通過點擊按鈕將項目發送到另一頁

Question

我有一個小任務註冊表系統，用戶可以在其中創建，編輯和刪除他們的任務。我試圖創建一個「任務完成」按鈕，單擊時將給定的任務移動到另一個頁面。

下面是我的控制器，視圖和路線：

class TarefasController < ApplicationController 

    before_filter :authenticate_user! 

    def index 
     @tarefa = current_user.tarefas.all 
    end 

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

    def new 
     @tarefa = Tarefa.new 
    end 

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

    def create 
     @tarefa = current_user.tarefas.new(tarefa_params) 
     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, :time) 
     end 


end 

下面是我的看法：

<div class="row container-fluid"> 
<br><br><br><br> 
    <div class="col-md-8 col-md-offset-2"> 


     <div class="panel panel-info "> 

     <div class="panel-heading"><h3>Lista de tarefas</h3></div> 

      <div class="panel-body"> 


       <button type="button" class="btn btn-default"><%= link_to 'Nova Tarefa', new_tarefa_path %></button> 

      <div class="table table-responsive"> 
       <table class="table table-bordered"> 
        <tr> 
        <th>Titulo</th> 
        <th>Descrição</th> 
        <th>Data e Hora</th> 
        <th>Cronometro</th> 
        <th>Estado da Tarefa</th> 
        <th colspan="3"></th> 
        </tr> 

        <% @tarefa.each do |tarefa| %> 
        <tr> 
         <td><%= tarefa.titulo %></td> 
         <td><%= tarefa.descricao %></td> 
         <td><%= tarefa.data %></td> 
         <td><%= timeago_tag tarefa.created_at, :nojs => true, :limit => 10.days.ago %></td> 
         <td><button type="button" class="btn btn-default"><%= link_to 'Mostrar', tarefa_path(tarefa) %></button></td> 
         <td><button type="button" class="btn btn-default"><%= link_to 'Editar', edit_tarefa_path(tarefa) %></button></td> 
         <td><button type="button" class="btn btn-default"><%= link_to 'Apagar', tarefa_path(tarefa), method: :delete, data: { confirm: 'Tem certeza?'} %></button></td> 
        </tr> 
        <% end %> 
       </table> 
      </div> 
      </div> 
     </div> 
     </div> 
    </div> 

</div> 

我的路線：

Rails.application.routes.draw do 
    devise_for :users 
    # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html 
    resources :tarefas 
    match 'tarefas/tarefascompletas' => 'tarefas#completedtask', via: 'get' 
    root 'home#index' 
end 

Answer 1

基本上你可以不建立這樣一個按鈕通過使用update操作添加任何其他路由或操作：

<%= form_for(tarefa) do |f| %> 
    <%= f.hidden_field :complete, value: true %> 
    <%= f.submit 'Mark as complete' %> 
<% end %> 

提供的tarefa已被保留，這將發送一個PATCH請求到/tarefas/:id。

如果你確實需要不同的響應，那麼標準更新然後添加一個自定義操作。但不要使用GET，因爲GET請求應該是冪等的（而不是改變資源）。相反，你想使用PATCH或PUT。

resources :tarefas do 
    member do 
    patch :complete 
    end 
end 

---

<%= button_to 'Mark as complete', complete_tarefa(tarefa), method: :patch %> 

---

# PATCH /tarefas/:id/complete 
def complete 
    @tarefa = current_user.tarefas.find_by(id: params[:id]) 
    if @tarefa.update(complete: true) 
    redirect_to @tarefa 
    else 
    render 'edit' 
    end 
end