修改优惠券开始日期

@@ -112,6 +112,7 @@ class Bcoupon extends Backend
                         $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                         $this->model->validateFailException(true)->validate($validate);
                     }
+                    $params['start_time'] = strtotime($params['start_time']);
                     $params['end_time'] = strtotime($params['end_time']);
                     //无门槛，有门槛
                     if($params['c_type'] == 0){
@@ -186,6 +187,7 @@ class Bcoupon extends Backend
                         $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                         $row->validateFailException(true)->validate($validate);
                     }
+                    $params['start_time'] = strtotime($params['start_time']);
                     $params['end_time'] = strtotime($params['end_time']);
                     //无门槛，有门槛
                     if($params['c_type'] == 0){

@@ -105,6 +105,7 @@ class Coupon extends Backend
                         $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                         $this->model->validateFailException(true)->validate($validate);
                     }
+                    $params['start_time'] = strtotime($params['start_time']);
                     $params['end_time'] = strtotime($params['end_time']);
                     //无门槛，有门槛
                     if($params['c_type'] == 0){
@@ -179,6 +180,7 @@ class Coupon extends Backend
                         $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                         $row->validateFailException(true)->validate($validate);
                     }
+                    $params['start_time'] = strtotime($params['start_time']);
                     $params['end_time'] = strtotime($params['end_time']);
                     //无门槛，有门槛
                     if($params['c_type'] == 0){

@@ -112,6 +112,7 @@ class Gcoupon extends Backend
                         $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                         $this->model->validateFailException(true)->validate($validate);
                     }
+                    $params['start_time'] = strtotime($params['start_time']);
                     $params['end_time'] = strtotime($params['end_time']);
                     //无门槛，有门槛
                     if($params['c_type'] == 0){
@@ -186,6 +187,7 @@ class Gcoupon extends Backend
                         $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                         $row->validateFailException(true)->validate($validate);
                     }
+                    $params['start_time'] = strtotime($params['start_time']);
                     $params['end_time'] = strtotime($params['end_time']);
                     //无门槛，有门槛
                     if($params['c_type'] == 0){