Kirill Ilin gwynolanga

http://www.rubydoc.info/github/rest-client/rest-client/RestClient/Exception

Database migration best practices for Rails

Never ever change data on schema changes! [1]

Use rake tasks to change the data! [1]

This decouples a deployment from completed migrations. Give us control of the data manipulation proccess by encapsulatin it in on place. need to remember to:

Run it in one of the ways bellow: a. Add this rake task the deployment script or;

Validating HTTP parameters

Let's say you need to handle the following action:

class UsersController < ApplicationController
  def update
    user = User.find(id)
    result = update_user(user, attrs)

How to make a contact form in rails 6

This is a quick walk through on how to:

make a contact form in rails 6,
test it locally, and
move it into production using heroku and the MailGun addon

This uses the free heroku and mailgun plans. If you get stuck on any part, check the full code here.

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