/**
* Returns the "casting helper" for the given field and the casting class name. A casting helper
* is a piece of PHP code that, when evaluated, will create an object to represent the value.
*
* The return value is an map containing two values:
* - className: The name of the class (eg: 'Varchar')
* - castingHelper: The casting helper (eg: 'return new Varchar($fieldName);')
*
* @param string $field The field name
* @return array
*/
public function castingHelperPair($field)
{
$class = $this->class;
if (!isset(self::$castingHelperPair_cache[$class])) {
if ($this->failover) {
$this->failover->buildCastingHelperCache(self::$castingHelperPair_cache[$class]);
}
$this->buildCastingHelperCache(self::$castingHelperPair_cache[$class]);
self::$castingHelperPair_cache[$class]['ClassName'] = array("className" => "Varchar", "castingHelper" => "return new Varchar(\$fieldName);");
}
return isset(self::$castingHelperPair_cache[$class][$field]) ? self::$castingHelperPair_cache[$class][$field] : null;
}
