Commit cd848582 by Czémán Arnold

common: add CreateLimitedResourceMixin

parent f7d27476
......@@ -19,8 +19,11 @@ from sys import exc_info
import logging
from django.shortcuts import render_to_response
from django.shortcuts import render_to_response, redirect
from django.contrib import messages
from django.template import RequestContext
from django.http import JsonResponse
from django.utils.translation import ugettext_lazy as _
from .models import HumanReadableException
......@@ -59,3 +62,29 @@ def handler403(request):
resp = render_to_response("403.html", ctx)
resp.status_code = 403
return resp
class CreateLimitedResourceMixin(object):
resource_name = None
model = None
profile_attribute = None
def post(self, *args, **kwargs):
user = self.request.user
try:
limit = getattr(user.profile, self.profile_attribute)
except Exception as e:
logger.debug('No profile or %s: %s', self.profile_attribute, e)
else:
current = self.model.objects.filter(owner=user).count()
logger.debug('%s current use: %d, limit: %d',
self.resource_name, current, limit)
if current > limit:
messages.error(self.request,
_('%s limit (%d) exceeded.')
% (self.resource_name, limit))
if self.request.is_ajax():
return JsonResponse({'redirect': '/'})
else:
return redirect('/')
return super(CreateLimitedResourceMixin, self).post(*args, **kwargs)
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