586 lines
22 KiB
PHP
586 lines
22 KiB
PHP
<?php
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/**
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* @file
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* Date forms and form themes and validation.
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*
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* All code used in form editing and processing is in this file,
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* included only during form editing.
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*/
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/**
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* Private implementation of hook_field validate operation.
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*/
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function _date_field_validate($op, &$node, $field, &$items, $teaser, $page) {
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$field_name = $field['field_name'];
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// Don't try to validate if there were any errors before this point
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// since the element won't have been munged back into a date.
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if (!form_get_errors()) {
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foreach ($items as $delta => $item) {
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$process = date_process_values($field);
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foreach ($process as $processed) {
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$error_field = $field['field_name'] .']['. $delta .']['. $processed;
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$error_field .= $field['widget']['type'] == 'date_select' ? '][year' : '';
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if ($processed == 'value' && $field['todate']
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&& !date_is_valid($item['value'], $field['type'], $field['granularity'])
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&& (date_is_valid($item['value2'], $field['type'], $field['granularity']))) {
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form_set_error($error_field, t("A 'From date' date is required for field %field %delta.", array('%delta' => $field['multiple'] ? intval($delta + 1) : '', '%field' => t($field['widget']['label']))));
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}
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if ($processed == 'value2'
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&& $field['todate'] == 'required' && ($field['required']
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&& date_is_valid($item['value'], $field['type'], $field['granularity'])
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&& !date_is_valid($item['value2'], $field['type'], $field['granularity']))) {
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form_set_error($error_field, t("A 'To date' is required for field %field %delta.", array('%delta' => $field['multiple'] ? intval($delta + 1) : '', '%field' => t($field['widget']['label']))));
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}
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}
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}
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}
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}
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/**
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* Private implementation of hook_field update and insert operations.
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*/
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function _date_field_update($op, &$node, $field, &$items, $teaser, $page) {
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$field_name = $field['field_name'];
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if (empty($items)) {
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//$node->$field_name = array(); // Not sure about this, CCK should handle it.
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return;
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}
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$values = $items;
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foreach ($values as $delta => $item) {
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// Special case for ISO dates which may have been given artificial values for
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// some date parts to make them into valid dates.
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if (!empty($item['value']) && $field['type'] == DATE_ISO) {
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$items[$delta]['value'] = date_limit_value($items[$delta]['value'], date_granularity($field), $field['type']);
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if ($field['todate']) {
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$items[$delta]['value2'] = date_limit_value($items[$delta]['value2'], date_granularity($field), $field['type']);
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}
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}
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}
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$node->$field['field_name'] = $items;
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}
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/**
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* Private implementation of hook_widget().
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*
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* The widget builds out a complex date element in the following way:
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*
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* - A field is pulled out of the database which is comprised of one or
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* more collections of from/to dates.
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*
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* - The dates in this field are all converted from the UTC values stored
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* in the database back to the local time before passing their values
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* to FAPI.
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*
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* - If values are empty, the field settings rules are used to determine
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* if the default_values should be empty, now, the same, or use strtotime.
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*
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* - Each from/to combination is created using the date_combo element type
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* defined by the date module. If the timezone is date-specific, a
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* timezone selector is added to the first combo element.
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*
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* - If repeating dates are defined, a form to create a repeat rule is
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* added to the field element.
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*
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* - The date combo element creates two individual date elements, one each
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* for the from and to field, using the appropriate individual Date API
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* date elements, like selects, textfields, or popups.
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*
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* - In the individual element validation, the data supplied by the user is
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* used to update the individual date values.
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*
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* - In the combo date validation, the timezone is updated, if necessary,
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* then the user input date values are used with that timezone to create
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* date objects, which are used update combo date timezone and offset values.
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*
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* - In the field's submission processing, the new date values, which are in
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* the local timezone, are converted back to their UTC values and stored.
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*
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*/
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function _date_widget(&$form, &$form_state, &$field, $items, $delta = 0) {
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// Be sure users that haven't run the update yet don't get
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// a badly broken value.
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if (!empty($field['repeat']) && !strstr($field['widget']['type'], '_repeat')) {
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$field['multiple'] = 0;
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return;
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}
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require_once('./'. drupal_get_path('module', 'date_api') .'/date_api_elements.inc');
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$timezone = date_get_timezone($field['tz_handling'], isset($items[0]['timezone']) ? $items[0]['timezone'] : date_default_timezone_name());
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// TODO see if there's a way to keep the timezone element from ever being
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// nested as array('timezone' => 'timezone' => value)). After struggling
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// with this a while, I can find no way to get it displayed in the form
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// correctly and get it to use the timezone element without ending up
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// with nesting.
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if (is_array($timezone)) {
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$timezone = $timezone['timezone'];
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}
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// Convert UTC dates to their local values in DATETIME format,
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// and adjust the default values as specified in the field settings.
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// It would seem to make sense to do this conversion when the data
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// is loaded instead of when the form is created, but the loaded
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// field data is cached and we can't cache dates that have been converted
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// to the timezone of an individual user, so we cache the UTC values
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// instead and do our conversion to local dates in the form and
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// in the formatters.
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$process = date_process_values($field);
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foreach ($process as $processed) {
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if (!isset($items[$delta][$processed])) {
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$items[$delta][$processed] = '';
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}
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$date = date_local_date($form, $form_state, $delta, $items[$delta], $timezone, $field, $processed);
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$items[$delta][$processed] = is_object($date) ? date_format($date, DATE_FORMAT_DATETIME) : '';
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}
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$element = array(
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'#type' => 'date_combo',
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'#weight' => $delta,
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'#default_value' => isset($items[$delta]) ? $items[$delta] : '',
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'#date_timezone' => $timezone,
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'#element_validate' => array('date_combo_validate', 'date_widget_validate'),
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);
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if ($field['tz_handling'] == 'date') {
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$element['timezone'] = array(
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'#type' => 'date_timezone',
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'#delta' => $delta,
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'#default_value' => $timezone,
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'#weight' => $field['widget']['weight'] + .2,
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);
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}
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// Add a date repeat form element, if needed.
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if (module_exists('date_repeat') && $field['repeat'] == 1) {
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require_once('./'. drupal_get_path('module', 'date') .'/date_repeat.inc');
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_date_repeat_widget($element, $field, $items, $delta);
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$element['rrule']['#weight'] = $field['widget']['weight'] + .4;
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}
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return $element;
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}
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/**
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* Create local date object.
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*
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* Create a date object set to local time from the field and
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* widget settings and item values, using field settings to
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* determine what to do with empty values.
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*/
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function date_local_date($form, $form_state, $delta, $item, $timezone, $field, $part = 'value') {
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if (!empty($form['nid']['#value'])) {
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$default_value = '';
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$default_value_code = '';
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}
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elseif ($part == 'value') {
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$default_value = $field['widget']['default_value'];
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$default_value_code = $field['widget']['default_value_code'];
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}
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else {
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$default_value = $field['widget']['default_value2'];
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$default_value_code = $field['widget']['default_value_code2'];
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}
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if (empty($item) || empty($item[$part])) {
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if (empty($default_value) || $default_value == 'blank' || $delta > 0) {
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return NULL;
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}
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elseif ($part == 'value2' && $default_value == 'same') {
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if ($field['widget']['default_value'] == 'blank' || empty($item['value'])) {
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return NULL;
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}
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else {
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$date = date_make_date($item['value'], $timezone, DATE_DATETIME, $field['granularity']);
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}
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}
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// Special case for 'now' when using dates with no timezone,
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// make sure 'now' isn't adjusted to UTC value of 'now'.
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elseif ($field['tz_handling'] == 'none') {
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$date = date_now();
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}
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else {
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$date = date_now($timezone);
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}
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}
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else {
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$value = $item[$part];
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// Special case for ISO dates to create a valid date object for formatting.
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if ($field['type'] == DATE_ISO) {
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$value = date_fuzzy_datetime($value);
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}
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else {
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$db_timezone = date_get_timezone_db($field['tz_handling']);
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$value = date_convert($value, $field['type'], DATE_DATETIME, $db_timezone);
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}
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$date = date_make_date($value, date_get_timezone_db($field['tz_handling']), DATE_DATETIME, $field['granularity']);
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if (empty($date)) {
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return NULL;
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}
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date_timezone_set($date, timezone_open($timezone));
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}
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if (is_object($date) && empty($item[$part]) && $default_value == 'strtotime' && !empty($default_value_code)) {
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date_modify($date, $default_value_code);
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}
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return $date;
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}
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/**
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* Implementation of hook_elements().
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*
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* date_combo will create a 'from' and optional 'to' date, along with
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* an optional 'timezone' column for date-specific timezones. Each
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* 'from' and 'to' date will be constructed from date_select or date_text.
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*/
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function _date_elements() {
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$type = array();
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$type['date_combo'] = array(
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'#input' => TRUE,
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'#delta' => 0,
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'#columns' => array('value', 'value2', 'timezone', 'offset', 'offset2'),
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'#process' => array('date_combo_process'),
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'#element_validate' => array('date_combo_validate'),
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);
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return $type;
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}
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/**
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* Process an individual date element.
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*/
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function date_combo_process($element, $edit, &$form_state, $form) {
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if (isset($element['#access']) && empty($element['#access'])) {
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return $element;
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}
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$field_name = $element['#field_name'];
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$field = $form['#field_info'][$field_name];
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$delta = $element['#delta'];
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$columns = $element['#columns'];
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if (isset($columns['rrule'])) {
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unset($columns['rrule']);
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}
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$from_field = 'value';
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$to_field = 'value2';
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$tz_field = 'timezone';
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$offset_field = 'offset';
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$offset_field2 = 'offset2';
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if ($field['todate'] != 'required' && !empty($element['#default_value'][$to_field]) && $element['#default_value'][$to_field] == $element['#default_value'][$from_field]) {
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unset($element['#default_value'][$to_field]);
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}
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$element[$from_field] = array(
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'#field' => $field,
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'#title' => (!$field['multiple'] || $field['repeat']) ? t($field['widget']['label']) : '',
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'#weight' => $field['widget']['weight'],
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'#required' => ($field['required'] && $delta == 0) ? 1 : 0,
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'#default_value' => isset($element['#value'][$from_field]) ? $element['#value'][$from_field] : '',
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'#delta' => $delta,
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'#date_timezone' => $element['#date_timezone'],
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'#date_format' => date_limit_format(date_input_format($element, $field), $field['granularity']),
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'#date_text_parts' => (array) $field['widget']['text_parts'],
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'#date_increment' => $field['widget']['increment'],
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'#date_year_range' => $field['widget']['year_range'],
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'#date_label_position' => $field['widget']['label_position'],
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);
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$description = !empty($field['widget']['description']) ? t($field['widget']['description']) : '';
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// Give this element the right type, using a Date API
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// or a Date Popup element type.
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switch ($field['widget']['type']) {
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case 'date_select':
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case 'date_select_repeat':
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// From/to selectors with lots of parts will look better if displayed
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// on two rows instead of in a single row.
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if (!empty($field['todate']) && count($field['granularity']) > 3) {
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$element[$from_field]['#attributes'] = array('class' => 'date-clear');
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}
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$element[$from_field]['#type'] = 'date_select';
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break;
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case 'date_popup':
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case 'date_popup_repeat':
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$element[$from_field]['#type'] = 'date_popup';
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break;
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default:
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$element[$from_field]['#type'] = 'date_text';
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break;
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}
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// If this field uses the 'To', add matching element
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// for the 'To' date, and adapt titles to make it clear which
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// is the 'From' and which is the 'To'.
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if (!empty($field['todate'])) {
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$element['#date_float'] = TRUE;
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$element[$from_field]['#title'] = t('From date');
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$element[$to_field] = $element[$from_field];
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$element[$to_field]['#title'] = t('To date');
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$element[$to_field]['#default_value'] = isset($element['#value'][$to_field]) ? $element['#value'][$to_field] : '';
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$element[$to_field]['#required'] = FALSE;
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$element[$to_field]['#weight'] += .1;
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if (($field['widget']['type'] == 'date_select') && empty($description)) {
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$description = t("Empty 'To date' values will use the 'From date' values.");
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}
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else {
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if (trim($description) == "") {
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$description = NULL;
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}
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}
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$element['#fieldset_description'] = $description;
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}
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else {
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$element[$from_field]['#description'] = $description;
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}
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// Create label for error messages that make sense in multiple values
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// and when the title field is left blank.
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if (!empty($field['multiple']) && empty($field['repeat'])) {
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$element[$from_field]['#date_title'] = t('@field_name From date value #@delta', array('@field_name' => $field['widget']['label'], '@delta' => $delta + 1));
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if (!empty($field['todate'])) {
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$element[$to_field]['#date_title'] = t('@field_name To date value #@delta', array('@field_name' => $field['widget']['label'], '@delta' => $delta + 1));
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}
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}
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elseif (!empty($field['todate'])) {
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$element[$from_field]['#date_title'] = t('@field_name From date', array('@field_name' => $field['widget']['label']));
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$element[$to_field]['#date_title'] = t('@field_name To date', array('@field_name' => $field['widget']['label']));
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}
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else {
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$element[$from_field]['#date_title'] = $field['widget']['label'];
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}
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// Make sure field info will be available to the validator which
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// does not get the values in $form.
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$form_state['#field_info'][$field['field_name']] = $field;
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return $element;
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}
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function date_element_empty($element, &$form_state) {
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$item = array();
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$item['value'] = NULL;
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$item['value2'] = NULL;
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$item['timezone'] = NULL;
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$item['offset'] = NULL;
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$item['offset2'] = NULL;
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$item['rrule'] = NULL;
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form_set_value($element, $item, $form_state);
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return $item;
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}
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/**
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* Validate and update a combo element.
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* Don't try this if there were errors before reaching this point.
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*/
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function date_combo_validate($element, &$form_state) {
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$form_values = $form_state['values'];
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$field_name = $element['#field_name'];
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$delta = $element['#delta'];
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// If the whole field is empty and that's OK, stop now.
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if (empty($element['#post'][$field_name]) && !$element['#required']) {
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return;
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}
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// Repeating dates have a different form structure, so get the
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// right item values.
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$item = isset($form_values[$field_name]['rrule']) ? $form_values[$field_name] : $form_values[$field_name][$delta];
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$posted = isset($form_values[$field_name]['rrule']) ? $element['#post'][$field_name] : $element['#post'][$field_name][$delta];
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$field = $form_state['#field_info'][$element['#field_name']];
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$from_field = 'value';
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$to_field = 'value2';
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$tz_field = 'timezone';
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$offset_field = 'offset';
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$offset_field2 = 'offset2';
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// Unfortunately, due to the fact that much of the processing is already
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// done by the time we get here, it is not possible highlight the field
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// with an error, we just try to explain which element is creating the
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// problem in the error message.
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$parent = $element['#parents'];
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$error_field = array_pop($parent);
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$errors = array();
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// Check for empty 'From date', which could either be an empty
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// value or an array of empty values, depending on the widget.
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$empty = TRUE;
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if (!empty($item[$from_field])) {
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if (!is_array($item[$from_field])) {
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$empty = FALSE;
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}
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else {
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foreach ($item[$from_field] as $key => $value) {
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if (!empty($value)) {
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$empty = FALSE;
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break;
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}
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}
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}
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}
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if ($empty) {
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$item = date_element_empty($element, $form_state);
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if (!$element['#required']) {
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return;
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}
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}
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// Don't look for further errors if errors are already flagged
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// because otherwise we'll show errors on the nested elements
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// more than once.
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elseif (!form_get_errors()) {
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// Check todate input for blank values and substitute in fromdate
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// values where needed, then re-compute the todate with those values.
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if ($field['todate']) {
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$merged_date = array();
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$to_date_empty = TRUE;
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foreach ($posted[$to_field] as $part => $value) {
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$to_date_empty = $to_date_empty && empty($value) && !is_numeric($value);
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$merged_date[$part] = empty($value) && !is_numeric($value) ? $posted[$from_field][$part] : $value;
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if ($part == 'ampm' && $merged_date['ampm'] == 'pm' && $merged_date['hour'] < 12) {
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$merged_date['hour'] += 12;
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}
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elseif ($part == 'ampm' && $merged_date['ampm'] == 'am' && $merged_date['hour'] == 12) {
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$merged_date['hour'] -= 12;
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}
|
|
}
|
|
|
|
// If all date values were empty and a date is required, throw
|
|
// an error on the first element. We don't want to create
|
|
// duplicate messages on every date part, so the error will
|
|
// only go on the first.
|
|
if ($to_date_empty && $field['todate'] == 'required') {
|
|
$errors[] = t('Some value must be entered in the To date.');
|
|
}
|
|
|
|
$element[$to_field]['#value'] = $merged_date;
|
|
|
|
// Call the right function to turn this altered user input into
|
|
// a new value for the todate.
|
|
$item[$to_field] = $merged_date;
|
|
}
|
|
else {
|
|
$item[$to_field] = $item[$from_field];
|
|
}
|
|
|
|
$from_date = date_input_value($field, $element[$from_field]);
|
|
if (!empty($field['todate'])) {
|
|
$to_date = date_input_value($field, $element[$to_field]);
|
|
}
|
|
else {
|
|
$to_date = $from_date;
|
|
}
|
|
|
|
// Neither the from date nor the to date should be empty at this point
|
|
// unless they held values that couldn't be evaluated.
|
|
if (!$field['required'] && (empty($from_date) || empty($to_date))) {
|
|
$item = date_element_empty($element, $form_state);
|
|
$errors[] = t('The dates are invalid.');
|
|
}
|
|
elseif (!empty($field['todate']) && $from_date > $to_date) {
|
|
form_set_value($element[$to_field], $to_date, $form_state);
|
|
$errors[] = t('The To date must be greater than the From date.');
|
|
}
|
|
else {
|
|
// Convert input dates back to their UTC values and re-format to ISO
|
|
// or UNIX instead of the DATETIME format used in element processing.
|
|
$timezone = !empty($item[$tz_field]) ? $item[$tz_field] : $element['#date_timezone'];
|
|
$timezone_db = date_get_timezone_db($field['tz_handling']);
|
|
|
|
$item[$tz_field] = $timezone;
|
|
|
|
$from_date = date_make_date($from_date, $timezone);
|
|
$item[$offset_field] = date_offset_get($from_date);
|
|
|
|
$to_date = date_make_date($to_date, $timezone);
|
|
$test_from = date_format($from_date, 'r');
|
|
$test_to = date_format($to_date, 'r');
|
|
$item[$offset_field2] = date_offset_get($to_date);
|
|
date_timezone_set($from_date, timezone_open($timezone_db));
|
|
date_timezone_set($to_date, timezone_open($timezone_db));
|
|
$item[$from_field] = date_format($from_date, date_type_format($field['type']));
|
|
$item[$to_field] = date_format($to_date, date_type_format($field['type']));
|
|
if (isset($form_values[$field_name]['rrule'])) {
|
|
$item['rrule'] = $form_values[$field['field_name']]['rrule'];
|
|
}
|
|
|
|
// If the db timezone is not the same as the display timezone
|
|
// and we are using a date with time granularity,
|
|
// test a roundtrip back to the original timezone to catch
|
|
// invalid dates, like 2AM on the day that spring daylight savings
|
|
// time begins in the US.
|
|
$granularity = date_format_order($element[$from_field]['#date_format']);
|
|
if ($timezone != $timezone_db && date_has_time($granularity)) {
|
|
date_timezone_set($from_date, timezone_open($timezone));
|
|
date_timezone_set($to_date, timezone_open($timezone));
|
|
|
|
if ($test_from != date_format($from_date, 'r')) {
|
|
$errors[] = t('The From date is invalid.');
|
|
}
|
|
if ($test_to != date_format($to_date, 'r')) {
|
|
$errors[] = t('The To date is invalid.');
|
|
}
|
|
}
|
|
|
|
if (empty($errors)) {
|
|
form_set_value($element, $item, $form_state);
|
|
}
|
|
}
|
|
}
|
|
if (!empty($errors)) {
|
|
if ($field['multiple']) {
|
|
form_set_error($error_field, t('There are errors in @field_name value #@delta:', array('@field_name' => $field['widget']['label'], '@delta' => $delta + 1)) . theme('item_list', $errors));
|
|
}
|
|
else {
|
|
form_set_error($error_field, t('There are errors in @field_name:', array('@field_name' => $field['widget']['label'])) . theme('item_list', $errors));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handle widget processing.
|
|
*/
|
|
function date_widget_validate($element, &$form_state) {
|
|
$field = $form_state['#field_info'][$element['#field_name']];
|
|
if (module_exists('date_repeat') && $field['repeat'] == 1) {
|
|
module_load_include('inc', 'date', 'date_repeat');
|
|
return _date_repeat_widget_validate($element, $form_state);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determine the input format for this element.
|
|
*/
|
|
function date_input_format($element, $field) {
|
|
if (!empty($field['widget']['input_format_custom'])) {
|
|
return $field['widget']['input_format_custom'];
|
|
}
|
|
elseif (!empty($field['widget']['input_format']) && $field['widget']['input_format'] != 'site-wide') {
|
|
return $field['widget']['input_format'];
|
|
}
|
|
return variable_get('date_format_short', 'm/d/Y - H:i');
|
|
}
|
|
|
|
/**
|
|
* Theme from/to date combination on form.
|
|
*/
|
|
function theme_date_combo($element) {
|
|
$field = content_fields($element['#field_name'], $element['#type_name']);
|
|
if (!$field['todate']) {
|
|
return $element['#children'];
|
|
}
|
|
|
|
// Group from/to items together in fieldset.
|
|
$fieldset = array(
|
|
'#title' => check_plain($field['widget']['label']) .' '. ($element['#delta'] > 0 ? intval($element['#delta'] + 1) : ''),
|
|
'#value' => $element['#children'],
|
|
'#collapsible' => FALSE,
|
|
'#collapsed' => FALSE,
|
|
'#description' => $element['#fieldset_description'],
|
|
'#attributes' => array(),
|
|
);
|
|
return theme('fieldset', $fieldset);
|
|
}
|