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<?php
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/**
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* @file
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* Support for migration into Date fields.
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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 date_migrate_api() {
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$api = array(
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'api' => 2,
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'field handlers' => array('DateMigrateFieldHandler'),
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);
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return $api;
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}
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class DateMigrateFieldHandler extends MigrateFieldHandler {
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/**
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* Declares the types of fields used.
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*/
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public function __construct() {
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$this->registerTypes(array('date', 'datestamp', 'datetime'));
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}
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/**
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* Arguments for a date field migration.
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*
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* @param string $timezone
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* Timezone (such as UTC, America/New_York, etc.) to apply.
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* @param string $timezone_db
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* Timezone_db value for the field.
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* @param string $rrule
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* Rule string for a repeating date field.
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* @param string $language
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* Language of the text (defaults to destination language)
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*
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* @return array
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* An array of the defined variables in this scope.
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*/
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public static function arguments($timezone = 'UTC', $timezone_db = 'UTC', $rrule = NULL, $language = NULL) {
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return get_defined_vars();
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}
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/**
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* Converts incoming data into the proper field arrays for Date fields.
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*
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* @param object $entity
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* The destination entity which will hold the field arrays.
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* @param array $field_info
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* Metadata for the date field being populated.
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* @param array $instance
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* Metadata for this instance of the date field being populated.
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* @param array $values
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* Array of date values to be fielded.
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*
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* @return array|null
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* An array of date fields.
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*/
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public function prepare($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, $arguments);
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foreach ($values as $delta => $from) {
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if (!empty($arguments['timezone'])) {
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if (is_array($arguments['timezone'])) {
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$timezone = $arguments['timezone'][$delta];
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}
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else {
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$timezone = $arguments['timezone'];
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}
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}
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else {
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$timezone = 'UTC';
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}
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if (!empty($arguments['rrule'])) {
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if (is_array($arguments['rrule'])) {
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$rrule = $arguments['rrule'][$delta];
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}
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else {
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$rrule = $arguments['rrule'];
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}
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}
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else {
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$rrule = NULL;
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}
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if (!empty($arguments['to'])) {
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if (is_array($arguments['to'])) {
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$to = $arguments['to'][$delta];
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}
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else {
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$to = $arguments['to'];
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}
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}
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else {
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$to = NULL;
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}
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// Legacy support for JSON containing a set of properties - deprecated
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// now that we have subfields.
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if (!empty($from) && $from{0} == '{') {
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$properties = drupal_json_decode($from);
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$from = $properties['from'];
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// Properties passed in with the date override any set via arguments.
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if (!empty($properties['to'])) {
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$to = $properties['to'];
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}
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if (!empty($properties['timezone'])) {
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$timezone = $properties['timezone'];
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}
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if (!empty($properties['rrule'])) {
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$rrule = $properties['rrule'];
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}
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}
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// Missing data? Create an empty value and return;
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// Don't try to turn the empty value into a bogus
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// timestamp for 'now'.
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if (empty($from)) {
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$return[$language][$delta]['value'] = NULL;
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$return[$language][$delta]['timezone'] = NULL;
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if (!empty($field_info['settings']['todate'])) {
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$return[$language][$delta]['value2'] = NULL;
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}
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return $return;
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}
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// If there is no 'to' date, just use the 'from' date.
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if (!empty($field_info['settings']['todate']) && empty($to)) {
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$to = $from;
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}
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// If we have a value, work from a timestamp.
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$from = MigrationBase::timestamp($from);
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if ($to) {
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$to = MigrationBase::timestamp($to);
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}
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// What does the destination field expect?
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switch ($field_info['type']) {
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case 'datestamp':
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// Already done.
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break;
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case 'datetime':
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// YYYY-MM-DD HH:MM:SS.
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$from = format_date($from, 'custom', 'Y-m-d H:i:s', $timezone);
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if ($to) {
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$to = format_date($to, 'custom', 'Y-m-d H:i:s', $timezone);
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}
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break;
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case 'date':
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// ISO date: YYYY-MM-DDTHH:MM:SS.
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$from = format_date($from, 'custom', 'Y-m-d\TH:i:s', $timezone);
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if ($to) {
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$to = format_date($to, 'custom', 'Y-m-d\TH:i:s', $timezone);
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}
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break;
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default:
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break;
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}
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// Handle repeats, coming in as RRULEs. Many field instances may be
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// created.
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if (function_exists('date_repeat_build_dates') && !empty($field_info['settings']['repeat']) && $rrule) {
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include_once DRUPAL_ROOT . '/' . drupal_get_path('module', 'date_api') . '/date_api_ical.inc';
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$item = array(
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'value' => $from,
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'value2' => $to,
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'timezone' => $timezone,
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);
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// Can be de-uglified when http://drupal.org/node/1159404 is committed.
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$return[$language] = date_repeat_build_dates(NULL, date_ical_parse_rrule($field_info, $rrule), $field_info, $item);
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}
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else {
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$return[$language][$delta]['value'] = $from;
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$return[$language][$delta]['timezone'] = $timezone;
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if (!empty($to)) {
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$return[$language][$delta]['value2'] = $to;
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}
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}
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}
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if (!isset($return)) {
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$return = NULL;
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}
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return $return;
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}
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/**
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* {@inheritdoc}
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*/
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public function fields($migration = NULL) {
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return array(
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'timezone' => t('Timezone'),
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'rrule' => t('Recurring event rule'),
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'to' => t('End date date'),
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);
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}
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}
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