Re: new field in models

2013-07-23 Thread Serdar Dalgic 
On Mon, Jul 22, 2013 at 10:53 AM, Harjot Mann  wrote:
> In django when we add a new field in existing class, we need to drop
> the table and then run the syncdb again. Is there any alternative for
> it so that we can add the field without dropping the table??
>

You can also run sqldiff django command if you have django_extensions
installed in your django app.

See http://pythonhosted.org/django-extensions/sqldiff.html for
details. It gives you the difference between your model and the
database structure. Then, you can apply this difference to your db.


-- 
- Serdar Dalgıç 
FLOSS Developer, Life & Nature Hacker
twitter:
https://twitter.com/serdaroncode
https://twitter.com/serdarintowild

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Re: Search from database

2013-07-23 Thread Kamal Kaur 
On Wed, Jul 24, 2013 at 5:15 AM, Amirouche Boubekki
 wrote:
> Apache solr or ElasticSearch: yes
> Haystack: maybe
> Regex: no


Thanks.
Studying ElasticSearch currently.


-- 
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Re: Search from database

2013-07-23 Thread Amirouche Boubekki 
Apache solr or ElasticSearch: yes
Haystack: maybe
Regex: no


2013/7/21 Kamal Kaur 

> We can search from database using phonetic codes or queries. I want an
> advanced search module in my project. That can suggest similar
> spellings from database, if user enters something wrong, like if
> something is misspelled, it must tell that you might have entered
> something wrong, similar results are shown. And more options for user
> to search accordingly. Can something be done using regex? or I need to
> go for Haystack/Apache solr?
>
>
> --
> Kamaljeet Kaur
>
> Blog:http://kamalkaur188.wordpress.com/
>
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Problem with chaining filters

2013-07-23 Thread Pepsodent Cola 
*1.*
I wrote this to make python shell only list Words that have no translation.

>>> Word.objects.filter(translation='')
[, , ]



*2.*
How can I use the above filter result and chain it,
so that I can make a new list that displays the field *"articulate"*,
from the other table "Pronunciation"?


01 class Word(models.Model):
02word = models.CharField(max_length=200)
03translation = models.CharField(max_length=120, blank=True, null=True)
04def __unicode__(self):
05return self.word
06  
07 class Pronunciation(models.Model):
08word = models.ForeignKey(Word)
09articulate = models.CharField(max_length=200)
10def __unicode__(self):
11return self.articulate


 

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Re: python manage.py runserver error

2013-07-23 Thread Jay Lozier 
virtualenv works, this for the link.

On Sunday, July 21, 2013 10:09:59 PM UTC-4, Jay Lozier wrote:
>
> I get the following error when run python manage.py runserver:
>
> OS openSUSE 12.3
> django 1.7
>
>
> boopers@linux-nss6:~/myfirstsite> python manage.py runserver
> Traceback (most recent call last):
> File "manage.py", line 10, in 
> execute_from_command_line(sys.argv)
> File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
> 397, in execute_from_command_line
> utility.execute()
> File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
> 390, in execute
> self.fetch_command(subcommand).run_from_argv(self.argv)
> File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
> 261, in fetch_command
> app_name = get_commands()[subcommand]
> File "/home/boopers/django-trunk/django/core/management/__init__.py", line 
> 107, in get_commands
> apps = settings.INSTALLED_APPS
> File "/home/boopers/django-trunk/django/conf/__init__.py", line 54, in 
> __getattr__
> self._setup(name)
> File "/home/boopers/django-trunk/django/conf/__init__.py", line 50, in 
> _setup
> self._configure_logging()
> File "/home/boopers/django-trunk/django/conf/__init__.py", line 68, in 
> _configure_logging
> from django.utils.log import DEFAULT_LOGGING
> File "/home/boopers/django-trunk/django/utils/log.py", line 7, in 
> from django.views.debug import ExceptionReporter, 
> get_exception_reporter_filter
> File "/home/boopers/django-trunk/django/views/debug.py", line 10, in 
> 
> from django.http import (HttpResponse, HttpResponseServerError,
> File "/home/boopers/django-trunk/django/http/__init__.py", line 4, in 
> 
> from django.http.response import (HttpResponse, StreamingHttpResponse,
> File "/home/boopers/django-trunk/django/http/response.py", line 16, in 
> 
> from django.utils import six, timezone
> File "/home/boopers/django-trunk/django/utils/timezone.py", line 11, in 
> 
> import pytz
> File "/usr/lib/python2.7/site-packages/pytz/__init__.py", line 35, in 
> 
> from pkg_resources import resource_stream
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 3027, in 
> add_activation_listener(lambda dist: dist.activate())
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 741, in subscribe
> callback(dist)
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 3027, in 
> add_activation_listener(lambda dist: dist.activate())
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 2514, in activate
> list(map(declare_namespace, self._get_metadata('namespace_packages.txt')))
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 2094, in declare_namespace
> _handle_ns(packageName, path_item)
> File 
> "/usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg/pkg_resources.py",
>  
> line 2059, in _handle_ns
> raise TypeError("Not a package:", packageName)
> TypeError: ('Not a package:', 'cgi')
>
>
> The sys paths are
>
> /usr/lib/python2.7/site-packages/pymongo-2.5.1-py2.7-linux-x86_64.egg
> /usr/lib/python2.7/site-packages/bottle-0.11.6-py2.7.egg
> /usr/lib/python2.7/site-packages/translationstring-1.1-py2.7.egg
> /usr/lib/python2.7/site-packages/venusian-1.0a8-py2.7.egg
> /usr/lib/python2.7/site-packages/zope.deprecation-4.0.2-py2.7.egg
> /usr/lib/python2.7/site-packages/setuptools-0.9.6-py2.7.egg
> /home/boopers/django-trunk
> /usr/lib/python27.zip
> /usr/lib64/python2.7
> /usr/lib64/python2.7/plat-linux2
> /usr/lib64/python2.7/lib-tk
> /usr/lib64/python2.7/lib-old
> /usr/lib64/python2.7/lib-dynload
> /usr/lib64/python2.7/site-packages
> /usr/lib64/python2.7/site-packages/FontTools
> /usr/lib64/python2.7/site-packages/PIL
> /usr/local/lib64/python2.7/site-packages
> /usr/local/lib/python2.7/site-packages
> /usr/lib64/python2.7/site-packages/gst-0.10
> /usr/lib64/python2.7/site-packages/gtk-2.0
> /usr/lib64/python2.7/site-packages/input-pad-1.0
> /usr/lib/python2.7/site-packages
> /usr/lib64/python2.7/site-packages/wx-2.9.4-gtk2
>

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Re: django-admin.py startproject mysite error

2013-07-23 Thread Jay Lozier 
virtualenv seems to work well and I can get django tamed.

On Saturday, July 20, 2013 5:55:21 PM UTC-4, Jay Lozier wrote:
>
> Using openSUSE 12.3
> python 2.7.3
> django 1.5.1 installed manually and verified
>
> When I enter "django-admin.py startproject mysite" at the command prompt I 
> get the following traceback:
>
> Traceback (most recent call last):
> File "/usr/bin/django-admin.py", line 5, in 
> management.execute_from_command_line()
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 453, in execute_from_command_line
> utility.execute()
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 392, in execute
> self.fetch_command(subcommand).run_from_argv(self.argv)
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 272, in fetch_command
> klass = load_command_class(app_name, subcommand)
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 
> 77, in load_command_class
> module = import_module('%s.management.commands.%s' % (app_name, name))
> File "/usr/lib/python2.7/site-packages/django/utils/importlib.py", line 
> 35, in import_module
> __import__(name)
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/commands/startproject.py",
>  
> line 2, in 
> from django.core.management.templates import TemplateCommand
> File 
> "/usr/lib/python2.7/site-packages/django/core/management/templates.py", 
> line 20, in 
> from django.template import Template, Context
> File "/usr/lib/python2.7/site-packages/django/template/__init__.py", line 
> 53, in 
> from django.template.base import (ALLOWED_VARIABLE_CHARS, BLOCK_TAG_END,
> File "/usr/lib/python2.7/site-packages/django/template/base.py", line 18, 
> in 
> from django.utils.formats import localize
> File "/usr/lib/python2.7/site-packages/django/utils/formats.py", line 5, 
> in 
> from django.utils import dateformat, numberformat, datetime_safe
> File "/usr/lib/python2.7/site-packages/django/utils/dateformat.py", line 
> 25, in 
> from django.utils.timezone import is_aware, is_naive
> File "/usr/lib/python2.7/site-packages/django/utils/timezone.py", line 11, 
> in 
> import pytz
> File "/usr/lib/python2.7/site-packages/pytz/__init__.py", line 35, in 
> 
> from pkg_resources import resource_stream
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2978, in 
> 
> add_activation_listener(lambda dist: dist.activate())
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 709, in 
> subscribe
> callback(dist)
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2978, in 
> 
> add_activation_listener(lambda dist: dist.activate())
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2465, in 
> activate
> map(declare_namespace, self._get_metadata('namespace_packages.txt'))
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2045, in 
> declare_namespace
> _handle_ns(packageName, path_item)
> File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2010, in 
> _handle_ns
> raise TypeError("Not a package:", packageName)
> TypeError: ('Not a package:', 'cgi')
>
> How do I fix this?
>

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Re: How to force modelForm.is_valid() to use a specific database?

2013-07-23 Thread Fred Stluka 

Fellipe,

See:
https://docs.djangoproject.com/en/dev/topics/db/multi-db/

There are a number of ways for force use of a specific database.
You can force it per query, per table, or by any other criteria you
like.  You may need to set up a simple "database router".

--Fred

Fred Stluka -- mailto:f...@bristle.com -- http://bristle.com/~fred/
Bristle Software, Inc -- http://bristle.com -- Glad to be of service!
Open Source: Without walls and fences, we need no Windows or Gates.


On 7/23/13 2:52 PM, Fellipe Henrique wrote:
The problem is: when usng modelForm, it try to validate the unique key 
in the database, and this validation use a default database.. if I 
remove primary_key=True in my model, work fine, but I need to set the 
pk in my model, because when I try to get using: obj.get(xx)  show me 
error...



I try every think.. and I start to think is not possible multi-db in 
"runtime" in django.. :(


T.·.F.·.A.·. S+F
*Fellipe Henrique P. Soares*

/Blog: http://fhbash.wordpress.com//
/GitHub: https://github.com/fellipeh/
/Twitter: @fh_bash/


2013/7/23 Brian Millham >

I've done that with this code:

if form.is_valid():
  f = form.save(commit = False)
  f.save(using='yourdatabase')


Works fine for me.


On Tuesday, July 23, 2013 1:21:29 PM UTC-4, Fellipe Henrique wrote:

I have many database setted in my setting.py   in my
formModel, when I try to validate the form, show me error:


http://stackoverflow.com/questions/17797419/modelforms-and-multiple-datasbase-error-in-form-is-valid

The problem is.. is_valid is going to "default" database...
how can I force to got to another database?

Thanks.

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Re: Aggregating annotations

2013-07-23 Thread Debanshu Kundu 
This bug has been solved here: https://code.djangoproject.com/ticket/20782

On Friday, July 19, 2013 11:49:52 AM UTC+5:30, Debanshu Kundu wrote:
>
> If I have a model *Book* defined as:
>
> class Book(models.Model):
>name = models.CharField(max_length=300)
>pages = models.IntegerField()
>price = models.DecimalField(max_digits=10, decimal_places=2)
>rating = models.FloatField()
>pubdate = models.DateField()
>
> and I run the query:
>
> Book.objects.values('rating').annotate(books_per_rating=Count('id')).aggregate(Max(books_per_rating))
>
> I get a *DatabaseError*.
>
> According to this 
> https://docs.djangoproject.com/en/1.5/topics/db/aggregation/#aggregating-annotations,
>  
> Django supports aggregating annotations. But in the example given in the 
> link itself, they annotate over a *QuerySet* which in turn returns a *
> QuerySet* (and not *ValuesQuerySet*), so aggregate method runs 
> successfully. But in my example aggregating a *ValuesQuerySet* raises a *
> DatabaseError*.
>
> Is it a bug in Django? Because if Django does not support aggregation over 
> *ValuesQuerySet* then it should raise an exception at Django level (not *
> DatabaseError*).
>
>

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Re: Aggregating annotations

2013-07-23 Thread Debanshu Kundu 
This bug has been solved here: https://code.djangoproject.com/ticket/20782

On Friday, July 19, 2013 10:05:46 PM UTC+5:30, Debanshu Kundu wrote:
>
> Also interestingly, if I do: 
>
> Book.objects.values('rating').aggregate(Max('rating'))
>
> It returns an empty dict without performing any DB query!!
>
> On Friday, July 19, 2013 11:49:52 AM UTC+5:30, Debanshu Kundu wrote:
>>
>> If I have a model *Book* defined as:
>>
>> class Book(models.Model):
>>name = models.CharField(max_length=300)
>>pages = models.IntegerField()
>>price = models.DecimalField(max_digits=10, decimal_places=2)
>>rating = models.FloatField()
>>pubdate = models.DateField()
>>
>> and I run the query:
>>
>> Book.objects.values('rating').annotate(books_per_rating=Count('id')).aggregate(Max(books_per_rating))
>>
>> I get a *DatabaseError*.
>>
>> According to this 
>> https://docs.djangoproject.com/en/1.5/topics/db/aggregation/#aggregating-annotations,
>>  
>> Django supports aggregating annotations. But in the example given in the 
>> link itself, they annotate over a *QuerySet* which in turn returns a *
>> QuerySet* (and not *ValuesQuerySet*), so aggregate method runs 
>> successfully. But in my example aggregating a *ValuesQuerySet* raises a *
>> DatabaseError*.
>>
>> Is it a bug in Django? Because if Django does not support aggregation 
>> over *ValuesQuerySet* then it should raise an exception at Django level 
>> (not *DatabaseError*).
>>
>>
>
> It returns an empty dict without performing any DB query!!
>
> On Friday, July 19, 2013 11:49:52 AM UTC+5:30, Debanshu Kundu wrote:
>>
>> If I have a model *Book* defined as:
>>
>> class Book(models.Model):
>>name = models.CharField(max_length=300)
>>pages = models.IntegerField()
>>price = models.DecimalField(max_digits=10, decimal_places=2)
>>rating = models.FloatField()
>>pubdate = models.DateField()
>>
>> and I run the query:
>>
>> Book.objects.values('rating').annotate(books_per_rating=Count('id')).aggregate(Max(books_per_rating))
>>
>> I get a *DatabaseError*.
>>
>> According to this 
>> https://docs.djangoproject.com/en/1.5/topics/db/aggregation/#aggregating-annotations,
>>  
>> Django supports aggregating annotations. But in the example given in the 
>> link itself, they annotate over a *QuerySet* which in turn returns a *
>> QuerySet* (and not *ValuesQuerySet*), so aggregate method runs 
>> successfully. But in my example aggregating a *ValuesQuerySet* raises a *
>> DatabaseError*.
>>
>> Is it a bug in Django? Because if Django does not support aggregation 
>> over *ValuesQuerySet* then it should raise an exception at Django level 
>> (not *DatabaseError*).
>>
>>

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Re: How to force modelForm.is_valid() to use a specific database?

2013-07-23 Thread Fellipe Henrique 
The problem is: when usng modelForm, it try to validate the unique key in
the database, and this validation use a default database.. if I remove
primary_key=True in my model, work fine, but I need to set the pk in my
model, because when I try to get using: obj.get(xx)  show me error...


I try every think.. and I start to think is not possible multi-db in
"runtime" in django.. :(

T.·.F.·.A.·. S+F
*Fellipe Henrique P. Soares*

*Blog: http://fhbash.wordpress.com/*
*GitHub: https://github.com/fellipeh*
*Twitter: @fh_bash*


2013/7/23 Brian Millham 

> I've done that with this code:
>
> if form.is_valid():
>>   f = form.save(commit = False)
>>   f.save(using='yourdatabase')
>
>
> Works fine for me.
>
>
> On Tuesday, July 23, 2013 1:21:29 PM UTC-4, Fellipe Henrique wrote:
>>
>> I have many database setted in my setting.py   in my formModel, when I
>> try to validate the form, show me error:
>>
>> http://stackoverflow.com/**questions/17797419/modelforms-**
>> and-multiple-datasbase-error-**in-form-is-valid
>>
>> The problem is.. is_valid is going to "default" database... how can I
>> force to got to another database?
>>
>> Thanks.
>>
>  --
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>
>
>

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Re: How to force modelForm.is_valid() to use a specific database?

2013-07-23 Thread Brian Millham 
I've done that with this code:

if form.is_valid():
>   f = form.save(commit = False)
>   f.save(using='yourdatabase')


Works fine for me.


On Tuesday, July 23, 2013 1:21:29 PM UTC-4, Fellipe Henrique wrote:
>
> I have many database setted in my setting.py   in my formModel, when I try 
> to validate the form, show me error:
>
>
> http://stackoverflow.com/questions/17797419/modelforms-and-multiple-datasbase-error-in-form-is-valid
>
> The problem is.. is_valid is going to "default" database... how can I 
> force to got to another database?
>
> Thanks.
>

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How to force modelForm.is_valid() to use a specific database?

2013-07-23 Thread Fellipe Henrique 
I have many database setted in my setting.py   in my formModel, when I try 
to validate the form, show me error:

http://stackoverflow.com/questions/17797419/modelforms-and-multiple-datasbase-error-in-form-is-valid

The problem is.. is_valid is going to "default" database... how can I force 
to got to another database?

Thanks.

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How can I upload async files with django-storages

2013-07-23 Thread Nicolas Bases 
Hi all,

I'm doing a web site where the users can upload some images. These images
are uploaded through django-storages [0] to Amazon S3. But it's taking too
long to uploaded these files.

There is a way where I can upload these images async?

Thank you in advance!
Nicolas.

[0] http://django-storages.readthedocs.org/en/latest/backends/amazon-S3.html

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Re: Can I only have one "get_queryset" per Viewpage?

2013-07-23 Thread Mário Neto 
Exactly @Babatundle =)


2013/7/23 Babatunde Akinyanmi 

> Override your get method but it's easier to override the get_context_data
> method like
> # From my head
> def get_context_data(**kwargs):
> context = super(IndexView, self).get_context_data(**kwargs)
> #filter1 is already present as latest_poll_list in the context
> filter2 = Word.blah()
> filter3 = Word.blah_blah()
> context.update({
> "filter2": filter2,
> "filter3": filter3
> })
> return context
>
> Sent from my Windows Phone
> --
> From: Pepsodent Cola
> Sent: 7/22/2013 9:47 PM
> To: django-users@googlegroups.com
> Subject: Re: Can I only have one "get_queryset" per Viewpage?
>
> I'm having difficulty understanding the abstract explanations in that
> documentation.
> Could you or somebody else explain this, by showing by example using my
> code examples?
>
> *views.py*
>
> class IndexView(generic.ListView):
> template_name = 'polls/index.html'
> context_object_name = *'latest_poll_list'*
>
> def get_queryset(self):
> """
> Return the last five published polls
> (not including those set to be published in the future).
> """
> return Word.objects.filter(
> pub_date__lte=timezone.now()
> ).order_by('-pub_date')[:5]
>
> *### Filter 2*
> #Word.objects.filter(translation='')
> *### Filter 3*
> #Pronunciation.objects.filter(wordfield__translation='')
>
>
>
>
> *index.html*
>
> index.html
>
> {% if latest_poll_list %}
> 
> {% for word in *latest_poll_list* %}
> {{ word.wordfield
> }}
> {% endfor %}
> 
> {% else %}
> No polls are available.
> {% endif %}
>
>
>
> How should I write my IndexView class so that Filter 1, 2 and 3 list
> results are then sent to my index.html template file?
>
>
>
>
> On Monday, July 22, 2013 2:03:59 PM UTC+2, macndesign wrote:
>>
>> Hi, you can separate your querysets in get_context_data method.
>> See:
>> https://docs.djangoproject.com/en/dev/ref/class-based-views/mixins-simple/#django.views.generic.base.ContextMixin.get_context_data
>>
>>
>> 2013/7/22 Pepsodent Cola 
>>
>>> Hi,
>>>
>>> Can I only have one "get_queryset" for each Viewpage?
>>> If I wanted to add another database list on the same Viewpage how would
>>> that code look like for my Django *views.py* file?
>>>
>>> Example:
>>> https://docs.djangoproject.com/en/1.5/intro/tutorial04/#amend-views
>>>
>>> from polls.models import Choice, Poll
>>>
>>> class IndexView(generic.ListView):
>>> template_name = 'polls/index.html'
>>> *context_object_name = 'latest_poll_list'*
>>>
>>> *def get_queryset(self):*
>>> """Return the last five published polls."""
>>> return Poll.objects.order_by('-pub_date')[:5]
>>>
>>>
>>>
>>> I mean will "context_object_name" be able to separate between several
>>> "get_queryset(self)"?
>>> Because I want to have several different poll_lists on the same Viewpage.
>>>
>>> context_object_name = 'latest_poll_list'
>>>
>>>  --
>>> You received this message because you are subscribed to the Google
>>> Groups "Django users" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to django-users...@googlegroups.com.
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>>> Visit this group at http://groups.google.com/group/django-users.
>>> For more options, visit https://groups.google.com/groups/opt_out.
>>>
>>>
>>>
>>
>>
>>
>> --
>> Att. *Mário Araújo Chaves Neto*
>> *Programmer, Designer and U.I. Engineer*
>> *
>> *
>> *MBA in Design Digital* - 2008 - FIC
>> *Analysis and Systems Development* - 2011 - Estácio
>> *D**esign and Implementation of Internet Environments* - 2003 - FIC
>>
>  --
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>
>
>
> --
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>
>
>



-- 
Att. *Mário Araújo Chaves Neto*
*Programmer, Designer and U.I. Engineer*
*
*
*MBA in Design Digital* - 2008 - FIC
*Analysis and Systems Development* - 2011 - Estácio
*D**esign and Implementation of Internet Environments* - 2003 - FIC

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Re: Foreign Key problems with legacy database

2013-07-23 Thread Nick Dokos 
Avraham Serour  writes:

> you don't need songid = models.Integerfield()

... and the ForeignKey should not specify a db_column.

>
> On Tue, Jul 23, 2013 at 6:04 AM, Brian Millham  wrote:
>
> I have the following models:
>
> class Requestlist(models.Model):
>    id = models.IntegerField(primary_key=True)
>    songid = models.Integerfield()
>    song = ForeignKey('Song', db_column='songid')
> class Song(models.Model):
>   id = models.IntegerField(primary_key=True)
>   title = models.CharField(max_length=255L)
>
--
Nick

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Re: How to Create an Auto Incrementing Integer Field

2013-07-23 Thread Christian Erhardt 
you are very welcome

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Re: Foreign Key problems with legacy database

2013-07-23 Thread Avraham Serour 
you don't need songid = models.Integerfield()


On Tue, Jul 23, 2013 at 6:04 AM, Brian Millham  wrote:

> I have the following models:
>
> class Requestlist(models.Model):
>>id = models.IntegerField(primary_key=True)
>>songid = models.Integerfield()
>>song = ForeignKey('Song', db_column='songid')
>> class Song(models.Model):
>>   id = models.IntegerField(primary_key=True)
>>   title = models.CharField(max_length=255L)
>
>
> The relation should be Requestlist.songid = Song.id
>
> The above models seem to work for querying, but when I create a new
> requestlist, via a form, then I get the error that: Column songid specified
> twice.
>
> If I remove the ForeignKey, I can save the requestlist, but obviously I
> lose the relations.
>
> I've tried replacing the db_column='songid' with to_field='id' but that's
> worse. The relation then totally breaks.
>
> It's gotta be something simple that I'm overlooking
>
> Thanks!
>
> --
> You received this message because you are subscribed to the Google Groups
> "Django users" group.
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> email to django-users+unsubscr...@googlegroups.com.
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>
>
>

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RE: Can I only have one "get_queryset" per Viewpage?

2013-07-23 Thread Babatunde Akinyanmi 
Override your get method but it's easier to override the get_context_data
method like
# From my head
def get_context_data(**kwargs):
context = super(IndexView, self).get_context_data(**kwargs)
#filter1 is already present as latest_poll_list in the context
filter2 = Word.blah()
filter3 = Word.blah_blah()
context.update({
"filter2": filter2,
"filter3": filter3
})
return context

Sent from my Windows Phone
--
From: Pepsodent Cola
Sent: 7/22/2013 9:47 PM
To: django-users@googlegroups.com
Subject: Re: Can I only have one "get_queryset" per Viewpage?

I'm having difficulty understanding the abstract explanations in that
documentation.
Could you or somebody else explain this, by showing by example using my
code examples?

*views.py*

class IndexView(generic.ListView):
template_name = 'polls/index.html'
context_object_name = *'latest_poll_list'*

def get_queryset(self):
"""
Return the last five published polls
(not including those set to be published in the future).
"""
return Word.objects.filter(
pub_date__lte=timezone.now()
).order_by('-pub_date')[:5]

*### Filter 2*
#Word.objects.filter(translation='')
*### Filter 3*
#Pronunciation.objects.filter(wordfield__translation='')




*index.html*

index.html

{% if latest_poll_list %}

{% for word in *latest_poll_list* %}
{{ word.wordfield
}}
{% endfor %}

{% else %}
No polls are available.
{% endif %}



How should I write my IndexView class so that Filter 1, 2 and 3 list
results are then sent to my index.html template file?




On Monday, July 22, 2013 2:03:59 PM UTC+2, macndesign wrote:
>
> Hi, you can separate your querysets in get_context_data method.
> See:
> https://docs.djangoproject.com/en/dev/ref/class-based-views/mixins-simple/#django.views.generic.base.ContextMixin.get_context_data
>
>
> 2013/7/22 Pepsodent Cola 
>
>> Hi,
>>
>> Can I only have one "get_queryset" for each Viewpage?
>> If I wanted to add another database list on the same Viewpage how would
>> that code look like for my Django *views.py* file?
>>
>> Example:
>> https://docs.djangoproject.com/en/1.5/intro/tutorial04/#amend-views
>>
>> from polls.models import Choice, Poll
>>
>> class IndexView(generic.ListView):
>> template_name = 'polls/index.html'
>> *context_object_name = 'latest_poll_list'*
>>
>> *def get_queryset(self):*
>> """Return the last five published polls."""
>> return Poll.objects.order_by('-pub_date')[:5]
>>
>>
>>
>> I mean will "context_object_name" be able to separate between several
>> "get_queryset(self)"?
>> Because I want to have several different poll_lists on the same Viewpage.
>>
>> context_object_name = 'latest_poll_list'
>>
>>  --
>> You received this message because you are subscribed to the Google Groups
>> "Django users" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to django-users...@googlegroups.com .
>> To post to this group, send email to django...@googlegroups.com
>> .
>> Visit this group at http://groups.google.com/group/django-users.
>> For more options, visit https://groups.google.com/groups/opt_out.
>>
>>
>>
>
>
>
> --
> Att. *Mário Araújo Chaves Neto*
> *Programmer, Designer and U.I. Engineer*
> *
> *
> *MBA in Design Digital* - 2008 - FIC
> *Analysis and Systems Development* - 2011 - Estácio
> *D**esign and Implementation of Internet Environments* - 2003 - FIC
>
 --
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