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<?php
/**
* @file
* Field hooks to implement a date field.
*/
/**
* Implements hook_field_formatter_info().
*/
function date_field_formatter_info() {
$formatters = array(
'date_default' => array(
'label' => t('Default'),
'field types' => array('date', 'datestamp', 'datetime'),
'settings' => array(
'format_type' => 'long',
'show_repeat_rule' => 'show',
'multiple_number' => '',
'multiple_from' => '',
'multiple_to' => '',
'fromto' => 'both',
),
),
'format_interval' => array(
'label' => t('As Time Ago'),
'field types' => array('date', 'datestamp', 'datetime'),
'settings' => array(
'interval' => 2,
),
),
);
$formats = _system_date_format_types_build();
foreach ($formats as $format => $value) {
$formatters['date_' . $format] = $formatters['date_default'];
$formatters['date_' . $format]['format_type'] = $format;
$formatters['date_' . $format]['label'] = $value['title'];
}
return $formatters;
}
/**
* Implements hook_field_formatter_settings_form().
*/
function date_field_formatter_settings_form($field, $instance, $view_mode, $form, &$form_state) {
$display = $instance['display'][$view_mode];
$formatter = $display['type'];
module_load_include('inc', 'date', 'date_admin');
switch ($formatter) {
case 'format_interval':
return date_interval_formatter_settings_form($field, $instance, $view_mode, $form, $form_state);
default:
return date_default_formatter_settings_form($field, $instance, $view_mode, $form, $form_state);
}
}
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/**
* Implements hook_field_formatter_settings_summary().
*/
function date_field_formatter_settings_summary($field, $instance, $view_mode) {
$display = $instance['display'][$view_mode];
$formatter = $display['type'];
module_load_include('inc', 'date', 'date_admin');
switch ($formatter) {
case 'format_interval':
return date_interval_formatter_settings_summary($field, $instance, $view_mode);
default:
return date_default_formatter_settings_summary($field, $instance, $view_mode);
}
}
/**
* Implements hook_field_formatter_view().
*
* Useful values:
*
* $entity->date_id
* If set, this will show only an individual date on a field with
* multiple dates. The value should be a string that contains
* the following values, separated with colons:
* - module name of the module adding the item
* - node nid
* - field name
* - delta value of the field to be displayed
* - other information the module's custom theme might need
*
* Used by the calendar module and available for other uses.
* example: 'date:217:field_date:3:test'
*
* $entity->date_repeat_show
* If true, tells the theme to show all the computed values
* of a repeating date. If not true or not set, only the
* start date and the repeat rule will be displayed.
*
*/
function date_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
$element = array();
$settings = $display['settings'];
$formatter = $display['type'];
$vars = array(
'entity' => $entity,
'entity_type' => $entity_type,
'field' => $field,
'instance' => $instance,
'langcode' => $langcode,
'items' => $items,
'display' => $display,
'dates' => array(),
);
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// See if we are only supposed to display a selected
// item from multiple value date fields.
$selected_deltas = array();
if (!empty($entity->date_id)) {
foreach ((array) $entity->date_id as $key => $id) {
list($module, $nid, $field_name, $selected_delta, $other) = explode(':', $id);
if ($field_name == $field['field_name']) {
$selected_deltas[] = $selected_delta;
}
}
}
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switch ($display['type']) {
case 'format_interval':
foreach ($items as $delta => $item) {
if (!empty($entity->date_id) && !in_array($delta, $selected_deltas)) {
continue;
}
else {
$vars['delta'] = $delta;
$vars['item'] = $item;
$vars['dates'] = date_formatter_process($formatter, $entity_type, $entity, $field, $instance, $langcode, $item, $display);
$element[$delta] = array('#markup' => theme('date_display_interval', $vars));
}
}
break;
default:
foreach ($items as $delta => $item) {
if (!empty($entity->date_id) && !in_array($delta, $selected_deltas)) {
continue;
}
else {
$vars['delta'] = $delta;
$vars['item'] = $item;
$vars['dates'] = date_formatter_process($formatter, $entity_type, $entity, $field, $instance, $langcode, $item, $display);
$element[$delta] = array('#markup' => theme('date_display_combination', $vars));
}
}
break;
}
return $element;
}
/**
* Implements hook_field_is_empty().
*/
function date_field_is_empty($item, $field) {
// Sometimes a $item is a date object.
// Coming from repeating dates. Why??
if (!is_array($item)) {
return FALSE;
}
if (empty($item['value'])) {
return TRUE;
}
elseif ($field['settings']['todate'] == 'required' && empty($item['value2'])) {
return TRUE;
}
return FALSE;
}
/**
* Implements hook_field_info().
*/
function date_field_info() {
$settings = array(
'settings' => array(
'todate' => '',
'repeat' => 0,
'granularity' => drupal_map_assoc(array('year', 'month', 'day', 'hour', 'minute')),
'tz_handling' => 'site',
'timezone_db' => 'UTC',
),
'instance_settings' => array(
'default_value' => 'now',
'default_value_code' => '',
'default_value2' => 'blank',
'default_value_code2' => '',
'default_format' => 'medium',
),
// Integrate with the Entity Metadata module.
'property_type' => 'date',
'property_callbacks' => array('date_entity_metadata_property_info_alter'),
);
return array(
'date' => array(
'label' => 'Date',
'description' => t('Store a date in the database as an ISO date, recommended for historical or partial dates.'),
'default_widget' => 'date_select',
'default_formatter' => 'date_default',
) + $settings,
'datestamp' => array(
'label' => 'Datestamp',
'description' => t('Store a date in the database as a timestamp, deprecated format to suppport legacy data.'),
'default_widget' => 'date_select',
'default_formatter' => 'date_default',
) + $settings,
'datetime' => array(
'label' => 'Datetime',
'description' => t('Store a date in the database as a datetime field, recommended for complete dates and times that may need timezone conversion.'),
'default_widget' => 'date_select',
'default_formatter' => 'date_default',
) + $settings,
);
}
/**
* Implements hook_field_widget_info().
*/
function date_field_widget_info() {
$settings = array(
'settings' => array(
'input_format' => date_default_format('date_select'),
'input_format_custom' => '',
'increment' => 1,
'text_parts' => array(),
'year_range' => '-3:+3',
'label_position' => 'above',
'repeat_collapsed' => 0,
),
'behaviors' => array(
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
'default value' => FIELD_BEHAVIOR_CUSTOM,
),
);
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// Repeating dates have custom handling
// for multiple values.
$repeat_settings = $settings;
$repeat_settings['behaviors']['multiple values'] = FIELD_BEHAVIOR_CUSTOM;
$info = array(
'date_select' => array(
'label' => t('Select List'),
'field types' => array('date', 'datestamp', 'datetime'),
) + $settings,
'date_select_repeat' => array(
'label' => t('Select List with Repeat options'),
'field types' => array('date', 'datestamp', 'datetime'),
) + $repeat_settings,
'date_text' => array(
'label' => t('Text Field with custom input format'),
'field types' => array('date', 'datestamp', 'datetime'),
) + $settings,
'date_text_repeat' => array(
'label' => t('Text Field with Repeat options'),
'field types' => array('date', 'datestamp', 'datetime'),
) + $repeat_settings,
);
if (module_exists('date_popup')) {
$info['date_popup'] = array(
'label' => t('Text Field with Date Pop-up calendar'),
'field types' => array('date', 'datestamp', 'datetime'),
) + $settings;
$info['date_popup_repeat'] = array(
'label' => t('Text Field with Date Pop-up and Repeat options'),
'field types' => array('date', 'datestamp', 'datetime'),
) + $repeat_settings;
}
if (!module_exists('date_repeat')) {
unset($info['date_select_repeat']);
unset($info['date_text_repeat']);
if (isset($info['date_popup_repeat'])) {
unset($info['date_popup_repeat']);
}
}
return $info;
}
/**
* Implements hook_field_load().
*/
function date_field_load($entity_type, $entities, $field, $instances, $langcode, &$items, $age) {
foreach ($entities as $id => $entity) {
foreach ($items[$id] as $delta => $item) {
// If the file does not exist, mark the entire item as empty.
$timezone = isset($item['timezone']) ? $item['timezone'] : '';
if (is_array($item)) {
$items[$id][$delta]['timezone'] = date_get_timezone($field['settings']['tz_handling'], $timezone);
$items[$id][$delta]['timezone_db'] = date_get_timezone_db($field['settings']['tz_handling']);
$items[$id][$delta]['date_type'] = $field['type'];
}
}
}
}
/**
* Implements hook_field_validate().
*/
function date_field_validate($entity_type, $entity, $field, $instance, $langcode, $items, &$errors) {
$field_name = $field['field_name'];
$flexible = 0;
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// Don't try to validate if there were any errors before this point
// since the element won't have been munged back into a date.
if (!form_get_errors()) {
foreach ($items as $delta => $item) {
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if (is_array($item) && !empty($item)) {
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$process = date_process_values($field, $instance);
$date1 = new DateObject($item['value'], $item['timezone'], date_type_format($field['type']));
if (empty($item['value2']) && $item['value2'] !== 0) {
$date2 = clone($date1);
}
else {
$date2 = new DateObject($item['value2'], $item['timezone'], date_type_format($field['type']));
}
$valid1 = $date1->validGranularity($field['settings']['granularity'], $flexible);
$valid2 = $date2->validGranularity($field['settings']['granularity'], $flexible);
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foreach ($process as $processed) {
if ($processed == 'value' && $field['settings']['todate'] && !$valid1 && $valid2) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'value',
'message' => t("A 'From date' date is required for field %field #%delta.", array('%delta' => $field['cardinality'] ? intval($delta + 1) : '', '%field' => t($instance['label']))),
);
}
if ($processed == 'value2' && $field['settings']['todate'] == 'required' && ($instance['required'] && $valid1 && !$valid2)) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'value2',
'message' => t("A 'To date' is required for field %field #%delta.", array('%delta' => $field['cardinality'] ? intval($delta + 1) : '', '%field' => t($instance['label']))),
);
}
}
}
}
}
}
/**
* Implements hook_field_presave().
*/
function date_field_presave($entity_type, $entity, $field, $instance, $langcode, &$items) {
date_field_update($entity_type, $entity, $field, $instance, $langcode, $items);
}
/**
* Implements hook_field_insert().
*/
function date_field_insert($entity_type, $entity, $field, $instance, $langcode, &$items) {
date_field_update($entity_type, $entity, $field, $instance, $langcode, $items);
}
/**
* Implements hook_field_update().
*/
function date_field_update($entity_type, $entity, $field, $instance, $langcode, &$items) {
$field_name = $field['field_name'];
if (empty($items)) {
return;
}
// Add some information needed to interpret token values.
$values = $items;
foreach ($values as $delta => $item) {
$timezone = isset($item['timezone']) ? $item['timezone'] : '';
if (is_array($item)) {
$items[$delta]['timezone'] = date_get_timezone($field['settings']['tz_handling'], $timezone);
$items[$delta]['timezone_db'] = date_get_timezone_db($field['settings']['tz_handling']);
$items[$delta]['date_type'] = $field['type'];
}
}
$entity->{$field['field_name']}[$langcode] = $items;
foreach ($values as $delta => $item) {
if (is_array($item)) {
// Special case for ISO dates which may have been given artificial values for
// some date parts to make them into valid dates.
// @TODO Decide how to replace the date_limit_value() function.
if (!empty($item['value']) && $field['type'] == DATE_ISO) {
//$items[$delta]['value'] = date_limit_value($items[$delta]['value'], date_granularity($field), $field['type']);
if ($field['settings']['todate']) {
//$items[$delta]['value2'] = date_limit_value($items[$delta]['value2'], date_granularity($field), $field['type']);
}
}
}
}
$entity->{$field['field_name']}[$langcode] = $items;
}
/**
* Wrapper functions for date administration, included only when
* processing field settings.
*/
function date_field_instance_settings_form($field, $instance) {
module_load_include('inc', 'date', 'date_admin');
return _date_field_instance_settings_form($field, $instance);
}
function date_field_widget_settings_form($field, $instance) {
module_load_include('inc', 'date', 'date_admin');
return _date_field_widget_settings_form($field, $instance);
}
function date_field_settings_form($field, $instance, $has_data) {
module_load_include('inc', 'date', 'date_admin');
return _date_field_settings_form($field, $instance, $has_data);
}
/**
* Implements hook_content_migrate_field_alter().
*
* Use this to tweak the conversion of field settings
* from the D6 style to the D7 style for specific
* situations not handled by basic conversion,
* as when field types or settings are changed.
*
* $field_value['widget_type'] is available to
* see what widget type was originally used.
*/
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function date_content_migrate_field_alter(&$field_value, $instance_value) {
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switch ($field_value['module']) {
case 'date':
// So far, no changes to field except those we have to make
// later in the instance, to move some values from the
// field to the widget.
break;
}
}
/**
* Implements hook_content_migrate_instance_alter().
*
* Use this to tweak the conversion of instance or widget settings
* from the D6 style to the D7 style for specific
* situations not handled by basic conversion, as when
* formatter or widget names or settings are changed.
*/
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function date_content_migrate_instance_alter(&$instance_value, $field_value) {
switch ($instance_value['widget']['module']) {
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case 'date':
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// Some settings have been moved from field to instance.
$default_format = $field_value['settings']['default_format'];
unset($field_value['settings']['default_format']);
$instance_value['settings']['repeat_collapsed'] = $field_value['settings']['repeat_collapsed'];
unset($field_value['settings']['repeat_collapsed']);
// Some settings have been moved from widget settings to instance settings.
$instance_value['settings']['default_value'] = $instance_value['default_value'];
unset($instance_value['default_value']);
$instance_value['settings']['default_value_code'] = $instance_value['widget']['settings']['default_value_code'];
unset($instance_value['widget']['settings']['default_value_code']);
$instance_value['settings']['default_value2'] = $instance_value['widget']['settings']['default_value2'];
unset($instance_value['widget']['settings']['default_value2']);
$instance_value['settings']['default_value_code2'] = $instance_value['widget']['settings']['default_value_code2'];
unset($instance_value['widget']['settings']['default_value_code2']);
break;
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// We need to retrieve formatter settings from the variables and store them in the instance.
// Some formatter names changed, and system date type names changed.
$new_type = array(
'format_interval' => 'format_interval',
'default' => 'date_default',
'small' => 'date_short',
'large' => 'date_long',
'medium' => 'date_medium',
);
$new_settings = array(
'date_default' => array(
'format_type' => $default_format,
'show_repeat_rule' => 'show',
'multiple_number' => '',
'multiple_from' => '',
'multiple_to' => '',
'fromto' => 'both',
),
'format_interval' => array(
'interval' => 2,
),
'date_short' => array(
'format_type' => 'short',
'show_repeat_rule' => 'show',
'multiple_number' => '',
'multiple_from' => '',
'multiple_to' => '',
'fromto' => 'both',
),
'date_long' => array(
'format_type' => 'long',
'show_repeat_rule' => 'show',
'multiple_number' => '',
'multiple_from' => '',
'multiple_to' => '',
'fromto' => 'both',
),
'date_medium' => array(
'format_type' => 'medium',
'show_repeat_rule' => 'show',
'multiple_number' => '',
'multiple_from' => '',
'multiple_to' => '',
'fromto' => 'both',
),
);
// Add the custom date format options to the list.
$formats = array_keys(system_get_date_formats());
foreach ($formats as $format) {
if ($format != 'short' && $format != 'long' && $format != 'medium') {
$new_type['date_' . $format] = $new_format;
$new_settings['date_' . $format] = $new_settings['date_default'];
$new_settings['date_' . $format]['format_type'] = $format;
}
}
foreach ($instance_value['display'] as $context => $settings) {
$instance_value['display'][$context]['type'] = $new_type[$settings['type']];
$old_settings = date_old_formatter_get_settings($instance['field_name'], $instance['bundle'], $context);
foreach ($new_settings as $key => $value) {
$instance_value['display'][$context]['settings'][$key] = !empty($old_settings[$key]) ? $old_settings[$key] : $value;
}
}
// We changed some of the field values, save them.
field_info_update($field_values);
break;
}
}
function date_old_formatter_get_settings($field_name, $type_name, $context) {
$options = array();
$value = 'date:'. $type_name .':'. $context .':'. $field_name;
$options['show_repeat_rule'] = variable_get($value .'_show_repeat_rule', 'show');
$options['multiple_number'] = variable_get($value .'_multiple_number', '');
$options['multiple_from'] = variable_get($value .'_multiple_from', '');
$options['multiple_to'] = variable_get($value .'_multiple_to', '');
$options['fromto'] = variable_get($value .'_fromto', 'both');
return $options;
}