与backbone.js的简单rails集成_Backbone.js_Ruby On Rails 3.2

与backbone.js的简单rails集成

backbone.js ruby-on-rails-3.2

与backbone.js的简单rails集成,backbone.js,ruby-on-rails-3.2,Backbone.js,Ruby On Rails 3.2,使用rails和主干呈现第一页时遇到问题。请假设我已经正确安装并运行了所有gems。大多数coffeescript文件都是使用“rails g主干：scaffold Student”生成的，但我更改了一些文件和目录结构。这只是试图理解流程，而不是其他任何东西。我还在数据库中加载了一些学生数据。最后，当部署（开发）这个rails应用程序并访问localhost:3000时，我没有收到initialize函数中的警报这是文件 app/models/students.rb class Studen

使用rails和主干呈现第一页时遇到问题。请假设我已经正确安装并运行了所有gems。大多数coffeescript文件都是使用“rails g主干：scaffold Student”生成的，但我更改了一些文件和目录结构。这只是试图理解流程，而不是其他任何东西。我还在数据库中加载了一些学生数据。最后，当部署（开发）这个rails应用程序并访问localhost:3000时，我没有收到initialize函数中的警报

这是文件

app/models/students.rb

class Student < ActiveRecord::Base
  attr_accessible :dob, :email, :name, :phone_number
end

app/views/layouts/application.html.erb

<!DOCTYPE html>
<html>
<head>
  <title>School</title>
  <%= stylesheet_link_tag    "application", :media => "all" %>
  <%= javascript_include_tag "application" %>
  <%= csrf_meta_tags %>
</head>
<body>
  <tbody>
    <div id="students">
      <%= yield %>
    </div>
  </tbody>
</body>
</html>

app/assets/javascripts/school.js.coffee

#= require_self
#= require_tree ../templates
#= require_tree ./models
#= require_tree ./collections
#= require_tree ./views
#= require_tree ./routers

window.School =
  Models: {}
  Collections: {}
  Routers: {}
  Views: {}
  initialize: (data) -> alert 'Hello for rails'

class School.Collections.StudentsCollection extends Backbone.Collection
  model: School.Models.Student
  url: '/students'

class School.Models.Student extends Backbone.Model
  paramRoot: 'student'

class School.Routers.StudentsRouter extends Backbone.Router
  initialize: (options) ->
    @students = new School.Collections.StudentsCollection()
    @students.reset options.students

  routes:
    "index"    : "index"
    ".*"       : "index"

  index: ->
    @view = new School.Views.Students.IndexView(students: @students)
    $("#students").html(@view.render().el)

School.Views.Students ||= {}

class School.Views.Students.IndexView extends Backbone.View
  template: JST["templates/students/index"]

  initialize: () ->
    @options.students.bind('reset', @addAll)

  addAll: () =>
    @options.students.each(@addOne)

  addOne: (student) =>
    view = new School.Views.Students.StudentView({model : student})
    @$("tbody").append(view.render().el)

  render: =>
    @$el.html(@template(students: @options.students.toJSON() ))
    @addAll()

    return this

app/assets/javascripts/collections/students.js.coffee

#= require_self
#= require_tree ../templates
#= require_tree ./models
#= require_tree ./collections
#= require_tree ./views
#= require_tree ./routers

window.School =
  Models: {}
  Collections: {}
  Routers: {}
  Views: {}
  initialize: (data) -> alert 'Hello for rails'

class School.Collections.StudentsCollection extends Backbone.Collection
  model: School.Models.Student
  url: '/students'

class School.Models.Student extends Backbone.Model
  paramRoot: 'student'

class School.Routers.StudentsRouter extends Backbone.Router
  initialize: (options) ->
    @students = new School.Collections.StudentsCollection()
    @students.reset options.students

  routes:
    "index"    : "index"
    ".*"       : "index"

  index: ->
    @view = new School.Views.Students.IndexView(students: @students)
    $("#students").html(@view.render().el)

School.Views.Students ||= {}

class School.Views.Students.IndexView extends Backbone.View
  template: JST["templates/students/index"]

  initialize: () ->
    @options.students.bind('reset', @addAll)

  addAll: () =>
    @options.students.each(@addOne)

  addOne: (student) =>
    view = new School.Views.Students.StudentView({model : student})
    @$("tbody").append(view.render().el)

  render: =>
    @$el.html(@template(students: @options.students.toJSON() ))
    @addAll()

    return this

app/assets/javascripts/models/student.js.coffee

#= require_self
#= require_tree ../templates
#= require_tree ./models
#= require_tree ./collections
#= require_tree ./views
#= require_tree ./routers

window.School =
  Models: {}
  Collections: {}
  Routers: {}
  Views: {}
  initialize: (data) -> alert 'Hello for rails'

class School.Collections.StudentsCollection extends Backbone.Collection
  model: School.Models.Student
  url: '/students'

class School.Models.Student extends Backbone.Model
  paramRoot: 'student'

class School.Routers.StudentsRouter extends Backbone.Router
  initialize: (options) ->
    @students = new School.Collections.StudentsCollection()
    @students.reset options.students

  routes:
    "index"    : "index"
    ".*"       : "index"

  index: ->
    @view = new School.Views.Students.IndexView(students: @students)
    $("#students").html(@view.render().el)

School.Views.Students ||= {}

class School.Views.Students.IndexView extends Backbone.View
  template: JST["templates/students/index"]

  initialize: () ->
    @options.students.bind('reset', @addAll)

  addAll: () =>
    @options.students.each(@addOne)

  addOne: (student) =>
    view = new School.Views.Students.StudentView({model : student})
    @$("tbody").append(view.render().el)

  render: =>
    @$el.html(@template(students: @options.students.toJSON() ))
    @addAll()

    return this

app/assets/javascripts/router/students_router.js.coffee

#= require_self
#= require_tree ../templates
#= require_tree ./models
#= require_tree ./collections
#= require_tree ./views
#= require_tree ./routers

window.School =
  Models: {}
  Collections: {}
  Routers: {}
  Views: {}
  initialize: (data) -> alert 'Hello for rails'

class School.Collections.StudentsCollection extends Backbone.Collection
  model: School.Models.Student
  url: '/students'

class School.Models.Student extends Backbone.Model
  paramRoot: 'student'

class School.Routers.StudentsRouter extends Backbone.Router
  initialize: (options) ->
    @students = new School.Collections.StudentsCollection()
    @students.reset options.students

  routes:
    "index"    : "index"
    ".*"       : "index"

  index: ->
    @view = new School.Views.Students.IndexView(students: @students)
    $("#students").html(@view.render().el)

School.Views.Students ||= {}

class School.Views.Students.IndexView extends Backbone.View
  template: JST["templates/students/index"]

  initialize: () ->
    @options.students.bind('reset', @addAll)

  addAll: () =>
    @options.students.each(@addOne)

  addOne: (student) =>
    view = new School.Views.Students.StudentView({model : student})
    @$("tbody").append(view.render().el)

  render: =>
    @$el.html(@template(students: @options.students.toJSON() ))
    @addAll()

    return this

app/assets/javascripts/views/students/index_view.js.coffee

#= require_self
#= require_tree ../templates
#= require_tree ./models
#= require_tree ./collections
#= require_tree ./views
#= require_tree ./routers

window.School =
  Models: {}
  Collections: {}
  Routers: {}
  Views: {}
  initialize: (data) -> alert 'Hello for rails'

class School.Collections.StudentsCollection extends Backbone.Collection
  model: School.Models.Student
  url: '/students'

class School.Models.Student extends Backbone.Model
  paramRoot: 'student'

class School.Routers.StudentsRouter extends Backbone.Router
  initialize: (options) ->
    @students = new School.Collections.StudentsCollection()
    @students.reset options.students

  routes:
    "index"    : "index"
    ".*"       : "index"

  index: ->
    @view = new School.Views.Students.IndexView(students: @students)
    $("#students").html(@view.render().el)

School.Views.Students ||= {}

class School.Views.Students.IndexView extends Backbone.View
  template: JST["templates/students/index"]

  initialize: () ->
    @options.students.bind('reset', @addAll)

  addAll: () =>
    @options.students.each(@addOne)

  addOne: (student) =>
    view = new School.Views.Students.StudentView({model : student})
    @$("tbody").append(view.render().el)

  render: =>
    @$el.html(@template(students: @options.students.toJSON() ))
    @addAll()

    return this

app/assets/templates/students/index.jst.ejs

<h1>Listing students</h1>

<table id="students-table">
  <tr>
    <th>Name</th>
    <th>DOB</th>
    <th>Email</th>
  </tr>
</table>

列出学生名单
名称
出生日期
电子邮件

html输出

<!DOCTYPE html>
<html>
<head>
  <title>School</title>
  <link href="/assets/application.css?body=1" media="all" rel="stylesheet" type="text/css" />
<link href="/assets/students.css?body=1" media="all" rel="stylesheet" type="text/css" />
  <script src="/assets/jquery.js?body=1" type="text/javascript"></script>
<script src="/assets/jquery_ujs.js?body=1" type="text/javascript"></script>
<script src="/assets/jquery-ui-1.8.18.custom.min.js?body=1" type="text/javascript"></script>
<script src="/assets/underscore.js?body=1" type="text/javascript"></script>
<script src="/assets/json2.js?body=1" type="text/javascript"></script>
<script src="/assets/backbone.js?body=1" type="text/javascript"></script>
<script src="/assets/backbone_rails_sync.js?body=1" type="text/javascript"></script>
<script src="/assets/backbone_datalink.js?body=1" type="text/javascript"></script>
<script src="/assets/backbone-forms.js?body=1" type="text/javascript"></script>
<script src="/assets/school.js?body=1" type="text/javascript"></script>
<script src="/assets/students/edit.js?body=1" type="text/javascript"></script>
<script src="/assets/students/index.js?body=1" type="text/javascript"></script>
<script src="/assets/students/new.js?body=1" type="text/javascript"></script>
<script src="/assets/students/show.js?body=1" type="text/javascript"></script>
<script src="/assets/students/student.js?body=1" type="text/javascript"></script>
<script src="/assets/models/student.js?body=1" type="text/javascript"></script>
<script src="/assets/collections/students.js?body=1" type="text/javascript"></script>
<script src="/assets/views/students/edit_view.js?body=1" type="text/javascript"></script>
<script src="/assets/views/students/index_view.js?body=1" type="text/javascript"></script>
<script src="/assets/views/students/new_view.js?body=1" type="text/javascript"></script>
<script src="/assets/views/students/show_view.js?body=1" type="text/javascript"></script>
<script src="/assets/views/students/student_view.js?body=1" type="text/javascript"></script>
<script src="/assets/routers/students_router.js?body=1" type="text/javascript"></script>
<script src="/assets/application.js?body=1" type="text/javascript"></script>
  <meta content="authenticity_token" name="csrf-param" />
<meta content="46vcYK8H3HIUfZh9wfu+AtzCKs+/2TnESA2ILxhFx0E=" name="csrf-token" />
</head>
<body>
  <tbody>
  <div id="students">

  </div>
  </tbody>
</body>
</html>


学校

你有两个问题，看起来既相关又不相关

索引无法正确呈现的原因是，命名成品的内容块不存在。要使

正常工作，请将以下内容添加到

application.html.erb

：

但是，这将使您的代码得以显示，很可能无法使其正确运行

由于您使用的是rails主干网gem并利用了模板的使用，因此只需在index.html.erb中包含以下内容：

<div id="students"></div>

然后使用以下命令在index.html.erb中实例化主干路由器：

<script type="text/javascript"> $(function(){ try { window.SchoolRouter = new School.Routers.StudentsRouter({ students: <%= @students.to_json %> }); backbone.history.start(); }catch(e){ alert(e); // alert so that you see it. } }); </script>

$（函数（）{ 试一试{ window.SchoolRouter=new School.Routers.StudentsRouter（{students:}）； backbone.history.start（）； }捕获（e）{ 警惕（e）；//警惕以便你看到它。 } });

说到JavaScript，请确保您在浏览器中使用FireBug或开发面板。console.log（）是您最好的朋友。
将app/views/students/index.html.erb更改为以下代码可以解决问题
$（function（）{window.Sepms.initialize（{students:}）；}）是否绝对需要使用脚本标记？我意识到这有点像鸡蛋。。。但是，难道没有办法让应用程序以rails资产管道的方式初始化吗#我不知道。如果有的话，对于一个相当简单的问题来说，这似乎是一个不必要的抽象。如果您在rails中使用coffeescript，您可以使用$-> 来表示与onDocumentReady（）相同的内容。我认为我们可以将/=require-backbone/init 添加到application.js文件中，然后将所有初始化代码放入app/assets/javascript/backbone/init.js 中。这就是我在项目中采用的模式。我想我会添加一个详细的设置描述作为替代答案。