https://typeorm.io/repository-api
https://github.com/typeorm/typeorm/blob/master/src/repository/Repository.ts
- manager
- metadata
- queryRunner
- target
- createQueryBuilder
- hasId
- getId
- create
- merge
- preload
- save
- remove
- insert
- update
- upsert
- delete
- softDelete, restore
- softRemove, recover
- increment
- decrement
- count
- countBy
- sum
- average
- minimum
- maximum
- find
- findBy
- findAndCount
- findAndCountBy
- findOne
- findOneBy
- findOneOrFail
- findOneByOrFail
- query
- clear
