/**
* Builds and returns string with list of field names
*
* @param Database_Query $oQuery
* @return string
*/
protected function buildFieldListString(Database_Query $oQuery)
{
$aFields = $oQuery->fields();
if (empty($aFields)) {
return '*';
}
$aFields = array();
foreach ($oQuery->fields() as $aField) {
// if array is not assoc we treat its values as field names
if (is_null($aField[1])) {
$aFields[] = $this->markDatabaseObject($aField[0]);
} else {
$aFields[] = sprintf('%s AS %s', $this->markDatabaseObject($aField[0]), $this->escapeString($aField[1]));
}
}
// foreach
return implode(', ', $aFields);
}