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Unsetting fields & changing placeholder/required before rendering form

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  • October 17, 2019 at 3:53 PM #16565
    pzapza
    Participant

    I'm having w/this: I want to dynamically change form field attributes on a Frontend Submission form. I mean fields, not the shortcode attrs like "post_title" etc. I'm making metaboxes with MB builder.

    Using action rwmb_frontend_before_form I am able to set field default values with rwmb_{fieldid}_field_meta filter.

    BUT I also want to change "required" & "placeholder" , and conditionally remove some fields.

    I tried using the rwmb_normalize_{fieldid}_field filter but it doesn't work. Maybe I'm thinking of this wrong.

    Can you please suggest how I can conditionally remove fields on a FES form, and change field placeholder/required attributes?

    Thanks!

    October 18, 2019 at 2:35 PM #16585
    Anh TranAnh Tran
    Keymaster

    Hi @pza, I'm thinking about using some code like this:

    add_filter( 'rwmb_meta_boxes', function( $meta_boxes ) {
    $fields = [];

    if ( ! is_admin() ) {
        $fields[] = [...]; // A front-end-only field.
    }

    $text_field = [
        'id' => 't',
        'name' => 'Text',
    ];
    if ( ! is_admin() ) {
        $text_field['required'] = true; // Change field settings only on the front end.
    }

    $fields[] = $text_field;

    $meta_boxes[] = [
        'id' => 'custom-mb',
        'title' => 'Custom Meta Box',
        'fields' => $fields,
    ];
} );
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