fullcalendar_api.module

<?php

/**
 * @file
 * Functions and hooks for FullCalendar API module.
 */

/**
 * Implements hook_menu().
 */
function fullcalendar_api_menu() {
  $items['fullcalendar-api/ajax/update/%/%'] = array(
    'title' => 'Update entity',
    'description' => 'Save the updated entity date.',
    'page callback' => 'fullcalendar_api_update',
    'page arguments' => array(3, 4),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
  );
  return $items;
}

/**
 * Saves the updated FullCalendar event's datetime.
 */
function fullcalendar_api_update($action, $id) {
  if (empty($_REQUEST['id'])) {
    return;
  }

  // Retrieve and sanitize POST data.
  $id = check_plain($_REQUEST['id']);
  $title = check_plain($_REQUEST['title']);
  $entity_type = check_plain($_REQUEST['entityType']);
  $bundle = check_plain($_REQUEST['bundle']);
  $all_day = $_REQUEST['allDay'] ? TRUE : FALSE;
  $date_field = check_plain($_REQUEST['dateField']);
  $start_time = intval($_REQUEST['startTime']);
  $end_time = $_REQUEST['endTime'] ? intval($_REQUEST['endTime']) : NULL;

  $entity = entity_load_single($entity_type, $id);

  // Directly assign the date value instead of using entity metadata wrappers 
  // to support custom field type.
  // @todo this could be a lot more flexible
  $date_value = $entity->{$date_field}[LANGUAGE_NONE][0];

  $format_string = DATE_FORMAT_DATETIME;
  switch ($date_value['date_type']) {
    case 'date':
      $format_string = DATE_FORMAT_ISO;
      break;
    case 'datestamp':
      $format_string = DATE_FORMAT_UNIX;
      break;
    case 'datetime':
    case 'ep_datetime':
      $format_string = DATE_FORMAT_DATETIME;
      break;
  }

  if ($date_value['date_type'] == 'ep_datetime') {
    $date_value['type'] = 'exact';
  }
  // Get date format and use php date() function.
  // @todo timezone?
  $date_value['value'] = date($format_string, $start_time);
  if (!empty($date_value['value2'])) {
    if (empty($end_time)) {
      $date_value['value2'] = $date_value['value'];
    }
    else {
      $date_value['value2'] = date($format_string, $end_time);
    }
  }

  $entity->{$date_field}[LANGUAGE_NONE][0] = $date_value;

  // entity_save() will throw an error if it did not successfully save, 
  // which will prevent 'success' from being returned.
  entity_save($entity_type, $entity);
  drupal_json_output('success');
}

/**
 * Implements hook_libraries_info().
 */
function fullcalendar_api_libraries_info() {
  $libraries['fullcalendar'] = array(
    'name' => 'Full Calendar',
    'vendor url' => 'http://fullcalendar.io/',
    'download url' => 'http://fullcalendar.io/download/',
    'version arguments' => array(
      'file' => 'fullcalendar.min.js',
      'pattern' => '/FullCalendar v(\d+\.+\d+)/',
      'lines' => 2,
    ),
    'files' => array(
      'js' => array(
        'fullcalendar.min.js' => array(
          'scope' => 'footer',
        ),
      ),
      'css' => array(
        'fullcalendar.min.css',
      ),
    ),
    'dependencies' => array(
      'moment',
    ),
  );
  return $libraries;
}

/**
 * Implements hook_theme().
 */
function fullcalendar_api_theme($existing, $type, $theme, $path) {
  return array(
    'fullcalendar_calendar' => array(
      'file' => 'theme.inc',
      'path' => "$path/theme",
      'variables' => array(
        'calendar_settings' => array(NULL),
      ),
    ),
    'fullcalendar_calendar_datasource' => array(
      'file' => 'theme.inc',
      'path' => "$path/theme",
      'variables' => array(
        'datasource_uri' => NULL,
        'calendar_id' => NULL,
        'calendar_settings' => array(NULL),
      ),
    ),
    'fullcalendar_calendar_entity' => array(
      'file' => 'theme.inc',
      'path' => "$path/theme",
      'variables' => array(
        'entities' => array(NULL),
        'date_field_map' => array(NULL),
        'calendar_id' => NULL,
        'calendar_settings' => array(NULL),
      ),
    ),
  );
}

/**
 * Helper function to load all scripts necessary to embed FullCalendar.
 */
function fullcalendar_api_load_calendar($calendar_id, $calendar_settings) {
  libraries_load('fullcalendar');
  drupal_add_js(drupal_get_path('module', 'fullcalendar_api') . '/js/fullcalendar.load.js', array('scope' => 'footer'));
  $js_settings = array(
    'instances' => array(
      $calendar_id => $calendar_settings,
    ),
  );
  drupal_add_js(array('fullCalendarApi' => $js_settings), 'setting');
}