我在zf2中创建一个表关系模型，并希望以正确的方式创建它（没有doctrine模块）。 我有树桌
| Tables_in_zf2_a |
+------------------+
| article |
| article_language |
| article_text |
+------------------+
+-----------+-----------+------+-----+---------------------+-----------------------------+
| Field | Type | Null | Key | Default | Extra |
+-----------+-----------+------+-----+---------------------+-----------------------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| parent_id | int(11) | NO | MUL | NULL | |
| added | timestamp | NO | | 0000-00-00 00:00:00 | on update CURRENT_TIMESTAMP |
+-----------+-----------+------+-----+---------------------+-----------------------------+
+-------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+----------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| code | varchar(6) | YES | | NULL | |
| title | varchar(32) | YES | | NULL | |
+-------+-------------+------+-----+---------+----------------+
+-----------------+---------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------------+---------+------+-----+---------+-------+
| article_id | int(11) | NO | PRI | NULL | |
| language_id | int(11) | NO | PRI | NULL | |
| title | text | YES | | NULL | |
| announce | text | YES | | NULL | |
| text | text | YES | | NULL | |
| seo_title | text | YES | | NULL | |
| seo_keywords | text | YES | | NULL | |
| seo_description | text | YES | | NULL | |
| href | text | YES | | NULL | |
+-----------------+---------+------+-----+---------+-------+
article_text表与article表相关，article_id是article表的主要唯一索引。并且与language_id的article_language表有关，这是主要的 问题是与zend框架2 db模块建立关系的最佳实践是什么？ 谢谢！