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Merged regressiontests and modeltests into the test root.
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Florian Apolloner
parent
b3d2ccb5bf
commit
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1050 changed files with 0 additions and 0 deletions
0
tests/custom_pk/__init__.py
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0
tests/custom_pk/__init__.py
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57
tests/custom_pk/fields.py
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57
tests/custom_pk/fields.py
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import random
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import string
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from django.db import models
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from django.utils import six
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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 MyWrapper(object):
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def __init__(self, value):
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self.value = value
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def __repr__(self):
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return "<%s: %s>" % (self.__class__.__name__, self.value)
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def __str__(self):
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return self.value
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def __eq__(self, other):
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if isinstance(other, self.__class__):
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return self.value == other.value
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return self.value == other
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class MyAutoField(six.with_metaclass(models.SubfieldBase, models.CharField)):
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def __init__(self, *args, **kwargs):
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kwargs['max_length'] = 10
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super(MyAutoField, self).__init__(*args, **kwargs)
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def pre_save(self, instance, add):
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value = getattr(instance, self.attname, None)
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if not value:
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value = MyWrapper(''.join(random.sample(string.ascii_lowercase, 10)))
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setattr(instance, self.attname, value)
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return value
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def to_python(self, value):
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if not value:
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return
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if not isinstance(value, MyWrapper):
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value = MyWrapper(value)
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return value
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def get_db_prep_save(self, value, connection):
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if not value:
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return
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if isinstance(value, MyWrapper):
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return six.text_type(value)
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return value
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def get_db_prep_value(self, value, connection, prepared=False):
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if not value:
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return
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if isinstance(value, MyWrapper):
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return six.text_type(value)
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return value
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48
tests/custom_pk/models.py
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48
tests/custom_pk/models.py
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# -*- coding: utf-8 -*-
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"""
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14. Using a custom primary key
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By default, Django adds an ``"id"`` field to each model. But you can override
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this behavior by explicitly adding ``primary_key=True`` to a field.
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"""
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from __future__ import absolute_import, unicode_literals
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from django.db import models
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from .fields import MyAutoField
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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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employee_code = models.IntegerField(primary_key=True, db_column = 'code')
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first_name = models.CharField(max_length=20)
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last_name = models.CharField(max_length=20)
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class Meta:
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ordering = ('last_name', 'first_name')
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def __str__(self):
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return "%s %s" % (self.first_name, self.last_name)
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@python_2_unicode_compatible
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class Business(models.Model):
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name = models.CharField(max_length=20, primary_key=True)
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employees = models.ManyToManyField(Employee)
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class Meta:
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verbose_name_plural = 'businesses'
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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 Bar(models.Model):
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id = MyAutoField(primary_key=True, db_index=True)
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def __str__(self):
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return repr(self.pk)
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class Foo(models.Model):
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bar = models.ForeignKey(Bar)
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182
tests/custom_pk/tests.py
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182
tests/custom_pk/tests.py
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# -*- coding: utf-8 -*-
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from __future__ import absolute_import, unicode_literals
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from django.db import transaction, IntegrityError
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from django.test import TestCase, skipIfDBFeature
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from django.utils import six
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from .models import Employee, Business, Bar, Foo
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class CustomPKTests(TestCase):
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def test_custom_pk(self):
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dan = Employee.objects.create(
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employee_code=123, first_name="Dan", last_name="Jones"
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)
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self.assertQuerysetEqual(
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Employee.objects.all(), [
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"Dan Jones",
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],
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six.text_type
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)
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fran = Employee.objects.create(
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employee_code=456, first_name="Fran", last_name="Bones"
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)
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self.assertQuerysetEqual(
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Employee.objects.all(), [
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"Fran Bones",
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"Dan Jones",
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],
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six.text_type
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)
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self.assertEqual(Employee.objects.get(pk=123), dan)
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self.assertEqual(Employee.objects.get(pk=456), fran)
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self.assertRaises(Employee.DoesNotExist,
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lambda: Employee.objects.get(pk=42)
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)
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# Use the name of the primary key, rather than pk.
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self.assertEqual(Employee.objects.get(employee_code=123), dan)
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# pk can be used as a substitute for the primary key.
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self.assertQuerysetEqual(
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Employee.objects.filter(pk__in=[123, 456]), [
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"Fran Bones",
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"Dan Jones",
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],
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six.text_type
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)
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# The primary key can be accessed via the pk property on the model.
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e = Employee.objects.get(pk=123)
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self.assertEqual(e.pk, 123)
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# Or we can use the real attribute name for the primary key:
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self.assertEqual(e.employee_code, 123)
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# Fran got married and changed her last name.
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fran = Employee.objects.get(pk=456)
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fran.last_name = "Jones"
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fran.save()
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self.assertQuerysetEqual(
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Employee.objects.filter(last_name="Jones"), [
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"Dan Jones",
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"Fran Jones",
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],
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six.text_type
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)
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emps = Employee.objects.in_bulk([123, 456])
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self.assertEqual(emps[123], dan)
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b = Business.objects.create(name="Sears")
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b.employees.add(dan, fran)
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self.assertQuerysetEqual(
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b.employees.all(), [
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"Dan Jones",
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"Fran Jones",
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],
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six.text_type
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)
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self.assertQuerysetEqual(
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fran.business_set.all(), [
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"Sears",
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],
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lambda b: b.name
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)
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self.assertEqual(Business.objects.in_bulk(["Sears"]), {
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"Sears": b,
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})
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self.assertQuerysetEqual(
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Business.objects.filter(name="Sears"), [
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"Sears"
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],
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lambda b: b.name
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)
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self.assertQuerysetEqual(
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Business.objects.filter(pk="Sears"), [
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"Sears",
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],
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lambda b: b.name
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)
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# Queries across tables, involving primary key
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self.assertQuerysetEqual(
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Employee.objects.filter(business__name="Sears"), [
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"Dan Jones",
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"Fran Jones",
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],
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six.text_type,
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)
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self.assertQuerysetEqual(
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Employee.objects.filter(business__pk="Sears"), [
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"Dan Jones",
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"Fran Jones",
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],
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six.text_type,
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)
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self.assertQuerysetEqual(
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Business.objects.filter(employees__employee_code=123), [
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"Sears",
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],
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lambda b: b.name
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)
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self.assertQuerysetEqual(
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Business.objects.filter(employees__pk=123), [
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"Sears",
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],
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lambda b: b.name,
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)
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self.assertQuerysetEqual(
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Business.objects.filter(employees__first_name__startswith="Fran"), [
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"Sears",
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],
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lambda b: b.name
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)
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def test_unicode_pk(self):
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# Primary key may be unicode string
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bus = Business.objects.create(name='jaźń')
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def test_unique_pk(self):
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# The primary key must also obviously be unique, so trying to create a
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# new object with the same primary key will fail.
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e = Employee.objects.create(
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employee_code=123, first_name="Frank", last_name="Jones"
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)
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sid = transaction.savepoint()
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self.assertRaises(IntegrityError,
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Employee.objects.create, employee_code=123, first_name="Fred", last_name="Jones"
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)
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transaction.savepoint_rollback(sid)
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def test_custom_field_pk(self):
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# Regression for #10785 -- Custom fields can be used for primary keys.
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new_bar = Bar.objects.create()
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new_foo = Foo.objects.create(bar=new_bar)
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f = Foo.objects.get(bar=new_bar.pk)
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self.assertEqual(f, new_foo)
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self.assertEqual(f.bar, new_bar)
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f = Foo.objects.get(bar=new_bar)
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self.assertEqual(f, new_foo),
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self.assertEqual(f.bar, new_bar)
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# SQLite lets objects be saved with an empty primary key, even though an
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# integer is expected. So we can't check for an error being raised in that
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# case for SQLite. Remove it from the suite for this next bit.
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@skipIfDBFeature('supports_unspecified_pk')
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def test_required_pk(self):
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# The primary key must be specified, so an error is raised if you
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# try to create an object without it.
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sid = transaction.savepoint()
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self.assertRaises(IntegrityError,
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Employee.objects.create, first_name="Tom", last_name="Smith"
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)
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transaction.savepoint_rollback(sid)
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