gaboesquivel/setting_up_active_admin_on_heroku.md

## setting_up_active_admin_on_heroku.md

      
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              setting_up_active_admin_on_heroku.md
            
          
    ##References

ActiveAdmin Home
Heroku Backups
Heroku Dev/Prod Environments

##Create Rails App
command to make new directory:
mkdir AppName

command to create new rails app:
rails new AppName

command to move to app directory:
cd AppName

##Rev Up Git
command:
git init

command:
git remote add origin [github url]

command:
git add .

command:
git commit -m "initial commit"

command:
git push origin master

##Rev Up Heroku
###Create dev and prod environments
command to create dev:
heroku create --stack cedar --remote dev

command to rename dev:
heroku rename [AppName] --remote dev

command to create dev:
heroku create --stack cedar --remote prod

command to rename dev:
heroku rename [AppName] --remote prod

###Install Heroku add-ons (prod example)
command to add custom domain app:
heroku addons:add custom_domains --remote prod

command to add domain:
heroku domains:add example.com --remote prod

command to add pg backup app:
heroku addons:add pgbackups --remote prod

command to upgrade pg backup app:
heroku addons:upgrade pgbackups:auto-month --remote prod

command for email needs:
heroku addons:add sendgrid:starter --remote prod

command to run migrations:
heroku run rake db:migrate --remote prod

###Set up NewRelic
Command line instruction
heroku addons:add newrelic:standard
Add this line to the Gemfile
gem 'newrelic_rpm'
Run the install
bundle install
Add this script to a new file named config/newrelic.yml with this command
curl https://raw.github.com/gist/2253296/newrelic.yml > config/newrelic.yml
##Set up Gemfile
add to gemfile:
group :test do
  gem 'sqlite3'
end

group :development do
  gem 'sqlite3'
end

group :production do
  gem 'pg'
end

command:
bundle install

##Set up RSpec
add to gemfile:
group :test do
  gem 'rspec-rails'
end

group :development do
  gem 'rspec-rails'
end

command:
bundle install

command:
rails generate rspec:install

##Set Up ActiveAdmin
add to gemfile:
gem 'activeadmin', :git => 'https://github.com/gregbell/active_admin.git'
gem 'sass-rails', '~> 3.2.3'
gem "meta_search",    '>= 1.1.0.pre'

remove from gemfile assets group:
gem 'sass-rails', '~> 3.2.3'

command:
bundle install

command:
rails generate active_admin:install

command:
rake db:migrate

test your setup and sign-in at:
http://[site.com]/admin
un: admin@example.com
pw: password

go to config/environments/development.rb and add this line:
config.action_mailer.default_url_options = { :host => 'localhost/3000' }
go to config/environments/production.rb and add this line:
config.action_mailer.default_url_options = { :host => 'domain.of.site.com' }
create config/initializers/mail.rb and add this script:
ActionMailer::Base.smtp_settings = {
  :address        => 'smtp.sendgrid.net',
  :port           => '587',
  :authentication => :plain,
  :user_name      => ENV['SENDGRID_USERNAME'],
  :password       => ENV['SENDGRID_PASSWORD'],
  :domain         => 'heroku.com'
}
ActionMailer::Base.delivery_method = :smtp

add these lines to config/application.rb:
config.assets.initialize_on_precompile = false
config.assets.precompile += %w[active_admin.css active_admin.js print.css]
config.assets.precompile += %w[active_admin/print.css]

###Register/Setup the AdminUser with ActiveAdmin
command:
rails generate active_admin:resource AdminUser

go to app/admin/admin_users.rb and add this block:
ActiveAdmin.register AdminUser do
  index do
    column :email
    column :current_sign_in_at
    column :last_sign_in_at
    column :sign_in_count
    default_actions
  end
 
  form do |f|
    f.inputs "Admin Details" do
      f.input :email
    end
    f.buttons
  end
end

go to app/models/admin_models.rb and add this line:
after_create { |admin| admin.send_reset_password_instructions }
add this block:
def password_required?
  new_record? ? false : super
end

###Set Up Some Models
command:
rails generate model Post name:string

command:
rake db:migrate

###Register a model with ActiveAdmin
command:
rails generate active_admin:resource [ModelNameSingular]

###Edit ActiveAdmin config


go to config/initializers/active_admin.rb for basic settings


go to app/admin/dashboards.rb for the dashboard


###Adjust for the mass assignment security changes
Make this edit to your respective model files at /app/models/model_name.rb:
class User < ActiveRecord::Base
  attr_accessible :firstname, :lastname, :age

end

##Handle Error Pages
Add to config/routes.rb file:
match '*a', :to => 'errors#routing'

Create app/controllers/errors_controller.rb and add this script:
class ErrorsController < ApplicationController
def routing
  render :file => "#{Rails.root}/public/404.html", :status => 404, :layout => false
  end
end

Set up a monitoring page

###Create a boring view at app/views/static/monitor.html.erb
Monitoring Page
###Create a boring template at app/views/layouts/monitor.html.erb


<title>IndyCar Laps</title>
<%= stylesheet_link_tag    "application", :media => "all" %>
<%= javascript_include_tag "application" %>
<%= csrf_meta_tags %>


<%= yield %>


###Set up your controller file at app/controllers/static_controller.rb
# GET /monitor
def monitor
render :layout => 'monitor'
end
###Set up the route in your config/routes.rb file
match 'monitor' => 'static#monitor'
##Push to Prod or Dev
command to add files to git:
git add .
command to commit files to git:
git commit -m "installing ActiveAdmin"
command to push to Github:
git push origin master
command to push to Dev:
git push dev master
command to push to Prod:
git push prod master
##Errors
###Locked out of the default admin user
Run the console:
heroku run console OR ruby console

Run this line in the rails or heroku console:
AdminUser.create!(:email => 'admin@example.com', :password => 'password', :password_confirmation => 'password')