Private event calendar

Take the code below, place in a file called private_event.module in a directory under modules called private_event.
Make sure under administer -> settings -> content you configure the 'private event' type so it shows in the calendar.
You will also need to grant the approriate permission for people to be able to create private events. There is also a permission that can be used to granted selected roles the ability to see all private events. Please let me know if this works for you (or if you have problems) as I plan to add this to Drupal in the next few days.

For those interested in how this works, it is a copy of basicevent plus the db_rewrite_sql hook which implements the logic to keep the event s private.

<?php
// $Id: 

/**
 * @file
 * An extremly simple module to implement the event API for private events.
 */

/**
 * Implementation of hook_help().
 */
function private_event_help($section) {
  switch ($section) {
    case 'admin/modules#description':
      return t('A story-like node that implements the event API automatically. Depends on the event module (4.6 or later).');
    case 'node/add#event':
      return t('An event is a story which can be given a start and end date, thus appearing in the events calendar but only for the user that created it.');
  }
}

/**
 * Implementation of hook_node_info().
 */
function private_event_node_info() {
  return array('private event' => array('name' => t('private event'), 'base' => 'private_event'));
}

/**
 * Implementation of hook_perm().
 */
function private_event_perm() {
  return array('create private events', 'edit own private events', 'see all private events');
}

/**
 * Implementation of hook_access().
 */
function private_event_access($op, $node) {
  global $user;
  switch($op) {
    case 'create':
      return user_access('create private events');
      break;
    case 'update':
    case 'delete':
      if (user_access('edit own private events') && ($user->uid == $node->uid)) {
        return TRUE;
      }
      break;
  }
}

/**
 * Implementation of hook_menu().
 */
function private_event_menu($may_cache) {
  $items = array();

  if ($may_cache) {
    $items[] = array('path' => 'node/add/private event', 'title' => t('private event'),
      'access' => user_access('create private events'));
  }

  return $items;
}

/**
 * Implementation of hook_form().
 */
function private_event_form(&$node) {
  // warn them if this isn't set to appear in the calendar
  if (variable_get('private event_nodeapi_event', 'never') == 'never') {
    $link = l(t('event content-type settings page'), 'admin/settings/content-types/private event');
    drupal_set_message(t('The event node is currently set to never appear in the calendar. You will not be able to set the start and end dates until an administrator changes the content-type settings. This is done using the %link.', array('%link' => $link)));
  }

  $form['title'] = array('#type' => 'textfield', '#title' => t('Title'), '#default_value' => $node->title, '#size' => 60, '#maxlength' => 128, '#required' => TRUE);
  $form['body'] = array('#type' => 'textarea', '#title' => t('Body'), '#default_value' => $node->body, '#required' => TRUE);

  $form = array_merge($form, filter_form($node->format));

  return $form;
}

function private_event_db_rewrite_sql($query, $primary_table, $primary_field, $args) {
	global $user;
	
	if ( $primary_field == 'nid' ) {
		
		// Super user (uid == 1) and people with 'see all private events' permission can view all reminders
		
		if ( $user->uid != 1 && !user_access('see all private events') ) {
			if ( strpos($query, '{event}') !== FALSE ) {
				$return['where'] = "(( n.type = 'private event' AND n.uid = $user->uid) OR ( n.type <> 'private event'))";
				return $return;
			}
		}
	}
}

Shouldn't this be a module feature?

I think an event view should be configurable so that every user "owns" a calendar view. The event view calendar only displays events linked to that view. The user set as the owner of a view can decide who else may see it, based on roles, OGs or at user level.

--
Jakob Persson
Drupal developer, web designer and usability consultant
http://www.jakob-persson.com

I've been searching for a way to display only the events for the current user. I played with converting this code, but I'm thinking that basicevent's apparent deprecation might have made this option obsolete. Does anyone know if this is correct?

Rick Nashleanas
www.monarchdigital.com