php – Yii – 使用migrate添加外键时出错

我使用migrate create创建了一个迁移,并在其上添加了以下代码：

<?PHP

class m131220_121449_create_all_tables extends CDbMigration
{   
    // Use safeUp/safeDown to do migration with transaction
    public function safeUp() {
        // MEMBERS TABLE
        $this->createTable("members", array(
            'uniq_id' => 'pk',
            'personel_num' => 'int(10) NOT NULL',
            'password' => 'string NOT NULL',
            'name' => 'string DEFAULT NULL',
            'lastupdate' => 'timestamp DEFAULT CURRENT_TIMESTAMP',
        ), 'ENGINE=InnoDB');

        // RESERVED TABLE
        $this->createTable("reserved", array(
                'uniq_id' => 'pk',
                'personel_num' => 'int(10) NOT NULL',
                'RsvdDay' => 'date NOT NULL',
                'date_created' => 'timestamp DEFAULT CURRENT_TIMESTAMP',
        ), 'ENGINE=InnoDB');

        // Add Foreign Keys Relations for RESERVED
        $this->addForeignKey("fk_rsvd_user", "reserved", "personel_num", "members", "personel_num", "CASCADE", "RESTRICT");
        }

}

但是,当我想要进行此迁移时,我在尝试创建外键时遇到了常规错误#1005.

这是错误的图像：

答案被发现：

外键的引用必须是其他表中的主键.

解决方法:

$this->createTable("members", array(
        'uniq_id' => 'pk',
        'personel_num' => 'int(10) NOT NULL',
        'password' => 'string NOT NULL',
        'name' => 'string DEFAULT NULL',
        'lastupdate' => 'timestamp DEFAULT CURRENT_TIMESTAMP',
        'UNIQUE KEY `personel_num` (`personel_num`)',
    ), 'ENGINE=InnoDB');

使personel_num唯一,使其成为外键.您也可以删除uniq_id并将personel_num设为pk.