[TYPO3-mvc] FLUID: if condition with string

[Peter Bücker]

Hi,

On 02/24/2011 08:54 AM, Peter Niederlag wrote:
> Hello,
> 
> Am 24.02.2011 02:43, schrieb Stefano Cecere:
>> i know that a
>>
>> <f:if condition="{detail} == 'mystring'">
>>
>> didn't work, because of parsing problems...
>> but is it gonna work in the future?
> 
> I someone has knowledge and time to implement: yes. ;)
> 
> It is a really badly missign feature that is driving me nuts sometimes. :-<
> 
> Franz Koch once posted a switch/case ViewHelper that I am using when
> needing to compare strings...

Instead of a switch/case view helper, you can also use a plain compare
view helper. I use this in my code (works for all kinds of comparisons
which require type-equality):

<?php

class Tx_MyExt_ViewHelpers_CompareViewHelper extends
Tx_Fluid_Core_ViewHelper_AbstractViewHelper {

    /**
     * Returns true if $a and $b are type-equal, false otherwise.
     *
     * @param mixed $a
     * @param mixed $b
     * @return boolean
     */
    public function render($a, $b) {
        return $a === $b;
    }
}

?>

Use it in your view like this:

<f:if condition="{myext:compare(a: 'foo', b: 'bar')}">
  <f:then>...</f:then>
  <f:else>...</f:else>
</f:if>

Instead of constant strings, you can also use variables of course:

<f:if condition="{myext:compare(a: model.foo, b: model.bar)}">

Regards,
Peter