javascript - AngularJS:具有不同属性的数组数组中的 ngIf

Question

我的对象:

objects = [
{
    name: "1",
    foo: [{
      value: 0.5,
      ignored: null,
      text: "foo1"
    }, {
      value: 0,
      ignored: null,
      text: "foo"
    }]
},
{
    name: "2",
    foo: [{
      value: 0,
      ignored: null,
      text: "foo"
    }, {
      value: 0.5,
      ignored: null,
      text: "foo2"
    }]
},
{
    name: "3",
    foo: [{
      value: 0.5,
      ignored: null,
      text: "foo3"
    }]
},
{
    name: "4",
    foo: [{
      value: 0,
      ignored: 1,
      text: "foo4"
    }]
},
{
    name: "5",
    foo: [{
      value: 0,
      ignored: null,
      text: "foo5"
    }]
}]

我的 AngularJs 模板 html:

<div class="row" ng-repeat="object in objects">
  {{ object.name }}
  <div ng-repeat="foo in object.foo">
    <div ng-if="foo.value > 0 || foo.ignored == 1">
      {{ foo.text }}
    </div>
  </div>
</div>

我的结果是:

1 foo1
2 foo2
3 foo3
4 foo4
5

但我不想显示案例 N°5 的 object.name。

如何在第一个ng-repeat中使用第二个ng-repeat和ng-if？

<div class="row" ng-repeat="object in objects" ng-if="...???...">
  {{ object.name }}
  any text !!
</div>

Answer 1

您可以在ng-if中使用过滤函数。

更改的模板:

<div class="row" ng-repeat="object in objects" ng-if="myFilter(object)">
  {{ object.name }}
  <div ng-repeat="foo in object.foo">
    <div ng-if="foo.value > 0 || foo.ignored == 1">
      {{ foo.text }}
    </div>
  </div>
</div>

Controller 中的过滤功能:

$scope.myFilter = function(o) {
  // Returns a truthy value if the foo-subarray meets the criteria.
  var found = o.foo.find(function(fooElement) {
    return fooElement.value > 0 || fooElement.ignored == 1;
  });
  return found;
};

结果:

1
foo1
2
foo2
3
foo3
4
foo4