113 lines
3.6 KiB
Python
113 lines
3.6 KiB
Python
try:
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import json
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except ImportError:
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import simplejson as json
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from django.conf import settings
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from django.http import HttpResponseServerError, HttpResponse
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from django.core.urlresolvers import reverse
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from django.template import loader, RequestContext
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from django.template.loader import render_to_string
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from django.contrib.auth.decorators import login_required
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from django.utils.decorators import method_decorator
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from django.views.generic import (TemplateView as _TemplateView,
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RedirectView as _RedirectView,
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UpdateView as _UpdateView,
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CreateView as _CreateView,)
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from django.views.generic.detail import SingleObjectMixin
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from utils import render_to_forbitten
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FREE_TO_GO = 'free to go'
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class LoginMixin(object):
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@method_decorator(login_required)
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def dispatch(self, request, *args, **kwargs):
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return super(LoginMixin, self).dispatch(request, *args, **kwargs)
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class PermissionMixin(object):
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permission_required = FREE_TO_GO
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def dispatch(self, request, *args, **kwargs):
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if self.permission_required == FREE_TO_GO:
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has_permission = True
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else:
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has_permission = request.user.has_perm(self.permission_required)
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if has_permission:
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if request.user.is_authenticated():
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path = urlquote(request.get_full_path())
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return HttpResponseRedirect("%s?next=%s" % (settings.LOGIN_URL, path))
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else:
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return render_to_forbitten(request)
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return super(LoginMixin, self).dispatch(request, *args, **kwargs)
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class TemplateView(_TemplateView, PermissionMixin):
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pass
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class RedirectView(_RedirectView, PermissionMixin):
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permanent = False
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allow_ajax = False
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def pre_redirect(self, request, *args, **kwargs):
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pass
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def pre_post_redirect(self, request, *args, **kwargs):
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pass
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def get(self, request, *args, **kwargs):
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if request.method == 'GET':
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self.pre_redirect( request, *args, **kwargs)
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elif request.method == 'POST':
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self.pre_post_redirect(request, *args, **kwargs)
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if self.request.is_ajax() and self.allow_ajax:
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return HttpResponse(json.dumps(self.get_ajax_context(**kwargs)))
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return super(RedirectView, self).get(request, *args, **kwargs)
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def get_redirect_url(self, **kwargs):
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return reverse(super(RedirectView, self).get_redirect_url(**kwargs))
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def get_ajax_context(self, **kwargs):
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return {}
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class UpdateView(_UpdateView, PermissionMixin):
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def get_success_url(self):
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if 'apply' in self.request.POST:
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return ''
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return reverse(super(UpdateView, self).get_success_url())
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class CreateView(_CreateView, PermissionMixin):
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def get_success_url(self):
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if 'apply' in self.request.POST:
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return reverse('item_edit', args=[self.object.id])
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return reverse(super(CreateView, self).get_success_url())
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class DeleteView(RedirectView, SingleObjectMixin):
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def pre_redirect(self, request, *args, **kwargs):
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self.object = self.get_object()
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self.confirm_form(request, self.object)
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def pre_post_redirect(self, request, *args, **kwargs):
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pass
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def server_error(request, template_name='500.html'):
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"""
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500 error handler.
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Templates: `500.html`
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Context:
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MEDIA_URL
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Path of static media (e.g. "media.example.org")
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"""
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t = loader.get_template("500.html") # You need to create a 500.html template.
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return HttpResponseServerError(render_to_string('500.html', context_instance=RequestContext(request)))
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