wiki-eleves/wiki_groups/views.py
2021-01-06 20:54:45 +01:00

33 lines
1,003 B
Python

from django.http import HttpResponse
from django.views.generic import ListView
from wiki_groups.models import WikiGroup
def dot_graph(request):
response = HttpResponse(content_type="text/vnd.graphviz")
response["Content-Disposition"] = 'attachment; filename="groups.dot"'
response.write("digraph {\n")
nodes = WikiGroup.objects.values_list("id", "django_group__name")
edges = WikiGroup.includes_groups.through.objects.values_list(
"to_wikigroup", "from_wikigroup"
)
for id, name in nodes:
response.write(' {} ["label"="{}"];\n'.format(id, name))
for u, v in edges:
response.write(" {} -> {};\n".format(u, v))
response.write("}\n")
return response
class GroupList(ListView):
template_name = "wiki_groups/list.html"
model = WikiGroup
context_object_name = "groups"
def get_queryset(self):
return WikiGroup.objects.values_list("id", "django_group__name").order_by(
"django_group__name"
)