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Allow reference field properties to be preserved after expanding the values. #252

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Allow reference field properties to be preserved after expanding the values. #252

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1a8b13e
Allow properties to be preserved after expanding the values.
idimopoulos Oct 13, 2022
7efc5bc
Use the main property key instead of hardcoding 'target_id'.
idimopoulos Oct 13, 2022
0534b25
Fix codesniffs.
idimopoulos Oct 13, 2022
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35 changes: 23 additions & 12 deletions src/Drupal/Driver/Fields/Drupal8/EntityReferenceHandler.php
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Original file line number Diff line number Diff line change
Expand Up @@ -11,12 +11,9 @@ class EntityReferenceHandler extends AbstractHandler {
* {@inheritdoc}
*/
public function expand($values) {
$return = [];
$entity_type_id = $this->fieldInfo->getSetting('target_type');
$entity_definition = \Drupal::entityTypeManager()->getDefinition($entity_type_id);

$id_key = $entity_definition->getKey('id');

// Determine label field key.
if ($entity_type_id !== 'user') {
$label_key = $entity_definition->getKey('label');
Expand All @@ -36,24 +33,38 @@ public function expand($values) {
$target_bundle_key = $entity_definition->getKey('bundle');
}

foreach ((array) $values as $value) {
$query = \Drupal::entityQuery($entity_type_id);
$or = $query->orConditionGroup();
$or->condition($id_key, $value)
->condition($label_key, $value);
$query->condition($or);
// The values can either be a direct label reference or a complex array
// containing multiple properties of the field. For example, the file field
// contains a target_id, a description and a display property. If the
// target_id exists as a property, we assume that the other properties are
// also present. Retrieve all labels and load the entities.
$main_property = $this->fieldInfo->getMainPropertyName();
$labels = array_map(function ($value) use ($main_property) {
return is_array($value) && isset($value[$main_property]) ? $value[$main_property] : $value;
}, $values);

foreach ((array) $labels as $index => $label) {
$query = \Drupal::entityQuery($entity_type_id)->condition($label_key, $label);
$query->accessCheck(FALSE);
if ($target_bundles && $target_bundle_key) {
$query->condition($target_bundle_key, $target_bundles, 'IN');
}
if ($entities = $query->execute()) {
$return[] = array_shift($entities);
$entity_id = array_shift($entities);
// Replace the entity IDs in the original array so that other properties
// are not lost.
if (is_array($values[$index]) && isset($values[$index][$main_property])) {
$values[$index][$main_property] = $entity_id;
}
else {
$values[$index] = $entity_id;
}
}
else {
throw new \Exception(sprintf("No entity '%s' of type '%s' exists.", $value, $entity_type_id));
throw new \Exception(sprintf("No entity '%s' of type '%s' exists.", $label, $entity_type_id));
}
}
return $return;
return $values;
}

/**
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