$field){ // What type of entity are we to load. switch($field['type']){ case 'node_reference': $entity_type = 'node'; break; case 'user_reference': $entity_type = 'user'; break; } if(isset($form[$field_name])){ foreach(array_keys($form[$field_name]) as $field_language){ if(@isset($form[$field_name][$field_language]['#type']) && $form[$field_name][$field_language]['#type'] == 'select'){ // We only add our preview if there isn't an ajax function already // associated with the select box. This could be altered to work // if there is already an ajax function associated with the box. if(!isset($form[$field_name][$field_language]['#ajax'])){ // We add a CSS file to allow us to do a little themeing. $form['#attached']['css'][] = drupal_get_path('module', 'entityconnectpreview') . '/css/entityconnectpreview.css'; // We add a preview to the form. $ids = FALSE; if(!empty($form_state['values'][$field_name][$field_language])){ $ids = array(); $key = array_keys($field['columns']); $key = array_pop($key); foreach($form_state['values'][$field_name][$field_language] as $value){ $ids[] = $value[$key]; } }elseif(!empty($form[$field_name][$field_language]['#default_value'])){ $ids = $form[$field_name][$field_language]['#default_value']; } if($ids){ $entity_to_preview = entity_load($entity_type, $ids); $entity_preview = entity_view($entity_type, $entity_to_preview, 'entityconnectpreview'); $form[$field_name]['preview'] = array( '#markup' => drupal_render($entity_preview) ); }else{ $form[$field_name]['preview'] = array( '#markup' => '' ); } $form[$field_name]['preview']['#prefix'] = '

'; $form[$field_name]['preview']['#suffix'] = '

'; $form[$field_name][$field_language]['#ajax'] = array( 'callback' => 'entityconnectpreview_ajax_callback', 'wrapper' => $field_name . '-preview', 'method' => 'replace', 'effect' => 'fade' ); } } } } } } /** * AJAX callback */ function entityconnectpreview_ajax_callback($form, $form_state){ // We get the field name from the triggering element name. $field_name = substr($form_state['input']['_triggering_element_name'], 0, strpos($form_state['input']['_triggering_element_name'], '[')); return $form[$field_name]['preview']; } /** * Implements hook_entity_view_alter() * * We remove the submitted section from a node view to keep it as clean as * possible. This should possibly be an option for the field. */ function entityconnectpreview_process_node(&$variables){ $variables['submitted'] = ''; $variables['links'] = ''; } /** * Implements hook_entity_info_alter(). * * Add the entityconnectpreview display typel. */ function entityconnectpreview_entity_info_alter(&$entity_info){ $supported_entity_types = array( 'node', 'user' ); foreach($supported_entity_types as $entity_type){ if(!empty($entity_info[$entity_type]['view modes'])){ $entity_info[$entity_type]['view modes']['entityconnectpreview'] = array( 'label' => t('Entity Connect Preview'), 'custom settings' => TRUE ); } } }