I'm really bumping my head on this.

I simply need to add tids from a term reference field on nodes returned by a solr search result.

It's a unique term reference.

I looked for the field in solr console and it's 'im_field_arbo'.

I followed this and that and came to this :


    function MYMODULE_apachesolr_index_document_build(ApacheSolrDocument $document, $entity, $entity_type, $env_id) {
      if(isset($entity->field_arbo)) {
        $document->addField('im_field_arbo', $entity->field_arbo['und'][0]['tid']);

This doesn't throw back any errors.


Then, to retrieve it, I tried either hook_apachesolr_query_alter, hook_apachesolr_query_prepare with :

    $query->addParam('im', 'im_field_arbo');

and hook_apachesolr_modify_query with :

    $params['im'] .= ',im_field_arbo';

Still, no trace of my field in my search results.

Any help ? Thx very much.


I think my field is well indexed : _apachesolr_index_document_build_node works like a charm.

Now the question is : "How do I get them back in search results ?"

  • I know this isn't very helpful, but your code should work (with the addParam() method in hook_apachesolr_query_alter()). I have a nearly identical setup, just using a different field name, and it works great
    – Clive
    Commented Jul 30, 2013 at 11:17
  • Tell a lie, I'm actually using a hook named hook_apachesolr_index_document_build_node(), with _node on the end. Might be worth changing that, clearing the cache, and giving it a try
    – Clive
    Commented Jul 30, 2013 at 11:19
  • Thx @Clive , but still nothing... No error though (after I removed "entity_type" from index_document_build_node's args). Commented Jul 30, 2013 at 11:35

2 Answers 2


To show the field you have added to your Solr index you first need to add it to the search result. Add this to template.php

function template_preprocess_search_result(&$variables) {
  $variables['im_field_arbo'] = $variables['result']['fields']['im_field_arbo'];

Then in your search-result.tpl.php you can access the field like this:

<?php if ($im_field_arbo): ?>
  <?php print $im_field_arbo; ?>
<?php endif; ?>
  • Thx. Very weird : I can't get that function to act on search... Nor var_dump, dpm, even kill won't be fired. In my theme's template.php, either with template_preprocess_search_result or my_theme_preprocess_search_result... Any help ? Commented Aug 2, 2013 at 11:03
  • update : I of course checked preprocessing, with template_preprocess_mymodule_results, and no trace of the field in $variables. Commented Aug 2, 2013 at 11:31
  • You need to put the function template_preprocess_search_result in your themes template.php file. Rename template with the name of your theme. Commented Aug 2, 2013 at 13:42
  • Tried it already :( Commented Aug 2, 2013 at 13:53
  • Still nothing ; does it work also with solr search ? Commented Aug 5, 2013 at 9:39

Try this,

 * Implements hook_apachesolr_process_results().
function mymodule_apachesolr_process_results(&$results) {
  foreach ($results as $key => &$result) {
    $result['foo'] = $result['node']->im_field_arbo;

Call this variable in you search-result.tpl.php e.g.

<?php print $result['foo']; ?>

I think this code will work with the combination of:

function mymodule_apachesolr_query_alter(DrupalSolrQueryInterface $query) {
  $query->addParam('fl', 'im_field_arbo');

function mymodule_apachesolr_index_document_build(ApacheSolrDocument $document, $entity, $entity_type) {
  // I think you should do a foreach here, since you are using multi-valued field.
  foreach ($entity->field_arbo[LANGUAGE_NONE] as $key => $val) {
    $tid = $val['tid'];
    // The 1st letter indicates the data type and the last letter is
    // 'm' for multi-valued.
    $document->addField('im_field_arbo', $tid);

I hope it helps.

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