我已经使用CakePHP 3.7烘焙了一个旧版应用程序
数据库包含3个表,如下所示:regulations
,groups
,filters
。就应用程序而言,层次结构是:
表模式如下:
mysql> describe regulations;
+-------+---------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+---------------------+------+-----+---------+----------------+
| id | tinyint(3) unsigned | NO | PRI | NULL | auto_increment |
| name | varchar(255) | NO | | NULL | |
| label | varchar(255) | NO | | NULL | |
+-------+---------------------+------+-----+---------+----------------+
4 rows in set (0.09 sec)
mysql> describe groups;
+---------------+-----------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+---------------+-----------------+------+-----+---------+----------------+
| id | int(4) unsigned | NO | PRI | NULL | auto_increment |
| name | varchar(255) | NO | | NULL | |
| regulation_id | int(4) unsigned | NO | MUL | NULL | |
| label | varchar(255) | NO | | NULL | |
+---------------+-----------------+------+-----+---------+----------------+
4 rows in set (0.03 sec)
mysql> describe filters;
+----------+----------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------+----------------------+------+-----+---------+----------------+
| id | smallint(5) unsigned | NO | PRI | NULL | auto_increment |
| name | varchar(100) | NO | | NULL | |
| label | text | NO | | NULL | |
| group_id | int(4) unsigned | NO | MUL | NULL | |
+----------+----------------------+------+-----+---------+----------------+
因此,当我烘焙应用程序时,我得到了以下Table类关系。全部都在initialize()
方法内:
// RegulationsTable.php
$this->hasMany('Groups', [
'foreignKey' => 'regulation_id'
]);
// GroupsTable.php
$this->belongsTo('Regulations', [
'foreignKey' => 'regulation_id',
'joinType' => 'INNER'
]);
$this->hasMany('Filters', [
'foreignKey' => 'group_id'
]);
// FiltersTable.php
$this->belongsTo('Groups', [
'foreignKey' => 'group_id',
'joinType' => 'INNER'
]);
在我看来,这似乎是正确的,因为就架构而言,这些都是关系。
但是,当我尝试在Controller中执行此操作时:
$regulations = TableRegistry::getTableLocator()->get('Regulations');
$data = $regulations->find('all')->contain(['Groups', 'Filters']);
$data = $data->toArray();
debug($data);
出现错误:
“法规”中未定义“过滤器”关联。
很明显。因为通过组(GroupsTable.php
)模型来处理该关联。过滤器和法规之间没有直接关系;它必须通过网上论坛。
请有人能告诉我烘焙模型出了什么问题,以免产生错误吗?
有关背景信息:用例正在以分层格式(规则->组->过滤器)获取数据列表(特别是每个表中的label
)。