CakePHP两次加入相同的模型

Question

我有以下表格：

domains (id, name)
alignments (id, name, description)
alignments_domains(id, alignment_id, domain_id)
domains_domains(id, domain_id, authorized_domain_id)

我所有的外键都已创建，我想要实现的是为每个域拥有多个授权域和多个授权对齐。

事实是，当我烘焙蛋糕模型、控制器和视图时，我有这个模型：

class Domain extends AppModel

public $validate = array(
    'name' => array(
        'notEmpty' => array(
            'rule' => array('notEmpty'),
            //'message' => 'Your custom message here',


        //'allowEmpty' => false,
                //'required' => false,
                //'last' => false, // Stop validation after this rule
                //'on' => 'create', // Limit validation to 'create' or 'update' operations
            ),
        ),
    );

    public $hasAndBelongsToMany = array(
        'Alignment' => array(
            'className' => 'Alignment',
            'joinTable' => 'alignments_domains',
            'foreignKey' => 'domain_id',
            'associationForeignKey' => 'alignment_id',
            'unique' => 'keepExisting',
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'finderQuery' => '',
        ),
        'Domain' => array(
            'className' => 'Domain',
            'joinTable' => 'domains_domains',
            'foreignKey' => 'domain_id',
            'associationForeignKey' => 'domain_id',
            'unique' => 'keepExisting',
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'finderQuery' => '',
        ),
        'Role' => array(
            'className' => 'Role',
            'joinTable' => 'roles_domains',
            'foreignKey' => 'domain_id',
            'associationForeignKey' => 'role_id',
            'unique' => 'keepExisting',
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'finderQuery' => '',
        )
    );

}

但是当我尝试插入一个新域时，它给我这个错误：

Error: SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`mythall_php`.`alignments_domains`, CONSTRAINT `alignments_domains_ibfk_2` FOREIGN KEY (`domain_id`) REFERENCES `domains` (`id`))

您对我如何使这成为可能有什么建议吗？谢谢！

Answer 1

我是 cakephp 的新手。

我遇到过此类错误。我的错误是我在设置外键之前添加了更多行。

尝试在 phpmyadmin 中清空这四个表（再次检查关系约束）添加域、对齐方式并执行此操作。

并查看此站点以获取一些参考：enter link description here

Answer 2

我找到的解决方案是将 hasandbelongtomany 'domain' 更改为 'authorized_domain' 并将关联的外键更改为 'authorized_domain_id' 然后烘焙工作正常。

'Authorized_Domain' => array(
            'className' => 'Domain',
            'joinTable' => 'domains_domains',
            'foreignKey' => 'domain_id',
            'associationForeignKey' => 'authorized_domain_id',
            'unique' => 'keepExisting',
            'conditions' => '',
            'fields' => '',
            'order' => '',
            'limit' => '',
            'offset' => '',
            'finderQuery' => '',
        )

CakePHP两次加入相同的模型

CakePHP Joining same model twice

php

mysql

sql

cakephp

model