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POWhy this function doesn't return the value? - Symfony2
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2012-09-14T07:12:18.930
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2012-11-23T08:34:44.370
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2012-11-23T08:34:44.370
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In the actions of my controller I often select a row from a table in the database by its id, so I separated this to a function. But every time when I do this I make a check if something was returned by the query, so I want to separate this to the function, too. Here is my code: This function is in a Controller, which is extended by my Contoller in which are these actions: <pre><code>protected function findById($id, $class) { $result = $this->getEM()->getRepository('EMMyFriendsBundle:'.$class)->find($id); if($result == null) { return false; } else { return $result; } } </code></pre> And this is my Controller: <pre><code>class FriendController extends Controller { private $em; private $friend; private function init($id) { $this->em = $this->getEM(); $this->friend = $this->findById($id, 'Friend'); if(!$this->friend) { return $this->render('EMMyFriendsBundle:Friend:error.html.twig', array( 'item' => 'friend')); } } /* * Displays all the information about a concrete friend */ public function displayAction($id) { $this->init($id); if($this->friend->getCategory() != null) { $category = $this->friend->getCategory()->getName(); } else { $category = null; } return $this->render('EMMyFriendsBundle:Friend:friend.html.twig', array( 'friend' => $this->friend, 'category' => $category)); } // ... } </code></pre> When I choose an ID, which don't exist (like 38743874) it goes to the if-part in the init function, but doesn't render the template error.html.twig :( But if I take this part <pre><code>if(!$this->friend) { return $this->render('EMMyFriendsBundle:Friend:error.html.twig', array( 'item' => 'friend')); } </code></pre> out of the <code>init()</code> function and put it in <code>displayAction($id)</code> just after calling <code>$this->init($id)</code>, it works. But I don't want to write this in every single action of that controller. Any ideas how to separate it to avoid code duplication?
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<symfony><doctrine2>
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Why this function doesn't return the value? - Symfony2
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.