Adding custom class to fields?

[anointed]

I needed to have field specific classes in order to target them via jQuery. Now I know I can add a class manually during creation of the field but I'm lazy.

One idea was to simply add this line to the meta-box.php class line 259

$class = $this->add_cssclass( $field[ 'id' ], $class );


Obviously I don't want to hack the core file, and I did see a filter hook in there, but I just could not figure out how to write a filter to add the field id as a class to all the fields.

If the filter can be used for this, can someone copy a working snippet in here for me to use?
*I'm not even sure if the filter I was trying would work, hence the question.

[rilwis]

You can use rwmb_begin_html to filter the begin HTML of all fields. Something like this:

add_filter( 'rwmb_begin_html', 'add_my_class' );

function add_my_class( $begin, $field, $meta )
{
     // Copy the content of function begin_html() and change it as you like
}

[anointed]

I'm sorry to say, but I am stuck:

Here is the snippet from what you are suggesting:

add_filter( 'rwmb_begin_html', 'add_my_class' );

function add_my_class( $begin, $field, $meta  ) {

            $class = 'rwmb-label';

            if ( ! empty( $field['class'] ) )
                $class = self::add_cssclass( $field['class'], $class );

            if ( empty( $field['name'] ) )
                return '
';

            $html = <<
    {$field['name']}


HTML;

            return $html;
}

When I do that I get this error:
Warning: Missing argument 2 for add_my_class()

I am simply trying to change 'div class="rwmb-field"' to div class="rwmb-field-id" (id is the id of the field being shown)

Sorry for the newb question, but I spent the entire evening,morning trying every combination that I could think of, and nothing is working.

Can you show me where I am going wrong?

[anointed]

sorry about the formatting above, can't figure out why git is not closing off my code snippet the right way.....

[rilwis]

Please try: add_filter( 'rwmb_begin_html', 'add_my_class', 10, 2 );

[anointed]

Btw, it needs to be 10, 3 not 10,2...

Here's what I ended up with. It doesn't do what I want "remove the rwmb-field" and replace it with "rwmb-field field-id", as I can't seem to figure out how to modify that wrapper div. However it does work for me to get by for now.

function add_my_class( $begin, $field, $meta ) {
            $begin = <<
HTML;
            $end = '';

            $class = 'rwmb-label';

            if ( ! empty( $field['class'] ) )
                $class = self::add_cssclass( $field['class'], $class );

            if ( empty( $field['name'] ) )
                return '
';

            $html = <<
    {$field['name']}


HTML;

            return $begin .$html .$end;
}

Probably a lousy way of doing it, but I'm still learning. Thnx for the pointer

[anointed]

Damn it's hard to get github to take my code without screwing it up... arghh.

I am wrapping my code with (pre)(code) and ending it with (/code)(/pre) obviously changing ( for a <
Is that the wrong way?

https://gist.github.com/3140691 works better

[rilwis]

Hi, github uses Markdown syntax to parse comments, you can click the link to see the details.

Looks like your code is good, so I'll close this ticket.