有人可以帮我添加外键和Codeigniter迁移数据库吗？
这是代码：
原文链接：https://www.f2er.com/php/137126.html这是代码：
public function up()
{
$this->dbforge->add_field(array(
'ID_PELAYANAN' => array(
'type' => 'INT','constraint' => 50,'auto_increment' => TRUE
),'THBLMUT' => array(
'type' => 'VARCHAR','constraint' => '6',),'ID_DIST' => array(
'type' => 'VARCHAR','constraint' => '2','ID_AREA' => array(
'type' => 'VARCHAR','constraint' => '5','ID_RAYON' => array(
'type' => 'VARCHAR','N_RAYON' => array(
'type' => 'CHAR','constraint' => '70',));
$this->dbforge->add_key('ID_PELAYANAN',TRUE);
$this->dbforge->create_table('pelayanan');
}
public function down()
{
$this->dbforge->drop_table('pelayanan');
}
}
我想在此表中将’ID_AREA’,’ID_RAYON’作为Forein Key.我该如何解决这个问题？
