diff --git a/module/productplan/js/batchedit.js b/module/productplan/js/batchedit.js
index 9c6b7dd997..5b8cf09d81 100644
--- a/module/productplan/js/batchedit.js
+++ b/module/productplan/js/batchedit.js
@@ -33,12 +33,8 @@ function setPlanStatus(planID, status)
     if(status != 'wait')
     {
         $('#future' + planID).closest('div').addClass('hidden');
-        
-        $("input[name='begin[" + planID + "]']").closest('td').addClass('required');
-        $("input[name='end[" + planID + "]']").closest('td').addClass('required');
         $("input[name='begin[" + planID + "]']").removeAttr('disabled');
         $("input[name='end[" + planID + "]']").removeAttr('disabled');
-        
         $('.form-date').datetimepicker('update');
     }
     else
@@ -46,15 +42,12 @@ function setPlanStatus(planID, status)
         var isFuture = $('#future' + planID).prop('checked');
 
         $('#future' + planID).closest('div').removeClass('hidden');
-        $("input[name='begin[" + planID + "]']").closest('td').removeClass('required');
-        $("input[name='end[" + planID + "]']").closest('td').removeClass('required');
 
         if(isFuture)
         {
             $("input[name='begin[" + planID + "]']").attr('disabled', 'disabled');
             $("input[name='end[" + planID + "]']").attr('disabled', 'disabled');
         }
-
     }
 }
 
diff --git a/module/productplan/js/edit.js b/module/productplan/js/edit.js
index 340aaa5c09..8aa184ecee 100644
--- a/module/productplan/js/edit.js
+++ b/module/productplan/js/edit.js
@@ -72,8 +72,6 @@ function setPlanStatus()
     {
         $('#checkBox').closest('div').addClass('hidden');
         $('#future').val(0);
-        $('#begin').closest('td').addClass('required');
-        $('#end').closest('td').addClass('required');
         $('#begin').removeAttr('disabled');
         $('#end').parents('tr').show();
     }
@@ -82,12 +80,10 @@ function setPlanStatus()
         var isFuture = $('#future').prop('checked');
 
         $('#checkBox').closest('div').removeClass('hidden');
-        $('#begin').closest('td').removeClass('required');
-        $('#end').closest('td').removeClass('required');
         if(isFuture)
         {
             $('#begin').attr('disabled', 'disabled');
-            $('#end').val('').parents('tr').hide();
+            $('#end').parents('tr').hide();
         }
     }
 }
diff --git a/module/productplan/model.php b/module/productplan/model.php
index e4ada7a7fb..33165c925f 100644
--- a/module/productplan/model.php
+++ b/module/productplan/model.php
@@ -464,19 +464,19 @@ class productplanModel extends model
     {
         $oldPlan = $this->dao->findByID((int)$planID)->from(TABLE_PRODUCTPLAN)->fetch();
         $plan = fixer::input('post')->stripTags($this->config->productplan->editor->edit['id'], $this->config->allowedTags)
-            ->setIF($this->post->future or empty($_POST['begin']), 'begin', $this->config->productplan->future)
-            ->setIF($this->post->future or empty($_POST['end']), 'end', $this->config->productplan->future)
+            ->setIF($this->post->future and empty($_POST['begin']), 'begin', $this->config->productplan->future)
+            ->setIF($this->post->future and empty($_POST['end']), 'end', $this->config->productplan->future)
             ->remove('delta,uid,future')
             ->get();
 
         if($oldPlan->parent > 0)
         {
             $parentPlan = $this->getByID($oldPlan->parent);
-            if($parentPlan->begin != $this->config->productplan->future)
+            if($parentPlan->begin !== $this->config->productplan->future)
             {
                 if($plan->begin < $parentPlan->begin) dao::$errors['begin'] = sprintf($this->lang->productplan->beginLetterParent, $parentPlan->begin);
             }
-            if($parentPlan->end != $this->config->productplan->future)
+            if($parentPlan->end !== $this->config->productplan->future)
             {
                 if($plan->end !== $this->config->productplan->future and $plan->end > $parentPlan->end) dao::$errors['end'] = sprintf($this->lang->productplan->endGreaterParent, $parentPlan->end);
             }
@@ -496,22 +496,12 @@ class productplanModel extends model
             if($maxEnd > $plan->end and $maxEnd != $this->config->productplan->future) dao::$errors['end'] = sprintf($this->lang->productplan->endLetterChildTip, $planID, $plan->end, $maxEnd);
         }
 
-        $requiredFields = $oldPlan->status == 'wait' ? $this->config->productplan->edit->requiredFields : 'title, begin, end';
-        if($plan->status != 'wait' and $plan->begin == $this->config->productplan->future)
-        {
-            dao::$errors['begin'] = sprintf($this->lang->error->notempty, $this->lang->productplan->begin);
-        }
-        if($plan->status != 'wait' and $plan->end == $this->config->productplan->future)
-        {
-            dao::$errors['end'] = sprintf($this->lang->error->notempty, $this->lang->productplan->end);
-        }
         if(dao::isError()) return false;
-
         $plan = $this->loadModel('file')->processImgURL($plan, $this->config->productplan->editor->edit['id'], $this->post->uid);
         $this->dao->update(TABLE_PRODUCTPLAN)
             ->data($plan)
             ->autoCheck()
-            ->batchCheck($requiredFields, 'notempty')
+            ->batchCheck($this->config->productplan->edit->requiredFields, 'notempty')
             ->checkIF(!$this->post->future && !empty($_POST['begin']) && !empty($_POST['end']), 'end', 'ge', $plan->begin)
             ->where('id')->eq((int)$planID)
             ->exec();
@@ -671,21 +661,13 @@ class productplanModel extends model
             $plan->begin  = isset($data->begin[$planID]) ? $data->begin[$planID] : '';
             $plan->end    = isset($data->end[$planID]) ? $data->end[$planID] : '';
             $plan->status = isset($data->status[$planID]) ? $data->status[$planID] : $oldPlans[$planID]->status;
+            $plan->parent = $oldPlans[$planID]->parent;
 
             if(empty($plan->title)) die(js::alter(sprintf($this->lang->productplan->errorNoTitle, $planID)));
+            if($plan->begin > $plan->end and !empty($plan->end)) die(js::alert(sprintf($this->lang->productplan->beginGeEnd, $planID)));
 
-            if(!$isFuture and $plan->status != 'wait')
-            {
-                if($plan->begin == '') die(js::alert(sprintf($this->lang->productplan->errorNoBegin, $planID)));
-                if($plan->end == '') die(js::alert(sprintf($this->lang->productplan->errorNoEnd, $planID)));
-                if($plan->begin > $plan->end) die(js::alert(sprintf($this->lang->productplan->beginGeEnd, $planID)));
-            }
-
-            if($plan->begin == '' or $plan->end == '')
-            {
-                $plan->begin = $this->config->productplan->future;
-                $plan->end   = $this->config->productplan->future;
-            }
+            if($plan->begin == '') $plan->begin = $this->config->productplan->future;
+            if($plan->end   == '') $plan->end   = $this->config->productplan->future;
 
             foreach($extendFields as $extendField)
             {
@@ -701,12 +683,13 @@ class productplanModel extends model
         }
 
         $changes = array();
+        $parents = array();
         foreach($plans as $planID => $plan)
         {
+            $parentID = $oldPlans[$planID]->parent;
             /* Determine whether the begin and end dates of the parent plan and the child plan are correct. */
-            if($oldPlans[$planID]->parent > 0)
+            if($parentID > 0)
             {
-                $parentID = $oldPlans[$planID]->parent;
                 $parent   = isset($plans[$parentID]) ? $plans[$parentID] : $this->getByID($parentID);
                 if($parent->begin != $this->config->productplan->future and $plan->begin != $this->config->productplan->future and $plan->begin < $parent->begin)
                 {
@@ -717,7 +700,7 @@ class productplanModel extends model
                     die(js::alert(sprintf($this->lang->productplan->endGreaterParentTip, $planID, $plan->end, $parent->end)));
                 }
             }
-            elseif($oldPlans[$planID]->parent == -1 and $plan->begin != $this->config->productplan->future)
+            elseif($parentID == -1 and $plan->begin != $this->config->productplan->future)
             {
                 $childPlans = $this->dao->select('*')->from(TABLE_PRODUCTPLAN)->where('parent')->eq($planID)->andWhere('deleted')->eq(0)->fetchAll('id');
                 $minBegin   = $plan->begin;
@@ -735,12 +718,15 @@ class productplanModel extends model
             $change = common::createChanges($oldPlans[$planID], $plan);
             if($change)
             {
+                if($parentID > 0 and !isset($parents[$parentID])) $parents[$parentID] = $parentID;
                 $this->dao->update(TABLE_PRODUCTPLAN)->data($plan)->autoCheck()->where('id')->eq($planID)->exec();
                 if(dao::isError()) die(js::error(dao::getError()));
                 $changes[$planID] = $change;
             }
         }
 
+        foreach($parents as $parent) $this->updateParentStatus($parent);
+
         return $changes;
     }
 
diff --git a/module/productplan/view/batchedit.html.php b/module/productplan/view/batchedit.html.php
index 5d3d08eb0b..eab73ee039 100644
--- a/module/productplan/view/batchedit.html.php
+++ b/module/productplan/view/batchedit.html.php
@@ -38,28 +38,28 @@
       </thead>
       <tbody>
         <?php foreach($plans as $plan):?>
-        <?php $isChecked   = ($plan->begin == '2030-01-01' || $plan->end == '2030-01-01') ? 'checked="checked"' : '';?>
+        <?php $isChecked = ($plan->begin == '2030-01-01' or $plan->end == '2030-01-01') ? 'checked="checked"' : '';?>
         <tr>
           <td class='text-center'><?php echo $plan->id . html::hidden("id[$plan->id]", $plan->id);?></td>
           <?php if($product->type != 'normal'):?>
           <td class='text-left'>
-            <?php $disabled = $plan->parent == '-1' ? "disabled='disabled'" : '';?>
+            <?php $disabled = $plan->parent != -1 ? "disabled='disabled'" : '';?>
             <?php echo html::select("branch[$plan->id]", $plan->parent == '-1' ? '' : $branchTagOption, $plan->branch, "onchange='getConflictStories($plan->id, this.value); 'class='form-control chosen' $disabled");?>
           </td>
           <?php endif;?>
           <td title='<?php echo $plan->title?>'><?php echo html::input("title[$plan->id]", $plan->title, "class='form-control'")?></td>
           <?php if($plan->parent != -1):?>
-          <td><?php echo html::select("status[$plan->id]", array_slice($lang->productplan->statusList,($plan->status == 'wait' ? 0 : 1)), $plan->status, "class='form-control chosen' onchange='setPlanStatus($plan->id, this.value)'");?></td>
+          <td><?php echo html::select("status[$plan->id]", array_slice($lang->productplan->statusList,($plan->status == 'wait' ? 0 : 1)), $plan->status, "class='form-control chosen' onchange='setPlanStatus($plan->id, this.value, $plan->parent)'");?></td>
           <?php else:?>
-          <td><?php echo html::select("status[$plan->id]", array_slice($lang->productplan->statusList,($plan->status == 'wait' ? 0 : 1)), $plan->status, "class='form-control chosen' disabled onchange='setPlanStatus($plan->id, this.value)'");?></td>
+          <td><?php echo html::select("status[$plan->id]", array_slice($lang->productplan->statusList,($plan->status == 'wait' ? 0 : 1)), $plan->status, "class='form-control chosen' disabled onchange='setPlanStatus($plan->id, this.value, $plan->parent)'");?></td>
           <?php endif;?>
-          <?php $required = $plan->status != 'wait' ? 'required' : '' ;?>
-          <?php $disabled = ($plan->begin == '2030-01-01' || $plan->end == '2030-01-01') ? 'disabled="disabled"' : '';?>
+          <?php $disabled = (($plan->begin == '2030-01-01' or $plan->end == '2030-01-01') and $plan->status == 'wait') ? 'disabled="disabled"' : '';?>
+          <?php if($plan->parent == -1 and ($plan->begin == '2030-01-01' or $plan->end == '2030-01-01')) $disabled = 'disabled="disabled"';?>
           <?php if($plan->begin == '2030-01-01') $plan->begin = '';?>
           <?php if($plan->end == '2030-01-01') $plan->end = '';?>
-          <td class=<?php echo $required;?>><?php echo html::input("begin[$plan->id]", $plan->begin, "class='form-control form-date' $disabled");?></td>
-          <td class=<?php echo $required;?>><?php echo html::input("end[$plan->id]", $plan->end, "class='form-control form-date' $disabled");?></td>
-          <?php $hidden = ($plan->status != 'wait') ? 'hidden' : '';?>
+          <td><?php echo html::input("begin[$plan->id]", $plan->begin, "class='form-control form-date' $disabled");?></td>
+          <td><?php echo html::input("end[$plan->id]", $plan->end, "class='form-control form-date' $disabled");?></td>
+          <?php $hidden = ($plan->status != 'wait' and $plan->parent != -1) ? 'hidden' : '';?>
           <td><div class='checkbox-primary <?php echo $hidden;?>'><input type='checkbox' id="future<?php echo $plan->id; ?>" name='future[<?php echo $plan->id; ?>]' <?php echo $isChecked;?> onclick="changeDate(<?php echo $plan->id;?>);"/><label for='future<?php echo $plan->id; ?>'><?php echo $lang->productplan->future;?></label></div></td>
           <?php foreach($extendFields as $extendField) echo "<td" . (($extendField->control == 'select' or $extendField->control == 'multi-select') ? " style='overflow:visible'" : '') . ">" . $this->loadModel('flow')->getFieldControl($extendField, $plan, $extendField->field . "[{$plan->id}]") . "</td>";?>
         </tr>
diff --git a/module/productplan/view/edit.html.php b/module/productplan/view/edit.html.php
index 37ddaa9172..580878bf26 100644
--- a/module/productplan/view/edit.html.php
+++ b/module/productplan/view/edit.html.php
@@ -47,11 +47,10 @@
             <?php endif;?>
           </tr>
           <tr>
-            <?php $required = $plan->status != 'wait' ? 'required' : '' ;?>
-            <?php $hidden   = $plan->status != 'wait' ? 'hidden' : '';?>
-            <?php $checked  = $plan->begin  == '2030-01-01' || $plan->end == '2030-01-01' ? "checked='checked'" : '';?>
+            <?php $hidden  = $plan->status != 'wait' ? 'hidden' : '';?>
+            <?php $checked = $plan->begin  == '2030-01-01' || $plan->end == '2030-01-01' ? "checked='checked'" : '';?>
             <th><?php echo $lang->productplan->begin;?></th>
-            <td><?php echo html::input('begin', $plan->begin != '2030-01-01' ? formatTime($plan->begin) : '', "class='form-control form-date' $required");?></td>
+            <td><?php echo html::input('begin', $plan->begin != '2030-01-01' ? formatTime($plan->begin) : '', "class='form-control form-date'");?></td>
             <td>
               <?php if($plan->status == 'wait'):?>
               <div class='checkbox-primary <?php echo $hidden;?>' id='checkBox'>
@@ -63,7 +62,7 @@
           </tr>
           <tr>
             <th><?php echo $lang->productplan->end;?></th>
-            <td><?php echo html::input('end', $plan->end != '2030-01-01' ? formatTime($plan->end) : '', "class='form-control form-date' $required");?></td>
+            <td><?php echo html::input('end', $plan->end != '2030-01-01' ? formatTime($plan->end) : '', "class='form-control form-date'");?></td>
             <?php $deltaValue = $plan->end == '2030-01-01' ? 0 : (strtotime($plan->end) - strtotime($plan->begin)) / 3600 / 24 + 1;?>
             <td colspan='2'><?php echo html::radio('delta', $lang->productplan->endList , $deltaValue, "onclick='computeEndDate(this.value)'");?></td>
           </tr>