Contact Form Mailer in Rails 4

I am trying to build a contact form in Rails 4, where the form takes a name, email, and body and sends it to my email address. Upon clicking "Submit", the app redirects back to the Contact page correctly, but no email appears to get sent.

routes.rb

match '/send_mail', to: 'contact#send_mail', via: 'post'

contact_email.html.erb

<!DOCTYPE html>
<html>
    <head>
        <%= stylesheet_link_tag    "application", media: "all", "data-turbolinks-track" => true %>
        <%= javascript_include_tag "application", "data-turbolinks-track" => true %>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body>
        <p>You have received the following email from <%= "#{ @name } (#{ @email }):" %></p>
        <p><%= @body %></p>
    </body>
</html>

contact_controller.rb

def send_mail
    name = params[:name]
    email = params[:email]
    body = params[:comments]
    ContactMailer.contact_email(name, email, body).deliver
    redirect_to contact_path, notice: 'Message sent'
end

contact_mailer.rb

class ContactMailer < ActionMailer::Base
    default to: # my email address

    def contact_email(name, email, body)
        @name = name
        @email = email
        @body = body`enter code here`

        mail(from: email, subject: 'Contact Request')
    end
end

contact.html.erb

<div class="container-content">
    <div class="container">
        <%= form_tag(send_mail_path) do %>
            <div class="form-group">
                <%= label_tag 'name', 'Name' %>
                <%= text_field_tag 'name', nil, class: 'form-control', placeholder: 'Your Name' %>
            </div>
           <div class="form-group">
               <%= label_tag 'email', 'Email' %>
               <%= email_field_tag 'email', nil, class: 'form-control', placeholder: 'Your Email Address' %>
           </div>
           <div class="form-group">
               <%= label_tag 'comments', 'Comments' %>
               <%= text_area_tag 'comments', nil, class: 'form-control', rows: 4, placeholder: 'Comments...' %>
           </div>
           <%= submit_tag nil, class: 'btn btn-default btn-about pull-right' %>
       <% end %>
  </div>
</div>

application.rb

config.action_mailer.delivery_method = :sendmail
config.action_mailer.perform_deliveries = true
config.action_mailer.raise_delivery_errors = true

It turned out that I hadn't configured my Heroku app with an external SMTP service (since I have never done anything with email before, I didn't know to do this). Since I'm relatively familiar with MailChimp, and especially since their Mandrill service has a free tier (I am building this app for a student organization), I easily added Mandrill to my Heroku app and included the following settings in application.rb:

ActionMailer::Base.smtp_settings = {
    address: 'smtp.mandrillapp.com',
    port: 587,
    user_name: ENV['MANDRILL_USERNAME'],
    password: ENV['MANDRILL_APIKEY']
}

Where the ENV vars were set automatically by the add-on.

来源：https://stackoverflow.com/questions/20769772/contact-form-mailer-in-rails-4

标签

ruby-on-rails

ruby

ruby-on-rails-4

actionmailer

contact-form