*Fix bug #13852

module/project/lang/zh-cn.php

@@ -57,6 +57,7 @@ $lang->project->unlinkMember       = '移除成员';
 $lang->project->copyTeamTitle      = '选择一个项目团队来复制';
 $lang->project->daysGreaterProject = '可用工日不能大于项目的可用工日『%s』';
 $lang->project->errorHours         = '可用工时/天不能大于『24』';
+$lang->project->workdaysExceed     = '可用工作日不超过『%s』天';
 
 /* Fields. */
 $lang->project->common             = '项目';

module/project/model.php

@@ -847,6 +847,16 @@ class projectModel extends model
             }
         }
 
+        /*Judge workdays is legitimate. */
+        $date1    = date_create($project->begin);
+        $date2    = date_create($project->end);
+        $workdays = date_diff($date1, $date2);
+        if($project->days > $workdays->days)
+        {
+            dao::$errors['days'] = sprintf($this->lang->project->workdaysExceed, $workdays->days);
+            return false;
+        }
+
         /* When select create new product, product name cannot be empty and duplicate. */
         if(isset($_POST['newProduct']))
         {