Rails destroy 动作不删除

Question

我想将服务对象添加到我的控制器中。然而 destroy 操作似乎没有正常工作 - 基本上它不会删除任何东西只是重定向到页面而没有 flash 消息。

user_stock_destroyer.rb

class UserStocksDestroyer
  def initialize(current_user, params, flash)
    @current_user = current_user
    @params = params[:id]
    @flash = flash
  end

  def call
    stock = Stock.find(params)
    @user_stock = UserStock.where(user_id: current_user.id, stock_id: stock.id).first
    @user_stock.destroy!
    flash[:notice] = 'Stock successfully removed'
  end

  private

  attr_reader :current_user, :params, :flash
end

user_stocks_controller.rb

class UserStocksController < ApplicationController
  def destroy
    UserStocksDestroyer.new(current_user, params, flash)
    redirect_to my_portfolio_path
  end
end

Answer 1

您正在创建对象，但没有调用 call 执行工作的方法

def destroy
  UserStocksDestroyer.new(current_user, params, flash).call
  redirect_to my_portfolio_path
end

Rails destroy 动作不删除

Rails destroy action doesn't delete

ruby

ruby-on-rails

service-object