This thread is resolved. Here is a description of the problem and solution.
Problem: I would like to require the User to select at least one checkbox from a checkboxes group in a CRED form.
Solution: There's no way to do this from wp-admin, but you can apply backend validation using the cred_form_validate hook that will require at least one checkbox.
add_filter('cred_form_validate','cred_form_validation', 2, 10);
function cred_form_validation( $field_data, $form_data ) {
// field data are field values and errors
list($fields,$errors)=$field_data;
$forms = array( 1234 );
// check to see if this is the correct form
if ( in_array( $form_data['id'], $forms ) ) {
if ( !isset($fields['wpcf-checkboxes']['value'][0]))
$errors['checkboxes'] = 'At least one checkbox is required';
}
return array( $fields, $errors );
}
Change 1234 to match the CRED form ID, and change 'checkboxes' in both places to match the field slug.
Relevant Documentation:
https://toolset.com/documentation/programmer-reference/cred-api/#cred_form_validate
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This topic contains 3 replies, has 2 voices.
Last updated by 6 years, 7 months ago.
Assisted by: Christian Cox.
