function NodeTermData::query

Called to implement a relationship in a query.

Overrides RelationshipPluginBase::query

File

core/modules/taxonomy/src/Plugin/views/relationship/NodeTermData.php, line 92

Class

NodeTermData

Relationship handler to return the taxonomy terms of nodes.

Namespace

Code

public function query() {
    $this->ensureMyTable();
    $def = $this->definition;
    $def['table'] = 'taxonomy_term_field_data';
    if (!array_filter($this->options['vids'])) {
        $taxonomy_index = $this->query
            ->addTable('taxonomy_index', $this->relationship);
        $def['left_table'] = $taxonomy_index;
        $def['left_field'] = 'tid';
        $def['field'] = 'tid';
        $def['type'] = empty($this->options['required']) ? 'LEFT' : 'INNER';
    }
    else {
        // If vocabularies are supplied join a subselect instead
        $def['left_table'] = $this->tableAlias;
        $def['left_field'] = 'nid';
        $def['field'] = 'nid';
        $def['type'] = empty($this->options['required']) ? 'LEFT' : 'INNER';
        $def['adjusted'] = TRUE;
        $query = Database::getConnection()->select('taxonomy_term_field_data', 'td');
        $query->addJoin($def['type'], 'taxonomy_index', 'tn', '[tn].[tid] = [td].[tid]');
        $query->condition('td.vid', array_filter($this->options['vids']), 'IN');
        if (empty($this->query->options['disable_sql_rewrite'])) {
            $query->addTag('taxonomy_term_access');
        }
        $query->fields('td');
        $query->fields('tn', [
            'nid',
        ]);
        $def['table formula'] = $query;
    }
    $join = \Drupal::service('plugin.manager.views.join')->createInstance('standard', $def);
    // use a short alias for this:
    $alias = $def['table'] . '_' . $this->table;
    $this->alias = $this->query
        ->addRelationship($alias, $join, 'taxonomy_term_field_data', $this->relationship);
}