Bug 904 fixes and add validation for assist employee start and end date in maintenance request

lib/models/new_models/task_request/task_request_model.dart

@@ -542,7 +542,7 @@ class TaskJobAssistantEmployees {
     data['id'] = id ?? 0;
     data['startDate'] = startDate?.toIso8601String();
     data['endDate'] = endDate?.toIso8601String();
-    data['workingHours'] = workingHours;
+    data['totalWorkingHour'] = workingHours;
     data['comment'] = comment;
     data['assistantEnginerId'] = user?.userId;
     return data;

lib/modules/cm_module/views/forms/maintenance_request/maintenance_request_main.dart

@@ -223,6 +223,16 @@ class _MaintenanceRequestFormState extends State<MaintenanceRequestForm> with Si
       Fluttertoast.showToast(msg: "${context.translation.youHaveToSelect} ${context.translation.repairLocation}");
       return false;
     }
+    if (model.assistantEmployees != null && model.assistantEmployees!.isNotEmpty) {
+      if (model.modelAssistantEmployees?.startDate == null) {
+        Fluttertoast.showToast(msg: "Please Select Assistant Employee Start Time");
+        return false;
+      }
+      if (model.modelAssistantEmployees?.endDate == null) {
+        Fluttertoast.showToast(msg: "Please Select Assistant Employee End Time");
+        return false;
+      }
+    }
     // else if (model.assignedEmployeeId == null) {
     //   Fluttertoast.showToast(msg: "${context.translation.youHaveToSelect} ${context.translation.assignedEmployee}");
     //   return false;

lib/modules/tm_module/tasks_wo/task_request_detail_view.dart

@@ -121,7 +121,7 @@ class _TaskRequestDetailsViewState extends State<TaskRequestDetailsView> {
                           ],
                         ),
                       ],
-                      if (taskProvider.taskRequestModel!.taskJobContactPersons!.isNotEmpty) contactInfoCard(context, taskProvider.taskRequestModel),
+                      // if (taskProvider.taskRequestModel!.taskJobContactPersons!.isNotEmpty) contactInfoCard(context, taskProvider.taskRequestModel),
                       if (taskProvider.taskRequestModel?.callComment != null) ...[
                         const Divider().defaultStyle(context),
                         Text(