Modify: add unique index for folder & file

models/file.go

@@ -10,12 +10,12 @@ import (
 type File struct {
 	// 表字段
 	gorm.Model
-	Name       string
+	Name       string `gorm:"unique_index:idx_only_one"`
 	SourceName string
-	UserID     uint `gorm:"index:user_id"`
+	UserID     uint `gorm:"index:user_id;unique_index:idx_only_one"`
 	Size       uint64
 	PicInfo    string
-	FolderID   uint `gorm:"index:folder_id"`
+	FolderID   uint `gorm:"index:folder_id;unique_index:idx_only_one"`
 	PolicyID   uint
 	Dir        string `gorm:"size:65536"`