April 24th

Covering:

Stripe
Deploying to Heroku
References

Stripe

Going to use PostgreSQL for the database this time
Download Postgres.app for GUI interface
gem install pg in terminal will install postgres
((gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/latest/bin/pg_config in terminal will install pg gem if above doesn’t work))
rails new sneakers_pg_stripe --database=postgresql
Add Devise to Gemfile and Rspec to :development, :test group in Gemfile
Bundle, then rails g rspec:install && rails g devise:install
Change development database name to sneakers_development and test database name to sneakers_test in database.yml (config folder)
Change production database name to sneakers and change username to your name
rails db:create – postgres is different to sqlite and actually requires you to create the database first
rails g scaffold Sneaker name description:text price:decimal
rails db:migrate
Run rails s to test database connection
When referencing other tables, make sure the other table is already created before referencing otherwise postgres will error out
Fill seed file with shoes with name, description, price then Sneaker.create!(sneakers) { |s| p s.name }
rails db:seed
rails g devise User
gem 'stripe' in Gemfile and gem 'dotenv-rails', '~> 2.4' to :development, :test group in Gemfile
Bundle
Create .env.development file and add .env and .env* to .gitignore file
Add to .env.development file: (include your own keys from Stripe website)
```
PUBLISHABLE_KEY=key
SECRET_KEY=key
```
rails g controller Charges
Follow Stripe guide to set up form, views and controller
Add charges_controller.rb details to sneaker_controller.rb
before_action :set_sneaker, only: [:show, :edit, :update, :destroy, :charge] at top of sneaker_controller.rb to allow charge method access to set_sneaker

Add to routes:

resources :sneakers do
  member do
    post 'charge'
  end
end 

rails g migration AddStripeIDToUser stripe_id
Migrate
before_action :authenticate_user!, only: [:charge] in top of sneakers_controller.rb
Put the form into a partial and render it inside show.html.erb
Add <%= stylesheet_link_tag "https://checkout.stripe.com/v3/checkout/button.css"%> in application layout

Add inside show.html.erb:

<% if user_signed_in? %>
<%= render 'partials/charge_form', sneaker: @sneaker, user: current_user %>
<% else %>
<%= link_to new_user_session_path, class: 'stripe-button-el' do%>
<span style="display: block; min-height: 30px;">Pay with Card</span>
<% end %>
<% end %>

Look in to using Devise to redirect back after signing in
Add data-amount="<%= user.email %>" in the charge form partial

In sneakers_controller.rb add:

def charge 
    
  if current_user.stripe_id.nil?
  customer = Stripe::Customer.create(
    email: params[:stripeEmail],
    source: params[:stripeToken]
  )
  current_user.stripe_id = customer.id
  current_user.save!
    
  end

    charge = Stripe::Charge.create(
      customer: current_user.stripe_id,
      amount: @sneaker.price,
      description: @sneaker.description,
      currency: 'aud'
    )

    current_user.charges << Charge.new(charge_id: charge.id)

    flash[:notice] = "Payment Made!"
    redirect_back fallback_location sneakers_path
      

  rescue Stripe::CardError => e
    flash[:error] = e.message
    redirect_to new_charge_path
  end   

Deploying to Heroku

Navigate to project folder
heroku login with your Heroku account details
Ensure gem pg is in your Gemfile (run bundle install if you have to add it)
git init
git add .
git commit -m "First commit"
git status to ensure all files are up to date
heroku create will create a remote app on Heroku
git push heroku master to push project to Heroku
Check for any errors!
heroku run rails db:migrate to create database on Heroku
heroku run will allow you to run terminal commands on the Heroku app
heroku run rails db:seed if you need to seed the database

coder-academy-notes

A collection of notes from my time at Coder Academy

April 24th

Covering:

Stripe

Deploying to Heroku

References