-backends).
>
> I have a project where user's authenticate agains Active Directory.
> If the authentication is successful, the backend checks to see if an
> corresponding User (from django.contrib.auth) exists.  If not, it
> pulls the their full name, username, and email from Active Directory
> and creates the User object.
>
> The pitfall to this approach is that if their info changes in AD, the
> corresponding User data is out-of-sync.
>
> This approach works well for me, but YMMV.
>
>   

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Re: Unicode/ASCII problems

[Nohinder]

Hello,
i ran into this problem too, the solution was to specify the page coding
from the very begining:
" # -*- coding: latin-1 -*- "
this is my first line in a .py file where i have/deal with special chars.
it latin-1 does not work, try utf-8, although it should work
Good Luck


Karen Tracey-2 wrote:
> 
> On Wed, Feb 3, 2010 at 3:52 PM, zenWeasel  wrote:
> 
>> I am new to Django development, and have not been able to find this in
>> the documentation.
>>
>> In my templates, if I use any characters that are Unicode and not
>> straight ASCII e.g. é or ˝, the template fails. Is this normal
>> behavior? Is there an easy way to expand the templates to handle the
>> Unicode set or convert them to entities?
>>
> 
> No, it's not normal behavior. Please read:
> 
> http://docs.djangoproject.com/en/dev/ref/unicode/
> 
> If you still have problems after reading that, likely someone on this list
> will be able to help work out what is wrong.  However you will get much
> better help if you are a bit more specific about what goes wrong than "the
> template fails."
> 
> Karen
> 
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> 
> 


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