function EntityReverse::query

Called to implement a relationship in a query.

Overrides RelationshipPluginBase::query

File

core/modules/views/src/Plugin/views/relationship/EntityReverse.php, line 61

Class

EntityReverse

A relationship handlers which reverse entity references.

Namespace

Code

public function query() {
    $this->ensureMyTable();
    // First, relate our base table to the current base table to the
    // field, using the base table's id field to the field's column.
    $views_data = Views::viewsData()->get($this->table);
    $left_field = $views_data['table']['base']['field'];
    $first = [
        'left_table' => $this->tableAlias,
        'left_field' => $left_field,
        'table' => $this->definition['field table'],
        'field' => $this->definition['field field'],
        'adjusted' => TRUE,
    ];
    if (!empty($this->options['required'])) {
        $first['type'] = 'INNER';
    }
    if (!empty($this->definition['join_extra'])) {
        $first['extra'] = $this->definition['join_extra'];
    }
    $first_join = $this->joinManager
        ->createInstance('standard', $first);
    $this->first_alias = $this->query
        ->addTable($this->definition['field table'], $this->relationship, $first_join);
    // Second, relate the field table to the entity specified using
    // the entity id on the field table and the entity's id field.
    $second = [
        'left_table' => $this->first_alias,
        'left_field' => 'entity_id',
        'table' => $this->definition['base'],
        'field' => $this->definition['base field'],
        'adjusted' => TRUE,
    ];
    if (!empty($this->options['required'])) {
        $second['type'] = 'INNER';
    }
    $second_join = $this->joinManager
        ->createInstance('standard', $second);
    $second_join->adjusted = TRUE;
    // Use a short alias for this:
    $alias = $this->definition['field_name'] . '_' . $this->table;
    $this->alias = $this->query
        ->addRelationship($alias, $second_join, $this->definition['base'], $this->relationship);
}