Produits Entr'ouvert » Passerelle

# passerelle - uniform access to multiple data sources and services

# Copyright (C) 2019 Entr'ouvert

#

# This program is free software: you can redistribute it and/or modify it

# under the terms of the GNU Affero General Public License as published

# by the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU Affero General Public License for more details.

#

# You should have received a copy of the GNU Affero General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from django.utils import functional

class ResourceChildViewMixin(object):

    '''Mixin to help implementing view for child objects of resource objets.'''

    @property

    def resource_class(self):

        field = self.model._meta.get_field('resource')

        return field.related_model

    @functional.cached_property

    def resource(self):

        return self.resource_class.objects.get(slug=self.kwargs['slug'])

    def get_queryset(self):

        qs = super(ResourceChildViewMixin, self).get_queryset()

        return qs.filter(resource=self.resource)

    def get_success_url(self):

        return self.resource.get_absolute_url()