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Yii表单模型使用及以数组形式提交表单数据

WBOY
Release: 2016-06-13 09:37:09
Original
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按Yii文档里的描述,Yii在处理表单的一般过程是:

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:

<form action='' method='post' name='form_test'>
    <input type='text' name='arr[]' value='1'>
    <input type='text' name='arr[]' value='2'>
    <input type='text' name='arr[]' value='3'>
</form>
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提交后可以直接使用 $_POST['arr'] 来获取提交的数据,$_POST['arr'] 为:

<span Array<br /></span><span (
    [</span>0] =><span  a
    [</span>1] =><span  b
    [</span>2] =><span  c
)</span>
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同理,如果使用以下form提交:

<form action='' method='post' name='form_test'>
    <input type='text' name='arr[3]' value='a'>
    <input type='text' name='arr[6]' value='b'>
    <input type='text' name='arr[8]' value='c'>
</form>
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$_POST['arr'] 为:

<span Array</span><span 
(
    [</span>3] =><span  a
    [</span>6] =><span  b
    [</span>8] =><span  c
)</span>
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当然也能提交二维数组:

<form action='http://127.0.0.1/zhaobolu/test.php' method='post' name='form_test'>
    <input type='text' name='arr[][name1]' value='a'>
    <input type='text' name='arr[][name2]' value='b'>
    <input type='text' name='arr[][name3]' value='c'>
</form>
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$_POST['arr'] 为:

<span Array</span><span 
(
    [</span>0] => <span Array</span><span 
        (
            [name1] </span>=><span  a
        )

    [</span>1] => <span Array</span><span 
        (
            [name2] </span>=><span  b
        )

    [</span>2] => <span Array</span><span 
        (
            [name3] </span>=><span  c
        )
)</span>
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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:

<form action='http://127.0.0.1/zhaobolu/test.php' method='post' name='form_test'>
    <input type='text' name='arr[a][name1]' value='a1'>
    <input type='text' name='arr[a][value1]' value='a2'>
    <input type='text' name='arr[b][name2]' value='b1'>
    <input type='text' name='arr[b][value2]' value='b2'>
</form>
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$_POST['arr'] 为:

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

<?<span php
</span><span class</span> LandingForm <span extends</span><span  CFormModel
{
    </span><span public</span> <span $landing_title</span><span ;
    </span><span public</span> <span $landing_content</span><span ;
    </span><span public</span> <span $landing_position</span><span ;

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

<span $model = new LandingForm;<br />$model</span>->attributes = <span $_POST</span>['form'<span ];
</span><span if</span>(<span $model</span>-><span validate()){
    </span><span $info</span> = <span $model</span>-><span attributes;
    </span>...<span  
}<br />...</span>
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最后是前端提交表单部分的代码,用的jquery:

<span var</span> info = <span new</span><span  Object();
info </span>= { 'form[landing_title]'<span : landing_title,
        </span>'form[landing_content]'<span : landing_content,
        </span>'form[landing_position]'<span : landing_position,
        };

</span><span var</span> url = "..."<span ;

$.post(url, info, </span><span function</span><span (rst){
    ... 
});</span>
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