/**
* Returns -1 if $object1 < $object2, 1 if $object1 > $object2, or 0 if $object1 == $object2
*
* @param $object1 object
* @param $object2 object
* @return integer -1, 0 or 1
*/
public function compare($object1, $object2)
{
if (is_object($object1) && is_object($object2)) {
// Comparable objects : use their compare method
if ($this->use_compare_method && $object1 instanceof Comparable && (is_a($object1, get_class($object2)) || is_a($object2, get_class($object1)))) {
return call_user_func_array([get_class($object1), 'compare'], [$object1, $object2]);
} else {
$path1 = new Object_Property_Path($object1);
$path2 = new Object_Property_Path($object2);
foreach ($this->properties_path as $property_path) {
if ($reverse = $property_path instanceof Reverse) {
$property_path = $property_path->column;
}
$value1 = $path1->getValue($property_path);
$value2 = $path2->getValue($property_path);
if (is_object($value1) || is_object($value2)) {
$comparator = new Comparator(get_class($value1));
$result = $comparator->compare($value1, $value2);
} else {
$result = $value1 < $value2 ? $reverse ? 1 : -1 : ($value1 > $value2 ? $reverse ? -1 : 1 : 0);
}
if ($result) {
return $result;
}
}
return 0;
}
}
// at least one of the two values is not an object : compare as values
if (is_object($object1)) {
$object1 = strval($object1);
}
if (is_object($object2)) {
$object2 = strval($object2);
}
return $object1 < $object2 ? -1 : ($object1 > $object2 ? 1 : 0);
}
/**
* Sort a collection of objects using current sort columns configuration
*
* @param $objects object[]
* @return object[]
*/
public function sortObjects(&$objects)
{
$comparator = new Comparator($this->class_name, $this->columns);
$comparator->use_compare_method = false;
$comparator->sort($objects);
return $objects;
}
