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+--- Thread: Codeigniter form validation callbacks (/thread-26592.html)
Codeigniter form validation callbacks - El Forum - 01-18-2010
[eluser]Monarobase[/eluser]
Hello, using the form validation helper I have run into a limitation and would like to know if there is a clean way to do this or not.
In my form I've got an element called "name" which is a drop down list with "Yes", "No", "Other" and a text input called name_other and I want to specify that if "name_other" is selected in the drop down list then the name_other text field is required and otherwise is not.
I could do this using a callback but 15 fields like this would mean 15 callbacks unless I could retreive the field name in the callback in which case I could check "name_other" with a function like this :
Code:
function _check_other($val,$input_name)
{
if($val == 'other') {
if($_POST[$input_name.'_other'] == '') {
}
}
}Can I do something like this ? And if not would in not be an interesting feature to be able to have an extra $input_name value passed onto the callback function ?
Codeigniter form validation callbacks - El Forum - 01-18-2010
[eluser]flaky[/eluser]
For the moment you can't do that.
Codeigniter form validation callbacks - El Forum - 01-18-2010
[eluser]Monarobase[/eluser]
Ok thankyou,
I have noticed though that "%s" when passed retrieves the human name, it's a shame that you can't also retrieve the variable name using something similar...
Codeigniter form validation callbacks - El Forum - 01-18-2010
[eluser]Dyllon[/eluser]
You could easily extend the form_validation class to do this or alternatively you can add the field name as a parameter to the callback
Code:
$rules = array(
'field' => 'name',
'label' => 'Name',
'rules' => 'callback__check_other[name]'
)
function _check_other($str, $params) {
//do stuff
}Codeigniter form validation callbacks - El Forum - 01-18-2010
[eluser]Monarobase[/eluser]
Thankyou, that's just what I needed !