Question

我正在创建一个简单的应用程序，用户可以删除，编辑，查看和创建任务，任务包含应该执行的描述，标题和日期。

我部署了设备来注册用户和用户登录，但是我很难按用户“确定”任务，即用户将登录并且只能查看，编辑和删除他创建的任务。

我的架构：

  ActiveRecord::Schema.define(version: 20170407164641) do

  # These are extensions that must be enabled in order to support this database
  enable_extension "plpgsql"

  create_table "tarefas", force: :cascade do |t|
    t.string   "titulo"
    t.text     "descricao"
    t.datetime "data"
    t.integer  "user_id"
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
    t.index ["user_id"], name: "index_tarefas_on_user_id", using: :btree
  end

  create_table "users", force: :cascade do |t|
    t.string   "email",                  default: "", null: false
    t.string   "encrypted_password",     default: "", null: false
    t.string   "reset_password_token"
    t.datetime "reset_password_sent_at"
    t.datetime "remember_created_at"
    t.integer  "sign_in_count",          default: 0,  null: false
    t.datetime "current_sign_in_at"
    t.datetime "last_sign_in_at"
    t.inet     "current_sign_in_ip"
    t.inet     "last_sign_in_ip"
    t.datetime "created_at",                          null: false
    t.datetime "updated_at",                          null: false
    t.index ["email"], name: "index_users_on_email", unique: true, using: :btree
    t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
  end

end

我使用了belongs_to：user和has_many：tasks。

我的tasks_controller：

    class TarefasController < ApplicationController

before_filter :authenticate_user!

def index
    @tarefa = Tarefa.all
end

def show
    @tarefa = Tarefa.find(params[:id])

 end

def new
    @tarefa = Tarefa.new
end

def edit
    @tarefa = Tarefa.find(params[:id])
end

def create
     @tarefa = Tarefa.new(tarefa_params)
     @user = current_user
     if @tarefa.save
        redirect_to @tarefa
     else
        render 'new'
     end
end

def update
    @tarefa = Tarefa.find(params[:id])
    if @tarefa.update(tarefa_params)
        redirect_to @tarefa
    else
        render 'edit'
    end
end

def destroy
    @tarefa = Tarefa.find(params[:id])
    @tarefa.destroy

    redirect_to tarefas_path
end

private
  def tarefa_params
    params.require(:tarefa).permit(:titulo, :descricao, :data)
  end
end

Answer 1

如果您在User和Tarefa模型之间创建了一对多关系，请在用户

下创建新的Tarefa记录

我认为这些任务编辑/修改选项仅在登录后可供用户使用，因此请将控制器更改为：

def edit
    @tarefa = current_user.tarefas.find_by(id: params[:id])
end

def create
     @tarefa = current_user.tarefas.new(tarefa_params)
     @user = current_user
     if @tarefa.save
        redirect_to @tarefa
     else
        render 'new'
     end
end

def update
    @tarefa = current_user.tarefas.find_by(id: params[:id])
    if @tarefa.update(tarefa_params)
        redirect_to @tarefa
    else
        render 'edit'
    end
end

def destroy
    @tarefa = current_user.tarefas.find_by(id: params[:id])
    @tarefa.destroy

    redirect_to tarefas_path
end

private
  def tarefa_params
    params.require(:tarefa).permit(:titulo, :descricao, :data)
  end
end

如果要列出与用户相关的所有tarefas，可以使用

list_of_user_tasks = current_user.tarefas

或

 user = User.find_by(id: any_user_id)
 list_of_user_tasks = user.tarefas

这是基本而简单的，但还有更多的方法。

设计 - “范围”每用户系统任务

1 个答案: