function node_block_access

Implements hook_block_access().

Checks the content type specific visibility settings and removes the block if the visibility conditions are not met.

File

drupal/core/modules/node/node.module, line 1984

The core module that allows content to be submitted to the site.

Code

function node_block_access($block) {
  $visibility = $block
    ->get('visibility');
  if (!empty($visibility)) {
    if (!empty($visibility['node_type']['types'])) {
      $allowed_types = array_filter($visibility['node_type']['types']);
    }
    if (empty($allowed_types)) {

      // There are no node types selected in visibility settings so there is
      // nothing to do.
      // @see node_form_block_form_alter()
      return;
    }
    $node = menu_get_object();
    $node_types = node_type_get_types();
    if (arg(0) == 'node' && arg(1) == 'add' && arg(2)) {
      $node_add_arg = strtr(arg(2), '-', '_');
    }

    // For blocks with node types associated, if the node type does not match
    // the settings from this block, deny access to it.
    if (!empty($node)) {

      // This is a node or node edit page.
      return in_array($node->type, $allowed_types);
    }
    elseif (isset($node_add_arg) && isset($node_types[$node_add_arg])) {

      // This is a node creation page
      return in_array($node_add_arg, $allowed_types);
    }
    else {

      // This page does not match the $allowed_types so deny access.
      return FALSE;
    }
  }
}