You haven't understood the ZF naming conventions correctly.
Since your code is in My/Filter/Slash2Comma.php, the class name should be
My_Filter_Slash2Comma, not Zend_Filter_Slash2Comma.
Also, no reason for you to have an Interface.php in My/Filter/ - this file
already exists in Zend/Filter/Interface.php. Don't touch this file!
The line
$mysearch->addPrefixPath('My_Filter', 'My/Filter/', 'filter');
tells the form element to look for filters in the My/Filter directory
prefixed My_Filter. (You would typically want to set this for the whole
form - $this->addPrefixPath() in your example - so you don't have to set it
for each element).
Yours,
Mark
Customize wrote:
>
> Related to my previous post on slash(/) on query string, I wanted to
> implement my custom filter.
>
> OK I think understand some concept of custom filter. Now I have custom
> filter implemented but it is not working.
>
> I have
> /application
> /library
> /My
> /Filter
> Interface.php
> Slash2Comma.php
>
> Basically my idea is to replace the slash(/) with comma (,) and this is
> how it looks like
>
> Interface.php
> ++++++++++++++
> <?php
>
> interface Zend_Filter_Interface
> {
> /**
> * Returns the result of filtering $value
> *
> * @param mixed $value
> * @throws Zend_Filter_Exception If filtering $value is impossible
> * @return mixed
> */
> public function filter($value);
> }
> +++++++++++++++
>
> Slash2Comma.php
> +++++++++++++++++
> <?php
>
> require_once 'Zend/Filter/Interface.php';
>
> class Zend_Filter_Slash2Comma implements Zend_Filter_Interface
> {
> /**
> * Defined by Zend_Filter_Interface
> *
> * Returns the string $value, replacing all forward slashes to comma
> *
> * @param string $value
> * @return string
> */
> public function filter($value)
> {
> $temparr = explode("/", $value);
> $replacedvalue = implode (",", $temparr);
> return (string) $replacedvalue;
> //also tried
> //return str_replace("/",",", (string) $value);
> //plus this one too
> //return preg_replace("/\/",",", (string) $value);
> }
> }
>
> ++++++++++++++++
>
>
> In My Form element, I have added my custom filter
>
> The code fragment in my form looks like this
> ++++++++++++
> public function init()
> {
> $mysearch = New Zend_Form_Element_Text('srchstr');
> $mysearch->setLabel('Search For:');
> $mysearch->setAttrib('size', '30');
> $mysearch->addPrefixPath('My_Filter', 'My/Filter/', 'filter');
> $mysearch->addFilter('Slash2Comma');
> $mysearch->addFilter('StringTrim');
> ...
> ...
> ...
> }
>
> +++++++++++++++
>
> Now when I var_dump my query string, it is still the same. What's
> wrong with my Slash2Comma code? Any suggestion?
>
> Besides that if i execute query, i am getting SQL error
>
> Sorry I still don't fully understand how to implement this.
>
> Some correction is greatly appreciated.
>
>
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