Metatag module integration

Changing to a feature request. I haven't looked at metatag's implementation but if my assumption is right we could support it in taxonomy_display.

I have written the following hook function to add to taxonomy_display.module which seems to function as expected. Still haven't got my head around writing a patch, sorry:

/**
 * Implements hook_metatag_views_post_render_get_entity().
 */
function taxonomy_display_metatag_views_post_render_get_entity($view) {
  if (isset($view->override_path) && strpos($view->override_path, 'taxonomy/term/') !== FALSE) {
    if (!empty($view->args) && is_numeric($view->args[0])) {
      $id = $view->args[0];
      $entities = entity_load('taxonomy_term', array($id));
      if (!empty($entities)) {
        $entity = array_pop($entities);
        metatag_entity_view($entity, 'taxonomy_term', 'full', NULL, TRUE);
      }
    }
  }
}

When this gets committed:
https://www.drupal.org/node/1783968

The code needs to be:

/**
 * Implements hook_metatag_views_post_render_get_entity().
 */
function taxonomy_display_metatag_views_post_render_get_entity($view) {
  if (isset($view->override_url) && strpos($view->override_url, 'taxonomy/term/') !== FALSE) {
    if (!empty($view->args) && is_numeric($view->args[0])) {
      $id = $view->args[0];
      $entities = entity_load('taxonomy_term', array($id));
      if (!empty($entities)) {
        $entity = array_pop($entities);
        metatag_entity_view($entity, 'taxonomy_term', 'full', NULL, TRUE);
      }
    }
  }
}

#2 in patch form, untested.

#3 in patch form, untested.

Reroll of #4 without the vim-tastic syntax error. This is the code from #2.

I tested it this time, and it seems to work wonderfully! Thanks, alexp999!

Thanks for making the patches.

#6 worked, thanx!

After rolling #26 from https://www.drupal.org/node/1783968 had to roll #6 back and re-roll #5 - metatags worked!

Hi!
Seems like there is a need for another patch. The issue happens when you have taxonomy_display + facet_api + facetapi_pretty_paths. Metatags works on a term page but when you apply any of the facet filter - they don't. The problem is in Metatag's metatag_entity_view() function. There are some checks that cannot be passed with facetapi_pretty_paths's path. So I grabbed the heart of that function and repeated it in taxonomy_display - no more, no less.

When this gets committed:
https://www.drupal.org/node/1783968
you'll need this one

Sorry, this was my first patches - not a patches actually :)
Here is correct.