Python peewee 模块，DecimalField() 实例源码

def test_change_decimal_precision(self):
    class SomeModel(pw.Model):
      some_field = pw.DecimalField(max_digits=4, decimal_places=0)
      class Meta:
        database = self.db
    self.evolve_and_check_noop()
    model = SomeModel.create(some_field=1234)
    self.assertEqual(model.some_field, 1234)
    peeweedbevolve.clear()
    class SomeModel(pw.Model):
      some_field = pw.DecimalField(max_digits=8, decimal_places=2)
      class Meta:
        database = self.db
    self.evolve_and_check_noop()
    self.assertEqual(SomeModel.select().first().some_field, 1234)
    model.some_field = 123456.78
    model.save()
    self.assertEqual(SomeModel.select().first().some_field, decimal.Decimal('123456.78'))

def test_change_column_type_float_decimal(self):
    class SomeModel(pw.Model):
      some_field = pw.FloatField(default=8)
      class Meta:
        database = self.db
    self.evolve_and_check_noop()
    model = SomeModel.create()
    self.assertEqual(model.some_field, 8)
    peeweedbevolve.clear()
    class SomeModel(pw.Model):
      some_field = pw.DecimalField(default=8)
      class Meta:
        database = self.db
    self.evolve_and_check_noop()
    self.assertEqual(SomeModel.select().first().some_field, 8)

def test_column_aliases():
    tc = TableCreator('awesome')
    tc.bare('col_bare')
    tc.biginteger('col_biginteger')
    tc.binary('col_binary')
    tc.blob('col_blob')
    tc.bool('col_bool')
    tc.char('col_char')
    tc.date('col_date')
    tc.datetime('col_datetime')
    tc.decimal('col_decimal')
    tc.double('col_double')
    tc.fixed('col_fixed')
    tc.float('col_float')
    tc.int('col_int')
    tc.integer('col_integer')
    tc.smallint('col_smallint')
    tc.smallinteger('col_smallinteger')
    tc.text('col_text')
    tc.time('col_time')
    tc.uuid('col_uuid')

    assert isinstance(tc.model.col_bare, peewee.BareField)
    assert isinstance(tc.model.col_biginteger, peewee.BigIntegerField)
    assert isinstance(tc.model.col_binary, peewee.BlobField)
    assert isinstance(tc.model.col_blob, peewee.BlobField)
    assert isinstance(tc.model.col_bool, peewee.BooleanField)
    assert isinstance(tc.model.col_char, peewee.CharField)
    assert isinstance(tc.model.col_date, peewee.DateField)
    assert isinstance(tc.model.col_datetime, peewee.DateTimeField)
    assert isinstance(tc.model.col_decimal, peewee.DecimalField)
    assert isinstance(tc.model.col_double, peewee.DoubleField)
    assert isinstance(tc.model.col_fixed, peewee.CharField)
    assert isinstance(tc.model.col_float, peewee.FloatField)
    assert isinstance(tc.model.col_int, peewee.IntegerField)
    assert isinstance(tc.model.col_integer, peewee.IntegerField)
    assert isinstance(tc.model.col_smallint, peewee.SmallIntegerField)
    assert isinstance(tc.model.col_smallinteger, peewee.SmallIntegerField)
    assert isinstance(tc.model.col_text, peewee.TextField)
    assert isinstance(tc.model.col_time, peewee.TimeField)
    assert isinstance(tc.model.col_uuid, peewee.UUIDField)

def test_column():
    tc = TableCreator('awesome')
    tc.primary_key('id')
    tc.column('bare', 'col_bare')
    tc.column('biginteger', 'col_biginteger')
    tc.column('binary', 'col_binary')
    tc.column('blob', 'col_blob')
    tc.column('bool', 'col_bool')
    tc.column('char', 'col_char')
    tc.column('date', 'col_date')
    tc.column('datetime', 'col_datetime')
    tc.column('decimal', 'col_decimal')
    tc.column('double', 'col_double')
    tc.column('fixed', 'col_fixed')
    tc.column('float', 'col_float')
    tc.column('int', 'col_int')
    tc.column('integer', 'col_integer')
    tc.column('smallint', 'col_smallint')
    tc.column('smallinteger', 'col_smallinteger')
    tc.column('text', 'col_text')
    tc.column('time', 'col_time')
    tc.column('uuid', 'col_uuid')

    assert isinstance(tc.model.id, peewee.PrimaryKeyField)
    assert isinstance(tc.model.col_bare, peewee.BareField)
    assert isinstance(tc.model.col_biginteger, peewee.BigIntegerField)
    assert isinstance(tc.model.col_binary, peewee.BlobField)
    assert isinstance(tc.model.col_blob, peewee.BlobField)
    assert isinstance(tc.model.col_bool, peewee.BooleanField)
    assert isinstance(tc.model.col_char, peewee.CharField)
    assert isinstance(tc.model.col_date, peewee.DateField)
    assert isinstance(tc.model.col_datetime, peewee.DateTimeField)
    assert isinstance(tc.model.col_decimal, peewee.DecimalField)
    assert isinstance(tc.model.col_double, peewee.DoubleField)
    assert isinstance(tc.model.col_fixed, peewee.CharField)
    assert isinstance(tc.model.col_float, peewee.FloatField)
    assert isinstance(tc.model.col_int, peewee.IntegerField)
    assert isinstance(tc.model.col_integer, peewee.IntegerField)
    assert isinstance(tc.model.col_smallint, peewee.SmallIntegerField)
    assert isinstance(tc.model.col_smallinteger, peewee.SmallIntegerField)
    assert isinstance(tc.model.col_text, peewee.TextField)
    assert isinstance(tc.model.col_time, peewee.TimeField)
    assert isinstance(tc.model.col_uuid, peewee.UUIDField)