Hi everyone,

I am porting my CakePHP 2.0 helpers to CakePHP 3.0 and I am facing some 
troubles with my custom FormHelper. The helpers are made to be used with 
bootstrap, the two form helpers can be found here:

   - CakePHP 2 - 
   
https://github.com/Holt59/cakephp-bootstrap3-helpers/blob/master/View/Helper/BootstrapFormHelper.php
   - CakePHP 3 - 
   
https://github.com/Holt59/cakephp3-bootstrap3-helpers/blob/master/View/Helper/BootstrapFormHelper.php

In the BootstrapFormHelper::input method, I have a 'prepend' and 'append' 
options which are used to create bootstrap input groups 
<http://getbootstrap.com/components/#input-groups>. With the 2.0 version, I 
used the 'before' and 'after' options to create such groups but these 
options are not available anymore with CakePHP 3.0 so what I'm doing is a 
temporary template change:

$oldTemplate = $this->templates('input') ;
if ($options['prepend']) {
    $this->templates([
        'input' => /* ... */
    ]) ;
}
$res = parent::input(/* ... */) ;
$this->templates([
    'input' => $oldTemplate
]) ;
return $res ;

Is there a better way to do such thing with CakePHP 3.0?

Thanks,

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