php第五章

yii框架

指定控制器

?r=hello/index表示：index.php 跳转到HelloController控制器中actionIndex函数

例子：

http://localhost:63342/htdocs/yii_basic/web/index.php?r=hello/query

HelloController.php

<?php
/**
* Created by PhpStorm.
* User: forr
* Date: 15/10/2
* Time: 12:02
*/
namespace app\controllers;

use yii\web\Controller;
use app\models\FirstTest;

class HelloController extends Controller
{
public function  actionIndex()
{
$request = \YII::$app->request;
echo $request->get('id');
//        echo 'hello world 23333333';
//跳转
//        $this->redirect('https://www.baidu.com/');
//下载文件
//        $response = \YII::$app->response;
//        $response->sendFile('./favicon.ico');//路径web/favicon.ico
}
//查询数据
public function  actionQuery()
{
echo 'my db';
$sql = 'select * from first_test where id = :id';
$list = FirstTest::findBySql($sql,array(':id'=>1))->all();
print_r($list).'<br/>';
//批量查询每次查询2条记录
$sql = 'select * from first_test';
foreach(FirstTest::find()->batch(2) as $test)
{
echo count($test);
}
}
//删除数据
public function actionDelete()
{
//        $sql = 'select * from first_test where id = :id';
//        $list = FirstTest::findBySql($sql,array(':id'=>4))->all();
//        $list[0]->delete();
//或
FirstTest::deleteAll('id = :id',array(':id'=>3));
}
//添加数据
public function actionAdd()
{
$test1 = new FirstTest();
$test1->name = '张杰';
$test1->title = '逆战';
$test1->age = 32;
//启动校验规则
$test1->validate();
if($test1->hasErrors())
{
echo '名称过长,不符合规则';
die;
}
$test1->save();
}

}

FirstTest.php

<?php
/**
* Created by PhpStorm.
* User: forr
* Date: 15/10/2
* Time: 16:40
*/
namespace app\models;

use yii\db\ActiveRecord;

class FirstTest extends ActiveRecord{

public function rules()
{
return [
// 有个有效的名字
['name', 'string','length'=>[0,10]],
];
}
}

Orders.php

<?php
/**
* Created by PhpStorm.
* User: forr
* Date: 15/10/2
* Time: 16:40
*/
namespace app\models;

use yii\db\ActiveRecord;

class Orders extends ActiveRecord{
public function getCustomer()
{
$customer = $this->hasOne(Customer::className(),['id'=>'customer_id'])->asArray();
return $customer;
}
}

Customer.php

<?php
/**
* Created by PhpStorm.
* User: forr
* Date: 15/10/2
* Time: 16:40
*/
namespace app\models;

use yii\db\ActiveRecord;

class Customer extends ActiveRecord{
public function getOrders()
{
$order =  $this->hasMany(Orders::className(),['customer_id'=>'id'])->asArray();
return $order;
}

}