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<?php |
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namespace Drupal\Driver\Fields\Drupal7; |
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/** |
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* Entityreference field handler for Drupal 7. |
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*/ |
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class EntityreferenceHandler extends AbstractHandler { |
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/** |
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* {@inheritdoc} |
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*/ |
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public function expand($values) { |
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$entity_type = $this->getEntityType(); |
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$entity_info = entity_get_info($entity_type); |
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// For users set label to username. |
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if ($entity_type == 'user') { |
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$entity_info['entity keys']['label'] = 'name'; |
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} |
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$return = array(); |
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foreach ($values as $value) { |
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// Extract target id by step. Otherwise, try get entity searching |
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// by entity label. |
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if (is_array($value) && !empty($value['target_id']) && $this->entityExists($value['target_id'])) { |
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$target_id = $value['target_id']; |
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} |
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else { |
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$target_id = db_select($entity_info['base table'], 't') |
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->fields('t', array($entity_info['entity keys']['id'])) |
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->condition('t.' . $entity_info['entity keys']['label'], $value) |
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->execute()->fetchField(); |
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} |
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if ($target_id) { |
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$return[$this->language][] = array('target_id' => $target_id); |
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} |
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} |
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return $return; |
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} |
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/** |
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* Get entity type. |
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* |
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* @return string |
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* Entity type (node, user, taxonomy, etc). |
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*/ |
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public function getEntityType() { |
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return $this->fieldInfo['settings']['target_type']; |
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} |
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/** |
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* Check target id belongs to a real entity. |
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* |
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* @param int $target_id |
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* Target id. |
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* |
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* @return bool |
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* Entity exists? |
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*/ |
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public function entityExists($target_id) { |
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$entity_type = $this->getEntityType(); |
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$entity = entity_load_single($entity_type, $target_id); |
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return !empty($entity); |
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} |
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} |
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jhedstrom /
DrupalDriver
