Question

我在骨干网上有一个简单的应用程序，逻辑对我来说不明确，这是我的第二个应用程序，我不知道逻辑是否合适以及我是如何构建逻辑的。
目标是当我加载页面时，我想要检索特定目录的所有文件夹和文件并打印它我创建了一个app general，其中包含另一个名为Folder的应用程序。当我加载页面时，我创建了一般应用程序，在文件夹中搜索并将文件夹和文件退回到带有ajax功能的json中。
我已经成功做到了，但我的问题是如何填充我的FolderView，FolderModel和文件夹集合？有必要这样做我想但我不知道如何将这个json传递给FolderCollection / FOlderModel。

这是我的appView

define(['jquery' , 'backbone', 'views/folder', 'models/folder', 'collections/folder', 'models/app'], 
    function($, Backbone, FolderView, FolderModel, FolderCollection, AppModel){
    var AppView = Backbone.View.extend({
        model: AppModel,
        el:$('#folder'),

        initialize: function(){
            console.log('initialize AppView');
            this.retrievFolderFile('uploads');
            //prendo le cartelle e le metto nel json

            this.folders = new FolderCollection();
            this.render();
            //this.todos.bind('sync', this.render, this);
            //this.todos.fetch();
        },
        render: function(){
            var element = this.$el;
            element.html('');
            this.folders.each(function(model){
                var folderView = new FolderView({model:model});

                element.append(folderView.el);
            });
        },
        retrievFolderFile: function(dir){
            var here = this;
            console.log('retrieveFolderFile');
            $.ajax({
                type: "POST",
                dataType: "json",
                data: {"dir": dir},
                url: 'function/retrieve_folder.php',
                success: function(data) {
                    console.log(data);
// ------------------ HERE I HAVE RESULT HOW TO PASS TO FOLDER VIEW/ COLLECTION?------
                }
            });
        }
    })

    return AppView;
});

这是我的folderModel

define(['backbone'],function(Backbone){
    var FolderModel = Backbone.Model.extend({
        defaults:{
            name:'Folder',
            path:''
        },
        initialize:function(){
            console.log('Initialized Folder model');
        }
    });

    return FolderModel;
});

这是我的FolderCollection

define(['backbone', 'models/folder'], function(Backbone, FolderModel){

    var folderCollection = Backbone.Collection.extend({
        model: FolderModel,
    });

    return folderCollection;
});

这是我的FolderView

define(['jquery', 'underscore', 'backbone', 'text!templates/folder.html'], function($, _, Backbone, FolderTemplate){
    var FolderView = Backbone.View.extend({
        el:$('#folder'),
        template: _.template(FolderTemplate),

        initialize: function(){
            console.log('FolderView initialized');
            this.render();
        },
        render: function(){
            console.log('FolderView render');

            //$(this.el).html(this.template({model: this.options.model}));
        }
    });

    return FolderView;
});

要检索文件夹和文件，我使用这个文件PHP，它返回一个有效的json到骨干

<?php
$dir = $_POST['dir'];
$data = fillArrayWithFileNodes( new DirectoryIterator( '../'.$dir ) );

function fillArrayWithFileNodes( DirectoryIterator $dir )
{
  $data = array();
  foreach ( $dir as $node )
  {
    if ( $node->isDir() && !$node->isDot() )
    {
        //$data[$node->getFilename()] = fillArrayWithFileNodes( new DirectoryIterator( $node->getPathname() ) );
        $arr_to_insert = array();
        $arr_to_insert['name'] = $node->getFilename();
        $arr_to_insert['type'] = 'folder';
        array_push($data, $arr_to_insert);
    }
    else if ( $node->isFile() )
    {
      //$data[] = $node->getFilename();
        $arr_to_insert = array();
        $arr_to_insert['name'] = $node->getFilename();
        $arr_to_insert['type'] = 'file';
        array_push($data, $arr_to_insert);
    }
  }
  return $data;
}
echo json_encode($data);
?>

如何从appview传递给我的json？在appview中进行folderand filde搜索是正确的还是我必须在folderModel中进行？因为当我点击文件夹后，我想再次检索其文件和文件夹。帮助我理解逻辑以及如何传递它。我想在像CaprseFolderFile这样的文件中调用一个函数，然后将它插入到模型中但是如何？

由于

Answer 1

AJAX 异步 ..因此，您正在进行ajax调用，然后调用正在迭代集合并呈现它们的render方法。

但是你的数据在成功回调之前和之后都没有准备好，我猜你的收藏品会被填充。因此，您应该在成功回调中填充集合，然后调用render。

所以这些内容

initialize: function () {
    console.log('initialize AppView');
    this.folders = new FolderCollection();
    this.retrievFolderFile('uploads');
},
render: function () {
    var element = this.$el;
    element.html('');
    this.folders.each(function (model) {
        var folderView = new FolderView({
            model: model
        });
        element.append(folderView.el);
    });
},
retrievFolderFile: function (dir) {
    var here = this;
    console.log('retrieveFolderFile');
    $.ajax({
        type: "POST",
        dataType: "json",
        data: {
            "dir": dir
        },
        url: 'function/retrieve_folder.php',
        success: function (data) {
            console.log(data);
            here.folders.set(data);
            here.render();
        }
    });
}

另外，为什么要处理ajax请求，其中已经存在由骨干提供的本地请求。

您可以在集合url中声明this.folders.fetch()，然后聆听sync或重新发送的事件，在我看来会更加清晰。

使用原生抓取

define(['jquery', 'backbone', 'views/folder', 'models/folder',
                             'collections/folder', 'models/app'],

function ($, Backbone, FolderView, FolderModel,
                                FolderCollection, AppModel) {
    var AppView = Backbone.View.extend({
        model: AppModel,
        el: $('#folder'),

        initialize: function () {
            this.folders = new FolderCollection();
            // This will automatically call the render once the 
            // collection is reset 
            this.listenTo(this.folders, 'reset', this.render);
            this.folders.data = 'uploads';
            this.folders.fetch();
        },
        render: function () {
            var element = this.$el;
            element.html('');
            this.folders.each(function (model) {
                var folderView = new FolderView({
                    model: model
                });

                element.append(folderView.el);
            });
        }
    })

    return AppView;
});

define(['backbone', 'models/folder'], function(Backbone, FolderModel){

    var folderCollection = Backbone.Collection.extend({
        model: FolderModel,
        url : 'function/retrieve_folder.php' + this.data;
    });

    return folderCollection;
});

Backbone在另一个模型内插入数据

1 个答案: