function pagination_nodeapi in Pagination (Node) 6

@desc Implementation of hook_nodeapi()

File

./pagination.module, line 274

pagination.module @desc Allow for arbitrary nodes to be paginated. administrators can set which nodes they wish to paginate, and the length of content required to split a node into pages. Alternatively, content creators can set manual break points…

Code

function pagination_nodeapi(&$node, $op, $teaser = null, $page = null) {
  switch ($op) {
    case 'delete':

    // Fall through
    case 'presave':
      $pg =& Pagination::getInstance();
      $style = $pg
        ->getStyle($node->type);
      $paging = $pg
        ->getValue($node->type);
      if ($paging > PAGINATION_AUTO and $style > PAGINATION_DEFAULT) {
        $query = "DELETE FROM {node_pagination} WHERE nid = %d";
        db_query($query, $node->nid);
        if ($op == 'presave' and $node->pagination_headers) {
          $headers = explode("\n", str_replace("\r\n", "\n", $node->pagination_headers));
          $query = "INSERT INTO {node_pagination} (nid, headers) VALUES (%d, '%s')";
          db_query($query, $node->nid, serialize($headers));
        }
      }
      break;
    case 'validate':
      $pg =& Pagination::getInstance();
      $style = $pg
        ->getStyle($node->type);
      $paging = $pg
        ->getValue($node->type);

      // Add javascript for validation failure cases.
      if ($paging > PAGINATION_AUTO and $style > PAGINATION_DEFAULT) {
        drupal_add_js(drupal_get_path('module', 'pagination') . '/pagination.js');
      }
      break;
    case 'view':

      // Main pagination fun.
      $pg =& Pagination::getInstance();
      $page = $pg
        ->getPageVar();
      $paging = $pg
        ->getValue($node->type);
      $style = $pg
        ->getStyle($node->type);
      $ignore = array_map('trim', explode(',', variable_get('pagination_ignore', '')));
      $build = $node->build_mode === NODE_BUILD_NORMAL;
      if (!$teaser and $paging and $page !== 'show' and $build and !in_array($node->nid, $ignore, true)) {
        $pg
          ->paginate($node->content['body']['#value'], $paging);
        $node->content['body']['#value'] = $pg
          ->getPage($page);
        if ($style < PAGINATION_TOC) {
          $node->content['pagination_pager'] = array(
            '#weight' => module_exists('content') ? content_extra_field_weight($node->type, 'pagination_pager') : 50,
            '#value' => $pg
              ->getPager(),
          );
        }
        if ($style > PAGINATION_DEFAULT and $pg
          ->getPageCount() > 1) {
          $node->content['pagination_toc'] = array(
            '#weight' => module_exists('content') ? content_extra_field_weight($node->type, 'pagination_toc') : -50,
            '#value' => $pg
              ->getToc($node->nid),
            '#total_pages' => $pg
              ->getPageCount(),
          );
        }
      }
      break;
  }
}