I was wondering if anyone can shed a light on the error I get with my code:
from django.contrib.auth.models import User
from django.db import models
from django.contrib import admin
from django.template.defaultfilters import escape
from django.utils.translation import ugettext as _
from django.utils.encoding import force_unicode
from django.http import HttpResponse, HttpResponseRedirect
from django.core.urlresolvers import reverse
class DateTime(models.Model):
datetime = models.DateTimeField(auto_now_add=True)
def __unicode__(self):
return unicode(self.datetime.strftime("%b %d, %Y, %I:%M %p"))
class Country(models.Model):
country = models.CharField(max_length=50)
def __unicode__(self):
return unicode(self.country)
class Artist(models.Model):
artist = models.CharField(max_length=50)
country = models.ForeignKey(Country, blank=True, null=True)
user = models.ForeignKey(User, blank=True, null=True)
created = models.ForeignKey(DateTime)
notes = models.TextField()
def __unicode__(self):
return artist
class Song(models.Model):
name = models.CharField(max_length=200)
artist = models.ForeignKey(Artist, blank=True, null=True)
country = models.ForeignKey(Country, blank=True, null=True)
user = models.ForeignKey(User, blank=True, null=True)
created = models.ForeignKey(DateTime)
notes = models.TextField()
def __unicode__(self):
return song
class FileType(models.Model):
file_type = models.CharField(max_length=3)
description = models.TextField()
user = models.ForeignKey(User, blank=True, null=True)
created = models.ForeignKey(DateTime)
notes = models.TextField()
def __unicode__(self):
return file_type
class Level(models.Model):
level = models.CharField(max_length=3)
description = models.TextField()
user = models.ForeignKey(User, blank=True, null=True)
created = models.ForeignKey(DateTime)
notes = models.TextField()
def __unicode__(self):
return level
class MusicSheet(models.Model):
version = models.CharField(max_length=2)
song = models.ForeignKey(Song, blank=True, null=True)
artist = models.ForeignKey(Artist, blank=True, null=True)
file_type = models.ForeignKey(FileType, blank=True, null=True)
level = models.ForeignKey(Level, blank=True, null=True)
user = models.ForeignKey(User, blank=True, null=True)
created = models.ForeignKey(DateTime)
text = models.TextField()
notes = models.TextField()
class MusicSheetAdmin(admin.ModelAdmin):
list_display = ["version", "song", "artist", "file_type", "level", "user", "created", "text", "notes"]
search_fields = ["song"]
class MusicSheetInline(admin.TabularInline):
model = MusicSheet
class DateAdmin(admin.ModelAdmin):
list_display = ["datetime"]
inlines = [MusicSheet]
def response_add(self, request, obj, post_url_continue='../%s/'):
""" Determines the HttpResponse for the add_view stage. """
opts = obj._meta
pk_value = obj._get_pk_val()
msg = "Song(s) were added successfully."
# Here, we distinguish between different save types by checking for
# the presence of keys in request.POST.
if request.POST.has_key("_continue"):
self.message_user(request, msg + ' ' + _("You may edit it again below."))
if request.POST.has_key("_popup"):
post_url_continue += "?_popup=1"
return HttpResponseRedirect(post_url_continue % pk_value)
if request.POST.has_key("_popup"):
return HttpResponse(
'<script type="text/javascript">opener.dismissAddAnotherPopup(window, "%s", "%s");'
'</script>' % (escape(pk_value), escape(obj)))
elif request.POST.has_key("_addanother"):
self.message_user(request, msg + ' ' + (_("You may add another %s below.") %
force_unicode(opts.verbose_name)))
return HttpResponseRedirect(request.path)
else:
self.message_user(request, msg)
for music_sheet in MusicSheet.objects.filter(created=obj):
if not music_sheet.user:
music_sheet.user = request.user
music_sheet.save()
return HttpResponseRedirect(reverse("admin:musicsheet_musicsheet_changelist"))
admin.site.register(MusicSheet, MusicSheetAdmin)
admin.site.register(DateTime, DateAdmin)
Error (manage.py syncdb):
Traceback (most recent call last):
File "manage.py", line 11, in <module>
execute_manager(settings)
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/core/management/__init__.py", line 438, in execute_manager
utility.execute()
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/core/management/__init__.py", line 379, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/core/management/base.py", line 191, in run_from_argv
self.execute(*args, **options.__dict__)
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/core/management/base.py", line 219, in execute
self.validate()
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/core/management/base.py", line 249, in validate
num_errors = get_validation_errors(s, app)
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/core/management/validation.py", line 35, in get_validation_errors
for (app_name, error) in get_app_errors().items():
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/db/models/loading.py", line 146, in get_app_errors
self._populate()
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/db/models/loading.py", line 61, in _populate
self.load_app(app_name, True)
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/db/models/loading.py", line 78, in load_app
models = import_module('.models', app_name)
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/Users/ahmed/Documents/projects/todolist/musicsheet/models.py", line 122, in <module>
admin.site.register(DateTime, DateAdmin)
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/contrib/admin/sites.py", line 90, in register
validate(admin_class, model)
File "/Library/Python/2.6/site-packages/Django-1.2.4-py2.6.egg/django/contrib/admin/validation.py", line 151, in validate
"from BaseModelAdmin." % (cls.__name__, idx))
django.core.exceptions.ImproperlyConfigured: 'DateAdmin.inlines[0]' does not inherit from BaseModelAdmin.
Should be