knockout.js - foreach 内淘汰 foreach

Question

举个例子——

   <!--ko foreach: WorkItems-->
      <tbody data-bind="foreach: ActionPlans">
         // table data here
      </tbody>
   <!--/ko-->

我试图在“此处的表数据”中仅显示属于当前迭代的 WorkItem 的 ActionPlan 项目。

问题 -

我的问题是当前“此处的表格数据”显示所有工作项的所有操作计划。

我的模型结构为 Person > WorkItem(array) > ActionPlan(array)

我努力了

   <!--ko foreach: WorkItems-->
      <tbody data-bind="foreach: $parent.ActionPlans">
         // table data here
      </tbody>
   <!--/ko-->

添加 $parent 不会显示任何行动计划...

-------------- 按要求编辑 - --------

var PersonViewModel = function(data) {
var self = this;
ko.mapping.fromJS(data, trainingCourseItemMapping, self);

self.addWorkItem = function() {
    var WorkItem = new WorkItemVM({
        Id: null,
        JobSkillsAndExpDdl: "",
        JobSkillsAndExperience: "",
        ActionPlans: ko.observableArray(),
        PersonId: data.Id
        })
   self.WorkItems.push(WorkItem)
};

self.addActionPlan = function () {
    var actionPlan = new ActionPlanVM({
        Id: null,
        priorityAreaStage: "",
        goal: "",
        action: "",
        byWho: "",
        byWhen: ""
        WorkItemId: data.Id
    });
    self.ActionPlans.push(actionPlan);
};
}

数组映射

var trainingCourseItemMapping = {
'WorkItem': {
    key: function(workitem) {
        return ko.utils.unwrapObservable(workitem.Id);
    },
    create: function(options) {
        return new WorkItemVM(options.data);
    },
    'ActionPlans': {
        key: function (actionPlanItem) {
            return ko.utils.unwrapObservable(actionPlanItem.id);
        },
        create: function (options) {
            return new ActionPlanVM(options.data);
        }

    }
}

数组项映射

var WorkItemVM = function(data) {
    var self = this;
    ko.mapping.fromJS(data, trainingCourseItemMapping, self);
}

var ActionPlanVM = function(data) {
    var self = this;
    ko.mapping.fromJS(data, {}, self);
}

编辑 2 ---------------------

这是呈现的 HTML，您可以看到它呈现了一个 foreach：ActionPlans for each WorkItem with an ActionPlan

标签： knockout.jsknockout-2.0knockout-mapping-plugin

Answer 1

我认为您不需要包含$parent，因为它已经在WorkItems binding context.

小提琴