<?php
/** 
 * @file webform_paths.module
 * Allows assigning multiple paths and destinations to a single webform.
 *  
 * @author Omar Abdel-Wahab <owahab@owhab.com>
 * @copyright: KnowledgeTree Inc
 * @license: GPL 2 or any later version.
 * @date 2009-01-01
 */


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

  $items['node/%webform_menu/path/%webform_paths'] = array(
    'title' => 'Paths',
    'page callback' => 'webform_paths_view_webform',
    'page arguments' => array(1, 3),
    'access callback' => 'node_access',
    'access arguments' => array('view', 1),
    'type' => MENU_CALLBACK,
  );
  $items['node/%webform_menu/edit/webform_paths'] = array(
    'title' => 'Paths',
    'page callback' => 'webform_paths_edit_node_settings',
    'page arguments' => array(1, 4),
    'access callback' => 'node_access',
    'access arguments' => array('update', 1),
    'weight' => 9,
    'type' => MENU_LOCAL_TASK,
    'file' => 'webform_paths.admin.inc',
  );
  $items['webform_paths/delete'] = array(
    'title' => 'Delete path',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('webform_paths_delete_path_confirm'),
    'access arguments' => array('administer webform paths'),
    'type' => MENU_CALLBACK,
    'file' => 'webform_paths.admin.inc',
  );

  return $items;
}

/**
 * Implementation of hook_load().
 */
function webform_paths_load($pathid) {
  return db_fetch_object(db_query('SELECT * FROM {webform_paths} WHERE pathid = %d', $pathid));
}

/**
 * Implementation of hook_perm().
 */
function webform_paths_perm() {
  return array('administer webform paths');
}

/**
 * Returns a node view page for a given webform path.
 */
function webform_paths_view_webform($node, $path) {
  if (!empty($path->title)) {
    drupal_set_title($path->title);
    drupal_set_message($path->message);
  }
  return node_view($node, FALSE, TRUE);
}

/**
 * Retrieves a list of paths created for a given webform node.
 */
function webform_paths_get_node_paths($node) {
  $paths = array();
  $query = db_query('SELECT * FROM {webform_paths} WHERE nid = %d', $node->nid);
  while ($rs = db_fetch_array($query)) {
    $pathid = $rs['pathid'];
    $paths[$pathid] = $rs;
  }
  return $paths;
}

/**
 * Creates or updates a webform path.
 */
function webform_paths_path_save($path) {
  // In case of updating
  if ($path['pathid'] > 0) {
    // Specify the schema key
    $key = array('pathid');
    // Load the old path
    $old_path = webform_paths_load($path['pathid']);
    path_set_alias(NULL, $old_path->path);
  }

  // Save the path to our table:
  drupal_write_record('webform_paths', $path, $key);

  // Update necessary aliases
  $real_path = 'node/' . $path['nid'] . '/path/' . $path['pathid'];
  path_set_alias($real_path, $path['path']);
  return $path;
}