Yii2 Two different way for breadcrumbs

Question

I have a gii generated view.php page, which can be reached from two different paths, but the breadcrumbs is the same. Anyone know how to fix?

Let me explain: I have the view.php view which shows the summary of the report made and can be reached from two paths:

• when I create a new report and therefore the path should be HOME / CREATION / VIEW;
• and also from a section that shows the user the summary of the reports she sent and therefore the breadcrumbs should be HOME / SUMMARY / VIEW.

Answer 1

1. You have 2 options to know where it came from:

• Send a query variable on each link or in the redirection to manually build the breadcumb. Like: $value = Yii::$app->request->getQueryParam('breadcumb')

• Other option is to get the referrer url. And base on the value you can pass it to the switch. You can get referrer's url using: $value = Yii::$app->request->getReferrer().

2. Then do a switch to build the link:

   switch(value) {
     case 'creation':
      $label = 'CREATION';
      $url = 'url_of_creation';
      break;
     case 'summary':
      $label = 'SUMMARY';
      $url = 'url_of_summary'; 
      break;
   }
   

3. Then just do something like this:

$this->params['breadcrumbs'][] = ['label' => $label, 'url' => $url];

Answer 2

This is a short breadcrum solution using match():

$this->params['breadcrumbs'][] = match($path) {
    'creation' => ['label' => 'Creation', 'url' => Url::to['creation'],
    'summary' => ['label' => 'Summary', 'url' => Url::to['summary'],
};

$path should either be set in the controller or determined by Yii::$app->request->getReferrer().

Please note, that this requires PHP8.