ruby-on-rails - ruby on Rails 4 - 一页上同一模型的多个表单

Question

在我的应用程序中有一个用户模型和一个任务模型。用户可以创建任务并管理它们。但现在我希望用户能够在一页上填写多个任务的表单。

tasks_controller.rb

class TasksController < ApplicationController
  before_action :find_task, only: [:show, :edit, :update, :destroy]
  before_action :authenticate_user!

 def new
    @task = current_user.tasks.build
 end

  def create
    @task = current_user.tasks.build(task_params)

    if @task.save
      redirect_to @task, notice: "Task erstellt"
    else
      render 'new'
    end
  end

def edit
end

def update
  if @task.update(task_params)
    redirect_to @task
  else
    render 'edit'
  end
end

def destroy
  @task.destroy
  redirect_to root_path, notice: "Task gelöscht"
end

def show
end

def index
  @tasks = Task.all.order("created_at DESC")
end

private

def task_params
  params.require(:task).permit(:name, :description, :urgency, :importance, :time)
end

def find_task
  @task = Task.find(params[:id])
end
end

new.html.haml

- 6.times do
= form_for @task do |t|
    = t.text_field :name
    %br
    = t.text_area :description  
    %br
    = t.text_field :urgency
    %br
    = t.text_field :importance
    %br
    = t.text_field :time
    %br
= t.submit "Bestätigen"

但这显然不起作用。我收到以下错误:

ArgumentError in Tasks#new
Showing C:/Sites/taskr4/app/views/tasks/new.html.haml where line #13 raised:

wrong number of arguments (0 for 1..2)
Rails.root: C:/Sites/taskr4

Application Trace | Framework Trace | Full Trace app/views/tasks/new.html.haml:13:in block in >_app_views_tasks_new_html_haml__991073273_86859300' app/views/tasks/new.html.haml:1:intimes' app/views/tasks/new.html.haml:1:in >`_app_views_tasks_new_html_haml__991073273_86859300'

Answer 1

你的异常回溯是什么？从你的帖子来看，我认为应该有任何错误。

顺便说一句，如果您想创建或编辑多个任务，请查看http://railscasts.com/episodes/198-edit-multiple-individually 。

<% form_tag create_multiple_tasks_path, :method => :put do %>
  <% 6.times do %>
    <% fields_for "tasks[]", Task.new do |f| %>
      <h2><%=h task.name %></h2>
      <%= render "fields", :f => f %>
    <% end %>
  <% end %>
  <p><%= submit_tag "Submit" %></p>
<% end %>


def create_multiple
  @tasks = params[:tasks].map do |task_params|
     Project.new(task_params).save
     # TODO: add validate and error messages.
  end
end