function hook_node_view

Act on a node that is being assembled before rendering.

The module may add elements to $node->content prior to rendering. This hook will be called after hook_view(). The structure of $node->content is a renderable array as expected by backdrop_render().

When $view_mode is 'rss', modules can also add extra RSS elements and namespaces to $node->rss_elements and $node->rss_namespaces respectively for the RSS item generated for this node. For details on how this is used, see node_feed().

Parameters

Node $node: The node that is being assembled for rendering.

$view_mode: The $view_mode parameter from node_view().

$langcode: The language code used for rendering.

See also

comment_node_view()

hook_entity_view()

Related topics

File

core/modules/node/node.api.php, line 779

Hooks provided by the Node module.

Code

function hook_node_view(Node $node, $view_mode, $langcode) {
  $node->content['my_additional_field'] = array(
    '#markup' => $additional_field,
    '#weight' => 10,
    '#theme' => 'my_module_my_additional_field',
  );
}