完善功能

internal/logic/user_follow_author/user_follow_author.go

@@ -5,11 +5,19 @@ import (
 	"server/internal/dao"
 	"server/internal/model"
 	"server/internal/model/do"
+	"server/internal/service"
 	"server/utility/ecode"
 )
 
 type sUserFollowAuthor struct{}
 
+func New() service.IUserFollowAuthor {
+	return &sUserFollowAuthor{}
+}
+func init() {
+	service.RegisterUserFollowAuthor(New())
+}
+
 // List retrieves a paginated list of user follow authors
 func (s *sUserFollowAuthor) List(ctx context.Context, in *model.UserFollowAuthorListIn) (out *model.UserFollowAuthorListOut, err error) {
 	out = &model.UserFollowAuthorListOut{}
@@ -64,3 +72,27 @@ func (s *sUserFollowAuthor) Delete(ctx context.Context, in *model.UserFollowAuth
 	}
 	return &model.UserFollowAuthorCRUDOut{Success: true}, nil
 }
+
+// Unfollow removes a user follow author by userId and authorId
+func (s *sUserFollowAuthor) Unfollow(ctx context.Context, userId int64, authorId int64) (out *model.UserFollowAuthorCRUDOut, err error) {
+	if userId == 0 || authorId == 0 {
+		return nil, ecode.Params.Sub("user_id_or_author_id_invalid")
+	}
+	// 查找关注记录
+	var record struct{ Id int64 }
+	err = dao.UserFollowAuthors.Ctx(ctx).
+		Where(dao.UserFollowAuthors.Columns().UserId, userId).
+		Where(dao.UserFollowAuthors.Columns().AuthorId, authorId).
+		Fields("id").Scan(&record)
+	if err != nil {
+		return nil, ecode.Fail.Sub("user_follow_author_query_failed")
+	}
+	if record.Id == 0 {
+		return nil, ecode.NotFound.Sub("user_follow_author_not_found")
+	}
+	_, err = dao.UserFollowAuthors.Ctx(ctx).WherePri(record.Id).Delete()
+	if err != nil {
+		return nil, ecode.Fail.Sub("user_follow_author_delete_failed")
+	}
+	return &model.UserFollowAuthorCRUDOut{Success: true}, nil
+}