Python peewee 模块，PrimaryKeyField() 实例源码

def primary_key(self, name):
        """
        Add a primary key to the model.
        This has some special cases, which is why it's not handled like all the other column types.

        :param name: Name of column.
        :return: None
        """
        pk_field = peewee.PrimaryKeyField(primary_key=True)
        self.model._meta.primary_key = pk_field
        self.model._meta.auto_increment = True
        pk_field.add_to_class(self.model, name)

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)