function party_handler_relationship_party_attached_eid::query in Party 7

Same name and namespace in other branches

1. 8.2 includes/views/party_handler_relationship_party_attached_eid.inc \party_handler_relationship_party_attached_eid::query()

Called to implement a relationship in a query.

Overrides views_handler_relationship::query

File

includes/views/party_handler_relationship_party_attached_eid.inc, line 67

Relationship for party data sets, relating parties to the entities in a set.

Class

party_handler_relationship_party_attached_eid

@file Relationship for party data sets, relating parties to the entities in a set.

Code

function query() {

  // Get essential settings and data.
  $data_set_name = $this->options['data_set'];
  $entity_type = $this->definition['entity_type'];
  $entity_info = entity_get_info($entity_type);

  // Add the table that we are defined on.
  // We don't use $this->ensure_my_table() because that calls
  // $query->ensure_table which only allows us to add a table once.
  // Instead, we may need to add the {party_attached_entity} table
  // multiple times, once for each copy of this relationship.
  // This is the same as the way filtering on different taxonomy terms needs
  // to join to taxonomy_term_data multiple times.
  $join_cpae = new views_join();
  $definition_cpae = array(
    'table' => 'party_attached_entity',
    'field' => 'pid',
    'left_table' => 'party',
    'left_field' => 'pid',
    'extra' => array(
      array(
        'field' => 'data_set',
        'value' => $data_set_name,
      ),
    ),
  );
  if ($this->options['delta'] != 'all') {
    $definition_cpae['extra'][] = array(
      'field' => 'delta',
      'value' => $this->options['delta'],
    );
  }
  $join_cpae->definition = $definition_cpae;
  $join_cpae
    ->construct();

  // Make a unique alias for this table.
  // @todo: It would be nice to have either entity type or data set name in
  // this for debugging, but it will cause field aliases to get truncated!
  $alias_cpae = 'party_attached_entity_' . $this->position;
  $alias_cpae = $this->query
    ->add_table('party_attached_entity', $this->relationship, $join_cpae, $alias_cpae);

  // Now add the relationship to the attached entity table.
  $def = array();

  // The relationship joins to the base table given data set's entity type.
  $def['table'] = $entity_info['base table'];
  $def['field'] = $entity_info['entity keys']['id'];
  $def['left_table'] = $alias_cpae;
  $def['left_field'] = 'eid';
  $alias = $def['table'] . '_' . $this->table;
  $join = new views_join();
  $join->definition = $def;
  $join
    ->construct();
  $join->adjusted = TRUE;
  $this->alias = $this->query
    ->add_relationship($alias, $join, $this->definition['base'], $this->relationship);
}