If the user object exists for the given email, then the email is not available so the response is false and the validator will ask the user to change the email. Map.check_email “users/check_email”, :controller => “users”, :action => “check_email” We have created a simple HTML form which have the fields like Name, Email, Mobile No, Password and Confirm Password. # in users_controller.rbĭef = User.find_by_email(params) Now in this tutorial, we make you to learn how to create the registration form with jquery validation. Now let’s write the action and view and set it up in the routes.rb file. The action must use the email to determine if the email is already in use, and return true or false (no quotes). This means the application is expecting a response in javascript format (actually the docs mention JSON) from the server. The HTTP Accept parameter of the request is set to 'text/javascript'. The remote function will send a GET request passing the email as a parameter to our action. We reference the fields through their name attribute. Once the DOM is loaded we will add validation requirements to each fields in the form using the validate() function. The jQuery validation plugin is really easy to set up. = require jquery.validate Writing the Validation Load up the plugins in rails_app/app/assets/javascripts/applications.js:

Save the two plugins in rails_app/app/assets/javascripts/

The password and password_validation field match.

The password is at least 6 characters long.

Here are some of the things we want to check on the client side: Relying on server-side validation done through the model is fine, but we can improve the usability of the application through client side validation. When this form is submitted the controller creates a new user model object, validates it using code in user.rb and saves the entry in the database. Notice that rails automatically added the id “new_user” for the form and provided ids for all elements of the form. We will validate a typical user registration form using the jQuery Validation plugin. The post assumes you have some knowledge of Ruby on Rails views and jQuery selectors.

If( $('#username').val() = '' || $('#pass').val() = '' ) $('#ack').html('Username/Password are mandatory fields - Please Enter.') Įlse $.post( $('#myForm').attr('action'), $('#myForm :input').In this post you will see how to do client side validation with jQuery in a Ruby on Rails application. $('#ack').html('Username/Password are mandatory fields - Please Enter.')

Jquery registration form validation