50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
from django.views.generic import DeleteView
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from django.http import HttpResponseRedirect
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from django.contrib import messages
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from django.db.models import Q
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class DeleteCheckView(DeleteView):
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""" Check if object actually can be deleted. Provide reasons to template
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if not.
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"""
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def delete(self, request, *args, **kwargs):
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self.object = self.get_object()
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success_url = self.get_success_url()
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reasons = self.object.getNoDeleteReasons()
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if reasons:
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# do not delete, do what get does...
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return self.get(request, *args, **kwargs)
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else:
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self.object.delete()
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messages.info(request, "Object %s has been deleted" % str(self.object))
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return HttpResponseRedirect(success_url)
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def get_context_data(self, **kwargs):
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if 'reasons' not in kwargs:
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kwargs['reasons'] = self.object.getNoDeleteReasons()
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return super(DeleteCheckView, self).get_context_data(**kwargs)
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class MntGenericMixin(object):
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def get_queryset(self):
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mnts = self.request.user.maintainer_set.all()
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q = Q(mnt_by__in=mnts)
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if hasattr(self.model, "mnt_lower"):
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q |= Q(mnt_lower__in=mnts)
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return self.model.objects.filter(q).distinct()
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def get_form_kwargs(self, *args, **kwargs):
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kwargs = super(MntGenericMixin, self).get_form_kwargs(*args, **kwargs)
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if hasattr(self.model, "mnt_lower"):
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mnts = self.request.user.maintainer_set.all()
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if not any(mnt in self.object.mnt_by.all() for mnt in mnts):
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# we are in mnt_lower
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kwargs["lower"] = True
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return kwargs
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