Backbone.js:如何将挂起的同步事件排队到服务器

Backbone.js: How to queue pending sync events to server?

本文关键字：事件 同步 排队 服务器 挂起 js Backbone      更新时间：2023-09-26

我希望我的基于Backbone.js的web应用程序离线运行。在检测到脱机状态时，如何对主干网的同步事件进行排队，以便在连接恢复后将其发送到服务器？

您可以使用两种Backbone.sync方法，并根据离线/在线状态交换它们：

// Detect sync however you want here
var state = getInternetConnectivityState();
// Save off a local copy of the default Backbone.sync
var ajaxSync = Backbone.sync;
// Create a new Backbone.sync function that works with local storage. I would suggest
// using store.js as it works x-browser, takes care of JSON serialization and is well  
// supported
var localSync = function(method, model, options) {
    if ('GET' === method) {
        model.set('name', store.get(model.id).name);
    }
    ...
}
Backbone.sync = function() {
    if ('offline' === getInternetConnectivityState()) {
        localSync.call(this, arguments);
    }
    else {
        ajaxSync.call(this, arguments);
    }
}
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