从行的角动态建模列数据 [英] modelling data from rows to columns in Angular dynamically

问题描述

我有数据，看起来像这样：

I have data that looks like this:

$scope.items =[{name: "item1", year : "2013", value : "100"},
    {name: "item1", year : "2012", value : "97"},
    {name: "item1", year : "2011", value : "98" },
    {name: "item2", year : "2013", value : "-7" },
    {name: "item2", year : "2012", value : "-6" },
    {name: "item2", year : "2011", value : "-5" },
    {name: "item3", year : "2013", value : "93" },
    {name: "item3", year : "2013", value : "91" },
    {name: "item3", year : "2012", value : "93" },
    {name: "item4", year : "2013", value : "-35" },
    {name: "item4", year : "2012", value : "-36" },
    {name: "item4", year : "2011", value : "-37" },
    {name: "item5", year : "2013", value : "58" },
    {name: "item5", year : "2012", value : "55" },
    {name: "item5", year : "2011", value : "56" }]

我要呈现的数据，例如：

I want to render the data as such:

Name  2011 2012 2013
item1   98   97  100
item2   -5   -6   -7
tiem3   93   91   93
item4  -35  -36  -37
item5   58   55   56

我怎样才能做到这一点采用了棱角分明？
我理解ngRepeat的基础知识，但如果我这样做
NG-重复=（键，值）中的项目，然后value.name或value.year我对他们有15个实例，而不是仅仅ITEM1至第5项和2011年，2012年和2013。
理想情况下，我想有一个循环，使该年的列标题和另外一个循环，让我物品行的名单，那么我会用行，列参考值。任何想法？

How can I achieve this using Angular? I understand the basics of ngRepeat but if I do ng-repeat = "(key, value) in items" and then value.name or value.year I have 15 instances of them instead of just item1 to item 5 and 2011, 2012 and 2013. Ideally I would like to have one loop that gives the years for the columns headers and one other loop that gives me the list of items for the rows, then i would reference the values by rows, columns. Any ideas?

推荐答案

您可以使用_lodash得到帮助。

You can use _lodash to get helped.

脚本：

var app = angular.module('app',[]);
app.controller('TestCtrl',['$scope',function($scope){
  var items =[{name: "item1", year : "2013", value : "100"},
      {name: "item1", year : "2012", value : "97"},
      {name: "item1", year : "2011", value : "98" },
      {name: "item2", year : "2013", value : "-7" },
      {name: "item2", year : "2012", value : "-6" },
      {name: "item2", year : "2011", value : "-5" },
      {name: "item3", year : "2013", value : "93" },
      {name: "item3", year : "2013", value : "91" },
      {name: "item3", year : "2012", value : "93" },
      {name: "item4", year : "2013", value : "-35" },
      {name: "item4", year : "2012", value : "-36" },
      {name: "item4", year : "2011", value : "-37" },
      {name: "item5", year : "2013", value : "58" },
      {name: "item5", year : "2012", value : "55" },
      {name: "item5", year : "2011", value : "56" }]


      $scope.headCells = _.keys(_.groupBy(items, function(item){ return item.year}));
      $scope.rows = _.groupBy(items, function(item){ return item.name});

      $scope.sortByYearProp = function(values){
        return _.sortBy(values, function(value){
          return value.year;
        });
      }

}])

HTML

<table ng-controller="TestCtrl as test">
  <tr><th>Name</th><th ng-repeat="year in headCells">{{year}}</th></tt>
  <tr ng-repeat="(itemName, value) in rows"><td>{{itemName}}</td><td ng-repeat="obj in sortByYearProp(value)">{{obj.value}}</td></tr>
</table>

http://plnkr.co/edit/zvX6bsqicS5flD7BXzzN

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