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from django.db import transaction
from django.conf import settings
from django.contrib import admin
from django.contrib.auth.forms import (UserCreationForm, UserChangeForm,
AdminPasswordChangeForm)
from django.contrib.auth.models import User, Group
from django.contrib import messages
from django.core.exceptions import PermissionDenied
from django.http import HttpResponseRedirect, Http404
from django.shortcuts import get_object_or_404
from django.template.response import TemplateResponse
from django.utils.html import escape
from django.utils.decorators import method_decorator
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext, ugettext_lazy as _
from django.views.decorators.csrf import csrf_protect
from django.views.decorators.debug import sensitive_post_parameters
csrf_protect_m = method_decorator(csrf_protect)
class GroupAdmin(admin.ModelAdmin):
search_fields = ('name',)
ordering = ('name',)
filter_horizontal = ('permissions',)
def formfield_for_manytomany(self, db_field, request=None, **kwargs):
if db_field.name == 'permissions':
qs = kwargs.get('queryset', db_field.rel.to.objects)
# Avoid a major performance hit resolving permission names which
# triggers a content_type load:
kwargs['queryset'] = qs.select_related('content_type')
return super(GroupAdmin, self).formfield_for_manytomany(
db_field, request=request, **kwargs)
class UserAdmin(admin.ModelAdmin):
add_form_template = 'admin/auth/user/add_form.html'
change_user_password_template = None
fieldsets = (
(None, {'fields': ('username', 'password')}),
(_('Personal info'), {'fields': ('first_name', 'last_name', 'email')}),
(_('Permissions'), {'fields': ('is_active', 'is_staff', 'is_superuser',
'groups', 'user_permissions')}),
(_('Important dates'), {'fields': ('last_login', 'date_joined')}),
)
add_fieldsets = (
(None, {
'classes': ('wide',),
'fields': ('username', 'password1', 'password2')}
),
)
form = UserChangeForm
add_form = UserCreationForm
change_password_form = AdminPasswordChangeForm
list_display = ('username', 'email', 'first_name', 'last_name', 'is_staff')
list_filter = ('is_staff', 'is_superuser', 'is_active')
search_fields = ('username', 'first_name', 'last_name', 'email')
ordering = ('username',)
filter_horizontal = ('user_permissions',)
def get_fieldsets(self, request, obj=None):
if not obj:
return self.add_fieldsets
return super(UserAdmin, self).get_fieldsets(request, obj)
def get_form(self, request, obj=None, **kwargs):
"""
Use special form during user creation
"""
defaults = {}
if obj is None:
defaults.update({
'form': self.add_form,
'fields': admin.util.flatten_fieldsets(self.add_fieldsets),
})
defaults.update(kwargs)
return super(UserAdmin, self).get_form(request, obj, **defaults)
def get_urls(self):
from django.conf.urls import patterns
return patterns('',
(r'^(\d+)/password/$',
self.admin_site.admin_view(self.user_change_password))
) + super(UserAdmin, self).get_urls()
@sensitive_post_parameters()
@csrf_protect_m
@transaction.commit_on_success
def add_view(self, request, form_url='', extra_context=None):
# It's an error for a user to have add permission but NOT change
# permission for users. If we allowed such users to add users, they
# could create superusers, which would mean they would essentially have
# the permission to change users. To avoid the problem entirely, we
# disallow users from adding users if they don't have change
# permission.
if not self.has_change_permission(request):
if self.has_add_permission(request) and settings.DEBUG:
# Raise Http404 in debug mode so that the user gets a helpful
# error message.
raise Http404(
'Your user does not have the "Change user" permission. In '
'order to add users, Django requires that your user '
'account have both the "Add user" and "Change user" '
'permissions set.')
raise PermissionDenied
if extra_context is None:
extra_context = {}
defaults = {
'auto_populated_fields': (),
'username_help_text': self.model._meta.get_field('username').help_text,
}
extra_context.update(defaults)
return super(UserAdmin, self).add_view(request, form_url,
extra_context)
@sensitive_post_parameters()
def user_change_password(self, request, id, form_url=''):
if not self.has_change_permission(request):
raise PermissionDenied
user = get_object_or_404(self.queryset(request), pk=id)
if request.method == 'POST':
form = self.change_password_form(user, request.POST)
if form.is_valid():
form.save()
msg = ugettext('Password changed successfully.')
messages.success(request, msg)
return HttpResponseRedirect('..')
else:
form = self.change_password_form(user)
fieldsets = [(None, {'fields': form.base_fields.keys()})]
adminForm = admin.helpers.AdminForm(form, fieldsets, {})
context = {
'title': _('Change password: %s') % escape(user.username),
'adminForm': adminForm,
'form_url': form_url,
'form': form,
'is_popup': '_popup' in request.REQUEST,
'add': True,
'change': False,
'has_delete_permission': False,
'has_change_permission': True,
'has_absolute_url': False,
'opts': self.model._meta,
'original': user,
'save_as': False,
'show_save': True,
}
return TemplateResponse(request, [
self.change_user_password_template or
'admin/auth/user/change_password.html'
], context, current_app=self.admin_site.name)
def response_add(self, request, obj, post_url_continue='../%s/'):
"""
Determines the HttpResponse for the add_view stage. It mostly defers to
its superclass implementation but is customized because the User model
has a slightly different workflow.
"""
# We should allow further modification of the user just added i.e. the
# 'Save' button should behave like the 'Save and continue editing'
# button except in two scenarios:
# * The user has pressed the 'Save and add another' button
# * We are adding a user in a popup
if '_addanother' not in request.POST and '_popup' not in request.POST:
request.POST['_continue'] = 1
return super(UserAdmin, self).response_add(request, obj,
post_url_continue)
admin.site.register(Group, GroupAdmin)
admin.site.register(User, UserAdmin)
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