login page

Lib/site-packages/django/contrib/admin/views/autocomplete.py

@@ -0,0 +1,51 @@
+from django.http import Http404, JsonResponse
+from django.views.generic.list import BaseListView
+
+
+class AutocompleteJsonView(BaseListView):
+    """Handle AutocompleteWidget's AJAX requests for data."""
+    paginate_by = 20
+    model_admin = None
+
+    def get(self, request, *args, **kwargs):
+        """
+        Return a JsonResponse with search results of the form:
+        {
+            results: [{id: "123" text: "foo"}],
+            pagination: {more: true}
+        }
+        """
+        if not self.model_admin.get_search_fields(request):
+            raise Http404(
+                '%s must have search_fields for the autocomplete_view.' %
+                type(self.model_admin).__name__
+            )
+        if not self.has_perm(request):
+            return JsonResponse({'error': '403 Forbidden'}, status=403)
+
+        self.term = request.GET.get('term', '')
+        self.object_list = self.get_queryset()
+        context = self.get_context_data()
+        return JsonResponse({
+            'results': [
+                {'id': str(obj.pk), 'text': str(obj)}
+                for obj in context['object_list']
+            ],
+            'pagination': {'more': context['page_obj'].has_next()},
+        })
+
+    def get_paginator(self, *args, **kwargs):
+        """Use the ModelAdmin's paginator."""
+        return self.model_admin.get_paginator(self.request, *args, **kwargs)
+
+    def get_queryset(self):
+        """Return queryset based on ModelAdmin.get_search_results()."""
+        qs = self.model_admin.get_queryset(self.request)
+        qs, search_use_distinct = self.model_admin.get_search_results(self.request, qs, self.term)
+        if search_use_distinct:
+            qs = qs.distinct()
+        return qs
+
+    def has_perm(self, request, obj=None):
+        """Check if user has permission to access the related model."""
+        return self.model_admin.has_view_permission(request, obj=obj)