Drupal → Хуки Views

function hook_views_pre_view(&$view, &$display_id, &$args) {
  // Change the display if the acting user has 'administer site configuration'
  // permission, to display something radically different.
  // (Note that this is not necessarily the best way to solve that task. Feel
  // free to contribute another example!)
  if ($view->name == 'my_special_view' && user_access('administer site configuration') && $display_id == 'public_display') {
    $display_id = 'private_display';
  }
}

function hook_views_pre_build(&$view) {
  // Because of some unexplicable business logic, we should remove all
  // attachments from all views on Mondays.
  // (This alter could be done later in the execution process as well.)
  if (date('D') == 'Mon') {
    unset($view->attachment_before);
    unset($view->attachment_after);
  }
}

function hook_views_post_build(&$view) {
  // If the exposed field 'type' is set, hide the column containing the content
  // type. (Note that this is a solution for a particular view, and makes
  // assumptions about both exposed filter settings and the fields in the view.
  // Also note that this alter could be done at any point before the view being
  // rendered.)
  if ($view->name == 'my_view' && isset($view->exposed_raw_input['type']) && $view->exposed_raw_input['type'] != 'All') {
    // 'Type' should be interpreted as content type.
    if (isset($view->field['type'])) {
      $view->field['type']->options['exclude'] = TRUE;
    }
  }
}

function hook_views_pre_execute(&$view) {
  // Whenever a view queries more than two tables, show a message that notifies
  // view administrators that the query might be heavy.
  // (This action could be performed later in the execution process, but not
  // earlier.)
  if (count($view->query->tables) > 2 && user_access('administer views')) {
    drupal_set_message(t('The view %view may be heavy to execute.', array('%view' => $view->name)), 'warning');
  }
}

function hook_views_query_alter(&$view, &$query) {
  // (Example assuming a view with an exposed filter on node title.)
  // If the input for the title filter is a positive integer, filter against
  // node ID instead of node title.
  if ($view->name == 'my_view' && is_numeric($view->exposed_raw_input['title']) && $view->exposed_raw_input['title'] > 0) {
    // Traverse through the 'where' part of the query.
    foreach ($query->where as &$condition_group) {
      foreach ($condition_group['conditions'] as &$condition) {
        // If this is the part of the query filtering on title, chang the
        // condition to filter on node ID.
        if ($condition['field'] == 'node.title') {
          $condition = array(
            'field' => 'node.nid',
            'value' => $view->exposed_raw_input['title'],
            'operator' => '=',
          );
        }
      }
    }
  }
}

function hook_views_post_execute(&$view) {
  // If there are more than 100 results, show a message that encourages the user
  // to change the filter settings.
  // (This action could be performed later in the execution process, but not
  // earlier.)
  if ($view->total_rows > 100) {
    drupal_set_message(t('You have more than 100 hits. Use the filter settings to narrow down your list.'));
  }
}

function hook_views_pre_render(&$view) {
  // Scramble the order of the rows shown on this result page.
  // Note that this could be done earlier, but not later in the view execution
  // process.
  shuffle($view->result);
}

function hook_views_post_render(&$view, &$output, &$cache) {
  // When using full pager, disable any time-based caching if there are less
  // then 10 results.
  if ($view->query->pager instanceof views_plugin_pager_full && $cache->options['type'] == 'time' && count($view->result) < 10) {
    $cache['options']['results_lifespan'] = 0;
    $cache['options']['output_lifespan'] = 0;
  }
}