我有这个代码:
var attachmentsModel = {
convAttachments: ko.mapping.fromJS([])
};
$(function() {
ko.applyBindings(attachmentsModel)
refreshConvAttachments();
});
function refreshConvAttachments() {
$.ajax({
url: '/xxxxxxx/',
success: function (dataJS) {
// Send KO the data
ko.mapping.updateFromJS(attachmentsModel.convAttachments, dataJS);
}
});
}
上面的 AJAX 调用返回:
[{
"title": "BillGates",
"added_by": "xxx",
"thumb": "urlhere",
"id": 410,
"link": "/link/410",
"added_on": "2011-02-22T12:57:09-08:00"
}, {
"title": "biz-stone",
"added_by": "xxx",
"urlhere",
"id": 411,
"link": "/link/411",
"added_on": "2011-02-22T12:57:53-08:00"
}]
这工作正常。稍后,尽管用户能够添加附件,但这就是它破坏的地方。当它将新附件添加到模式并显示在页面上时,它会删除attachmentsModel.convAttachments
.
稍后,会发生这种情况:
ko.mapping.updateFromJS(attachmentsModel.convAttachments, file);
阿贾克斯回归:
[{
"title": "eric_schmidt",
"added_by": "xxx",
"thumb": "xxxxxx",
"id": 417,
"link": "/link/417",
"added_on": "2011-02-22T13:16:45-08:00"
}]
我希望这能给出一个清晰的过程,如果没有,请告诉我。有什么想法为什么在我使用时 knockoutjs 会杀死一切updateFromJS
?