Rails: create database record on button click

Question

I have an app where users can send a unique link (a postcard to invite other people) to others via email, sms and whatsapp through clicking on a button.

The app features a button in the cards show method that says "Send card to a friend via email" and when people click on it, their email app opens and they can send the link:

<a href="mailto:?subject=Postcard for you!&body=You received a nice postcard! Check it out here: <%= u @sending_url %>">
    <button class="btn btn-large btn-default">Send card to a friend via email</button> 
</a>

The link/URL @sending_url is created by a helper method and is composed by the URL and two parameters: the inviter_id (which is the current user's id) and a token (@token) generated through SecureRandom.uuid. A link which my app generates looks like this:

https://chaos-jadz.c9users.io/cards/3?inviter_id=1&token=b39f0488-de54-431e-a261-4da2feae6012

What I want to do now is: once a user clicks on this button the app should not only open the email app but also store the token in the database. Therefore I have:

token.rb

class Token < ActiveRecord::Base
end

schema.rb

create_table "tokens", force: :cascade do |t|
    t.string   "token"
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
  end

My question now is: How can I implement a button in my show.html.erb of the card that once clicked saves the token (generated in my card show method) in the database and at the same time opens the users email app?

Sebastián Palma · Accepted Answer · 2017-06-09 19:07:42Z

1

How about creating a link to your server with inviter_id (e.g -> /users/1/invites), then in invites_controller you will redirect user to an email app link with a token which you store in database.

edited Jun 9, 2017 at 19:07

Sebastián Palma

33.6k6 gold badges45 silver badges65 bronze badges

answered Jun 9, 2017 at 19:01

Roman Kovtunenko

4472 silver badges12 bronze badges

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