我正在查看来自http://www.backbonerails.com/
的示例,它看起来完全相同。
让我从我的应用程序中为您绘制一张图片:
routes.rb:
Mario::Application.routes.draw do
root to: 'application#index'
resources :conferences
resources :participations, only: [:create]
end
class ConferencesController < ApplicationController
respond_to :json
def show
@conference = Conference.find params[:id]
end
def index
@conferences = Conference.all
end
end
由index.json.rabl
格式化的rsponse:
collection @conferences
attributes :id, :title
node(:date_from){|c| I18n.l c.date_from, format: :short}
node(:date_to){|c| I18n.l c.date_to, format: :short}
node(:lectures) do |c|
c.lectures_by_day.map do |l|
partial 'lectures/base', object: l
end
end
这是我从http://localhost:3000/conferences.json
获得的回复:
[
{
"id": 1,
"title": "Ruby on Rails for Dummies",
"date_from": "11 Dec 12:00",
"date_to": "13 Dec 17:00",
"lectures": []
}
]
这是应该从这里获取的Backbone模型:
@Mario.module "Entities", (Entities, App, Backbone, Marionette, $, _) ->
class Entities.Conference extends Backbone.Model
defaults:
title: ''
class Entities.ConferenceCollection extends Backbone.Collection
model: Entities.Conference
url: '/conferences.json'
这就是我在js控制台中最终得到的结果:
cc=new Mario.Entities.ConferenceCollection()
▹ConferenceCollection {length: 0, models: Array[0], _byId: Object, constructor: function, model: function…}
cc.fetch()
此时,rails服务器响应(来自log/development.log
)
2013-12-11T18:07:55+01:00 [ INFO] 40497 : Started GET "/conferences.json" for 127.0.0.1 at 2013-12-11 18:07:55 +0100
2013-12-11T18:07:55+01:00 [ INFO] 40497 : Processing by ConferencesController#index as JSON
2013-12-11T18:07:55+01:00 [DEBUG] 40497 : Conference Load (0.2ms) SELECT "conferences".* FROM "conferences"
2013-12-11T18:07:55+01:00 [DEBUG] 40497 : (0.1ms) SELECT COUNT(*) FROM "lectures" WHERE "lectures"."conference_id" = 1 AND ("lectures"."date_from" BETWEEN '2013-12-11' AND '2013-12-12')
2013-12-11T18:07:55+01:00 [ INFO] 40497 : Rendered conferences/index.json.rabl (14.2ms)
2013-12-11T18:07:55+01:00 [ INFO] 40497 : Completed 200 OK in 20ms (Views: 18.3ms | ActiveRecord: 0.5ms)
回到js控制台:
cc.models[0]
▹Conference {cid: "c6", attributes: Object, collection: ConferenceCollection, _changing: false, _previousAttributes: Object…}
cc.models[0].attributes
▽attributes: Object
▹_byId: Object
▹_onModelEvent: function (event, model, collection, options) {
▹_prepareModel: function (attrs, options) {
▹_removeReference: function (model) {
▹_reset: function () {
▹add: function (models, options) {
▹all: function () {
▹any: function () {
▹at: function (index) {
▹bind: function (name, callback, context) {
▹chain: function () {
▹clone: function () {
▹collect: function () {
...
等。等等 这些显然不是定义的模型属性。
到底是怎么回事?这应该是如此简单。我一定错过了什么,但是什么?为什么Backbone没有将正确的JSON结构解释为模型的属性?
答案 0 :(得分:0)
答案 1 :(得分:0)
一如既往,我花了一整天的时间来修复它,并在发布问题后找到了解决方法。
好的,问题在申请的上述部分中没有出现。在我的资产管道中,我已经包含backbone_rails_sync.js,它允许将属性包装在paramRoot
中,这样当您执行model.save()
时,转到rails控制器的参数如下所示:
{"conference"=>{"title"=>"new conference", "category" => "super conferences"}, "action"=>"create", "controller"=>"conferences"}
而不是
{"title"=>"new conference", "category" => "super conferences", "action"=>"create", "controller"=>"conferences"}
这个特殊的同步补丁完全让我失望。
经过不多考虑之后,我用不同的monkey patch 替换了它。现在一切正常,我的参数仍然包裹得很好。