Yii _php instances of form builder usages that do not rely on model

This example describes the form builder usage that YII does not rely on model. Share to everyone for your reference. The implementation method is as follows:

The default Yii form builder only needs to do this:
Copy the code as follows: $form = new CForm (' Application.views.site.loginForm ', $model);
The application.views.site.loginForm here can also be a configuration array. However, if the $model parameter is not transmitted, it will be an error: Fatal Error:call to a member function Isattributesafe ()
For example, I'm going to generate a group form, but I don't want to rely on the model, so I can build a set of forms based on the configuration.

The label for the form that is generated by default is displayed according to $model->attributes, so I did 2 things:

1. Inherit the Cforminputelement overlay Renderlabel method, label the label as the element that you configured

2. Inherit the Cform overlay Renderelement method, $element instanceof ucforminputelement, and overwrite the Render method, elements and getbuttons loop output
Directly on the code:
app/protected/extensions/ucform.php
Copy CodeThe code is as follows: <?php
/**
* @author Ryan
*/
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 instead of Cforminputelement
if ($element instanceof ucforminputelement)
{
if ($element->type = = = ' hidden ')
Return "n". $element->render (). "N";
Else
Return "name}" >n ". $element->render (). "N";
}
else if ($element instanceof cformbuttonelement)
return $element->render (). "N";
Else
return $element->render ();
}
Return ';
}
}
Here's a simple invocation example:
Copy CodeThe code is as follows: <?php
/**
* @author Ryan
*/
Class Playersearchcontroller extends Controller
{
Public Function Actionindex ()
{
$config = Array (
' Class ' = ' DDD ',
' Action ' = ',
' Elements ' = array (
'

',
' Username ' = Array (
' Label ' = ' User name AH ',//note the label here
' Type ' = ' text ',
' MaxLength ' = 32,
' Value ' = '
),
'

',
' Password ' = array (
' Label ' = ' nickname ah ',//note the label here
' 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 '));
}
}

It is hoped that this article is helpful to the PHP program design based on YII framework.

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