function _taxonomy_access_entity_fields in Taxonomy Access Control 7

Helper function to extract the taxonomy fields from an entity.

Parameters

object $entity: The entity object.

Return value

array An associative array of field information, containing:

• field_list: A flat array of all this entity's taxonomy fields, with the format $field_name => $field_name.
• langcodes: A flat array of all langcodes in this entity's fields, with the format $langcode => $langcode.
• data: An associative array of non-empty fields:
  • $field_name: An associative array keyed by langcode.
    • $langcode: Array of field values for this field name and langcode.

See also

http://drupal.org/node/1220168

Related topics

1 call to _taxonomy_access_entity_fields()

_taxonomy_access_field_validate in ./taxonomy_access.create.inc

Validates form submissions of taxonomy fields for create grants.

File

./taxonomy_access.create.inc, line 700

Implements the Add Tag (create) grant on editing forms.

Code

function _taxonomy_access_entity_fields($entity_type, $entity, $bundle) {

  // Maintain separate lists of field names and langcodes for quick comparison.
  $fields = array();
  $fields['field_list'] = array();
  $fields['langcodes'] = array();
  $fields['data'] = array();

  // If there is no entity, return the empty structure.
  if (!$entity) {
    return $fields;
  }

  // Get a list of possible fields for the bundle.
  // The bundle does not contain the field type (see #122016), so our only use
  // for it is the field names.
  $possible = array_keys(field_info_instances($entity_type, $bundle));

  // Sort through the entity for relevant field data.
  foreach ($entity as $field_name => $field) {

    // Only proceed if this element is a valid field for the bundle.
    if (in_array($field_name, $possible, TRUE)) {

      // Check whether each entity field is a taxonomy field.
      $info = field_info_field($field_name);
      if ($info['type'] == 'taxonomy_term_reference') {
        foreach ($field as $langcode => $values) {

          // Add non-empty fields to the lists.
          if (!empty($values)) {
            $fields['langcodes'][$langcode] = $langcode;
            $fields['field_list'][$field_name] = $field_name;
            $fields['data'][$field_name][$langcode] = $values;
          }
          unset($values);
        }
      }
    }
    unset($info);
    unset($field);
  }
  unset($entity);
  return $fields;
}