/**
* collects filter value from request variables (GET or POST).
*/
protected function collectRequestValue()
{
$value = Validation::collectRequestVar($this->key);
if ($value) {
$this->value = $value;
return;
}
}
/**
* Specialized routine for collectin the "display listings" setting.
* - Don't check cookies for this filter's value.
* - If the input value is set to "filter", set the object's property value
* to TRUE.
*/
protected function collectDisplayListingsSetting()
{
/* don't get "display listings" value from cookies */
$this->displayListings->collectValue(false);
if ($this->displayListings->value === null) {
$str_value = Validation::collectRequestVar($this->displayListings->key);
if (strtolower($str_value) == "filter") {
$this->displayListings->value = true;
}
}
}
/**
* Searches POST, GET and session data, in that order, for a property
* corresponding to $key.
* @param string $key Key of the variable value to collect.
* @param string $filter Filter token corresponding to the 3rd parameter of
* PHP's built-in filter_input() routine.
* @return mixed Value found for the requested key. Returns an empty string
* if none of the collections contain the requested key.
*/
public static function collectStringInput($key, $filter = FILTER_SANITIZE_STRING)
{
$value = Validation::collectRequestVar($key, $filter);
if (!$value && isset($_SESSION[$key]) && strlen(trim($_SESSION[$key])) > 0) {
$value = trim($_SESSION[$key]);
}
return $value;
}
