Question

我有一个rails 4应用程序，我正在尝试使用基于用户＆＃34;用户名＆＃34;的friendly_id gem创建永久链接。我尝试根据用户用户名创建永久链接时收到的错误是"undefined method username="，它指向我的User_controller

到目前为止，这是我的代码。

Users_controller.rb

class UsersController < ApplicationController
before_action :signed_in_user, only: [:edit, :update]
  before_action :correct_user,   only: [:edit, :update]

  def index
    @users = User.all
  end


  def show
    @user.username = User.friendly.find(params[:id])
  end

  def new
    @user = User.new
  end

  def edit
  end

  def update
    if @user.update_attributes(user_params)
      flash[:success] = "Profile updated"
      redirect_to @user
    else
      render 'edit'
    end
  end

   def create
    @user = User.new(user_params)
    if @user.save
      sign_in @user
      flash[:success] = "Welcome to the Sample App!"
      redirect_to @user #edit_user_path(current_user)
    else
      render 'new'
    end
  end

 def following
    @title = "Following"
    @user = User.find(params[:id])
    @users = @user.followed_users.paginate(page: params[:page])
    render 'show_follow'
  end

  def followers
    @title = "Followers"
    @user = User.find(params[:id])
    @users = @user.followers.paginate(page: params[:page])
    render 'show_follow'
  end

  private

    def user_params
      params.require(:user).permit(:name, :username, :email, :password,
                                   :password_confirmation)
    end

    def signed_in_user
      unless signed_in?
        store_location
        redirect_to signin_url, notice: "Please sign in."
      end
    end

    def correct_user
      @user = User.friendly.find(params[:id])
      redirect_to(root_url) unless current_user?(@user)
    end

    def career_finder

    end
end

User.rb

class User < ActiveRecord::Base

  extend FriendlyId

  friendly_id :username, use: [:slugged, :finders]

Answer 1

通过friendly_id查找用户：

def show
  @user = User.friendly.find(params[:id])
end

readme for friendly_id

中介绍了这一点

Rails 4：Friendly_id gem通过用户名查找用户

1 个答案: