/**
* Indicate that the given index should be dropped.
*
* @param string|array $columns
* @return Blueprint
*/
public function dropIndex($columns = null)
{
$columns = $this->fluent($columns);
// Columns are passed as a default array.
if (is_array($columns) && is_int(key($columns))) {
// Transform the columns to the required array format.
$transform = [];
foreach ($columns as $column) {
$transform[$column] = $column . '_1';
}
$columns = $transform;
}
foreach ($columns as $column) {
$this->collection->dropIndex($column);
}
return $this;
}