def render(self, context):
# retreiving queryset from admin changelist
cl = self.cl.resolve(context)
objects = cl.result_list
# getting request
request = context['request']
# getting stats callables
callables = cl.model_admin.get_stats(request, objects)
# getting aggregates (to avoid too many db queries)
aggregates = models.collect_aggregates(callables)
# hit the db for aggregated data
data = models.aggregate(objects, aggregates)
# calling all stats callbales
context[self.varname] = [i(request, objects, data) for i in callables]
return u''
def render(self, context):
# retreiving queryset from admin changelist
cl = self.cl.resolve(context)
objects = cl.result_list
# getting request
request = context['request']
# getting stats callables
callables = cl.model_admin.get_stats(request, objects)
# getting aggregates (to avoid too many db queries)
aggregates = models.collect_aggregates(callables)
# hit the db for aggregated data
data = models.aggregate(objects, aggregates)
# calling all stats callbales
context[self.varname] = [i(request, objects, data) for i in callables]
return u''
def test_aggregates(self):
stats = avg, sum_, min_, max_, dummy = self.get_stats()
aggregates = models.collect_aggregates(stats)
self.assertEqual([type(i) for i in aggregates],
[django_models.Avg, django_models.Sum, django_models.Max])
queryset = self.all()
data = models.aggregate(queryset, aggregates)
self.assertEqual(data['value__avg'], 6.0)
self.assertEqual(data['value__sum'], 30)
self.assertEqual(data['value__max'], 13)
expected_results = [
(u'Average value', 6.0),
(u'Total value', 30),
(u'Min value', 1),
(u'Max value', 13),
('answer', 42),
]
results = [i(None, queryset, data) for i in stats]
self.assertEqual([tuple(i) for i in results], expected_results)
