在自己定义主题中输出结果时，有三个部分或很多其它特殊的函数。如 hook_menu，Page Callback。MODULE_theme 钩子
1、hook_menu
为了使用自己定义的实体。像创建、编辑、删除、查看实体的功能，就必须要创建一些 Menu path。这里创建、编辑、删除是与Drupal's Form API相关的，通过hook_menu，能够定义我们须要的路径来訪问这个新创建的实体内容
function my_module_menu() {$items['my_entity/%my_entity'] = array('title callback' => 'my_entity_page_title','title arguments' => array(1),'page callback' => 'my_entity_page_view','page arguments' => array(1),'access arguments' => array('view entities'),'type' => MENU_CALLBACK,);return $items;}
2、Page Callback
在上面的样例中。我们在訪问这个路径时，定义了 page callback 相应的 my_entity_page_view 函数，因此，接下来就须要创建这个函数，例如以下
/*** This is the callback we defined to be executed when a user* requests http://mysite.com/my_entity/1 (1 is just an example ID,* it could be anything). This function will set up the data and* prepare the render array(s). You will specify the template to* use in this callback. The critical thing to note below is the* order in which field_attach_prepare_view, entity_prepare_view* and field_attach_view are called. These functions must be called* in this order and they must be called before you specify which* theme to use.*/function my_entity_page_view($entity, $view_mode='full') {$entity_type = $entity->entityType();$entity_id = entity_id($entity_type, $entity);//// Remove previously built content, if exists//$entity->content = array();$entity->title = filter_xss($entity->title);//// Build the fields content//field_attach_prepare_view($entity_type, array($entity_id => $entity), $view_mode);entity_prepare_view($entity_type, array($entity_id => $entity));$entity->content += field_attach_view($entity_type, $entity, $view_mode);// Specify the theme to use and set the #element. Note that the key// you use to pass the entity object must match the key you set in the// variables in my_module_theme(). So in the case below, we use the key// named #element because in my_module_theme() we set the following code://// array(// 'my_entity' => array(// 'variables' => array('element' => null),// 'template' => 'my_entity'// ),// );//$entity->content += array('#theme' => $entity_type,'#element' => $entity,'#view_mode' => $view_mode,'#language' => LANGUAGE_NONE,);return $entity->content;}
3、MODULE_theme() Hook
到眼下为止，为了这个实体我们已经定义了菜单项还有CALL BACK返回值，接下来。剩下的就须要创建一个指向模板的文件。看上面部分内容，能够看到内容为：
$entity->content += array('#theme' => 'my_entity'); 意思是说。指向 my_entity ，那么，应该怎样定义呢？ function my_module_theme($existing, $type, $theme, $path) {return array('my_entity' => array('variables' => array('element' => null),'template' => 'my_entity_template'),);}
4、依据第三部分的内容。我们则须要创建名为 my_entity_template.tpl.php 的模板文件
[php// In a real module variables should be manipulated in a preprocess function.$content = $element->content;] <div class="[php print $classes; ]"> [php print render($content['title']); ] [php print render($content['field_date']); ][php print render($content['field_author']);][php print render($content['field_image']);] [php print render($content['field_description']);]
原文链接：https://drupal.org/node/1238606
