diff --git a/module/doc/model.php b/module/doc/model.php
index a1da5ecec1..8fa41ff68f 100644
--- a/module/doc/model.php
+++ b/module/doc/model.php
@@ -1139,7 +1139,6 @@ class docModel extends model
         }
 
         if($type == 'product' or $type == 'project') $libs = $this->dao->select('*')->from($table)->where('id')->in(array_keys($libs))->orderBy('`order` desc')->fetchAll('id');
-
         return $libs;
     }
 
diff --git a/module/program/lang/de.php b/module/program/lang/de.php
index 5de5fcac87..0a8b813ab4 100644
--- a/module/program/lang/de.php
+++ b/module/program/lang/de.php
@@ -160,8 +160,8 @@ $lang->program->PRJParentBeginEnd    = "The begin and end date of the parent pro
 $lang->program->PRJParentBudget      = "The budget of the parent project: %s";
 $lang->program->PRJBeginLetterParent = "The begin date of the parent project: %s. It cannot be < the begin date of its parent project.";
 $lang->program->PRJEndGreaterParent  = "The end date of the parent project: %s. It cannot be > the end date of its parent project.";
-$lang->program->PRJBeginGreateChild  = "The earliest begin date of a child project: %s. The begin date of its parent project cannot be > the earliest begin date of a child project.";
-$lang->program->PRJEndLetterChild    = "The latest end date of a child project: %s. The end date of its parent project cannot be < the latest end date of child project.";
+$lang->program->PRJBeginGreateChild  = "The minimum start date of the project set: %s. The start date of the project cannot be less than the minimum start date of the program set.";
+$lang->program->PRJEndLetterChild    = "The maximum finish date for the project set: %s. The completion date of a project cannot be greater than the maximum completion date of the program set.";
 $lang->program->PRJChildLongTime     = "There are long-term projects in the child project, and the parent project should also be a long-term project.";
 
 /* Actions. */
diff --git a/module/program/lang/en.php b/module/program/lang/en.php
index 5de5fcac87..0a8b813ab4 100644
--- a/module/program/lang/en.php
+++ b/module/program/lang/en.php
@@ -160,8 +160,8 @@ $lang->program->PRJParentBeginEnd    = "The begin and end date of the parent pro
 $lang->program->PRJParentBudget      = "The budget of the parent project: %s";
 $lang->program->PRJBeginLetterParent = "The begin date of the parent project: %s. It cannot be < the begin date of its parent project.";
 $lang->program->PRJEndGreaterParent  = "The end date of the parent project: %s. It cannot be > the end date of its parent project.";
-$lang->program->PRJBeginGreateChild  = "The earliest begin date of a child project: %s. The begin date of its parent project cannot be > the earliest begin date of a child project.";
-$lang->program->PRJEndLetterChild    = "The latest end date of a child project: %s. The end date of its parent project cannot be < the latest end date of child project.";
+$lang->program->PRJBeginGreateChild  = "The minimum start date of the project set: %s. The start date of the project cannot be less than the minimum start date of the program set.";
+$lang->program->PRJEndLetterChild    = "The maximum finish date for the project set: %s. The completion date of a project cannot be greater than the maximum completion date of the program set.";
 $lang->program->PRJChildLongTime     = "There are long-term projects in the child project, and the parent project should also be a long-term project.";
 
 /* Actions. */
diff --git a/module/program/lang/fr.php b/module/program/lang/fr.php
index 5de5fcac87..0a8b813ab4 100644
--- a/module/program/lang/fr.php
+++ b/module/program/lang/fr.php
@@ -160,8 +160,8 @@ $lang->program->PRJParentBeginEnd    = "The begin and end date of the parent pro
 $lang->program->PRJParentBudget      = "The budget of the parent project: %s";
 $lang->program->PRJBeginLetterParent = "The begin date of the parent project: %s. It cannot be < the begin date of its parent project.";
 $lang->program->PRJEndGreaterParent  = "The end date of the parent project: %s. It cannot be > the end date of its parent project.";
-$lang->program->PRJBeginGreateChild  = "The earliest begin date of a child project: %s. The begin date of its parent project cannot be > the earliest begin date of a child project.";
-$lang->program->PRJEndLetterChild    = "The latest end date of a child project: %s. The end date of its parent project cannot be < the latest end date of child project.";
+$lang->program->PRJBeginGreateChild  = "The minimum start date of the project set: %s. The start date of the project cannot be less than the minimum start date of the program set.";
+$lang->program->PRJEndLetterChild    = "The maximum finish date for the project set: %s. The completion date of a project cannot be greater than the maximum completion date of the program set.";
 $lang->program->PRJChildLongTime     = "There are long-term projects in the child project, and the parent project should also be a long-term project.";
 
 /* Actions. */
diff --git a/module/program/lang/vi.php b/module/program/lang/vi.php
index 5de5fcac87..0a8b813ab4 100644
--- a/module/program/lang/vi.php
+++ b/module/program/lang/vi.php
@@ -160,8 +160,8 @@ $lang->program->PRJParentBeginEnd    = "The begin and end date of the parent pro
 $lang->program->PRJParentBudget      = "The budget of the parent project: %s";
 $lang->program->PRJBeginLetterParent = "The begin date of the parent project: %s. It cannot be < the begin date of its parent project.";
 $lang->program->PRJEndGreaterParent  = "The end date of the parent project: %s. It cannot be > the end date of its parent project.";
-$lang->program->PRJBeginGreateChild  = "The earliest begin date of a child project: %s. The begin date of its parent project cannot be > the earliest begin date of a child project.";
-$lang->program->PRJEndLetterChild    = "The latest end date of a child project: %s. The end date of its parent project cannot be < the latest end date of child project.";
+$lang->program->PRJBeginGreateChild  = "The minimum start date of the project set: %s. The start date of the project cannot be less than the minimum start date of the program set.";
+$lang->program->PRJEndLetterChild    = "The maximum finish date for the project set: %s. The completion date of a project cannot be greater than the maximum completion date of the program set.";
 $lang->program->PRJChildLongTime     = "There are long-term projects in the child project, and the parent project should also be a long-term project.";
 
 /* Actions. */
diff --git a/module/program/lang/zh-cn.php b/module/program/lang/zh-cn.php
index 8d8505a369..780a68e40a 100644
--- a/module/program/lang/zh-cn.php
+++ b/module/program/lang/zh-cn.php
@@ -160,8 +160,8 @@ $lang->program->PRJParentBeginEnd    = "父项目起止时间：%s ~ %s";
 $lang->program->PRJParentBudget      = "父项目预算：%s";
 $lang->program->PRJBeginLetterParent = "父项目的开始日期：%s，开始日期不能小于父项目的开始日期";
 $lang->program->PRJEndGreaterParent  = "父项目的完成日期：%s，完成日期不能大于父项目的完成日期";
-$lang->program->PRJBeginGreateChild  = "项目的最小开始日期：%s，项目集的开始日期不能大于项目的最小开始日期";
-$lang->program->PRJEndLetterChild    = "项目的最大完成日期：%s，项目集的完成日期不能小于项目的最大完成日期";
+$lang->program->PRJBeginGreateChild  = "项目集的最小开始日期：%s，项目的开始日期不能小于项目集的最小开始日期";
+$lang->program->PRJEndLetterChild    = "项目集的最大完成日期：%s，项目的完成日期不能大于项目集的最大完成日期";
 $lang->program->PRJChildLongTime     = "子项目中有长期项目，父项目也应该是长期项目";
 
 /* Actions. */
diff --git a/module/program/lang/zh-tw.php b/module/program/lang/zh-tw.php
index d80ad85343..7b7b6668e8 100644
--- a/module/program/lang/zh-tw.php
+++ b/module/program/lang/zh-tw.php
@@ -160,8 +160,8 @@ $lang->program->PRJParentBeginEnd    = "父項目起止時間：%s ~ %s";
 $lang->program->PRJParentBudget      = "父項目預算：%s";
 $lang->program->PRJBeginLetterParent = "父項目的開始日期：%s，開始日期不能小於父項目的開始日期";
 $lang->program->PRJEndGreaterParent  = "父項目的完成日期：%s，完成日期不能大於父項目的完成日期";
-$lang->program->PRJBeginGreateChild  = "項目的最小開始日期：%s，項目集的開始日期不能大於項目的最小開始日期";
-$lang->program->PRJEndLetterChild    = "項目的最大完成日期：%s，項目集的完成日期不能小於項目的最大完成日期";
+$lang->program->PRJBeginGreateChild  = "項目集的最小開始日期：%s，項目的開始日期不能小於項目集的最小開始日期";
+$lang->program->PRJEndLetterChild    = "項目集的最大完成日期：%s，項目的完成日期不能大於項目集的最大完成日期";
 $lang->program->PRJChildLongTime     = "子項目中有長期項目，父項目也應該是長期項目";
 
 /* Actions. */
diff --git a/module/program/model.php b/module/program/model.php
index c42d75c1af..68a33033e2 100644
--- a/module/program/model.php
+++ b/module/program/model.php
@@ -278,7 +278,6 @@ class programModel extends model
             }
         }
 
-        $this->lang->project->code = $this->lang->program->PGMCode;
         $program = $this->loadModel('file')->processImgURL($program, $this->config->program->editor->pgmcreate['id'], $this->post->uid);
         $this->dao->insert(TABLE_PROGRAM)->data($program)
             ->autoCheck()
@@ -376,6 +375,7 @@ class programModel extends model
         }
         if(dao::isError()) return false;
 
+
         $this->dao->update(TABLE_PROGRAM)->data($program)
             ->autoCheck($skipFields = 'begin,end')
             ->batchcheck($this->config->program->PGMEdit->requiredFields, 'notempty')