On the root directory, create a Gemfile to load your dependencies
source 'https://rubygems.org'
gem 'sinatra'
gem 'activerecord'
gem 'sinatra-activerecord'
gem 'pg'
gem 'rake'
Create config.ru. This configuration file is needed for runtime and loads the dependencies needed (especially activerecord needed for connecting to the database.
require 'sinatra'
require 'sinatra/activerecord'
require './server'
run Sinatra::Application
Create Rakefile to load dependencies for creating and running database migrations
require 'sinatra/activerecord'
require 'sinatra/activerecord/rake'
Create database.yml in a folder called config
development:
adapter: postgresql
encoding: unicode
database: test_boiler_db_3
pool: 2
Create server.rb on the root directory. Require each Model class as necessary
require './models/record'
get '/' do
erb :index
end
get '/record' do
@records = Record.all
erb :record
end
get '/addrecord' do
Record.create(name: params[:name])
redirect '/record'
end
Create index.erb inside a views folder
<% @records %>
<% @records.each do |record| %>
Hello <%= record.name %>
<br>
<% end %>
In terminal
rake db:create_migration NAME=create_records
Modify the migration file xxx_yyy_zzz_create_record.rb
class CreateRecords < ActiveRecord::Migration[6.0]
def change
create_table :records do |t|
t.text :name
t.timestamps
end
end
end
In terminal
rake db:create
rake db:migrate
Create record.rb in a folder models
class Record < ActiveRecord::Base
end
In terminal
bundle install
rackup
In terminal
git init
git add -A
git commit -m "Initial Commit"
Log into www.github.com and create a new repository Copy the https:// repo location to clipboard and open terminal
git remote add origin https://github.com/delads/new_repo.git
git remote
Open terminal
heroku create
git push heroku master
heroku rake db:migrate
Boom!