fix service relation in servicetype

src/controllers/service.ts

@@ -55,7 +55,6 @@ export class ServiceController {
 
             const res_count = query;
             const res_list = query
-                .leftJoinAndSelect("Service.serviceType", "serviceType")
                 .orderBy("Service." + param.order_field, param.order_direction)
                 .offset(offset)
                 .limit(limit);

src/model/service.ts

@@ -27,7 +27,10 @@ export class ServiceModel {
 			}
 		}
 
-		var query = repo.createQueryBuilder("Service");
+		var query = repo
+			.createQueryBuilder("Service")
+			.leftJoinAndSelect("Service.serviceType", "serviceType")
+
 		if (whereAttr.length != 0) {
 			query = query.where(whereAttr.join(" and "), whereVal);
 		}