本文實例講述了Yii不依賴Model的表單生成器用法。分享給大家供大家參考。具體實現方法如下:
默認的Yii的表單生成器只需要這樣就可以了:
復制代碼 代碼如下:$form = new CForm('application.views.site.loginForm', $model);
這裡的application.views.site.loginForm也可以是配置數組。但是如果$model參數不傳的話是會報錯的:Fatal error: Call to a member function isAttributeSafe()
比如我要生成一個組表單,但是我不想依賴於model,根據配置就可以生成一組表單該怎麼辦,
默認生成的表單的label是根據$model->attributes來顯示的,所以我做了2件事:
1.繼承CFormInputElement覆蓋renderLabel方法,將label顯示成自己配置的element的label
2.繼承CForm覆蓋renderElement方法,$element instanceof UCFormInputElement,並覆蓋render方法,將Elements和getButtons循環輸出
直接上代碼:
app/protected/extensions/UCForm.php
復制代碼 代碼如下:<?php
/**
* @author Ryan <[email protected]/yuansir-web.com>
*/
class UCForm extends CForm
{
public function render()
{
$output = $this->renderBegin();
foreach ($this->getElements() as $element)
{
$output .= $element->render();
}
foreach ($this->getButtons() as $button)
{
$output .= $button->render();
}
$output .= $this->renderEnd();
return $output;
}
public function renderElement($element)
{
if (is_string($element))
{
if (($e = $this[$element]) === null && ($e = $this->getButtons()->itemAt($element)) === null)
return $element;
else
$element = $e;
}
if ($element->getVisible())
{
//UCFormInputElement 代替 CFormInputElement
if ($element instanceof UCFormInputElement)
{
if ($element->type === 'hidden')
return "<div style="visibility:hidden">n" . $element->render() . "</div>n";
else
return "<div class="row field_{$element->name}">n" . $element->render() . "</div>n";
}
else if ($element instanceof CFormButtonElement)
return $element->render() . "n";
else
return $element->render();
}
return '';
}
}
再來個簡單的調用示例:
復制代碼 代碼如下:<?php
/**
* @author Ryan <[email protected]/yuansir-web.com>
*/
class PlayerSearchController extends Controller
{
public function actionIndex()
{
$config = array(
'class' => 'ddd',
'action'=>'',
'elements' => array(
'<br><br>',
'username' => array(
'label'=>'用戶名啊',//注意這裡的label
'type' => 'text',
'maxlength' => 32,
'value' => ''
),
'<br><br>',
'password' => array(
'label'=>'昵稱啊',//注意這裡的label
'type' => 'password',
'maxlength' => 32,
'value' => ''
),
),
'buttons' => array(
'login' => array(
'type' => 'submit',
'label' => 'Login',
),
),
);
$model = new CFormModel();
$form = new UCForm($config, $model);
$this->render('index', compact('form'));
}
}
希望本文所述對大家基於Yii框架的PHP程序設計有所幫助。