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POSymfony2 - Twig Function returning an array
 

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  1. POSymfony2 - Twig Function returning an array
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    <p>I created a twig extension that returns me the list of all the blogs I have. This list is an array that I loop through in my twig template.</p> <p><strong>Here's my extension:</strong> </p> <pre><code>&lt;?php // src/OSC/BlogBundle/Twig/BlogsListExtension.php namespace OSC\BlogBundle\Twig; class BlogsListExtension extends \Twig_Extension { public function getFunctions() { return array( 'blogsList' =&gt; new \Twig_Function_Method($this, array($this, 'blogsList')), ); } public function blogsList() { $em = $this-&gt;getDoctrine() -&gt;getManager(); $repository = $em -&gt;getRepository('OSCBlogBundle:Blog'); $blogs = $repository-&gt;findBy(array('visibleState' =&gt; true)); usort($blogs, array("\OSC\BlogBundle\Controller\BlogController", "orderBlogByTitle")); return $blogs; } public function getName() { return 'osc_BlogsListExtension'; } } </code></pre> <p><strong>Here's what I added in my services.yml</strong></p> <pre><code>services: osc_blog.blogsList_extension: class: OSC\BlogBundle\Twig\BlogsListExtension tags: - { name: twig.extension } </code></pre> <p><strong>In my twig template, I want to do the following:</strong></p> <pre><code>&lt;ul&gt; {% for blog in blogsList()|sort %} &lt;li&gt;&lt;a href="{{ path('osc_blog_homepage', {'blogId': blog.id })}}"&gt;&lt;span&gt;{{ blog.title }}&lt;/span&gt;&lt;/a&gt;&lt;/li&gt; {% endfor %} &lt;/ul&gt; </code></pre> <p><strong>I get the following error:</strong></p> <blockquote> <p>An exception has been thrown during the compilation of a template ("Notice: Array to string conversion</p> </blockquote> <p><strong>Finally, my question is how can I pass an array to a variable in order to loop through it in a twig template ?</strong></p>
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    1. COHave you done any debugging? What would be the output of `var_dump($blogs)`? Is it an array at all? Also why there is a double sorting? First in the php file (useort) and then another one in for statement.
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    2. CO$blogs is an array that returns all the blog objects
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    3. COIs the posted code your entire twig template?
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