Hi,
I'm implementing the coltrane blog app in "Practical Django Projects"
and when I try to syncdb I get this odd error:
Error: Couldn't install apps, because there were errors in one or more
models:
coltrane: cannot import name ugettext_lazy
Anybody knows what this might mean?
Thanks in advance,
Fernando
PS:
These are my installed apps:
INSTALLED_APPS = (
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.admin',
'django.contrib.flatpages',
'cms.search',
'coltrane',
)
And this is my model:
import datetime
from django.db import models
from django.contrib.auth.models import User
from tagging.fields import TagField
from markdown import markdown
import datetime
class Category(models.Model):
"""
Categories that will be assigned to entries
"""
title = models.CharField(maxlength=250, help_text = "Maximum 250
chars")
slug = models.SlugField(prepopulate_from=['title'],
unique=True,
help_text = "Suggested value automagically
generated from title. Must be unique")
description = models.TextField()
class Meta:
verbose_name_plural = "Categories"
ordering = ['title']
class Admin:
pass
def __unicode__(self):
return self.title
def __str__(self):
"""
Admin uses this one to name the instance
"""
return self.title
def get_absolute_url(self):
"""
All django models that will be used in a public facing view must
implemente this method.
"""
return "/categories/%s/" % (self.slug)
class Entry(models.Model):
"""
Article
"""
LIVE_STATUS = 1
DRAFT_STATUS = 2
HIDDEN_STATUS = 3
STATUS_CHOICES = ((LIVE_STATUS, 'Live'),
(DRAFT_STATUS, 'Draft'),
(HIDDEN_STATUS, 'Hidden'),)
title = models.CharField(maxlength=250)
slug = models.SlugField(prepopulate_from=['title'],
unique_for_date='pub_date')
excerpt = models.CharField(blank=True)
body = models.TextField()
pub_date = models.DateField(default = datetime.datetime.now)
author = models.ForeignKey(User)
enable_comments = models.BooleanField(default=True)
featured = models.BooleanField(default = False)
status = models.IntegerField(choices = STATUS_CHOICES, default =
Entry.LIVE_STATUS)
categories = models.ManyToManyField(Category)
tags = TagField()
# html rendered fields
# editable=False means it shouldn't be editable in the admin view
excerpt_html = models.TextField(editable=False, blank=True)
body_html = models.TextField(editable=False, blank=True)
class Meta:
verbose_name_plural = "Entries"
ordering = ['-pub_date']
class Admin:
pass
def __unicode__(self):
return "%s - (%s)" % (self.title, self.pub_date.strftime("%Y/%
b/%d").lower())
def __str__(self):
return self.__unicode__()
def get_absolute_url(self):
"""
All django models that will be used in a public facing view must
implemente this method.
"""
return "/weblog/%s/%s" % (self.pub_date.strftime("%Y/%b/%
d").lower(), self.slug)
def save(self):
"""
Override Model's save method to save an htmlified version of the
markdown text.
"""
self.body_html = markdown(self.body)
if self.excerpt:
self.excerpt_html = markdown(self.excerpt)
super(Entry, self).save()
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