122 lines
3.8 KiB
PHP
122 lines
3.8 KiB
PHP
<?php
|
|
|
|
/**
|
|
* @file
|
|
* Feeds mapping implementation for the Entity reference module
|
|
*/
|
|
|
|
/**
|
|
* Implements hook_feeds_processor_targets_alter().
|
|
*
|
|
* @see FeedsNodeProcessor::getMappingTargets().
|
|
*/
|
|
function entityreference_feeds_processor_targets_alter(&$targets, $entity_type, $bundle_name) {
|
|
|
|
foreach (field_info_instances($entity_type, $bundle_name) as $name => $instance) {
|
|
$info = field_info_field($name);
|
|
if ($info['type'] == 'entityreference') {
|
|
$targets[$name] = array(
|
|
'name' => check_plain($instance['label']),
|
|
'callback' => 'entityreference_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 $source
|
|
* A FeedsSource object.
|
|
* @param $entity
|
|
* The entity to map to.
|
|
* @param $target
|
|
* The target key on $entity to map to.
|
|
* @param $value
|
|
* The value to map. MUST be an array.
|
|
* @param $mapping
|
|
* Array of mapping settings for current value.
|
|
* @param $input_format
|
|
* TRUE if an input format should be applied.
|
|
*/
|
|
function entityreference_feeds_set_target($source, $entity, $target, $value, $mapping, $input_format = FALSE) {
|
|
|
|
// Don't do anything if we weren't given any data.
|
|
if (empty($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.
|
|
$info = field_info_field($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;
|
|
$field = isset($entity->$target) ? $entity->$target : array();
|
|
foreach ($values as $value) {
|
|
|
|
// Only process if this value was set for this instance.
|
|
if ($value) {
|
|
|
|
// Fetch the entity ID resulting from the mapping table look-up.
|
|
$entity_id = db_query(
|
|
'SELECT entity_id FROM {feeds_item} WHERE guid = :guid',
|
|
array(':guid' => $value)
|
|
)->fetchField();
|
|
|
|
/*
|
|
* Only add a reference to an existing entity ID if there exists a
|
|
* mapping between it and the provided GUID. In cases where no such
|
|
* mapping exists (yet), don't do anything here. There may be a mapping
|
|
* defined later in the CSV file. If so, and the user re-runs the import
|
|
* (as a second pass), we can add this reference then. (The "Update
|
|
* existing nodes" option must be selected during the second pass.)
|
|
*/
|
|
if ($entity_id) {
|
|
|
|
// Assign the target ID.
|
|
$field[$language][$iterator]['target_id'] = $entity_id;
|
|
}
|
|
else /* there is no $entity_id, no mapping */ {
|
|
|
|
/*
|
|
* Feeds stores a hash of every line imported from CSVs in order to
|
|
* make the import process more efficient by ignoring lines it's
|
|
* already seen. We need to short-circuit this process in this case
|
|
* because users may want to re-import the same line as an update later
|
|
* when (and if) a map to a reference exists. So in order to provide
|
|
* this opportunity later, we need to destroy the hash.
|
|
*/
|
|
unset($entity->feeds_item->hash);
|
|
}
|
|
}
|
|
|
|
// Break out of the loop if this field is single-valued.
|
|
if ($info['cardinality'] == 1) {
|
|
break;
|
|
}
|
|
$iterator++;
|
|
}
|
|
|
|
// Add the field to the entity definition.
|
|
$entity->{$target} = $field;
|
|
}
|