view_unpublished.module in view_unpublished 6

Allow users to view all unpublished nodes, or unpublished nodes of a specific type.

File

view_unpublished.module

<?php

/**
 * @file
 * Allow users to view all unpublished nodes, or unpublished nodes
 * of a specific type.
 */

/**
 * Implementation of hook_perm().
 *
 * Adds a global 'view all unpublished content' permission and also
 * a new permission for each content type.
 */
function view_unpublished_perm() {
  $perms = array(
    'view all unpublished content',
  );
  foreach (node_get_types() as $type => $name) {
    $perms[] = 'view unpublished ' . $type . ' content';
  }
  return $perms;
}

/**
 * Implementation of hook_menu_alter().
 *
 * Modifies the path node/nid to use our access callback.
 */
function view_unpublished_menu_alter(&$items) {
  $old_access_callback = $items['node/%node']['access callback'];
  $old_access_arguments = $items['node/%node']['access arguments'];
  $items['node/%node']['access callback'] = '_view_unpublished_node_access';
  $items['node/%node']['access arguments'] = array(
    1,
    $old_access_callback,
    $old_access_arguments,
  );
}

/**
 * Returns true if the user has 'view all unpublished content' or if
 * they have the permission corresponding to the node's content type.
 */
function _view_unpublished_node_access($node, $old_access_callback, $old_access_arguments) {

  // Only check permissions on nodes that are unpublished.
  if ($node->status == 0) {
    if (user_access('view all unpublished content')) {
      return TRUE;
    }
    if (user_access('view unpublished ' . $node->type . ' content')) {
      return TRUE;
    }
  }

  // If none of the above conditions were satisfied, then use the original callback.
  // Find where the node object should be
  foreach ($old_access_arguments as $k => $v) {
    if ($v == 1) {
      $old_access_arguments[$k] = $node;
    }
  }
  return call_user_func_array($old_access_callback, $old_access_arguments);
}

/**
 * Implementation of hook_views_data_alter()
 */
function view_unpublished_views_data_alter(&$data) {

  // published status + extra handler is taken over by our handler
  $data['node']['status_extra']['filter']['handler'] = 'view_unpublished_handler_filter_node_status';
}

/**
 * Implementation of hook_views_handlers()
 */
function view_unpublished_views_handlers() {
  return array(
    'info' => array(
      'path' => drupal_get_path('module', 'view_unpublished'),
    ),
    'handlers' => array(
      'view_unpublished_handler_filter_node_status' => array(
        'parent' => 'views_handler_filter_node_status',
      ),
    ),
  );
}

/**
 * Implementation of hook_views_query_substitutions().
 */
function view_unpublished_views_query_substitutions() {
  $substitutions = array(
    '***VIEWALLUNPUBLISHED_NODES***' => intval(user_access('view all unpublished content')),
  );
  foreach (node_get_types() as $type => $name) {
    $substitutions["***VIEWUNPUBLISHED_{$type}***"] = intval(user_access('view unpublished ' . $type . ' content'));
  }
  return $substitutions;
}

Functions

Name	Description
view_unpublished_menu_alter	Implementation of hook_menu_alter().
view_unpublished_perm	Implementation of hook_perm().
view_unpublished_views_data_alter	Implementation of hook_views_data_alter()
view_unpublished_views_handlers	Implementation of hook_views_handlers()
view_unpublished_views_query_substitutions	Implementation of hook_views_query_substitutions().
_view_unpublished_node_access	Returns true if the user has 'view all unpublished content' or if they have the permission corresponding to the node's content type.