Gii可以帮助我们生成代码,减少编写重复代码。
访问:http://localhost/Yii/basic/web/index.php?r=gii可以使用gii功能。
Model
This generator generates an ActiveRecord class for the specified database table.
Gii会根据数据库表生成对应的代码(举例):
<?php
namespace app\models;
use Yii;
/**
* This is the model class for table "test2".
*
* @property integer $id
* @property string $title
*/
class TestGii extends \yii\db\ActiveRecord
{
/**
* @inheritdoc
*/
public static function tableName()
{
return 'test2';
}
/**
* @inheritdoc
*/
public function rules()
{
return [
[['title'], 'string', 'max' => 20],
];
}
/**
* @inheritdoc
*/
public function attributeLabels()
{
return [
'id' => 'ID',
'title' => 'Title', //如果生成时勾选`Generate Labels from DB Comments`,默认以字段名为key ,以字段的注释为name。 没有注释则大写
];
}
}
可以对数据进行校验:
public function actionTest(){
$test = new TestGii();
$test-> title = 44;
//'title' => 'Title',
$test->save();
//获取错误(以title过长举例)
//Array ( [title] => Array ( [0] => Title should contain at most 20 characters. ) )
//获取错误(以title = 数字)
//Array ( [title] => Array ( [0] => Title must be a string. ) )
print_r($test->getErrors()); //
}
GRUD
Controller
MyTestController为例,访问:http://localhost/Yii/basic/web/index.php?r=my-test可以看到效果
(名字如何解析的，看这里https://github.com/yiisoft/yii2/blob/master/framework/base/Module.php#L560)
Module
Extension