* Adapted loco-rs/schema.rs * avoid `&mut ColumnDef` after upgraded to sea-query 0.31.0 * refactoring * rewrite schema.rs * revert * fmt * fix * loco_example: pin loco-rs version * refactor
* Adapted loco-rs/schema.rs * avoid `&mut ColumnDef` after upgraded to sea-query 0.31.0 * refactoring * rewrite schema.rs * revert * fmt * fix * loco_example: pin loco-rs version * refactor