Question

我使用rails 4和actionmailer允许用户在发送之前编辑生成的电子邮件。

当我尝试加载编辑页面时，出现此错误。

Showing /var/www/rqm3/app/views/rfis/mail.html.erb where line #5 raised:
undefined method `body' for nil:NilClass

这是第5行的推荐。

 <%= text_area_tag :email_body, @mail_message.html_part.body.raw_source,class:"tinymce", rows:40, cols:120 %>

我在控制器中设置了@mail_message。

  def mail
    @mail_message = RfiMailer.send_rfi(current_user, @rfi)
  end

感谢任何有帮助的人。

编辑：

rfis_controller：

class RfisController < ApplicationController
  before_action :set_rfi, only: [:show, :edit, :update, :destroy, :mail]
  before_action :authenticate_user!
  # GET /rfis
  # GET /rfis.json
  def index
    @rfis = Rfi.all
  end

  # GET /rfis/1
  # GET /rfis/1.json
  def show
  end

  # GET /rfis/new
  def new
    @rfi = Rfi.new
  end

  # GET /rfis/1/edit
  def edit
  end

  def send_rfi

  end

  def mail
    @mail_message = RfiMailer.send_rfi(current_user)
    # @mail_message = RfqMailer.placeholder_message(current_user, Rfq.last)
  end

  # POST /rfis
  # POST /rfis.json
  def create
    @rfi = Rfi.new(rfi_params)

    respond_to do |format|
      if @rfi.save
        format.html { redirect_to mail_rfi_url(@rfi), notice: 'Rfi was successfully created.' }
        format.json { render :show, status: :created, location: @rfi }
      else
        format.html { render :new }
        format.json { render json: @rfi.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /rfis/1
  # PATCH/PUT /rfis/1.json
  def update
    respond_to do |format|
      if @rfi.update(rfi_params)
        format.html { redirect_to @rfi, notice: 'Rfi was successfully updated.' }
        format.json { render :show, status: :ok, location: @rfi }
      else
        format.html { render :edit }
        format.json { render json: @rfi.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /rfis/1
  # DELETE /rfis/1.json
  def destroy
    @rfi.destroy
    respond_to do |format|
      format.html { redirect_to rfis_url, notice: 'Rfi was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

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

    # Never trust parameters from the scary internet, only allow the white list through.
    def rfi_params
      params.require(:rfi).permit(:due, :rfi_type, :parties, :reference, :svg_ref, :vendor_ref, :email_body)
    end
end

rfi_mailer.rb

class RfiMailer < ApplicationMailer
    default from:"test@test.com"
    def send_rfi(user)
        mail(to:"someemail", subject:"test")
    end
end

Answer 1

首先，进行一些清理

before_action :set_rfi, only: [:show, :edit, :update, :destroy, :mail]

你也可以写

before_action :set_rfi, except: [:index, :new]

返回主题

html_part为零，这就是为什么你不能使用它的主体而它会引发异常。请确保您的电子邮件有2个模板，一个用于文本部分，另一个用于html部分。有关详细信息，请参阅rails Doc

http://guides.rubyonrails.org/action_mailer_basics.html#mailer-views

尝试编辑电子邮件时Rails / Actionmailer错误

1 个答案: