Pre Processing Of Data For Admin Form

[vladimircape]

I have field_option like

blablab' => array(
'title'      => $this->l('Text for META area'),
'hint'       => $this->l('Set the text for META tag in main page.'),
'type'       => 'textarea'
)

these value stored in configuration table

because it's html data, system didn't store it correctly, and not displayed.

 

I try to save <meta>tag but can't i raw and made htmlspecialchars in preSave

 

How to prepare value before display?

[NemoPS]

you can add a 'callback' parameter to that array. You can pass in the firs argument as the current value, and the second as current row of elements.

In the callback function, you can try printing out the field and see how it's displayed. If you need some formatting, you can try Tools::nl2br or stripslashes