Yii2实现增删改查后留在当前页的方法详解

2、Helper.php文件

<?php

use Yii;

class Helper
{ 
 private static $returnUrl;
 public static $returnUrlWithoutHistory = false;

 /**
 * @param int $depth
 * @return string
 */
 public static function getReturnUrl()
 {
 if (is_null(self::$returnUrl)) {
  $url = parse_url(Yii::$app->request->url);
  $returnUrlParams = [];
  if (isset($url['query'])) {
  $parts = explode('&', $url['query']);
  foreach ($parts as $part) {
   $pieces = explode('=', $part);
   if (static::$returnUrlWithoutHistory && count($pieces) == 2 && $pieces[0] === 'returnUrl') {
   continue;
   }
   if (count($pieces) == 2 && strlen($pieces[1]) > 0) {
   $returnUrlParams[] = $part;
   }
  }
  }
  if (count($returnUrlParams) > 0) {
  self::$returnUrl = $url['path'] . '?' . implode('&', $returnUrlParams);
  } else {
  self::$returnUrl = $url['path'];
  }
 }
 return self::$returnUrl;
 }
}

视图调用

1、直接调用，把Yii2自带的['class' => 'yiigridActionColumn']换成我们新写的['class' => 'commoncomponentsActionColumn'] 。

2、如直接调用不能满足你的要求可以自定义链接，自定义链接的写法如下：

[
 'class' => 'commoncomponentsActionColumn',
 'urlCreator' => function($action, $model, $key, $index) use ($id) {
 //自定义链接传的参数
 $params = [
  $action,
  'option_id' => $model->option_id, 
  'id' => $id,
 ];
 $params['returnUrl'] = commoncomponentsHelper::getReturnUrl();
 return yiihelpersUrl::toRoute($params);
 },
 'buttons' => [
   [
   'url' =>'view',
   'class' => 'btn btn-success btn-xs',
   'label' => Yii::t('yii', 'View'),
   'appendReturnUrl' => false,//是否保留当前URL，默认为true
   'url_append' => '',
   'keyParam' => 'id', //是否传id,不传设置null
   ],
   [
   'url' => 'update',
   'class' => 'btn btn-primary btn-xs btn-sm',
   'label' => Yii::t('yii', 'Update'),
   'appendReturnUrl' => true,//是否保留当前URL，默认为true
   'url_append' => '',
   'keyParam' => 'id', //是否传id,不传设置null
   ],
   [
   'url' => 'delete',
   'class' => 'btn btn-danger btn-xs btn-sm',
   'label' => Yii::t('yii', 'Delete'),
   'options' => [
   'data-action' => 'delete',
   ],
   'appendReturnUrl' => true,//是否保留当前URL，默认为true
   'url_append' => '',
   'keyParam' => 'id', //是否传id,不传设置null
   ],
 ],

],

3、新增的话，这么引用<?= Html::a(Yii::t('yii', 'Create'), ['create','returnUrl' => Helper::getReturnUrl()], ['class' => 'btn btn-success']) ?> 。

控制器逻辑

1、用get获取returnUrl，代码：$returnUrl = Yii::$app->request->get('returnUrl'); 。

2、跳转到的URL：return $this->redirect($returnUrl); 。

分析总结

1、此方法的好处是不动核心代码，调用方式保留了Yii2自带的方式。