Yii2, how to replace the meta tag for the meta tags from the "view" with the default meta tags in the "layout"

Question

I want to put the default metadata description tag for the main layout of the template.

There are many cases where I needed to replace the default meta tags, such as description and keywords, with data customization in the views.

I tried:

$this->registerMetaTag

In the views where I need to customize the meta tags, and also I used this in the main layout.

I thought that if I use meta tags with their identifier or name, it will be replaced, but as a result, repeated meta tags will be shown, for example,

<meta id="main_index" name="Description" content="my default content added by layout.">


<meta id="main_index" name="Description" content="my customized content added by the view"></head>

What is the best way to provide a default description tag, but it can be customized using views when I call $this->registerMetaTag

Answer 1

, , , , , registerMetaTag .

• ,

  class MyController extends Controller
  {    
      public function beforeAction($event){
      $this->view->title = Yii::$app->params['pageTitle'];
  
      \Yii::$app->view->registerMetaTag(Yii::$app->params['pageDefaultDescription'],"default_description");
      \Yii::$app->view->registerMetaTag(Yii::$app->params['pageDefaultKeywords'],"default_keywords");
      \Yii::$app->view->registerMetaTag(Yii::$app->params['pageDefaultAuthor'],"default_author");
  
      // Open Graph Tags
      \Yii::$app->view->registerMetaTag(Yii::$app->params['pageDefaultOG_Description'],"default_og_description");
      \Yii::$app->view->registerMetaTag(Yii::$app->params['pageDefaultOG_SiteName'],"default_og_sitename");
      \Yii::$app->view->registerMetaTag(Yii::$app->params['pageDefaultOG_Title'],"default_og_title");
      \Yii::$app->view->registerMetaTag(Yii::$app->params['pageDefaultOG_Type'],"default_og_type");
  
  
      return parent::beforeAction($event);
      }
  } 
  

• , author .. param .

• , , MyController, .

• , .

   public function actionIndex()
  {
  
  
      \Yii::$app->view->registerMetaTag([
          'name' => 'description',
          'content' => 'my customize description for the index.',
          'id'=>"main_index"
      ],"main_index"); //this will now replace the default one.
  
  
      return $this->render('index');
  }
  

Answer 2

. , , .

/params.php

<?php
return [
    'adminEmail' => '[e-mail]',
    'og_title' => ['property' => 'og:title', 'content' => 'title'],
    'og_description' => ['property' => 'og:description', 'content' => 'description'],
    'og_url' => ['property' => 'og:url', 'content' => '/'],
    'og_image' => ['property' => 'og:image', 'content' => 'image']
];

//main.php

<?php
    $this->registerMetaTag(Yii::$app->params['og_title'], 'og_title');
    $this->registerMetaTag(Yii::$app->params['og_description'], 'og_description');
    $this->registerMetaTag(Yii::$app->params['og_url'], 'og_url');
    $this->registerMetaTag(Yii::$app->params['og_image'], 'og_image');
?>

, ,

//index.php

<?php
    Yii::$app->params['og_title']['content'] = 'custom title';
    Yii::$app->params['og_description']['content'] = 'custom desc';
    Yii::$app->params['og_url']['content'] = '/new/url';
    Yii::$app->params['og_image']['content'] = 'image.jpg';
?>

Answer 3

You can manage a registered meta tag using a similar identifier. Make sure meta tags are created using Yii. From your question, you have already created a metric tag that cannot be replaced because Yii does not control it.

public function actionTest1{
    $this->registerMetaTag('your example', 'description', null, array(), 'metaDescription');
    $this->render('myView');
}

public function actionTest2{
    $this->registerMetaTag('your example2', 'description', null, array(), 'metaDescription');
    $this->render('myView2');
}