/**
* Prepares a table reference for lookup.
*
* Ensures all reference keys are set and properly formatted.
*
* @param \Zend\DB\Table\AbstractTable $dependentTable
* @param \Zend\DB\Table\AbstractTable $parentTable
* @param string $ruleKey
* @return array
*/
protected function _prepareReference(Table\AbstractTable $dependentTable, Table\AbstractTable $parentTable, $ruleKey)
{
$parentTableName = get_class($parentTable) === 'Zend_Db_Table' ? $parentTable->getDefinitionConfigName() : get_class($parentTable);
$map = $dependentTable->getReference($parentTableName, $ruleKey);
if (!isset($map[Table\AbstractTable::REF_COLUMNS])) {
$parentInfo = $parentTable->info();
$map[Table\AbstractTable::REF_COLUMNS] = array_values((array) $parentInfo['primary']);
}
$map[Table\AbstractTable::COLUMNS] = (array) $map[Table\AbstractTable::COLUMNS];
$map[Table\AbstractTable::REF_COLUMNS] = (array) $map[Table\AbstractTable::REF_COLUMNS];
return $map;
}
