rmontero

Create link from text and url

$url = Url::fromRoute($route_name);
$link = Link::fromTextAndUrl($text, $url);

Create link from route

$link = Link::createFromRoute('Link Text', 'route_name')->getUrl();

rmontero

Create link from text and url

$url = Url::fromRoute($route_name);
$link = Link::fromTextAndUrl($text, $url);

Create link from route

$link = Link::createFromRoute('Link Text', 'route_name')->getUrl();

rmontero

Dynamic Link Action

1. Add a class under plugin/Derivative by extending \Drupal\Component\Plugin\Derivative\DeriverBase
2. Add to *.links.action.yml
3. Example:

field_ui.field_storage_config_add:
  class: \Drupal\Core\Menu\LocalActionDefault
  deriver: \Drupal\field_ui\Plugin\Derivative\FieldUiLocalAction

rmontero

<?php

function peer_review_install() {
  drupal_install_schema('peer_review');
}

function peer_review_uninstall() {
  drupal_uninstall_schema('peer_review');
}

rmontero

// cod_session.module @ 161
      // If this is content-type is not unique make the widget a select list.
      if (variable_get('cod_unique_' . $form['#node']->type, COD_SCHEDULE_SINGLE) == COD_SCHEDULE_MULTIPLE) {
        $form['field_session_room']['#type'] = 'nodereference_select';
        // Keep the widget from allowing multiple values.
        $form['#field_info']['field_session_room']['multiple'] = FALSE;
      }