aggregate_sum/average + unit tests
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@@ -2706,26 +2706,58 @@ class QuerySetTest(unittest.TestCase):
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avg = float(sum(ages)) / (len(ages) + 1) # take into account the 0
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self.assertAlmostEqual(int(self.Person.objects.average('age')), avg)
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self.assertAlmostEqual(
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int(self.Person.objects.aggregate_average('age')), avg
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)
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self.Person(name='ageless person').save()
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self.assertEqual(int(self.Person.objects.average('age')), avg)
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self.assertEqual(
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int(self.Person.objects.aggregate_average('age')), avg
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)
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# dot notation
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self.Person(
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name='person meta', person_meta=self.PersonMeta(weight=0)).save()
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self.assertAlmostEqual(
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int(self.Person.objects.average('person_meta.weight')), 0)
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self.assertAlmostEqual(
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int(self.Person.objects.aggregate_average('person_meta.weight')),
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0
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)
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for i, weight in enumerate(ages):
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self.Person(
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name='test meta%i', person_meta=self.PersonMeta(weight=weight)).save()
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self.assertAlmostEqual(
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int(self.Person.objects.average('person_meta.weight')), avg)
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int(self.Person.objects.average('person_meta.weight')), avg
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)
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self.assertAlmostEqual(
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int(self.Person.objects.aggregate_average('person_meta.weight')),
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avg
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)
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self.Person(name='test meta none').save()
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self.assertEqual(
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int(self.Person.objects.average('person_meta.weight')), avg)
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int(self.Person.objects.average('person_meta.weight')), avg
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)
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self.assertEqual(
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int(self.Person.objects.aggregate_average('person_meta.weight')),
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avg
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)
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# test summing over a filtered queryset
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over_50 = [a for a in ages if a >= 50]
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avg = float(sum(over_50)) / len(over_50)
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self.assertEqual(
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self.Person.objects.filter(age__gte=50).average('age'),
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avg
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)
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self.assertEqual(
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self.Person.objects.filter(age__gte=50).aggregate_average('age'),
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avg
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)
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def test_sum(self):
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"""Ensure that field can be summed over correctly.
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@@ -2734,20 +2766,44 @@ class QuerySetTest(unittest.TestCase):
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for i, age in enumerate(ages):
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self.Person(name='test%s' % i, age=age).save()
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self.assertEqual(int(self.Person.objects.sum('age')), sum(ages))
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self.assertEqual(self.Person.objects.sum('age'), sum(ages))
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self.assertEqual(
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self.Person.objects.aggregate_sum('age'), sum(ages)
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)
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self.Person(name='ageless person').save()
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self.assertEqual(int(self.Person.objects.sum('age')), sum(ages))
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self.assertEqual(self.Person.objects.sum('age'), sum(ages))
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self.assertEqual(
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self.Person.objects.aggregate_sum('age'), sum(ages)
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)
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for i, age in enumerate(ages):
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self.Person(name='test meta%s' %
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i, person_meta=self.PersonMeta(weight=age)).save()
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self.assertEqual(
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int(self.Person.objects.sum('person_meta.weight')), sum(ages))
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self.Person.objects.sum('person_meta.weight'), sum(ages)
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)
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self.assertEqual(
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self.Person.objects.aggregate_sum('person_meta.weight'),
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sum(ages)
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)
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self.Person(name='weightless person').save()
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self.assertEqual(int(self.Person.objects.sum('age')), sum(ages))
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self.assertEqual(self.Person.objects.sum('age'), sum(ages))
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self.assertEqual(
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self.Person.objects.aggregate_sum('age'), sum(ages)
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)
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# test summing over a filtered queryset
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self.assertEqual(
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self.Person.objects.filter(age__gte=50).sum('age'),
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sum([a for a in ages if a >= 50])
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)
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self.assertEqual(
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self.Person.objects.filter(age__gte=50).aggregate_sum('age'),
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sum([a for a in ages if a >= 50])
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)
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def test_embedded_average(self):
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class Pay(EmbeddedDocument):
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