/**
* Process ordering query.
*
* @param Query $query The query object.
* @param string $ordering The ordering string.
* @param string $direction ASC or DESC.
*
* @return void
*/
protected function processOrdering(Query $query, $ordering = null, $direction = null)
{
$ordering = $this->state->get('list.ordering', $ordering);
$this->state->set('list.ordering', $ordering);
// If no ordering set, ignore this function.
if (!$ordering) {
return;
}
$self = $this;
$direction = $this->state->get('list.direction', $direction);
$this->state->set('list.direction', $direction);
$ordering = explode(',', $ordering);
// Add quote
$ordering = array_map(function ($value) use($query, $self) {
// Remove extra spaces
preg_replace('/\\s+/', ' ', $value);
$value = explode(' ', trim($value));
// Check it is an allowed field.
if (!$self->filterField($value[0])) {
return '';
}
$field = $this->mapField($value[0]);
if (!empty($field) && $field[strlen($field) - 1] != ')') {
$field = $query->quoteName($field);
}
// $value[1] is direction
if (isset($value[1])) {
return $field . ' ' . $value[1];
}
return $field;
}, $ordering);
$ordering = array_filter($ordering, 'strlen');
$ordering = implode(', ', $ordering);
if (!$ordering) {
return;
}
$query->order($ordering . ' ' . $direction);
}