lopezjurip/README.md

## README.md

      
    Raw
  

              README.md
            
          
    Requisites:

Create a free account at https://www.mailgun.com/
Save your API Key as a environment variables: export MAILGUN_API_KEY=key-1111111111111111111111111

As example, I will use a model named Request.

  
## application_mailer.rb
# app/mailers/application_mailer.rb

# See: http://blog.mailgun.com/the-official-mailgun-ruby-sdk-is-here/
require 'mailgun'

class ApplicationMailer < ActionMailer::Base
  layout 'mailer'

  def host
    'mydomain.com'
  end

  def from
    'no-reply@mydomain.com'
  end

  def client
    # Lazy initialization
    @client ||= Mailgun::Client.new(ENV['MAILGUN_API_KEY'])
  end

  def batch_builder()
    obj = Mailgun::BatchMessage.new(client, host)
    obj.set_from_address(from)
    obj
  end
end


## mailer.html.erb
<!-- app/views/layouts/mailer.html.erb -->

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <style>
      /* Email styles need to be inline */
    </style>
  </head>

  <body>
    <%= yield %>
  </body>
</html>

## mailer.text.erb
app/views/layouts/mailer.text.erb
---

<%= yield %>

## new_request.html.erb
<!-- app/views/request_mailer/new_request.html.erb -->

<div>
  <p>
    Id: <%= request.id %>
  </p>
</div>

## new_request.text.erb
app/views/request_mailer/new_request.text.erb
---

Id: <%= request.id %>

## request_mailer.rb
# app/mailers/request_mailer.rb

class RequestMailer < ApplicationMailer
  def new_request(request, users = [])
    builder = batch_builder() # From super-class
    builder.set_subject("Email title for: #{request.id}")

    # Render html version
    html = render_to_string(
      template: 'request_mailer/new_request',
      formats: [:html],
      locals: { request: request }
    )

    # Render plain text version
    txt = render_to_string(
      template: 'request_mailer/new_request',
      formats: [:text],
      # layout: false,
      locals: { request: request }
    )

    builder.set_text_body(txt.to_str)
    builder.set_html_body(html.to_str)

    users.each do |user|
      builder.add_recipient(:to, user.email, 'first' => user.name,
                                             'account-id' => user.id)
    end

    # Send it
    builder.finalize
  end
end


## requests_controller.rb
# app/controllers/requests_controller.rb

class RequestsController < ApplicationController

  # ...

  # POST /requests
  # POST /requests.json
  def create
    @request = Request.new(request_params)

    respond_to do |format|
      if @request.save
        # Send emails to users with enabled notifications
        RequestMailer.new_request(@request, User.where(notifications: true)).deliver_now

        format.html { redirect_to @request, notice: 'Request was successfully created.' }
        format.json { render :show, status: :created, location: @request }
      else
        format.html { render :new }
        format.json { render json: @request.errors, status: :unprocessable_entity }
      end
    end
  end

  # ...

end
	# app/mailers/application_mailer.rb

	# See: http://blog.mailgun.com/the-official-mailgun-ruby-sdk-is-here/
	require 'mailgun'

	class ApplicationMailer < ActionMailer::Base
	layout 'mailer'

	def host
	'mydomain.com'
	end

	def from
	'no-reply@mydomain.com'
	end

	def client
	# Lazy initialization
	@client \|\|= Mailgun::Client.new(ENV['MAILGUN_API_KEY'])
	end

	def batch_builder()
	obj = Mailgun::BatchMessage.new(client, host)
	obj.set_from_address(from)
	obj
	end
	end
	<!-- app/views/layouts/mailer.html.erb -->

	<!DOCTYPE html>
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<style>
	/* Email styles need to be inline */
	</style>
	</head>

	<body>
	<%= yield %>
	</body>
	</html>
	<!-- app/views/request_mailer/new_request.html.erb -->

	<div>
	<p>
	Id: <%= request.id %>
	</p>
	</div>
	app/views/request_mailer/new_request.text.erb
	---

	Id: <%= request.id %>
	# app/mailers/request_mailer.rb

	class RequestMailer < ApplicationMailer
	def new_request(request, users = [])
	builder = batch_builder() # From super-class
	builder.set_subject("Email title for: #{request.id}")

	# Render html version
	html = render_to_string(
	template: 'request_mailer/new_request',
	formats: [:html],
	locals: { request: request }
	)

	# Render plain text version
	txt = render_to_string(
	template: 'request_mailer/new_request',
	formats: [:text],
	# layout: false,
	locals: { request: request }
	)

	builder.set_text_body(txt.to_str)
	builder.set_html_body(html.to_str)

	users.each do \|user\|
	builder.add_recipient(:to, user.email, 'first' => user.name,
	'account-id' => user.id)
	end

	# Send it
	builder.finalize
	end
	end
	# app/controllers/requests_controller.rb

	class RequestsController < ApplicationController

	# ...

	# POST /requests
	# POST /requests.json
	def create
	@request = Request.new(request_params)

	respond_to do \|format\|
	if @request.save
	# Send emails to users with enabled notifications
	RequestMailer.new_request(@request, User.where(notifications: true)).deliver_now

	format.html { redirect_to @request, notice: 'Request was successfully created.' }
	format.json { render :show, status: :created, location: @request }
	else
	format.html { render :new }
	format.json { render json: @request.errors, status: :unprocessable_entity }
	end
	end
	end

	# ...

	end