Hi,
I'm generating some test data for my models.
I have Country, States and Citys, this are descending from
models.Model.
Example:
class Country(models.Model):
name =
models.CharField('nombre',maxlength=50,blank=False,db_index=True,unique=True)
language = models.CharField('lenguaje',maxlength=5,blank=False)
zipcode =
models.CharField('indicativo',maxlength=10,blank=False,unique=True)
def __str__(self):
return '%s - id: %s' % (self.name, self.id)
class Admin:
pass
class Meta:
verbose_name = 'pais'
verbose_name_plural = 'paises'
db_table = 'jhonWebCountry'
ordering = ['name']
Now, I have a base class:
class BaseContent(models.Model):
createdOn = models.DateTimeField('fecha de
creación',editable=False,auto_now_add=True)
modifedOn = models.DateTimeField('fecha de
modificación',editable=False,auto_now=True)
tags =
models.CharField('etiquetas',maxlength=300,blank=False)
title =
models.CharField('titulo',maxlength=50,blank=False,db_index=True)
userId = models.SlugField(prepopulate_from=('title',
'title'),blank=False)
content = models.TextField('contenido')
author =
models.CharField('autor',maxlength=50,blank=False,db_index=True,default='1')
status =
models.IntegerField('estado',default=1,choices=ESTATUS_CHOICES)
def __str__(self):
return '%s - Id: %s' % (self.title, self.id)
def html(self):
return content
class Admin:
pass
class Meta:
verbose_name = 'contenido'
db_table = 'jhonWebContent'
get_latest_by = 'modifedOn'
ordering = ['title']
And in a separate module, I have:
from django.db import models
from jhonWeb.core.models import BaseContent
# Copyrigth Soluciones Vulcano Ltda www.solucionesvulcano.com
# Core: Modulo de bloging y comentarios...
""" Clase de blog o diario/bitacora """
class Blog(BaseContent):
def get_absolute_url(self):
return "/diario/%s/" % self.userId
class Admin:
pass
class Meta:
verbose_name = 'diario'
db_table = 'jhonWebBlog'
So, I get the tables created in sqlite, I see the admin interface of
this, I have the urls settings. All fine.
So, I go to the command line:
>>blog = Blog(tags='Producto1',title='Blog1',content='Contenido Blog')
>>blog.id
Print nothing
>>blog.save()
>>blog.id
1
And I query:
>>Blog.objects.all().count()
0
or
>>blogs = Blog.objects.all()
>>blogs.count()
0
I go to the admin interface, I click on Blogs, I *SEE* the created
blog, I clik on it and get a 404 error page. I return to the command
line and try:
>>blog = Blog.objects.filter(id=1)
>>blog.id
Traceback (most recent call last):
File "<console>", line 1, in ?
AttributeError: 'QuerySet' object has no attribute 'id'
I try with Country, State and City, both in command line and Admin
pages, and are fine...
Weird...
So, I remove the subclassing, copy the fields from BaseContent to Blog,
then recreate the database and try.
Work fine...
My project have this layout:
-root
-root\core = here BaseContent
-root\blogs = here Blog(BaseContent). I import this way: from
jhonWeb.core.models import BaseContent
blog.save()
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