[TYPO3-mvc] FLUID condition does not work with true/false

[Michael Knoll]

Hallo list,

I have a problem concerning boolean values for conditions. Here is my 
fluid code:

<f:if condition="{filter.validate} == false">
     <div style="color: red">Validation Error: {filter.errorMessage}</div>
</f:if>


and here is my PHP code:

	public function validate() {
		return true;
	}


This renders the <div> tag that should only be shown, if the method 
returns false...

Now, if I use 1 / 0 everything works perfect:

<f:if condition="{filter.validate} == 0">
     <div style="color: red">Validation Error: {filter.errorMessage}</div>
</f:if>


	public function validate() {
		return 1;
	}


I tried TRUE / FALSE --> same problem... What am I doing wrong?


Thanks for your help!

Michael