Password reset mailer method
發送重設密碼的郵件程式碼會長這樣：
UserMailer.password_reset(self).deliver_now
重設密碼的郵件的運作方式其實幾乎跟帳號啟動一樣，我們先在 UserMailer 建立一個 password_reset 方法，然後定義純文字和 HTML email 的 view template：
app/mailers/user_mailer.rb
class UserMailer < ApplicationMailer
def account_activation(user)
@user = user
mail to: user.email, subject: "Account activation"
end
def password_reset(user)
@user = user
mail to: user.email, subject: "Password reset"
end
end
app/views/user_mailer/password_reset.text.erb
To reset your password click the link below:
<%= edit_password_reset_url(@user.reset_token, email: @user.email) %>
This link will expire in two hours.
If you did not request your password to be reset, please ignore this email and
your password will stay as it is.
app/views/user_mailer/password_reset.html.erb
<h1>Password reset</h1>
<p>To reset your password click the link below:</p>
<%= link_to "Reset password", edit_password_reset_url(@user.reset_token,
email: @user.email) %>
<p>This link will expire in two hours.</p>
<p>
If you did not request your password to be reset, please ignore this email and
your password will stay as it is.
</p>
跟啟動帳號的郵件一樣，我們可以透過 Rails email previewer 來預覽郵件：
test/mailers/previews/user_mailer_preview.rb
# Preview all emails at http://localhost:3000/rails/mailers/user_mailer
class UserMailerPreview < ActionMailer::Preview
# Preview this email at
# http://localhost:3000/rails/mailers/user_mailer/account_activation
def account_activation
user = User.first
user.activation_token = User.new_token
UserMailer.account_activation(user)
end
# Preview this email at
# http://localhost:3000/rails/mailers/user_mailer/password_reset
def password_reset
user = User.first
user.reset_token = User.new_token
UserMailer.password_reset(user)
end
end
預覽畫面如下：
純文字 email：
HTML email：
參考帳號啟動 email 的測試，重設密碼郵件的測試如下：
test/mailers/user_mailer_test.rb
require 'test_helper'
class UserMailerTest < ActionMailer::TestCase
test "account_activation" do
user = users(:michael)
user.activation_token = User.new_token
mail = UserMailer.account_activation(user)
assert_equal "Account activation", mail.subject
assert_equal [user.email], mail.to
assert_equal ["[email protected]"], mail.from
assert_match user.name, mail.body.encoded
assert_match user.activation_token, mail.body.encoded
assert_match CGI::escape(user.email), mail.body.encoded
end
test "password_reset" do
user = users(:michael)
user.reset_token = User.new_token
mail = UserMailer.password_reset(user)
assert_equal "Password reset", mail.subject
assert_equal [user.email], mail.to
assert_equal ["[email protected]"], mail.from
assert_match user.reset_token, mail.body.encoded
assert_match CGI::escape(user.email), mail.body.encoded
end
end
執行測試應該會通過（Green）：
$ bundle exec rake test
提交有效的 email 之後，呈現的畫面如下：
也可以在 server log 看到郵件內容：
Sent mail to [email protected] (24.3ms)
Date: Mon, 04 Apr 2016 18:26:19 +0800
From: [email protected]
To: [email protected]
Message-ID: <[email protected]>
Subject: Password reset
Mime-Version: 1.0
Content-Type: multipart/alternative;
boundary="--==_mimepart_5702414be69a0_7a43fef52cad2401009f";
charset=UTF-8
Content-Transfer-Encoding: 7bit
----==_mimepart_5702414be69a0_7a43fef52cad2401009f
Content-Type: text/plain;
charset=UTF-8
Content-Transfer-Encoding: 7bit
To reset your password click the link below:
https://localhost:3000/password_resets/TMTshEIj-gAvp9_nos8Log/edit?email=example%40railstutorial.org
This link will expire in two hours.
If you did not request your password to be reset, please ignore this email and
your password will stay as it is.
----==_mimepart_5702414be69a0_7a43fef52cad2401009f
Content-Type: text/html;
charset=UTF-8
Content-Transfer-Encoding: 7bit
<html>
<body>
<h1>Password reset</h1>
<p>
To reset your password click the link below:
</p>
<a href="https://localhost:3000/password_resets/TMTshEIj-gAvp9_nos8Log/edit?email=example%40railstutorial.org">Reset password</a>
<p>This link will expire in two hours.</p>
<p>
If you did not request your password to be reset, please ignore this email and
your password will stay as it is.
</p>
</body>
</html>
----==_mimepart_5702414be69a0_7a43fef52cad2401009f--