entityreference_autocreate.feeds.inc in Entityreference Autocreate 7

Feeds mapping implementation for the Entity reference module.

OVERRIDE the one provided by entityreference to allow lookup by string title and autocreate if new.

Fully stolen from entityreference/entityreference.feeds.inc

Not only is this available to feeds, but as raw_mapper also uses Feeds for CRUD, it should work there too.

This will only work if the field settings have the "Autocreate target if not found" option seleted in the UI as well.

File

entityreference_autocreate.feeds.inc

<?php

/**
 * @file
 * Feeds mapping implementation for the Entity reference module.
 *
 * OVERRIDE the one provided by entityreference to allow lookup by string title
 * and autocreate if new.
 *
 * Fully stolen from entityreference/entityreference.feeds.inc
 *
 * Not only is this available to feeds, but as raw_mapper also uses Feeds for
 * CRUD, it should work there too.
 *
 * This will only work if the field settings have the
 * "Autocreate target if not found" option seleted in the UI as well.
 */

/**
 * Announce that we know how to set data on an entityreference field.
 *
 * Given a list of target fields, find any entityreferences and attach
 * ourselves as a handler callback for setting values.
 *
 * If the entityreference widget settings have this option on already, that is.
 *
 * Implements hook_feeds_processor_targets_alter().
 *
 * @see FeedsNodeProcessor::getMappingTargets()
 */
function entityreference_autocreate_feeds_processor_targets_alter(&$targets, $entity_type, $bundle_name) {

  // This only ever gets called when you visit the UI
  // admin/structure/feeds/{feed_name}/mapping
  foreach (field_info_instances($entity_type, $bundle_name) as $name => $instance) {
    $field_info = field_info_field($name);
    if ($field_info['type'] == 'entityreference') {

      // Check if the UI option is on also.
      if (empty($instance['widget']['settings']['entityreference_autocreate'])) {
        continue;
      }
      $targets[$name] = array(
        'name' => t('!label by title lookup (creating if needed)', array(
          '!label' => check_plain($instance['label']),
        )),
        'callback' => 'entityreference_autocreate_feeds_set_target',
        'description' => t('The field instance @label of @id', array(
          '@label' => $instance['label'],
          '@id' => $name,
        )),
      );
    }
  }
}

/**
 * Entity reference callback for mapping.
 *
 * When the callback is invoked, $target contains the name of the field the
 * user has decided to map to and $value contains the value of the feed item
 * element the user has picked as a source.
 *
 * @param StdClass $source
 *   A FeedsSource object.
 * @param StdClass $entity
 *   The entity to map to.
 * @param string $target
 *   The target key on $entity to map to.
 * @param array $value
 *   The value to map. MUST be an array.
 * @param array $mapping
 *   Array of mapping settings for current value.
 * @param bool $input_format
 *   TRUE if an input format should be applied.
 */
function entityreference_autocreate_feeds_set_target($source, $entity, $target, $value, $mapping = array(), $input_format = FALSE) {

  // Don't do anything if we weren't given any data.
  if (empty($value)) {
    return;
  }

  // Assume that the passed in value could really be any number of values.
  if (is_array($value)) {
    $values = $value;
  }
  else {
    $values = array(
      $value,
    );
  }

  // Get some useful field information.
  $field_info = field_info_field($target);

  // Set the language of the field depending on the mapping.
  $language = isset($mapping['language']) ? $mapping['language'] : LANGUAGE_NONE;

  // Iterate over all values.
  $iterator = 0;

  // Re-use the existing field data if it's set.
  $field = isset($entity->{$target}) ? $entity->{$target} : array();
  foreach ($values as $value) {

    // Only process if this value was set for this instance.
    if ($value) {

      // Use the same processes that autocomplete would,
      // scan for a nid inside ()
      // or look for an exact text mach
      // or if not found, make one up.
      // Abort if more than one exact match was returned.
      //
      // If the widget is tags style, the title string may need exploding,
      // and we may create more than one entry.
      // ASSUME this may need to happen each time, as it's really hard to tell
      // if it really should. tags is a widget setting and we know nothing
      // about the widget.
      //
      $titles = drupal_explode_tags($value);

      // Will at least be an array of 1.
      foreach ($titles as $title) {
        if ($target_id = entityreference_autocreate_get_entity_by_title($field_info, $title)) {
          $field[$language][$iterator]['target_id'] = $target_id;
          $iterator++;
        }
        else {

          // Failed to create the target for some reason.
        }
      }
    }

    // Break out of the loop if this field is single-valued.
    if ($field_info['cardinality'] == 1) {
      break;
    }
  }

  // Add the field to the entity definition.
  $entity->{$target} = $field;
}

Functions

Name	Description
entityreference_autocreate_feeds_processor_targets_alter	Announce that we know how to set data on an entityreference field.
entityreference_autocreate_feeds_set_target	Entity reference callback for mapping.