0084d336
 Administrator
Importers CRUD
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<?php
/**
* A DataList that represents a relation.
*
* Adds the notion of a foreign ID that can be optionally set.
*
* @package framework
* @subpackage model
*/
abstract class RelationList extends DataList {
public function getForeignID() {
return $this->dataQuery->getQueryParam('Foreign.ID');
}
/**
* Returns a copy of this list with the ManyMany relationship linked to
* the given foreign ID.
*
* @param int|array $id An ID or an array of IDs.
*/
public function forForeignID($id) {
// Turn a 1-element array into a simple value
if(is_array($id) && sizeof($id) == 1) $id = reset($id);
// Calculate the new filter
$filter = $this->foreignIDFilter($id);
$list = $this->alterDataQuery(function($query, $list) use ($id, $filter){
// Check if there is an existing filter, remove if there is
$currentFilter = $query->getQueryParam('Foreign.Filter');
if($currentFilter) {
try {
$query->removeFilterOn($currentFilter);
}
catch (Exception $e) { /* NOP */ }
}
// Add the new filter
$query->setQueryParam('Foreign.ID', $id);
$query->setQueryParam('Foreign.Filter', $filter);
$query->where($filter);
});
return $list;
}
/**
* Returns a where clause that filters the members of this relationship to
* just the related items.
*
* @param $id (optional) An ID or an array of IDs - if not provided, will use the current ids as per getForeignID
*/
abstract protected function foreignIDFilter($id = null);
}
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