如何在Ruby on Rails Web应用程序中验证是否发送了帐户激活电子邮件

Question

I was building a web app with account activation feature. I am following Michael Hartl ROR tutorial and I am not getting any account activation email to my inbox. I tried to search online on how to verify if at all an email was sent. Like there should be an SMTP server we configure to send emails right? Did not find anything helpful. Can someone help pls?

My account_activations_controller.rb

class AccountActivationsController < ApplicationController

  def edit
    user = User.find_by(email: params[:email])
    if user && !user.activated? && user.authenticated?(:activation, params[:id])
      user.activate
      log_in user
      flash[:success] = "Account activated!"
      redirect_to user
    else
      flash[:danger] = "Invalid activation link"
      redirect_to root_url
    end
  end
end

User_mailer.rb

class UserMailer < ApplicationMailer

  def account_activation(user)
    @user = user
    mail to: user.email, subject: "Account activation"
  end
end

application_mailer.rb

class ApplicationMailer < ActionMailer::Base
  default from: "noreply@example.com"
  layout 'mailer'
end

development.rb

config.action_mailer.raise_delivery_errors = true
  config.action_mailer.raise_delivery_errors = true
  config.action_mailer.delivery_method = :test
  host = 'localhost:3000'
  config.action_mailer.default_url_options = { :host=> host }

Answer 1

Sandeep,

Keep reading the tutorial. I used an older version Michael's tutorial to learn rails, but came back when I wanted to send confirmation emails as well. I don't think you should expect an actual email to be sent (at least not in development mode), rails 4.1.x has mailer previews that you can view, which I think is what the tutorial covers.

When you get to a production environment, then you will need to set up an external server to send the actual email, but that will be in your production.rb file. If you are just learning, then you have many options, including setting up a gmail account (separate from your private account) in which to send a limited number of emails per day.

Here is the link I think you should look at: listing 10.15

My experience with Michael Hartl's tutorial was that it was almost flawless, you may have an issue or two with your particular system setup, but I think for the most part any issues I had were related to me not following the text properly.

Hope this help, good luck!

Answer 2

Add this to your config/environments/development.rb file

config.action_mailer.raise_delivery_errors = true

so you get notified if there is an error on email delivery.

Other than that you can add a field to the users table like activation_sent_at and populate it when sending the email so you can refer to it later.

Answer 3

Reading from the bottom of page 491: "Note that you will not receive an actual email in a development environment, but it will show up in your server logs. Section 10.3 discusses how to send email for real in a production environment."

So if you're wanting to follow the text explicitly, I'd checkout the goodies in Section 10.3. Hope that helps!