py_tasks_melange: comparison app/django/contrib/admin/options.py

equal deleted inserted replaced

-:6641e941ef1e
+:ff1a9aa48cfd
+from django import forms, template
+from django.forms.formsets import all_valid
+from django.forms.models import modelform_factory, inlineformset_factory
+from django.forms.models import BaseInlineFormSet
+from django.contrib.contenttypes.models import ContentType
+from django.contrib.admin import widgets
+from django.contrib.admin import helpers
+from django.contrib.admin.util import quote, unquote, flatten_fieldsets, get_deleted_objects
+from django.core.exceptions import PermissionDenied
+from django.db import models, transaction
+from django.http import Http404, HttpResponse, HttpResponseRedirect
+from django.shortcuts import get_object_or_404, render_to_response
+from django.utils.html import escape
+from django.utils.safestring import mark_safe
+from django.utils.text import capfirst, get_text_list
+from django.utils.translation import ugettext as _
+from django.utils.encoding import force_unicode
+try:
+set
+except NameError:
+from sets import Set as set     # Python 2.3 fallback
+HORIZONTAL, VERTICAL = 1, 2
+# returns the <ul> class for a given radio_admin field
+get_ul_class = lambda x: 'radiolist%s' % ((x == HORIZONTAL) and ' inline' or '')
+class IncorrectLookupParameters(Exception):
+pass
+class BaseModelAdmin(object):
+"""Functionality common to both ModelAdmin and InlineAdmin."""
+raw_id_fields = ()
+fields = None
+exclude = None
+fieldsets = None
+form = forms.ModelForm
+filter_vertical = ()
+filter_horizontal = ()
+radio_fields = {}
+prepopulated_fields = {}
+def formfield_for_dbfield(self, db_field, **kwargs):
+"""
+Hook for specifying the form Field instance for a given database Field
+instance.
+If kwargs are given, they're passed to the form Field's constructor.
+"""
+# If the field specifies choices, we don't need to look for special
+# admin widgets - we just need to use a select widget of some kind.
+if db_field.choices:
+if db_field.name in self.radio_fields:
+# If the field is named as a radio_field, use a RadioSelect
+kwargs['widget'] = widgets.AdminRadioSelect(attrs={
+'class': get_ul_class(self.radio_fields[db_field.name]),
+})
+kwargs['choices'] = db_field.get_choices(
+include_blank = db_field.blank,
+blank_choice=[('', _('None'))]
+)
+return db_field.formfield(**kwargs)
+else:
+# Otherwise, use the default select widget.
+return db_field.formfield(**kwargs)
+# For DateTimeFields, use a special field and widget.
+if isinstance(db_field, models.DateTimeField):
+kwargs['form_class'] = forms.SplitDateTimeField
+kwargs['widget'] = widgets.AdminSplitDateTime()
+return db_field.formfield(**kwargs)
+# For DateFields, add a custom CSS class.
+if isinstance(db_field, models.DateField):
+kwargs['widget'] = widgets.AdminDateWidget
+return db_field.formfield(**kwargs)
+# For TimeFields, add a custom CSS class.
+if isinstance(db_field, models.TimeField):
+kwargs['widget'] = widgets.AdminTimeWidget
+return db_field.formfield(**kwargs)
+# For TextFields, add a custom CSS class.
+if isinstance(db_field, models.TextField):
+kwargs['widget'] = widgets.AdminTextareaWidget
+return db_field.formfield(**kwargs)
+# For URLFields, add a custom CSS class.
+if isinstance(db_field, models.URLField):
+kwargs['widget'] = widgets.AdminURLFieldWidget
+return db_field.formfield(**kwargs)
+# For IntegerFields, add a custom CSS class.
+if isinstance(db_field, models.IntegerField):
+kwargs['widget'] = widgets.AdminIntegerFieldWidget
+return db_field.formfield(**kwargs)
+# For CommaSeparatedIntegerFields, add a custom CSS class.
+if isinstance(db_field, models.CommaSeparatedIntegerField):
+kwargs['widget'] = widgets.AdminCommaSeparatedIntegerFieldWidget
+return db_field.formfield(**kwargs)
+# For TextInputs, add a custom CSS class.
+if isinstance(db_field, models.CharField):
+kwargs['widget'] = widgets.AdminTextInputWidget
+return db_field.formfield(**kwargs)
+# For FileFields and ImageFields add a link to the current file.
+if isinstance(db_field, models.ImageField) or isinstance(db_field, models.FileField):
+kwargs['widget'] = widgets.AdminFileWidget
+return db_field.formfield(**kwargs)
+# For ForeignKey or ManyToManyFields, use a special widget.
+if isinstance(db_field, (models.ForeignKey, models.ManyToManyField)):
+if isinstance(db_field, models.ForeignKey) and db_field.name in self.raw_id_fields:
+kwargs['widget'] = widgets.ForeignKeyRawIdWidget(db_field.rel)
+elif isinstance(db_field, models.ForeignKey) and db_field.name in self.radio_fields:
+kwargs['widget'] = widgets.AdminRadioSelect(attrs={
+'class': get_ul_class(self.radio_fields[db_field.name]),
+})
+kwargs['empty_label'] = db_field.blank and _('None') or None
+else:
+if isinstance(db_field, models.ManyToManyField):
+# If it uses an intermediary model, don't show field in admin.
+if db_field.rel.through is not None:
+return None
+elif db_field.name in self.raw_id_fields:
+kwargs['widget'] = widgets.ManyToManyRawIdWidget(db_field.rel)
+kwargs['help_text'] = ''
+elif db_field.name in (list(self.filter_vertical) + list(self.filter_horizontal)):
+kwargs['widget'] = widgets.FilteredSelectMultiple(db_field.verbose_name, (db_field.name in self.filter_vertical))
+# Wrap the widget's render() method with a method that adds
+# extra HTML to the end of the rendered output.
+formfield = db_field.formfield(**kwargs)
+# Don't wrap raw_id fields. Their add function is in the popup window.
+if not db_field.name in self.raw_id_fields:
+# formfield can be None if it came from a OneToOneField with
+# parent_link=True
+if formfield is not None:
+formfield.widget = widgets.RelatedFieldWidgetWrapper(formfield.widget, db_field.rel, self.admin_site)
+return formfield
+# For any other type of field, just call its formfield() method.
+return db_field.formfield(**kwargs)
+def _declared_fieldsets(self):
+if self.fieldsets:
+return self.fieldsets
+elif self.fields:
+return [(None, {'fields': self.fields})]
+return None
+declared_fieldsets = property(_declared_fieldsets)
+class ModelAdmin(BaseModelAdmin):
+"Encapsulates all admin options and functionality for a given model."
+__metaclass__ = forms.MediaDefiningClass
+list_display = ('__str__',)
+list_display_links = ()
+list_filter = ()
+list_select_related = False
+list_per_page = 100
+search_fields = ()
+date_hierarchy = None
+save_as = False
+save_on_top = False
+ordering = None
+inlines = []
+# Custom templates (designed to be over-ridden in subclasses)
+change_form_template = None
+change_list_template = None
+delete_confirmation_template = None
+object_history_template = None
+def __init__(self, model, admin_site):
+self.model = model
+self.opts = model._meta
+self.admin_site = admin_site
+self.inline_instances = []
+for inline_class in self.inlines:
+inline_instance = inline_class(self.model, self.admin_site)
+self.inline_instances.append(inline_instance)
+super(ModelAdmin, self).__init__()
+def __call__(self, request, url):
+# Delegate to the appropriate method, based on the URL.
+if url is None:
+return self.changelist_view(request)
+elif url == "add":
+return self.add_view(request)
+elif url.endswith('/history'):
+return self.history_view(request, unquote(url[:-8]))
+elif url.endswith('/delete'):
+return self.delete_view(request, unquote(url[:-7]))
+else:
+return self.change_view(request, unquote(url))
+def _media(self):
+from django.conf import settings
+js = ['js/core.js', 'js/admin/RelatedObjectLookups.js']
+if self.prepopulated_fields:
+js.append('js/urlify.js')
+if self.opts.get_ordered_objects():
+js.extend(['js/getElementsBySelector.js', 'js/dom-drag.js' , 'js/admin/ordering.js'])
+return forms.Media(js=['%s%s' % (settings.ADMIN_MEDIA_PREFIX, url) for url in js])
+media = property(_media)
+def has_add_permission(self, request):
+"Returns True if the given request has permission to add an object."
+opts = self.opts
+return request.user.has_perm(opts.app_label + '.' + opts.get_add_permission())
+def has_change_permission(self, request, obj=None):
+"""
+Returns True if the given request has permission to change the given
+Django model instance.
+If `obj` is None, this should return True if the given request has
+permission to change *any* object of the given type.
+"""
+opts = self.opts
+return request.user.has_perm(opts.app_label + '.' + opts.get_change_permission())
+def has_delete_permission(self, request, obj=None):
+"""
+Returns True if the given request has permission to change the given
+Django model instance.
+If `obj` is None, this should return True if the given request has
+permission to delete *any* object of the given type.
+"""
+opts = self.opts
+return request.user.has_perm(opts.app_label + '.' + opts.get_delete_permission())
+def queryset(self, request):
+"""
+Returns a QuerySet of all model instances that can be edited by the
+admin site. This is used by changelist_view.
+"""
+qs = self.model._default_manager.get_query_set()
+# TODO: this should be handled by some parameter to the ChangeList.
+ordering = self.ordering or () # otherwise we might try to *None, which is bad ;)
+if ordering:
+qs = qs.order_by(*ordering)
+return qs
+def get_fieldsets(self, request, obj=None):
+"Hook for specifying fieldsets for the add form."
+if self.declared_fieldsets:
+return self.declared_fieldsets
+form = self.get_form(request, obj)
+return [(None, {'fields': form.base_fields.keys()})]
+def get_form(self, request, obj=None, **kwargs):
+"""
+Returns a Form class for use in the admin add view. This is used by
+add_view and change_view.
+"""
+if self.declared_fieldsets:
+fields = flatten_fieldsets(self.declared_fieldsets)
+else:
+fields = None
+if self.exclude is None:
+exclude = []
+else:
+exclude = list(self.exclude)
+defaults = {
+"form": self.form,
+"fields": fields,
+"exclude": exclude + kwargs.get("exclude", []),
+"formfield_callback": self.formfield_for_dbfield,
+}
+defaults.update(kwargs)
+return modelform_factory(self.model, **defaults)
+def get_formsets(self, request, obj=None):
+for inline in self.inline_instances:
+yield inline.get_formset(request, obj)
+def log_addition(self, request, object):
+"""
+Log that an object has been successfully added.
+The default implementation creates an admin LogEntry object.
+"""
+from django.contrib.admin.models import LogEntry, ADDITION
+LogEntry.objects.log_action(
+user_id         = request.user.pk,
+content_type_id = ContentType.objects.get_for_model(object).pk,
+object_id       = object.pk,
+object_repr     = force_unicode(object),
+action_flag     = ADDITION
+)
+def log_change(self, request, object, message):
+"""
+Log that an object has been successfully changed.
+The default implementation creates an admin LogEntry object.
+"""
+from django.contrib.admin.models import LogEntry, CHANGE
+LogEntry.objects.log_action(
+user_id         = request.user.pk,
+content_type_id = ContentType.objects.get_for_model(object).pk,
+object_id       = object.pk,
+object_repr     = force_unicode(object),
+action_flag     = CHANGE,
+change_message  = message
+)
+def log_deletion(self, request, object, object_repr):
+"""
+Log that an object has been successfully deleted. Note that since the
+object is deleted, it might no longer be safe to call *any* methods
+on the object, hence this method getting object_repr.
+The default implementation creates an admin LogEntry object.
+"""
+from django.contrib.admin.models import LogEntry, DELETION
+LogEntry.objects.log_action(
+user_id         = request.user.id,
+content_type_id = ContentType.objects.get_for_model(self.model).pk,
+object_id       = object.pk,
+object_repr     = object_repr,
+action_flag     = DELETION
+)
+def construct_change_message(self, request, form, formsets):
+"""
+Construct a change message from a changed object.
+"""
+change_message = []
+if form.changed_data:
+change_message.append(_('Changed %s.') % get_text_list(form.changed_data, _('and')))
+if formsets:
+for formset in formsets:
+for added_object in formset.new_objects:
+change_message.append(_('Added %(name)s "%(object)s".')
+% {'name': added_object._meta.verbose_name,
+'object': added_object})
+for changed_object, changed_fields in formset.changed_objects:
+change_message.append(_('Changed %(list)s for %(name)s "%(object)s".')
+% {'list': get_text_list(changed_fields, _('and')),
+'name': changed_object._meta.verbose_name,
+'object': changed_object})
+for deleted_object in formset.deleted_objects:
+change_message.append(_('Deleted %(name)s "%(object)s".')
+% {'name': deleted_object._meta.verbose_name,
+'object': deleted_object})
+change_message = ' '.join(change_message)
+return change_message or _('No fields changed.')
+def message_user(self, request, message):
+"""
+Send a message to the user. The default implementation
+posts a message using the auth Message object.
+"""
+request.user.message_set.create(message=message)
+def save_form(self, request, form, change):
+"""
+Given a ModelForm return an unsaved instance. ``change`` is True if
+the object is being changed, and False if it's being added.
+"""
+return form.save(commit=False)
+def save_model(self, request, obj, form, change):
+"""
+Given a model instance save it to the database.
+"""
+obj.save()
+def save_formset(self, request, form, formset, change):
+"""
+Given an inline formset save it to the database.
+"""
+formset.save()
+def render_change_form(self, request, context, add=False, change=False, form_url='', obj=None):
+opts = self.model._meta
+app_label = opts.app_label
+ordered_objects = opts.get_ordered_objects()
+context.update({
+'add': add,
+'change': change,
+'has_add_permission': self.has_add_permission(request),
+'has_change_permission': self.has_change_permission(request, obj),
+'has_delete_permission': self.has_delete_permission(request, obj),
+'has_file_field': True, # FIXME - this should check if form or formsets have a FileField,
+'has_absolute_url': hasattr(self.model, 'get_absolute_url'),
+'ordered_objects': ordered_objects,
+'form_url': mark_safe(form_url),
+'opts': opts,
+'content_type_id': ContentType.objects.get_for_model(self.model).id,
+'save_as': self.save_as,
+'save_on_top': self.save_on_top,
+'root_path': self.admin_site.root_path,
+})
+return render_to_response(self.change_form_template or [
+"admin/%s/%s/change_form.html" % (app_label, opts.object_name.lower()),
+"admin/%s/change_form.html" % app_label,
+"admin/change_form.html"
+], context, context_instance=template.RequestContext(request))
+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 = _('The %(name)s "%(obj)s" was added successfully.') % {'name': force_unicode(opts.verbose_name), 'obj': force_unicode(obj)}
+# 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() calls force_unicode.
+(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)
+# Figure out where to redirect. If the user has change permission,
+# redirect to the change-list page for this object. Otherwise,
+# redirect to the admin index.
+if self.has_change_permission(request, None):
+post_url = '../'
+else:
+post_url = '../../../'
+return HttpResponseRedirect(post_url)
+def response_change(self, request, obj):
+"""
+Determines the HttpResponse for the change_view stage.
+"""
+opts = obj._meta
+pk_value = obj._get_pk_val()
+msg = _('The %(name)s "%(obj)s" was changed successfully.') % {'name': force_unicode(opts.verbose_name), 'obj': force_unicode(obj)}
+if request.POST.has_key("_continue"):
+self.message_user(request, msg + ' ' + _("You may edit it again below."))
+if request.REQUEST.has_key('_popup'):
+return HttpResponseRedirect(request.path + "?_popup=1")
+else:
+return HttpResponseRedirect(request.path)
+elif request.POST.has_key("_saveasnew"):
+msg = _('The %(name)s "%(obj)s" was added successfully. You may edit it again below.') % {'name': force_unicode(opts.verbose_name), 'obj': obj}
+self.message_user(request, msg)
+return HttpResponseRedirect("../%s/" % pk_value)
+elif request.POST.has_key("_addanother"):
+self.message_user(request, msg + ' ' + (_("You may add another %s below.") % force_unicode(opts.verbose_name)))
+return HttpResponseRedirect("../add/")
+else:
+self.message_user(request, msg)
+return HttpResponseRedirect("../")
+def add_view(self, request, form_url='', extra_context=None):
+"The 'add' admin view for this model."
+model = self.model
+opts = model._meta
+if not self.has_add_permission(request):
+raise PermissionDenied
+ModelForm = self.get_form(request)
+formsets = []
+if request.method == 'POST':
+form = ModelForm(request.POST, request.FILES)
+if form.is_valid():
+form_validated = True
+new_object = self.save_form(request, form, change=False)
+else:
+form_validated = False
+new_object = self.model()
+for FormSet in self.get_formsets(request):
+formset = FormSet(data=request.POST, files=request.FILES,
+instance=new_object,
+save_as_new=request.POST.has_key("_saveasnew"))
+formsets.append(formset)
+if all_valid(formsets) and form_validated:
+self.save_model(request, new_object, form, change=False)
+form.save_m2m()
+for formset in formsets:
+self.save_formset(request, form, formset, change=False)
+self.log_addition(request, new_object)
+return self.response_add(request, new_object)
+else:
+# Prepare the dict of initial data from the request.
+# We have to special-case M2Ms as a list of comma-separated PKs.
+initial = dict(request.GET.items())
+for k in initial:
+try:
+f = opts.get_field(k)
+except models.FieldDoesNotExist:
+continue
+if isinstance(f, models.ManyToManyField):
+initial[k] = initial[k].split(",")
+form = ModelForm(initial=initial)
+for FormSet in self.get_formsets(request):
+formset = FormSet(instance=self.model())
+formsets.append(formset)
+adminForm = helpers.AdminForm(form, list(self.get_fieldsets(request)), self.prepopulated_fields)
+media = self.media + adminForm.media
+inline_admin_formsets = []
+for inline, formset in zip(self.inline_instances, formsets):
+fieldsets = list(inline.get_fieldsets(request))
+inline_admin_formset = helpers.InlineAdminFormSet(inline, formset, fieldsets)
+inline_admin_formsets.append(inline_admin_formset)
+media = media + inline_admin_formset.media
+context = {
+'title': _('Add %s') % force_unicode(opts.verbose_name),
+'adminform': adminForm,
+'is_popup': request.REQUEST.has_key('_popup'),
+'show_delete': False,
+'media': mark_safe(media),
+'inline_admin_formsets': inline_admin_formsets,
+'errors': helpers.AdminErrorList(form, formsets),
+'root_path': self.admin_site.root_path,
+'app_label': opts.app_label,
+}
+context.update(extra_context or {})
+return self.render_change_form(request, context, add=True)
+add_view = transaction.commit_on_success(add_view)
+def change_view(self, request, object_id, extra_context=None):
+"The 'change' admin view for this model."
+model = self.model
+opts = model._meta
+try:
+obj = model._default_manager.get(pk=object_id)
+except model.DoesNotExist:
+# Don't raise Http404 just yet, because we haven't checked
+# permissions yet. We don't want an unauthenticated user to be able
+# to determine whether a given object exists.
+obj = None
+if not self.has_change_permission(request, obj):
+raise PermissionDenied
+if obj is None:
+raise Http404('%s object with primary key %r does not exist.' % (force_unicode(opts.verbose_name), escape(object_id)))
+if request.method == 'POST' and request.POST.has_key("_saveasnew"):
+return self.add_view(request, form_url='../../add/')
+ModelForm = self.get_form(request, obj)
+formsets = []
+if request.method == 'POST':
+form = ModelForm(request.POST, request.FILES, instance=obj)
+if form.is_valid():
+form_validated = True
+new_object = self.save_form(request, form, change=True)
+else:
+form_validated = False
+new_object = obj
+for FormSet in self.get_formsets(request, new_object):
+formset = FormSet(request.POST, request.FILES,
+instance=new_object)
+formsets.append(formset)
+if all_valid(formsets) and form_validated:
+self.save_model(request, new_object, form, change=True)
+form.save_m2m()
+for formset in formsets:
+self.save_formset(request, form, formset, change=True)
+change_message = self.construct_change_message(request, form, formsets)
+self.log_change(request, new_object, change_message)
+return self.response_change(request, new_object)
+else:
+form = ModelForm(instance=obj)
+for FormSet in self.get_formsets(request, obj):
+formset = FormSet(instance=obj)
+formsets.append(formset)
+adminForm = helpers.AdminForm(form, self.get_fieldsets(request, obj), self.prepopulated_fields)
+media = self.media + adminForm.media
+inline_admin_formsets = []
+for inline, formset in zip(self.inline_instances, formsets):
+fieldsets = list(inline.get_fieldsets(request, obj))
+inline_admin_formset = helpers.InlineAdminFormSet(inline, formset, fieldsets)
+inline_admin_formsets.append(inline_admin_formset)
+media = media + inline_admin_formset.media
+context = {
+'title': _('Change %s') % force_unicode(opts.verbose_name),
+'adminform': adminForm,
+'object_id': object_id,
+'original': obj,
+'is_popup': request.REQUEST.has_key('_popup'),
+'media': mark_safe(media),
+'inline_admin_formsets': inline_admin_formsets,
+'errors': helpers.AdminErrorList(form, formsets),
+'root_path': self.admin_site.root_path,
+'app_label': opts.app_label,
+}
+context.update(extra_context or {})
+return self.render_change_form(request, context, change=True, obj=obj)
+change_view = transaction.commit_on_success(change_view)
+def changelist_view(self, request, extra_context=None):
+"The 'change list' admin view for this model."
+from django.contrib.admin.views.main import ChangeList, ERROR_FLAG
+opts = self.model._meta
+app_label = opts.app_label
+if not self.has_change_permission(request, None):
+raise PermissionDenied
+try:
+cl = ChangeList(request, self.model, self.list_display, self.list_display_links, self.list_filter,
+self.date_hierarchy, self.search_fields, self.list_select_related, self.list_per_page, self)
+except IncorrectLookupParameters:
+# Wacky lookup parameters were given, so redirect to the main
+# changelist page, without parameters, and pass an 'invalid=1'
+# parameter via the query string. If wacky parameters were given and
+# the 'invalid=1' parameter was already in the query string, something
+# is screwed up with the database, so display an error page.
+if ERROR_FLAG in request.GET.keys():
+return render_to_response('admin/invalid_setup.html', {'title': _('Database error')})
+return HttpResponseRedirect(request.path + '?' + ERROR_FLAG + '=1')
+context = {
+'title': cl.title,
+'is_popup': cl.is_popup,
+'cl': cl,
+'has_add_permission': self.has_add_permission(request),
+'root_path': self.admin_site.root_path,
+'app_label': app_label,
+}
+context.update(extra_context or {})
+return render_to_response(self.change_list_template or [
+'admin/%s/%s/change_list.html' % (app_label, opts.object_name.lower()),
+'admin/%s/change_list.html' % app_label,
+'admin/change_list.html'
+], context, context_instance=template.RequestContext(request))
+def delete_view(self, request, object_id, extra_context=None):
+"The 'delete' admin view for this model."
+opts = self.model._meta
+app_label = opts.app_label
+try:
+obj = self.model._default_manager.get(pk=object_id)
+except self.model.DoesNotExist:
+# Don't raise Http404 just yet, because we haven't checked
+# permissions yet. We don't want an unauthenticated user to be able
+# to determine whether a given object exists.
+obj = None
+if not self.has_delete_permission(request, obj):
+raise PermissionDenied
+if obj is None:
+raise Http404('%s object with primary key %r does not exist.' % (force_unicode(opts.verbose_name), escape(object_id)))
+# Populate deleted_objects, a data structure of all related objects that
+# will also be deleted.
+deleted_objects = [mark_safe(u'%s: <a href="../../%s/">%s</a>' % (escape(force_unicode(capfirst(opts.verbose_name))), quote(object_id), escape(obj))), []]
+perms_needed = set()
+get_deleted_objects(deleted_objects, perms_needed, request.user, obj, opts, 1, self.admin_site)
+if request.POST: # The user has already confirmed the deletion.
+if perms_needed:
+raise PermissionDenied
+obj_display = force_unicode(obj)
+obj.delete()
+self.log_deletion(request, obj, obj_display)
+self.message_user(request, _('The %(name)s "%(obj)s" was deleted successfully.') % {'name': force_unicode(opts.verbose_name), 'obj': force_unicode(obj_display)})
+if not self.has_change_permission(request, None):
+return HttpResponseRedirect("../../../../")
+return HttpResponseRedirect("../../")
+context = {
+"title": _("Are you sure?"),
+"object_name": force_unicode(opts.verbose_name),
+"object": obj,
+"deleted_objects": deleted_objects,
+"perms_lacking": perms_needed,
+"opts": opts,
+"root_path": self.admin_site.root_path,
+"app_label": app_label,
+}
+context.update(extra_context or {})
+return render_to_response(self.delete_confirmation_template or [
+"admin/%s/%s/delete_confirmation.html" % (app_label, opts.object_name.lower()),
+"admin/%s/delete_confirmation.html" % app_label,
+"admin/delete_confirmation.html"
+], context, context_instance=template.RequestContext(request))
+def history_view(self, request, object_id, extra_context=None):
+"The 'history' admin view for this model."
+from django.contrib.admin.models import LogEntry
+model = self.model
+opts = model._meta
+app_label = opts.app_label
+action_list = LogEntry.objects.filter(
+object_id = object_id,
+content_type__id__exact = ContentType.objects.get_for_model(model).id
+).select_related().order_by('action_time')
+# If no history was found, see whether this object even exists.
+obj = get_object_or_404(model, pk=object_id)
+context = {
+'title': _('Change history: %s') % force_unicode(obj),
+'action_list': action_list,
+'module_name': capfirst(force_unicode(opts.verbose_name_plural)),
+'object': obj,
+'root_path': self.admin_site.root_path,
+'app_label': app_label,
+}
+context.update(extra_context or {})
+return render_to_response(self.object_history_template or [
+"admin/%s/%s/object_history.html" % (app_label, opts.object_name.lower()),
+"admin/%s/object_history.html" % app_label,
+"admin/object_history.html"
+], context, context_instance=template.RequestContext(request))
+class InlineModelAdmin(BaseModelAdmin):
+"""
+Options for inline editing of ``model`` instances.
+Provide ``name`` to specify the attribute name of the ``ForeignKey`` from
+``model`` to its parent. This is required if ``model`` has more than one
+``ForeignKey`` to its parent.
+"""
+model = None
+fk_name = None
+formset = BaseInlineFormSet
+extra = 3
+max_num = 0
+template = None
+verbose_name = None
+verbose_name_plural = None
+def __init__(self, parent_model, admin_site):
+self.admin_site = admin_site
+self.parent_model = parent_model
+self.opts = self.model._meta
+super(InlineModelAdmin, self).__init__()
+if self.verbose_name is None:
+self.verbose_name = self.model._meta.verbose_name
+if self.verbose_name_plural is None:
+self.verbose_name_plural = self.model._meta.verbose_name_plural
+def _media(self):
+from django.conf import settings
+js = []
+if self.prepopulated_fields:
+js.append('js/urlify.js')
+if self.filter_vertical or self.filter_horizontal:
+js.extend(['js/SelectBox.js' , 'js/SelectFilter2.js'])
+return forms.Media(js=['%s%s' % (settings.ADMIN_MEDIA_PREFIX, url) for url in js])
+media = property(_media)
+def get_formset(self, request, obj=None, **kwargs):
+"""Returns a BaseInlineFormSet class for use in admin add/change views."""
+if self.declared_fieldsets:
+fields = flatten_fieldsets(self.declared_fieldsets)
+else:
+fields = None
+if self.exclude is None:
+exclude = []
+else:
+exclude = list(self.exclude)
+defaults = {
+"form": self.form,
+"formset": self.formset,
+"fk_name": self.fk_name,
+"fields": fields,
+"exclude": exclude + kwargs.get("exclude", []),
+"formfield_callback": self.formfield_for_dbfield,
+"extra": self.extra,
+"max_num": self.max_num,
+}
+defaults.update(kwargs)
+return inlineformset_factory(self.parent_model, self.model, **defaults)
+def get_fieldsets(self, request, obj=None):
+if self.declared_fieldsets:
+return self.declared_fieldsets
+form = self.get_formset(request).form
+return [(None, {'fields': form.base_fields.keys()})]
+class StackedInline(InlineModelAdmin):
+template = 'admin/edit_inline/stacked.html'
+class TabularInline(InlineModelAdmin):
+template = 'admin/edit_inline/tabular.html'