使用 ko.mapping 使 knockout observablearray 项目可观察

Make knockout observablearray items observable with ko.mapping

我有这个型号:

var child = function(c){
    var self = this;
    self.id = ko.observable(c.id);
    self.first_name = ko.observable(c.first_name);
    self.last_name = ko.observable(c.last_name);
    self.gender_id = ko.observable(c.gender_id);
    self.birthday= ko.observable(c.birthday);
    self.family_id = ko.observable(c.family_id);
}

我有一个这样定义的视图模型:

var childrenViewModel = function(initialData){
    var self = this;
    //
    self.children = ko.observableArray(initialData);
    //
    self.removeChild = function(){};
};

我是这样获取初始数据的:

$.ajax({
    type: 'GET',
    url: getChildrenListUrl,
    contentType: 'application/json'
})
    .done(function (data) {
        vmChildren =new childrenViewModel(JSON.parse(data));
        ko.applyBindings(vmChildren,document.getElementById('portlet-children'));
        Metronic.unblockUI('#portlet-children');
    });

我现在想通过使用映射插件制作子 observablearray 的内容,observables 本身,但我在这样做时遇到了困难...

为什么需要 ko.mapping,难道你只是想将 initialData 映射为 child 的实例吗?

self.children = ko.observableArray(initialData.map(function(e){ 
                                         return new child(e);
                                   }));

Array.map