增加小程序登录后，同步更新openid 到 tb_user.applet_openid

Change-Id: Id41635e4ab2fbdc2cf845f96825b5144adcf2287

backstage/application/api/controllers/api/Applet.php

@@ -180,4 +180,30 @@ class Applet extends REST_Controller {
             )
         ), REST_Controller::HTTP_OK);
     }
+
+    public function updateAppletOpenid_post(){
+        $user_id = $this->user->id;
+        $uid = $this->input->post("uid", true);
+        if($user_id != $uid){
+            $this->response(array(
+                'status' => 0,
+                'message' => 'token和uid不匹配',
+
+            ), REST_Controller::HTTP_OK);
+        }
+        $applet_openid = $this->input->post("applet_openid", true);
+
+        $res = $this->User_model->update_user(array('applet_openid' => $applet_openid), $user_id);
+        if($res){
+            $this->response(array(
+                'status' => 1,
+                'message' => '更新成功',
+            ), REST_Controller::HTTP_OK);
+        }else{
+            $this->response(array(
+                'status' => 0,
+                'message' => '更新失败',
+            ), REST_Controller::HTTP_OK);
+        }
+    }
 }