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<?php
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/**
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* @file
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* Support for migrate module.
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*
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* With Migrate 2.4 or later, you can use the subfield syntax to set the title
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* and attributes:
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*
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* @code
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* $this->addFieldMapping('field_my_link', 'source_url');
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* $this->addFieldMapping('field_my_link:title', 'source_title');
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* $this->addFieldMapping('field_my_link:attributes', 'source_attributes');
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* @endcode
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*
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* With earlier versions of Migrate, you must pass an arguments array:
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*
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* @code
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* $link_args = array(
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* 'title' => array('source_field' => 'source_title'),
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* 'attributes' => array('source_field' => 'source_attributes'),
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* );
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* $this->addFieldMapping('field_my_link', 'source_url')
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* ->arguments($link_args);
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* @endcode
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*/
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/**
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* Implements hook_migrate_api().
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*/
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function link_migrate_api() {
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return array(
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'api' => 2,
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'field handlers' => array('MigrateLinkFieldHandler'),
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);
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}
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class MigrateLinkFieldHandler extends MigrateFieldHandler {
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public function __construct() {
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$this->registerTypes(array('link_field'));
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}
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static function arguments($title = NULL, $attributes = NULL, $language = NULL) {
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$arguments = array();
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if (!is_null($title)) {
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$arguments['title'] = $title;
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}
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if (!is_null($attributes)) {
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$arguments['attributes'] = $attributes;
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}
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if (!is_null($language)) {
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$arguments['language'] = $language;
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}
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return $arguments;
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}
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/**
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* Implementation of MigrateFieldHandler::fields().
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*
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* @param $type
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* The field type.
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* @param $instance
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* Instance info for the field.
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* @param Migration $migration
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* The migration context for the parent field. We can look at the mappings
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* and determine which subfields are relevant.
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* @return array
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*/
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public function fields($type, $instance, $migration = NULL) {
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return array(
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'title' => t('Subfield: The link title attribute'),
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'attributes' => t('Subfield: The attributes for this link'),
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'language' => t('Subfield: The language for the field'),
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);
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}
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public function prepare($entity, array $field_info, array $instance, array $values) {
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if (isset($values['arguments'])) {
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$arguments = $values['arguments'];
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unset($values['arguments']);
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}
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else {
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$arguments = array();
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}
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$language = $this->getFieldLanguage($entity, $field_info, $arguments);
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$values = array_filter($values);
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foreach ($values as $delta => $value) {
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$item = array();
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if (isset($arguments['title'])) {
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if (!is_array($arguments['title'])) {
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$item['title'] = $arguments['title'];
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}
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elseif (isset($arguments['title'][$delta])) {
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$item['title'] = $arguments['title'][$delta];
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}
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}
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if (isset($arguments['attributes'])) {
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$item['attributes'] = $arguments['attributes'];
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}
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$item['url'] = $value;
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$return[$language][$delta] = $item;
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}
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return isset($return) ? $return : NULL;
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}
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}
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