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3a0fe942dd
The query used a construct of qs.annotate().values().aggregate() where
the first annotate used an F-object reference and the values() and
aggregate() calls referenced that F-object.
Also made sure the inner query's select clause is as simple as possible,
and made sure .values().distinct().aggreate() works correctly.
Backport of fb146193c4 from master
76 lines
1.8 KiB
Python
76 lines
1.8 KiB
Python
"""
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Tests for F() query expression syntax.
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"""
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from __future__ import unicode_literals
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from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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@python_2_unicode_compatible
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class Employee(models.Model):
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firstname = models.CharField(max_length=50)
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lastname = models.CharField(max_length=50)
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salary = models.IntegerField(blank=True, null=True)
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def __str__(self):
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return '%s %s' % (self.firstname, self.lastname)
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@python_2_unicode_compatible
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class Company(models.Model):
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name = models.CharField(max_length=100)
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num_employees = models.PositiveIntegerField()
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num_chairs = models.PositiveIntegerField()
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ceo = models.ForeignKey(
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Employee,
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related_name='company_ceo_set')
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point_of_contact = models.ForeignKey(
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Employee,
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related_name='company_point_of_contact_set',
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null=True)
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def __str__(self):
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return self.name
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@python_2_unicode_compatible
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class Number(models.Model):
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integer = models.BigIntegerField(db_column='the_integer')
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float = models.FloatField(null=True, db_column='the_float')
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def __str__(self):
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return '%i, %.3f' % (self.integer, self.float)
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class Experiment(models.Model):
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name = models.CharField(max_length=24)
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assigned = models.DateField()
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completed = models.DateField()
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estimated_time = models.DurationField()
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start = models.DateTimeField()
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end = models.DateTimeField()
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class Meta:
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ordering = ('name',)
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def duration(self):
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return self.end - self.start
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@python_2_unicode_compatible
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class Time(models.Model):
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time = models.TimeField(null=True)
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def __str__(self):
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return "%s" % self.time
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@python_2_unicode_compatible
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class UUID(models.Model):
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uuid = models.UUIDField(null=True)
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def __str__(self):
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return "%s" % self.uuid
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