/**
* @return array
*/
public function listColums()
{
if (!is_array($this->tableColumns)) {
$this->tableColumns = array();
try {
$columns = $this->model->showColums($this->table);
} catch (\Exception $e) {
throw new DbalException('Unable to list table columns.');
}
foreach ($columns as $column) {
$this->tableColumns[$column['Field']] = $column;
}
}
return $this->tableColumns;
}
