/**
* Returns an array of entity arrays, where the keys are the entity IDs.
*
* @param string $entity The name of the entities to get (e.g. "agency").
* @param array $aParams Map column => value.
* @param boolean $allFields Return *all* fields the entity has, or just the default fields?
* @param string $key The primary key field name.
* @return array An array of entity records.
*/
function _getEntities($entity, $aParams, $allFields = false, $key = null)
{
if (empty($key)) {
$key = "{$entity}_id";
}
$aColumns = SqlBuilder::_getColumns($entity, $aParams, $allFields);
$aTables = SqlBuilder::_getTables($entity, $aParams);
$aLimitations = array_merge(SqlBuilder::_getLimitations($entity, $aParams), SqlBuilder::_getTableLimitations($aTables, $aParams));
$aGroupColumns = SqlBuilder::_getGroupColumns($entity, $aParams);
$aLeftJoinedTables = SqlBuilder::_getLeftJoinedTables($entity, $aParams);
return SqlBuilder::_select($aColumns, $aTables, $aLimitations, $aGroupColumns, $key, $aLeftJoinedTables);
}