[TYPO3-english] cHash does not work with forms

[Vahan Amirbekyan]

Xavier,
I used your suggestion as it was the easiest to try out.
thank you!

Xavier Perseguers wrote:
> Hi,
> 
>>> I think there should be a solution operantly it is not that obvious.
>>> I have a form with a dropdown of country codes that reloads the same
>>> page with &country= URL get parameter.
>>> I need these pages to be cached.
>>> How to get the page URLs with cHash?
>>
>> Fake a cHash using one of early TSFE hooks. This is a dangerous way 
>> but I do not think you have any other option.
> 
> I do not know whether this is an option for you but I had the very same 
> problem with a combobox I populated with info in one of my extensions.
> 
> I had a dropdown with years and upon selection I reloaded the page with 
> a year GET parameter. Here is my code:
> 
> -------------------------
> 
> $options = array();
> foreach ($years as $year) {
>     if ($year == $selectedYear) {
>         $format = '<option value="%s" selected="selected">%s-%s</option>';
>     } else {
>         $format = '<option value="%s">%s-%s</option>';
>     }
> 
>     $url = $this->cObj->typoLink_URL(
>         array(
>             'parameter'        => $GLOBALS['TSFE']->id,
>             'useCacheHash'     => true,
>             'additionalParams' => '&' . $this->prefixId . '[year]=' . 
> $year,
>         )
>     );
>     $options[] = sprintf($format, $url, $year, $year + 1);
> }
> 
> $yearSelector = '
>     <label for="' . $this->prefixId . '[year]">' . $this->sL('year') . 
> '</label>
>     <select name="' . $this->prefixId . '[year]" id="' . $this->prefixId 
> . '[year]"  onchange="location=this.value;">
> ' . join("\n", $options) . '
>     </select>
> ';
> 
> -------------------------
> 
> I hope this will help you not having to fake the cHash and still use 
> cache...
>