Question

我想创建一个按钮，在按下时向用户发送电子邮件 - 所以我使用ActionMailer - http://guides.rubyonrails.org/action_mailer_basics.html#sending-emails 如第2节至第2.1.4段所述，我创建了：

应用/邮寄者/ user_mailer.rb

class UserMailer < ActionMailer::Base
default from: 'myemail@gmail.com'
end

def send_email(user)
  @user = user
  @url  = 'http://example.com/login'
  mail(to: @user.email, subject: 'You receive this email because you click on the btn)
 end
end

所以在这里，我不知道在@url中放入什么价值？

然后我为我的电子邮件创建了一个视图 - 但我不知道在我的用户模型中要调用什么来告诉它在用户点击按钮时发送电子邮件，这是我的 app / controllers /user_controller.rb

class UsersController < ApplicationController
  before_action :set_user, only: [:show, :edit, :update, :destroy]
  # GET /users
  # GET /users.json
  def index
    @users = User.all
    @users = User.paginate(:page => params[:page], :per_page => 50)
  end

  # GET /users/1
  # GET /users/1.json
  def show
    @user = User.find(params[:id])
  end

  # GET /users/new
  def new
    @user = User.new
  end

  # GET /users/1/edit
  def edit
  end

  # POST /users
  # POST /users.json
  def create
    @user = User.new(user_params)

    respond_to do |format|
      if @user.save
        format.html { redirect_to @user, notice: 'User was successfully created.' }
        format.json { render action: 'show', status: :created, location: @user }
      else
        format.html { render action: 'new' }
        format.json { render json: @user.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /users/1
  # PATCH/PUT /users/1.json
  def update
    respond_to do |format|
      if @user.update(user_params)
        format.html { redirect_to @user, notice: 'User was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @user.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /users/1
  # DELETE /users/1.json


  private
    # Use callbacks to share common setup or constraints between actions.
    def set_user
      @user = User.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def user_params
      params[:user]
    end


   def self.find_for_facebook_oauth(auth)
  where(auth.slice(:provider, :uid)).first_or_create do |user|
    user.provider = auth.provider
    user.uid = auth.uid
    user.email = auth.info.email
    user.password = Devise.friendly_token[0,20]
    user.name = auth.info.name   # assuming the user model has a name
    user.image = auth.info.image # assuming the user model has an image
  end
end


end

现在在我的观点中，我希望用户在按下此按钮时收到一封电子邮件 -

<button class="btn btn-default" type="button">Get my reward</button>

Answer 1

从User模型中，您可以调用UserMailer.send_email(self)。您可以将其放入方法中并使用after_save回调进行调用，以便在User更新其个人资料时发送电子邮件。

Rails 4 - 创建一个按钮，向用户发送电子邮件onclick

1 个答案: