public function transform(FormField $field)
{
// Look for a performXXTransformation() method on the field itself.
// performReadonlyTransformation() is a pretty commonly applied method.
// Otherwise, look for a transformXXXField() method on this object.
// This is more commonly done in custom transformations
// We iterate through each array simultaneously, looking at [0] of both, then [1] of both.
// This provides a more natural failover scheme.
$transNames = array_reverse(array_map(function ($name) {
return ClassInfo::shortName($name);
}, array_values(ClassInfo::ancestry($this->class))));
$fieldClasses = array_reverse(array_map(function ($name) {
return ClassInfo::shortName($name);
}, array_values(ClassInfo::ancestry($field->class))));
$len = max(sizeof($transNames), sizeof($fieldClasses));
for ($i = 0; $i < $len; $i++) {
// This is lets fieldClasses be longer than transNames
if (!empty($transNames[$i])) {
$funcName = 'perform' . $transNames[$i];
if ($field->hasMethod($funcName)) {
//echo "<li>$field->class used $funcName";
return $field->{$funcName}($this);
}
}
// And this one does the reverse.
if (!empty($fieldClasses[$i])) {
$funcName = 'transform' . $fieldClasses[$i];
if ($this->hasMethod($funcName)) {
//echo "<li>$field->class used $funcName";
return $this->{$funcName}($field);
}
}
}
throw new \BadMethodCallException("FormTransformation:: Can't perform '{$this->class}' on '{$field->class}'");
}
/**
* Returns a link to this controller. Overload with your own Link rules if they exist.
*
* @param string $action Optional action
* @return string
*/
public function Link($action = null)
{
return Controller::join_links(ClassInfo::shortName($this), $action, '/');
}
