* Fix error message can not pop up the problem.

module/execution/control.php

@@ -340,6 +340,8 @@ class execution extends control
         {
             $postData = form::batchData($this->config->execution->form->importBug)->get();
             $tasks    = $this->executionZen->buildTasksForImportBug($execution, $postData);
+            if(dao::isError()) return $this->sendError(dao::getError());
+
             $this->execution->importBug($tasks);
             if(dao::isError()) return $this->sendError(dao::getError());
 

module/execution/js/importbug.ui.js

@@ -7,6 +7,24 @@ $(document).off('click', '.import-bug-btn').on('click', '.import-bug-btn', funct
     const formData = new FormData($("#importForm")[0]);
     checkedList.forEach((id) => formData.append(`id[${id}]`, id));
 
-    $.ajaxSubmit({url: $('#importForm').attr('action'), data: formData});
+    $.ajaxSubmit({url: $('#importForm').attr('action'), data: formData, onFail: printError});
+
     return false;
 });
+
+/**
+ * Print error message.
+ *
+ * @param  error  $error
+ * @access public
+ * @return void
+ */
+function printError(result)
+{
+    Object.entries(result.message).forEach(([name, msg]) => {
+        if (Array.isArray(msg)) {
+            msg = msg.join('');
+        }
+        zui.Modal.alert(msg);
+    })
+}

module/execution/zen.php

@@ -708,8 +708,6 @@ class executionZen extends execution
             $task->openedBy     = $this->app->user->account;
 
             if($task->estimate !== '') $task->left = $task->estimate;
-            if(strpos($requiredFields, 'estStarted') !== false && helper::isZeroDate($task->estStarted)) $task->estStarted = '';
-            if(strpos($requiredFields, 'deadline') !== false && helper::isZeroDate($task->deadline)) $task->deadline = '';
             if(!empty($task->assignedTo)) $task->assignedDate = $now;
 
             /* Check task required fields. */
@@ -721,13 +719,13 @@ class executionZen extends execution
 
                 if($field == 'estimate' and strlen(trim($task->estimate)) != 0) continue;
 
-                dao::$errors['message'][] = sprintf($this->lang->error->notempty, $this->lang->task->$field);
+                dao::$errors["{$field}[{$bugID}]"] = 'ID: ' . $bugID . sprintf($this->lang->error->notempty, $this->lang->task->$field);
                 return false;
             }
 
             if(!preg_match("/^[0-9]+(.[0-9]{1,3})?$/", (string)$task->estimate) and !empty($task->estimate))
             {
-                dao::$errors['message'][] = $this->lang->task->error->estimateNumber;
+                dao::$errors["{$field}[{$bugID}]"] = 'ID: ' . $bugID . $this->lang->task->error->estimateNumber;
                 return false;
             }