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<?php
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/**
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* @file
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* Feeds hooks.
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*/
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/**
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* Implements hook_feeds_processor_targets().
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*/
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function feeds_feeds_processor_targets($entity_type, $bundle) {
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// Record that we've been called.
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// @see _feeds_feeds_processor_targets_alter()
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$called = &drupal_static('feeds_feeds_processor_targets', FALSE);
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$called = TRUE;
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return array();
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}
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/**
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* Implements hook_feeds_processor_targets_alter().
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*/
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function feeds_feeds_processor_targets_alter(array &$targets, $entity_type, $bundle) {
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// This hook gets called last, so that we normalize the whole array.
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feeds_normalize_targets($targets);
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// Since a hook can be invoked multiple times during a request, reset the
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// "feeds_feeds_processor_targets" variable.
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// @see _feeds_feeds_processor_targets_alter()
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drupal_static_reset('feeds_feeds_processor_targets');
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}
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/**
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* Normalizes the target array.
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*
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* @param array &$targets
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* The Feeds target array.
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*/
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function feeds_normalize_targets(array &$targets) {
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static $defaults = array(
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'description' => '',
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'summary_callbacks' => array(),
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'form_callbacks' => array(),
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'preprocess_callbacks' => array(),
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'unique_callbacks' => array(),
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);
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foreach (array_keys($targets) as $target) {
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$targets[$target] += $defaults;
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// Filter out any uncallable keys.
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_feeds_filter_callback_arrays($targets[$target]);
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}
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}
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/**
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* Filters the callbacks of a single target array.
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*
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* @param array &$target
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* The target arary.
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*/
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function _feeds_filter_callback_arrays(array &$target) {
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// Migrate keys summary_callback and form_callback to the new keys.
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if (isset($target['summary_callback'])) {
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$target['summary_callbacks'][] = $target['summary_callback'];
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}
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if (isset($target['form_callback'])) {
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$target['form_callbacks'][] = $target['form_callback'];
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}
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unset($target['summary_callback'], $target['form_callback']);
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static $callback_keys = array(
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'summary_callbacks',
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'form_callbacks',
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'preprocess_callbacks',
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'unique_callbacks',
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);
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// Filter out any incorrect callbacks. Do it here so it only has to be done
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// once.
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foreach ($callback_keys as $callback_key) {
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$target[$callback_key] = array_filter($target[$callback_key], 'is_callable');
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}
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// This makes checking in FeedsProcessor::mapToTarget() simpler.
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if (empty($target['callback']) || !is_callable($target['callback'])) {
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unset($target['callback']);
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}
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}
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