peewee 对 mysql 类型支持问题，并不支持bit

这个问题是当时想当然了 看到python BooleanField(default=False) 便认为 对应 mysql的bit

出现问题

mysql实际字段存储值为0,但 peewee orm 后的结果却是 True.

查官方文档

http://peewee.readthedocs.io/en/latest/peewee/models.html

Field types table¶

Field Type	Sqlite	Postgresql	MySQL
CharField	varchar	varchar	varchar
FixedCharField	char	char	char
TextField	text	text	longtext
DateTimeField	datetime	timestamp	datetime
IntegerField	integer	integer	integer
BooleanField	integer	boolean	bool
FloatField	real	real	real
DoubleField	real	double precision	double precision
BigIntegerField	integer	bigint	bigint
SmallIntegerField	integer	smallint	smallint
DecimalField	decimal	numeric	numeric
PrimaryKeyField	integer	serial	integer
ForeignKeyField	integer	integer	integer
DateField	date	date	date
TimeField	time	time	time
TimestampField	integer	integer	integer
BlobField	blob	bytea	blob
UUIDField	text	uuid	varchar(40)
BareField	untyped	not supported	not supported

Note

Don’t see the field you’re looking for in the above table? It’s easy to create custom field types and use them with your models.

• Creating a custom field
• Database, particularly the fields parameter.

peewee 默认不支持 mysql 的 bit类型

BooleanField 对应 mysql的bool，而这个 bool 在 mysql 里就是 tinyint

处理方式，把 mysql 的字段类型改为 bool

或自定义映射类

import uuid

class UUIDField(Field):
    db_field = 'uuid'

    def db_value(self, value):
        return str(value) # convert UUID to str

    def python_value(self, value):
        return uuid.UUID(value) # convert str to UUID

解决