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HomeBackend DevelopmentPHP Tutorialyii框架表单模型使用及以数组形式提交表单数据示例_PHP

按Yii文档里的描述,Yii在处理表单的一般过程是:

创建表单对应的模型类,设置字段验证规则
创建表单提交对应的action,处理提交的内容
在视图中创建表单form
在刚刚的一个小项目里,想使用ajax提交表单信息并验证保存,又不想用隐藏iframe来做无刷新提交,并且action中能够用到模型类的校验方法,就想到使用表单数组提交的方式,举个例子:

form代码:
复制代码 代码如下:


   
   
   


提交后可以直接使用 $_POST['arr'] 来获取提交的数据,$_POST['arr'] 为:
复制代码 代码如下:
Array
(
    [0] => a
    [1] => b
    [2] => c
)

同理,如果使用以下form提交:
复制代码 代码如下:

   
   
   

$_POST['arr'] 为:

Array
(
    [3] => a
    [6] => b
    [8] => c
)

当然也能提交二维数组:
复制代码 代码如下:


   
   
   

$_POST['arr'] 为:


Array
(
    [0] => Array
        (
            [name1] => a
        )

    [1] => Array
        (
            [name2] => b
        )

    [2] => Array
        (
            [name3] => c
        )
)

这里有一个问题,如果不设置第一个子数组的key,在生成数组时会将每个值顺序在arr中添加,如果想将信息保存在一个array中,添加一个key值即可,如下:
复制代码 代码如下:


   
   
   
   

$_POST['arr'] 为:

Array
(
    [a] => Array
        (
            [name1] => a1
            [value1] => a2
        )
    [b] => Array
        (
            [name2] => b1
            [value2] => b2
        )
)

 

下面贴一下用ajax提交表单并且用yii表单模型验证的示例,首先是模型类部分,只有最简单的校验方法:

复制代码 代码如下:
class LandingForm extends CFormModel
{
    public $landing_title;
    public $landing_content;
    public $landing_position;

    public function rules()
    {
        return array(
            array('landing_title, landing_content', 'required'),
            array('landing_position', 'default', 'value'=>''),
        );
    }
}

发现个比较有意思的,就是模型类在设置参数校验的方法时,需要对每一个public参数都设置规则,如果有未设置规则的参数,在用$_POST中的表单值为模型赋值后,未设置规则的参数值将为空

action中获取表单提交的参数并且校验:

复制代码 代码如下:
$model = new LandingForm;
$model->attributes = $_POST['form'];
if($model->validate()){
    $info = $model->attributes;
    ...
}

最后是前端提交表单部分的代码,用的jquery:

复制代码 代码如下:
var info = new Object();
info = { 'form[landing_title]': landing_title,
        'form[landing_content]': landing_content,
        'form[landing_position]': landing_position,
        };

var url = "...";

$.post(url, info, function(rst){
    ...
});

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