feat: query for update usertitle

sql/migrations/000001_init.up.sql

@@ -179,6 +179,6 @@ END;
 $$ LANGUAGE plpgsql;
 
 CREATE TRIGGER set_ctime_on_update
-AFTER UPDATE ON usertitles
+BEFORE UPDATE ON usertitles
 FOR EACH ROW
 EXECUTE FUNCTION set_ctime();

sql/queries.sql.go

@@ -925,3 +925,41 @@ func (q *Queries) UpdateUser(ctx context.Context, arg UpdateUserParams) (UpdateU
 	)
 	return i, err
 }
+
+const updateUserTitle = `-- name: UpdateUserTitle :one
+UPDATE usertitles
+SET
+    status = COALESCE($1::usertitle_status_t, status),
+    rate   = COALESCE($2::int, rate)
+WHERE
+    user_id = $3
+    AND title_id = $4
+RETURNING user_id, title_id, status, rate, review_id, ctime
+`
+
+type UpdateUserTitleParams struct {
+	Status  NullUsertitleStatusT `json:"status"`
+	Rate    *int32               `json:"rate"`
+	UserID  int64                `json:"user_id"`
+	TitleID int64                `json:"title_id"`
+}
+
+// Fails with sql.ErrNoRows if (user_id, title_id) not found
+func (q *Queries) UpdateUserTitle(ctx context.Context, arg UpdateUserTitleParams) (Usertitle, error) {
+	row := q.db.QueryRow(ctx, updateUserTitle,
+		arg.Status,
+		arg.Rate,
+		arg.UserID,
+		arg.TitleID,
+	)
+	var i Usertitle
+	err := row.Scan(
+		&i.UserID,
+		&i.TitleID,
+		&i.Status,
+		&i.Rate,
+		&i.ReviewID,
+		&i.Ctime,
+	)
+	return i, err
+}