I am trying to accomplish something like this, but it does not work:
$entity_field['value'] = array_pop(array_pop(field_get_items('comment', $entity, 'field_cost')));
The computed field is on the content node but the information is for the computation is on the comment.
Comment 1 field_important_info
Comment 2 field_important_info
In a case where the field is on the content node, it is quite easy: $entity_field['value'] = $entity->field_important_info[LANGUAGE_NONE]['value'];
Is the only way to do this through query or is there an easier way? Any hints on 1 value or multiple values from comments are appreciated.