refactor: 移除业务ID字段并优化DAO层实现

dao/file_dao.go

@@ -8,7 +8,6 @@ import (
 
 	"gitea.com/red-future/common/db/gfdb"
 	"github.com/gogf/gf/v2/util/gconv"
-	"github.com/gogf/gf/v2/util/guid"
 )
 
 var File = &file{}
@@ -16,11 +15,14 @@ var File = &file{}
 type file struct{}
 
 // Insert 插入
-func (d *file) Insert(ctx context.Context, req *dto.UploadFile) (res *entity.File, err error) {
+func (d *file) Insert(ctx context.Context, req *dto.UploadFile) (id int64, err error) {
+	var res *entity.File
 	if err = gconv.Struct(req, &res); err != nil {
 		return
 	}
-	res.Bid = guid.S()
-	_, err = gfdb.DB(ctx).Model(ctx, consts.FileCollection).Insert(&res)
-	return
+	r, err := gfdb.DB(ctx).Model(ctx, consts.FileCollection).Insert(&res)
+	if err != nil {
+		return
+	}
+	return r.LastInsertId()
 }