/**
* Parse the url params in params array searching for some expected params. If someone is found modify the array.
* $params array is referenced.
*
* @internal param array $params Get params.
* @return array
*/
protected function parseParams()
{
$expected_params = array();
$expected_url_params = $this->getParamsDefinition();
if (empty($expected_url_params)) {
// The controller didn't declare any parameters, nothing to do.
return array();
}
// Build "reverse" keys array.
foreach ($expected_url_params as $key => $value) {
$expected_url_keys[$value['internal_key']] = $key;
// Check if a "default_value" is used when there aren't any parameters in the URL.
if (isset($expected_url_params[$key]['default_value'])) {
$expected_params[$key] = $expected_url_params[$key]['default_value'];
}
}
if (empty($expected_params) && (empty($this->params['params']) || empty($expected_url_params))) {
return array();
}
// Expected params:
$max = count($this->params['params']) - 1;
// -1 because the last param never is a param key and to avoid asking a non existing key.
if (count($expected_url_params)) {
for ($i = 0; $i < $max; $i++) {
$param = $this->params['params'][$i];
if (1 == strlen($param) && filter_var($param, FILTER_DEFAULT) && array_key_exists($param, $expected_url_keys) && (false !== filter_var($this->params['params'][$i + 1], FILTER_DEFAULT) && '' != filter_var($this->params['params'][$i + 1], FILTER_DEFAULT))) {
$value = $this->params['params'][$i + 1];
if ($expected_url_params[$expected_url_keys[$param]]['is_list']) {
$value = explode(',', $value);
}
if ($expected_url_params[$expected_url_keys[$param]]['apply_translation']) {
// Save current domain:
$current_domain = $this->i18n->getDomain();
$this->i18n->setDomain('urlparams', $this->language);
if (is_array($value)) {
// Try to translate all the params.
foreach ($value as &$item) {
$item = $this->i18n->getReverseTranslation($item);
}
} else {
$value = $this->i18n->getReverseTranslation($value);
}
// Restore current domain:
$this->i18n->setDomain($current_domain, $this->language);
}
if (isset($expected_url_params[$expected_url_keys[$param]]['accepted_values'])) {
if (is_array($value) && count(array_diff($value, $expected_url_params[$expected_url_keys[$param]]['accepted_values']))) {
throw new Exception_404('The value passed in the parameters is not included in the "accepted_values"');
}
if (!is_array($value) && !in_array($value, $expected_url_params[$expected_url_keys[$param]]['accepted_values'])) {
throw new Exception_404('The value passed is the parameters is not included in the "accepted_values"');
}
}
$expected_params[$expected_url_keys[$param]] = $value;
unset($this->params['params'][$i]);
// Clean param
unset($this->params['params'][++$i]);
// Clean value
}
}
}
return $expected_params;
}