Kohana ORM关系

Question

我试图去处理Kohana ORM，但我有点卡住了。 我已创建类别和发布模型，并根据category_id建立关系。

我可以分别获取帖子和类别模型，但我似乎无法使用关系获取它们。例如：

// Get first category 
$category = ORM::factory('category', 1); 

foreach ($category->posts as $post) 
{ 
    echo $post->title;     
} 

以上只是给了我一个空白屏幕（我知道我不应该在输出控制器任何东西，只是想获得它的工作第一）。

print_r($category); 

给我此：

Model_Category对象（[_has_many：保护] =>数组（[帖] =>数组（[模型] =>讯息[foreign_key] => CATEGORY_ID [通过] =数组（）[__保存] =>数组（）[_validate：保护] => [_rules：protected ] ArrayList（）[_callbacks：protected] => Array（）[_filters：protected] => Array（）[_labels：protected] => Array（）[_object：protected] => Array（[id] => 1 [title] => [description] =>）[_changed：protected] => Array（）[_related：protected] => Array（）[_loaded：protected] => [_saved：protected] => 1 [_sorting： protected] => Array（[id] => ASC）[_foreign_key_suffix：protected] => _id [_object_name：protected] => category [_object_plural：protected] => categories [_table_name：protected] => categories [_table_columns：protected] => Array（[id] =>数组（[type] => int [min] => 0 [max] => 65535 [column_name] => id [column_default] => [data_type] => smallint unsigned [is_nullable] => [ordinal_position] =>显示] => 6 [comment] => [extra] => auto_increment [key] => PRI [privileges] =>选择，插入，更新，引用）[title] => Array（[type] => string [character_maximum_length ] => 65535 [column_name] => title [column_default] => [data_type] => text [is_nullable] => [ordinal_position] => 2 [collat​​ion_name] => latin1_swedish_ci [comment] => [extra] => [key ] => [privileges] => select，insert，update，references）[description] => Array [character] > text [is_nullable] => [ordinal_position] => 3 [collat​​ion_name] => latin1 _swedish_ci [comment] => [extra] => [key] => [privileges] =>选择，插入，更新，引用））[_ignored_columns：protected] => Array（）[_updated_column：protected] => [_created_column： Database_MySQL Object（[_connection_id：protected] => [_primary_key：protected] => id [_primary_val：protected] => name [_table_names_plural：protected] => 1 [_reload_on_wakeup：protected] => ] => d6ad44aa068ae69071b9614f2a4a760bf55d9307 [_identifier：protected] =>[last_query] => SHOW FULL COLUMNS FROM categories [[_instance：protected] => default [_connection：protected] =>资源ID＃36 [_config：protected] => Array（[type] => mysql [connection ] =>数组（[hostname] => localhost [database] => cms_test_kohana [persistent] =>）[table_prefix] => [charset] => utf8 [caching] => [profiling] => 1））[_db_applied： Array（）[_db_pending：protected] => Array（）[_db_reset：protected] => 1 [_db_builder：protected] => [_with_applied：protected] => Array（）[_preload_data：protected] => Array（））

任何人都可以帮忙吗？

任何意见赞赏。

谢谢。

Answer 1

职位是一种关系，而不是一个集合。在关系上使用find_all（）或find（）来返回一组记录。

foreach ($category->posts->find_all() as $post) { 
    echo $post->title;     
} 

你也可以运用其他各种方法之间的关系使用排序依据，在那里，等筛选返回结果...