如何在ExtJS 5中的Ajax代理中听取成功？ [英] How can I listen for success in an Ajax Proxy in ExtJS 5?

问题描述

我有一个带有RowEditing插件的网格，其商店的AjaxProxy使用JsonWriter将更新写回到服务器。

当更新发生时，我需要点燃一些要更新另一个组件的代码，需要单独访问服务器。

这必须在JsonWriter返回之后触发，因为它依赖在服务器上更新的数据。所以我听不到这个商店的更新事件，因为发生在Ajax调用之前（即使是禁止批处理）。

endupdate的侦听器，如下所示，但在AJAX请求发生之前再次触发：

  var ds = new Ext。 data.Store（{
 model：modelname，
 autoSync：true，
 proxy：{
 type：ajax，
 api：{
 create ：ajax.aspx？xaction = create，
读取：ajax.aspx？xaction = read，
 update：ajax.aspx？xaction = update，
 destroy： ajax.aspx？xaction = destroy
}，
 batchActions：false，
 reader：{type：json，rootProperty：rows，totalProperty：results}，
 writer：{type：json，encode：true，writ eAllFields：true，rootProperty：rows} 
}，
 listeners：{
 load：{fn：reloadPreview}，
 endupdate：{fn：reloadPreview} 
 } 
}）; 
  

我不会从服务器发回任何回应作者的更新电话我似乎没有找到关于AjaxProxy或JsonWriter所期待的任何文档，并发送一个空白的响应似乎有效。

解决方案

p>您是否尝试将侦听器添加到写入事件？

write（store，operation，eOpts）
通过配置的代理

http://docs.sencha.com/extjs/5.0.0/apidocs/#!/api/ Ext.data.Store-event-write

I have a grid with the RowEditing plugin whose Store's AjaxProxy uses a JsonWriter to write updates back to the server.

When an update occurs, I need to fire some code to update another component, which requires a separate trip to the server.

This has to fire after the JsonWriter comes back, since it depends on the data being updated on the server. So, I can't listen for the store's "update" event, since that occurs before the Ajax call is made (even with batching disabled).

I tried putting a listener for "endupdate", as follows, but that again fires before the AJAX request is made:

        var ds = new Ext.data.Store({
            model:      modelname,
            autoSync:   true,
            proxy: {
                type:           "ajax",
                api: {
                    create:     "ajax.aspx?xaction=create",
                    read:       "ajax.aspx?xaction=read",
                    update:     "ajax.aspx?xaction=update",
                    destroy:    "ajax.aspx?xaction=destroy"
                },
                batchActions:   false,
                reader:         { type: "json", rootProperty: "rows", totalProperty: "results" },
                writer:         { type: "json", encode: true, writeAllFields: true, rootProperty: "rows" }
            },
            listeners: {
                load:       { fn: reloadPreview },
                endupdate:  { fn: reloadPreview }
            }
        });

I don't send any response back from the server for the writer's "update" call... I can't seem to find any documentation on what AjaxProxy or JsonWriter is expecting back, and sending a blank response seems to work.

解决方案

Did you try to add listener to "write" event ?

write( store, operation, eOpts ) Fires whenever a successful write has been made via the configured Proxy

http://docs.sencha.com/extjs/5.0.0/apidocs/#!/api/Ext.data.Store-event-write

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