I have a file containing a list of the US states.
Alabama
Alaska
etc ..
In symfony 2.0 I used ChoiceListInterface.php to use it in my form. I simply wrote this :
<?php
namespace MyBundle\Form;
use Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface;
class StateChoiceList implements ChoiceListInterface
{
public function getChoices()
{
$lines = file('listes/us_states.txt', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
// fill the array
$arr = array();
foreach ($lines as $line) {
$arr[$line] = $line;
}
return $arr;
}
}
But now there is 7 other functions to implement in ChoiceListInterface :
public function getValues();
public function getPreferredViews();
public function getRemainingViews();
public function getValuesForChoices(array $choices);
public function getIndicesForChoices(array $choices);
public function getIndicesForValues(array $values);
I have read the documentation http://api.symfony.com/2.1/Symfony/Component/Form/Extension/Core/ChoiceList/ChoiceList.html but in my case I find it unclear and I really don't understand how to implement them.
Someone could help ? Thanks a lot
