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Symfony 2 Configuration Array of associative arrays
#####################################################
:date: 2012-12-20T12:03:23Z
:category: blog
:tags: php,symfony
:url: blog/2012/12/20/symfony-2-configuration-array-of-associative-arrays.html
:save_as: blog/2012/12/20/symfony-2-configuration-array-of-associative-arrays.html
:status: published
:author: Gergely Polonkai
Few days ago I have struggled with a problem using Symfony2 configuration. I
wanted to add the following kind of configuration to ``config.yml``:
.. code-block:: yaml
acme_demo:
transitions:
- { hc_cba: 180 }
- { cba_hc: -1 }
The problem was that the stuff under ``transitions`` is dynamic, so those ``hc_cba`` and
``cba_hc`` tags can be pretty much anything. After hitting many errors, I came to the solution:
.. code-block:: php
<?php
$rootNode
->children()
->arrayNode('state_machine')
->requiresAtLeastOneElement()
->beforeNormalization()
->ifArray()
->then(function($values) {
$ret = array();
foreach ($values as $value) {
foreach ($value as $transition => $time) {
$ret[] = array('transition' => $transition, 'time' => e);
}
}
return $ret;
})
->end()
->prototype('array')
->children()
->scalarNode('transition')->end()
->scalarNode('time')->end()
->end()
->end()
->end()
->end()
;