Question

我试图让AJAX在我的应用上运行，并且出现了一个奇怪的ActionView::MissingTemplate错误。我将此作为tasks#create方法：

def create
    @task = Task.new(task_params)
    @task.user_id = current_user.id
    if @task.save
      respond_to do |format|
        format.js
        format.html
      end
    #   redirect_to tasks_path, notice: 'Task was successfully created.'
    else
      render :new
    end
  end

这是我的views/tasks/create.js.erb：

$("#onetime-todo").html("<%= escape_javascript(render partial: 'items', locals: { task: @one_time }) %>")
$("#onetime-done").html("<%= escape_javascript(render partial: 'done', locals: { task: @one_time_done }) %>")

$("#daily-todo").html("<%= escape_javascript(render partial: 'items', locals: { task: @daily }) %>")
$("#daily-done").html("<%= escape_javascript(render partial: 'done', locals: { task: @daily_done }) %>")

$("#weekly-todo").html("<%= escape_javascript(render partial: 'items', locals: { task: @weekly }) %>")
$("#weekly-done").html("<%= escape_javascript(render partial: 'done', locals: { task: @weekly_done }) %>")

$("#monthly-todo").html("<%= escape_javascript(render partial: 'items', locals: { task: @monthly }) %>")
$("#monthly-done").html("<%= escape_javascript(render partial: 'done', locals: { task: @monthly_done }) %>")

这是我的tasks/index.html.erb：

            <%= simple_form_for(@create_task) do |f| %>
                <div class="row">
                    <div class="container">
                        <div class="col-xs-12 col-sm-9">
                            <%= f.text_field :name, placeholder: "What needs to get done?", class: "form-control" %>
                        </div>
                        <div class="col-xs-12 col-sm-3">
                            <%= f.select :frequency, options_for_select([["One-Time", "OneTime"],["Daily", "Daily"],["Weekly", "Weekly"],["Monthly", "Monthly"]]), {}, {class: "form-control"} %>
                        </div>
                        <div class="col-xs-12 text-center">
                            <%= f.button :submit, class: "btn ghost", remote: true %>
                        </div>
                    </div> <!-- container -->
                </div> <!-- row -->
            <% end %>

....

      <div class="col-xs-12 col-md-6 col-lg-12">
        <div class="content-box border-green">
          <h1>One-Time Tasks</h1>
                <div id="onetime-todo"><%= render partial: 'items', locals: { task: @one_time } %></div>
                <div id="onetime-done"><%= render partial: 'done', locals: { task: @one_time_done } %></div>
        </div> <!-- content box -->
        </div> <!-- col -->

        <div class="col-xs-12 col-md-6 col-lg-4">
        <div class="content-box">
          <h1>Daily</h1>
          <div id="daily-todo"><%= render partial: 'items', locals: { task: @daily } %></div>
          <div id="daily-done"><%= render partial: 'done', locals: { task: @daily_done } %></div>
        </div> <!-- content box -->
        </div> <!-- col -->

        <div class="col-xs-12 col-md-6 col-lg-4">
        <div class="content-box">
          <h1>Weekly</h1>
          <div id="weekly-todo"><%= render partial: 'items', locals: { task: @weekly } %></div>
          <div id="weekly-done"><%= render partial: 'done', locals: { task: @weekly_done } %></div>
        </div> <!-- content box -->
        </div> <!-- col -->

        <div class="col-xs-12  col-md-6 col-lg-4">
        <div class="content-box">
          <h1>Montly</h1>
          <div id="monthly-todo"><%= render partial: 'items', locals: { task: @monthly } %></div>
           <div id="monthly-done"><%= render partial: 'done', locals: { task: @monthly_done } %></div>
        </div> <!-- content box -->
        </div> <!-- col -->

任何人都可以看到我出错的地方吗？这似乎是一个奇怪的错误，因为我做有一个创建模板。我的服务器日志显示了这个：

Started POST "/tasks" for ::1 at 2017-08-13 21:48:44 -0700
Processing by TasksController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"guwmQBf1AmKhxvi1coysoegbkKhy6Znk/oMKEar4TXcZ1OieTqiyRnf3m3MR/XHBrOsJ1d7ncZp8pzqAxC93tQ==", "task"=>{"name"=>"Testing oh testing", "frequency"=>"OneTime"}, "commit"=>"Create Task"}
  User Load (0.1ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ?  ORDER BY "users"."id" ASC LIMIT 1  [["id", 1]]
   (0.1ms)  begin transaction
  SQL (0.5ms)  INSERT INTO "tasks" ("name", "frequency", "user_id", "created_at", "updated_at") VALUES (?, ?, ?, ?, ?)  [["name", "Testing oh testing"], ["frequency", "OneTime"], ["user_id", 1], ["created_at", "2017-08-14 04:48:44.237114"], ["updated_at", "2017-08-14 04:48:44.237114"]]
   (2.0ms)  commit transaction
Completed 500 Internal Server Error in 13ms (ActiveRecord: 2.6ms)

ActionView::MissingTemplate - Missing template tasks/create, application/create with {:locale=>[:en], :formats=>[:html], :variants=>[], :handlers=>[:erb, :builder, :raw, :ruby, :coffee]}. Searched in:
  * "/Users/lizbayardelle/Dropbox/Code/FAM/app/views"
  * "/Users/lizbayardelle/.rvm/gems/ruby-2.3.3/gems/ckeditor-4.2.2/app/views"
  * "/Users/lizbayardelle/.rvm/gems/ruby-2.3.3/gems/devise-4.2.0/app/views"

我的routes.rb非常简单，如果有帮助的话：

资源：任务

有人可以帮忙吗？

附加信息

根据要求，这是我的tasks#index方法：

  def index
    @create_task = Task.new
    @tasks = Task.all
    @one_time = Task.where(frequency: "OneTime", completed: false, user_id: current_user.id)
    @one_time_done = Task.where(frequency: "OneTime", completed: true, user_id: current_user.id)
    @daily = Task.where(frequency: "Daily", completed: false, user_id: current_user.id)
    @daily_done = Task.where(frequency: "Daily", completed: true, user_id: current_user.id)
    @weekly = Task.where(frequency: "Weekly", completed: false, user_id: current_user.id)
    @weekly_done = Task.where(frequency: "Weekly", completed: true, user_id: current_user.id)
    @monthly = Task.where(frequency: "Monthly", completed: false, user_id: current_user.id)
    @monthly_done = Task.where(frequency: "Monthly", completed: true, user_id: current_user.id)
  end

Answer 1

我正在尝试让AJAX在我的应用上工作，并且变得奇怪了 ActionView::MissingTemplate错误。

请求以 HTML 形式发出，即提交remote: true中的button无效，请尝试在form标记中进行设置，像这样：

<%= simple_form_for(@create_task), remote: true do |f| %>

我在服务器中收到此错误：


在28ms内完成500内部服务器错误（ActiveRecord：1.3ms）     NoMethodError - 每个'未定义的方法'为nil：NilClass：     应用程序/视图/任务/ _items.html.erb：2：     _app_views_tasks__items_html_erb__1746796241772610323_702981 03116960'

问题是 create.js.erb 中所需的所有变量都未在create操作中设置，它们仅在index中设置。所以你需要在create中创建所有这些变量，但你可以避免使用before_action回调重复，如下所示：

class TasksController < ApplicationController
  before_action :set_variables, only: [:index, :create]

  def index
  end

  def create
    @task = Task.new(task_params)
    @task.user_id = current_user.id
    if @task.save
      respond_to do |format|
        format.js
        format.html
      end
    #   redirect_to tasks_path, notice: 'Task was successfully created.'
    else
      render :new
    end
  end

  # other actions
  private
  def set_variables
    @create_task = Task.new
    @tasks = Task.all
    @one_time = Task.where(frequency: "OneTime", completed: false, user_id: current_user.id)
    @one_time_done = Task.where(frequency: "OneTime", completed: true, user_id: current_user.id)
    @daily = Task.where(frequency: "Daily", completed: false, user_id: current_user.id)
    @daily_done = Task.where(frequency: "Daily", completed: true, user_id: current_user.id)
    @weekly = Task.where(frequency: "Weekly", completed: false, user_id: current_user.id)
    @weekly_done = Task.where(frequency: "Weekly", completed: true, user_id: current_user.id)
    @monthly = Task.where(frequency: "Monthly", completed: false, user_id: current_user.id)
    @monthly_done = Task.where(frequency: "Monthly", completed: true, user_id: current_user.id)
  end
end

带有Rails的AJAX - 缺少模板

1 个答案: