flask 数据库迁移 could not assemble any primary key columns for mapped table

flsak + could not assemble any primary key columns for mapped table在进行flsak项目迁移时在进行flsak项目迁移时sqlalchemy.exc.ArgumentError: Mapper Mapper|TenHum|表名could not assemble any primary key columns for mappe..

Man呦

5404人浏览 · 2019-09-02 15:47:51

Man呦 · 2019-09-02 15:47:51 发布

flsak + could not assemble any primary key columns for mapped table

在进行flsak项目迁移时

在进行flsak项目迁移时

sqlalchemy.exc.ArgumentError: Mapper Mapper|TenHum|表名could not assemble any primary key columns for mapped table '表名'
刚看到这报错时，一脸懵逼，仔细看了下，好像说时关于主键有问题，
但网上找了好多都没有，最后在stackoverflow 上找到了答案，出现这问题的原因大致是，在定义数据库模型类的字段时，两个字段之间多了个逗号，
https://stackoverflow.com/questions/24872541/could-not-assemble-any-primary-key-columns-for-mapped-table
在这里插入图片描述