Last updated April 7, 2014. Created on April 6, 2012.
Edited by Alan D., Gold, adityamenon. Log in to edit this page.

This belongs inside your module code.

You can get a collection of nodes matching particular parameters by using EntityFieldQuery, instead of writing an SQL statement. I had a hard time getting all the syntax together, so here are a couple of simple samples:

// We use the machine name to ensure we have the proper vocab
// that is not fixed to a specific vid on a installation.

// Define this outside of the two conditions to avoid PHP notices.
$term_options_list = array();     
if (
$range_vocab = taxonomy_vocabulary_machine_name_load('range')) {
$efq = new EntityFieldQuery();
$result = $efq->entityCondition('entity_type', 'taxonomy_term')
propertyCondition('vid', $range_vocab->vid)
  if (!empty(
$result['taxonomy_term'])) {
// The results contain an array of entity stubs keyed by {term}.tid.
    // The stub only has {term}.tid and vocabulary_machine_name.
$first_term_stub = current($result['taxonomy_term']);
$first_term_tid = key($result['taxonomy_term']);

// To load all terms.
$terms = taxonomy_term_load_multiple(array_keys($result['taxonomy_term']));
// To generate an options list.
foreach ($terms as $term) {
// To hook into i18n and everything else, use entity_label().
$term_options_list[$term->tid] = entity_label('taxonomy_term', $term);
// Single language, no term label alters.
$term_options_list[$term->tid] = $term->name;     
// IMPORTANT. This was for a select list that expects raw values.
// If ANYTHING else is required, escape the term names, either here
// or where the name is used.
$safe_term_options_list = array_map('check_plain', $term_options_list);
//get a list of nodes that match your criteria
$nodeQuery = new EntityFieldQuery();
$entities = $nodeQuery->entityCondition('entity_type', 'node')
// change 'food_menu_item' to target content_type
->entityCondition('bundle', 'food_menu_item')
// get only nodes that are 'published'
->propertyCondition('status', 1)
// replace field_food_menu with field_TAXONOMY_NAME
    // replace 2 with the taxonomy ID (tid) you're wanting
->fieldCondition('field_food_menu', 'tid', 2);

// If multiple tids are required use this code in a loop with
  // one tid per fieldCondition()
$restriction_tids = array(13,15);
  foreach (
$restriction_tids as $r_tid){
$entities->fieldCondition('field_food_restrictions', 'tid', $r_tid);

// If you want to check for at least one of a list of tids replace 2
  // with an array.  e.g. array(2,4,5)
$which_menu_tids = array(23,24);
$entities->fieldCondition('field_which_menu', 'tid', $which_menu_tids, 'IN');

// Gets an array keyed by entity type, then entity id that match
  // your criteria. In this case :
  // field_food_menu term ID 2
  // AND field_food_restrictions term ID 13
  // AND field_food_restrictions term ID 15
  // AND field_which_menu term ID 24 OR 24
$result = $entities->execute();

$nodes = array();
  if (!empty(
$result['node'])) {
$nodes = node_load_multiple(array_keys($result['node']));

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belvedere’s picture

the final lines should use node_load_multiple() instead of hitting the db for each entity id.