Remove stop parameter from home_settings and site_settings views. This is something Sverre didn't mean to commit :-) Add missing params description to the models Base class docs.
Patch by: Pawel Solyga
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'