306 lines
12 KiB
PHP
306 lines
12 KiB
PHP
<?php
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/**
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* @file
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* Mapper that handles any fields added by the References module (node_reference, user_reference)
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*
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* Code is effectively a port of the mapper_for_nodereference_field patch to drupal 7, and borrows
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* heavily from the nodereference patch
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*
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*/
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/**
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* Implements hook_feeds_parser_sources_alter().
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*/
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function node_reference_feeds_parser_sources_alter(&$sources, $content_type) {
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if (!empty($content_type)) {
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$fields = field_info_fields();
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foreach ($fields as $field) {
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if ($field['type'] == 'node_reference' && isset($field['bundles']['node']) && in_array($content_type, $field['bundles']['node'])) {
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$sources['parent:node_reference:'. $field['field_name']] = array(
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'name' => t('Feed node: Node Reference (nid): @field_name', array('@field_name' => $field['field_name'])),
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'description' => t('Node References from the parent feed node.'),
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'callback' => 'node_reference_feeds_get_source',
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);
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}
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}
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}
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return $sources;
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}
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/**
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* Callback for mapping parent node references to child node reference values.
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*
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* @param $source
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* A FeedsSource object.
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* @param $result
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* FeedsParserResult object.
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* @param $key
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* The key as defined in the _feeds_parser_sources_alter() hook defined above.
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* @return array
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* The node ids that the parent node references.
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*/
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function node_reference_feeds_get_source(FeedsSource $source, FeedsParserResult $result, $key) {
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if ($node = node_load($source->feed_nid)) {
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$results = array();
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$field = substr($key, 22);
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if (!empty($node->{$field}['und'])) {
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foreach ($node->{$field}['und'] as $delta => $value) {
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$results[] = $value['nid'];
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}
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}
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return $results;
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}
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}
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/**
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* Implements hook_feeds_processor_targets_alter() for node_reference fields
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*
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* @see FeedsNodeProcessor::getMappingTargets().
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*/
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function node_reference_feeds_processor_targets_alter(&$targets, $entity_type, $bundle_name) {
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foreach (field_info_instances($entity_type, $bundle_name) as $name => $instance) {
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$info = field_info_field($name);
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if ($info['type'] == 'node_reference') {
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$targets[$name . ':title'] = array(
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'name' => $instance['label'] . t(' (Node reference by node title)'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by node title.', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':nid'] = array(
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'name' => $instance['label'] . t(' (Node reference by node ID)'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by node ID.', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':url'] = array(
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'name' => $instance['label'] . t(' (Node reference by Feeds URL)'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by Feeds URL.', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':guid'] = array(
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'name' => $instance['label'] . t(' (Node reference by Feeds GUID)'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by Feeds GUID.', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':title:duplicates'] = array(
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'name' => $instance['label'] . t(' (Node reference by node title) -- allow duplicate nodes'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by node title. This target allows duplicate nodes (nodes can appear more than once in a field).', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':nid:duplicates'] = array(
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'name' => $instance['label'] . t(' (Node reference by node ID) -- allow duplicate nodes'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by node ID. This target allows duplicate nodes (nodes can appear more than once in a field).', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':url:duplicates'] = array(
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'name' => $instance['label'] . t(' (Node reference by Feeds URL) -- allow duplicate nodes'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by Feeds URL.', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':guid:duplicates'] = array(
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'name' => $instance['label'] . t(' (Node reference by Feeds GUID) -- allow duplicate nodes'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by Feeds GUID.', array('@label' => $instance['label'])),
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'real_target' => $name);
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}
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}
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}
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/**
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* Implements hook_feeds_processor_targets_alter() for user_reference fields
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*
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* @see FeedsNodeProcessor::getMappingTargets().
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*
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*/
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function user_reference_feeds_processor_targets_alter(&$targets, $entity_type, $bundle_name) {
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foreach (field_info_instances($entity_type, $bundle_name) as $name => $instance) {
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$info = field_info_field($name);
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if ($info['type'] == 'user_reference') {
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$targets[$name . ':name'] = array(
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'name' => $instance['label'] . t(' (User reference by user name)'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the user matched by user name. ', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':uid'] = array(
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'name' => $instance['label'] . t(' (User reference by user ID)'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the user matched by user ID.', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':url'] = array(
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'name' => $instance['label'] . t(' (User reference by Feeds URL)'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by Feeds URL.', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':guid'] = array(
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'name' => $instance['label'] . t(' (User reference by Feeds GUID)'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by Feeds GUID.', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':name:duplicates'] = array(
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'name' => $instance['label'] . t(' (User reference by user name) -- allow duplicate users'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the user matched by user name. This target allows duplicate users (users can appear more than once in a field).', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':uid:duplicates'] = array(
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'name' => $instance['label'] . t(' (User reference by user ID) -- allow duplicate users'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the user matched by user ID. This target allows duplicate users (users can appear more than once in a field).', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':url:duplicates'] = array(
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'name' => $instance['label'] . t(' (User reference by Feeds URL) -- allow duplicate users'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by Feeds URL.', array('@label' => $instance['label'])),
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'real_target' => $name);
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$targets[$name . ':guid:duplicates'] = array(
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'name' => $instance['label'] . t(' (User reference by Feeds GUID) -- allow duplicate users'),
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'callback' => 'references_feeds_set_target',
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'description' => t('The @label field of the node matched by Feeds GUID.', array('@label' => $instance['label'])),
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'real_target' => $name);
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}
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}
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}
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/**
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* Callback for mapping both node reference and user_reference fields
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*
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* Implementation of hook_feeds_set_target().
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*
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* @param $source
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* A FeedsSource object.
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* @param $entity
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* The entity to map to.
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* @param $target
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* The target key on $entity to map to.
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* @param $value
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* The value to map. Can be an array or a string.
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*/
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function references_feeds_set_target($source, $entity, $target, $value) {
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if (empty($value)) {
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return;
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}
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// Handle comma delimited or non-multiple values.
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if (!is_array($value)) {
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$value = array($value);
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}
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// Determine the field we are matching against, and whether duplicates are allowed.
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$target_info = explode(':', $target, 3);
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if (sizeof($target_info) == 3) {
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list($target, $match_key, $duplicates) = $target_info;
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}
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else {
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list($target, $match_key) = $target_info;
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}
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// Load field definition.
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$info = field_info_field($target);
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// Parameters to handle differences between node references and user references
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if ($info['type'] == 'user_reference') {
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$idname = 'uid';
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$typename = 'user';
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$validate_function = 'user_reference_potential_references';
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}
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else {
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$idname = 'nid';
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$typename = 'node';
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$validate_function = 'node_reference_potential_references';
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}
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$field = isset($entity->$target) ? $entity->$target : array();
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if (!isset($field['und'])) {
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$field['und'] = array();
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}
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// Match values against nodes and add to field.
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foreach ($value as $v) {
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// Create options.
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$options = array(
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'string' => $v,
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'match' => 'equals',
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'ids' => array(),
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'limit' => 1,
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);
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switch ($match_key) {
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case 'title':
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case 'name':
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// Validate node title or user name.
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if ((is_string($options['string']) && $options['string'] != '') || is_numeric($options['string'])) {
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// Lookup potential exact matches for the value (limit to one result).
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$matches = $validate_function($info,$options);
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// Use the first element of the potential matches.
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$options['ids']= key($matches);
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}
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// Alert if no match is found.
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if (empty($options['ids'])) {
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drupal_set_message(t('%title does not match an existing '.$typename, array('%title' => $options['string'])));
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}
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break;
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case 'nid':
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case 'uid':
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// Make sure it is a positive integer.
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if ((is_int($options['string']) || ctype_digit($options['string'])) && $options['string'] > 0 && $options['string'] !== '') {
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// Make sure it is a valid node id or user id for this field.
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$matches = $validate_function($info, array($options['string']));
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foreach ($matches as $k => $v) {
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if ($options['string'] == $k) {
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$options['ids'] = $k;
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}
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}
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}
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// Alert if no match is found.
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if (empty($options['ids'])) {
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drupal_set_message(t('%id is not a valid '.$typename.' id for this field.', array('%id' => $options['string'])));
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}
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break;
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case 'guid':
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case 'url':
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// get the value from table feeds-item.
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$result = db_query('SELECT f.entity_id FROM {feeds_item} f WHERE f.'.$match_key.' = :v', array( ':v' => $v) );
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$options['ids'] = $result->fetchField();
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// Alert if no match is found.
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if (empty($options['ids'])) {
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drupal_set_message(t('%id is not a valid '.$typename.' id for this field.', array('%id' => $v)));
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}
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break;
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}
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if (!empty($options['ids'])) {
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$reference = array($idname => $options['ids']);
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if (!empty($duplicates)) {
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// Add the reference, ignoring duplicates.
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$field['und'][] = $reference;
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}
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else if (!in_array($reference, $field['und'])) {
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// Add the reference only if it doesn't already exist.
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$field['und'][] = $reference;
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}
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if ($info['cardinality'] == 1) {
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break;
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}
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}
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}
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$entity->{$target} = $field;
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}
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