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Global fields / elements
Need the same field or element on existing forms? The global field method might be helpful in these scenario's. To add a field to all your existing forms by altering the form via WordPress hooks.
Let's assume you already created 50 forms, but you now require a hidden field that holds the current page URL.
At the time of writing Super Forms doesn't yet come with a feature that allows you to add a so called
Global field . However you can easily achieve this with a small function like the one below.
The code will alter the current form elements array and add a new hidden field named
page_url with the default value set to {post_permalink} which retrieves the current page URL.Of course you can add multiple fields by altering the JSON code below. If you are not sure how to format them, you could create a temporary form in the back-end, add your fields and then view the
[CODE] tab on the builder page to copy the JSON value.If you only require this to be fired for specific forms, you can add a condition based on the
$form_id parameter value.Place the below code at the bottom of your child theme functions.php
function f4d_add_hidden_field($value, $form_id, $meta_key, $single){
$meta_needed = '_super_elements';
if(isset($meta_key) && $meta_needed===$meta_key){
// (optional condition: skip forms with the following ID) if($form_id===123 || $form_id===124) return;
// (optional condition: only alter forms with the following ID) if($form_id!==123 && $form_id!==124) return;
remove_filter('get_post_metadata', 'f4d_add_hidden_field', 10);
$value = get_post_meta($form_id, $meta_needed, true);
$json = '{"tag":"hidden","group":"form_elements","data":{"name":"page_url","email":"Hidden:","value":"{post_permalink}"}}';
$value[] = json_decode($json, true);
return array($value);
}
// Return original if the check does not pass
return $value;
}
add_filter('get_post_metadata', 'f4d_add_hidden_field', 10, 4);