How to submit the custom form data in database in WordPress without plugin?

I have a created a contact form in the function.php and added short code on my page and it’s working. I am getting my form. function st_contact_form(){ ob_start(); ?> <div class=”contact_form-wrapper popup-contact-form”> <form action=”” method=”post” name=”contact_form” id=”contact_form” autocomplete=”off”> <div class=”row”> <div class=”col-xl-6 col-lg-6 col-md-6 col-sm-12 col-xs-12 “> <div class=”form-group”> <input type=”text” name=”name” placeholder=”Name” class=”form-control” required>…

Rendering a Wheel-Form from a controller passing variables vs Rendering a Wheel-Form and calling controller actions via js?

I’ve been working module concept, using Wheel-Form. I can use the Wheel-Form(WF) plugin to save forms in the WF database, so the basic functionality is working. I want to: 1) use Wheel-Form to allow admin users to create/modify WFs. 2) use WF hidden class fields to pass classes for styling. 3) Use a module/controller action…