project： file/doc [post] (create new doc api) : model.CreateDoc

[TAODEI]

error 1452 - Cannot add or update a child row: a foreign key constraint fails
CONSTRAINT docs_ibfk_2 FOREIGN KEY (creator_id) REFERENCES users (id) ON DELETE NO ACTION ON UPDATE NO ACTION
删除重建外键未解决，未找到原因， 删除外键后解决