django-orchestra/orchestra/apps/users/roles/admin.py

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from django.contrib import messages
from django.contrib.admin.util import unquote, get_deleted_objects
from django.contrib.admin.templatetags.admin_urls import add_preserved_filters
from django.core.urlresolvers import reverse
from django.db import router
from django.http import Http404, HttpResponseRedirect
from django.template.response import TemplateResponse
from django.shortcuts import redirect
from django.utils.encoding import force_text
from django.utils.html import escape
from django.utils.translation import ugettext, ugettext_lazy as _
from orchestra.admin.utils import get_modeladmin
from .forms import role_form_factory
from ..models import User
class RoleAdmin(object):
model = None
name = ''
url_name = ''
form = None
def __init__(self, user=None):
self.user = user
@property
def exists(self):
try:
return getattr(self.user, self.name)
except self.model.DoesNotExist:
return False
def get_user(self, request, object_id):
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try:
user = User.objects.get(pk=unquote(object_id))
except User.DoesNotExist:
opts = self.model._meta
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raise Http404(
_('%(name)s object with primary key %(key)r does not exist.') %
{'name': force_text(opts.verbose_name), 'key': escape(object_id)}
)
return user
def change_view(self, request, object_id):
modeladmin = get_modeladmin(User)
user = self.get_user(request, object_id)
self.user = user
obj = None
exists = self.exists
if exists:
obj = getattr(user, self.name)
form_class = self.form if self.form else role_form_factory(self)
form = form_class(instance=obj)
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opts = User._meta
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app_label = opts.app_label
title = _("Add %s for user %s" % (self.name, user))
action = _("Create")
# User has submitted the form
if request.method == 'POST':
form = form_class(request.POST, instance=obj)
form.user = user
if form.is_valid():
obj = form.save()
context = {
'name': obj._meta.verbose_name,
'obj': obj,
'action': _("saved" if exists else "created")
}
modeladmin.log_change(request, request.user, "%s saved" % self.name.capitalize())
msg = _('The role %(name)s for user "%(obj)s" was %(action)s successfully.') % context
modeladmin.message_user(request, msg, messages.SUCCESS)
url = 'admin:%s_%s_change' % (opts.app_label, opts.module_name)
if not "_continue" in request.POST:
return redirect(url, object_id)
exists = True
if exists:
title = _("Change %s %s settings" % (user, self.name))
action = _("Save")
form = form_class(instance=obj)
context = {
'title': title,
'opts': opts,
'app_label': app_label,
'form': form,
'action': action,
'role': self,
'roles': [ role(user=user) for role in modeladmin.roles ],
'media': modeladmin.media
}
template = 'admin/users/user/role.html'
app = modeladmin.admin_site.name
return TemplateResponse(request, template, context, current_app=app)
def delete_view(self, request, object_id):
"The 'delete' admin view for this model."
opts = self.model._meta
app_label = opts.app_label
modeladmin = get_modeladmin(User)
user = self.get_user(request, object_id)
obj = getattr(user, self.name)
using = router.db_for_write(self.model)
# Populate deleted_objects, a data structure of all related objects that
# will also be deleted.
(deleted_objects, perms_needed, protected) = get_deleted_objects(
[obj], opts, request.user, modeladmin.admin_site, using)
if request.POST: # The user has already confirmed the deletion.
if perms_needed:
raise PermissionDenied
obj_display = force_text(obj)
modeladmin.log_deletion(request, obj, obj_display)
modeladmin.delete_model(request, obj)
post_url = reverse('admin:users_user_change', args=(user.pk,))
preserved_filters = modeladmin.get_preserved_filters(request)
post_url = add_preserved_filters(
{'preserved_filters': preserved_filters, 'opts': opts}, post_url
)
return HttpResponseRedirect(post_url)
object_name = force_text(opts.verbose_name)
if perms_needed or protected:
title = _("Cannot delete %(name)s") % {"name": object_name}
else:
title = _("Are you sure?")
context = {
"title": title,
"object_name": object_name,
"object": obj,
"deleted_objects": deleted_objects,
"perms_lacking": perms_needed,
"protected": protected,
"opts": opts,
"app_label": app_label,
'preserved_filters': modeladmin.get_preserved_filters(request),
'role': self,
}
return TemplateResponse(request, 'admin/users/user/delete_role.html',
context, current_app=modeladmin.admin_site.name)