在 ng-repeat 中使用 orderBy 自定义订单 [英] Custom order using orderBy in ng-repeat

问题描述

我有这样的对象:

students = {name: 'Aa_Student', class: 'A_Class'},{名称:'Ab_Student'，班级:'A_Class'}，{名称:'Ac_Student'，班级:'B_Class'}，{名称:'Ba_Student'，班级:'B_Class'}，{名称:'Bb_Student'，班级:'C_Class'}，{名称:'Bc_Student'，班级:'C_Class'}

假设学生对象被洗牌.我使用 ng-repeat 来显示数据.我想按自定义顺序对对象进行排序.

例如，我想显示这样的数据:

 名称类-----------------------------Ac_Student B_ClassBa_Student B_ClassAa_Student A_ClassAb_Student A_ClassBb_Student C_ClassBc_Student C_Class

所以基本上，我想按学生的班级排序，但首先是B_Class，然后是A_Class，然后是C_Class.另外，我想按学生姓名按字母顺序排序.我该怎么做?

HTML:

<tr ng-repeat="student in student | orderBy:customOrder">...</tr>

控制器:

$scope.customOrder = function(student) {$scope.students = $filter('orderBy')(student, function() {});};

解决方案

您可以创建自定义排序过滤器，请参见此处 http://jsbin.com/lizesuli/1/edit

html:

 <p ng-repeat="s in student |customSorter:'class'">{{s.name}} - {{s.class}} </p>

angularjs 过滤器:

app.filter('customSorter', function() {功能自定义订单(项目){开关(项目){案例A_Class":返回2；案例'B_Class':返回 1；案例'C_Class':返回3；}}返回函数(项目，字段){var 过滤 = [];angular.forEach(项目，功能(项目){过滤.推(项目)；});过滤排序(函数(a，b){返回 (CustomOrder(a.class) > CustomOrder(b.class) ? 1 : -1);});返回过滤；};});

I have objects like this:

students = {name: 'Aa_Student', class: 'A_Class'},
           {name: 'Ab_Student', class: 'A_Class'},
           {name: 'Ac_Student', class: 'B_Class'},
           {name: 'Ba_Student', class: 'B_Class'},
           {name: 'Bb_Student', class: 'C_Class'},
           {name: 'Bc_Student', class: 'C_Class'}

Let's say the students object is shuffled. I use ng-repeat to show the data. I want to sort the objects in the custom order.

For example, I want to show the data like this:

  Name              Class
-----------------------------
Ac_Student         B_Class
Ba_Student         B_Class
Aa_Student         A_Class
Ab_Student         A_Class
Bb_Student         C_Class
Bc_Student         C_Class

So basically, I want to order by student's class, but it B_Class comes first, then A_Class, then C_Class. Also, I want to order by students name in alphabetic order. How can I do this?

HTML:

<table>
    <tr ng-repeat="student in students | orderBy:customOrder">
    ...
    </tr>
</table>

Controller:

$scope.customOrder = function(student) {
    $scope.students = $filter('orderBy')(student, function() {

    });
};

解决方案

Hi you can create custom sort filter please see here http://jsbin.com/lizesuli/1/edit

html:

  <p ng-repeat="s in students |customSorter:'class'">{{s.name}} - {{s.class}} </p>
      </div>

angularjs filter:

app.filter('customSorter', function() {

  function CustomOrder(item) {
    switch(item) {
      case 'A_Class':
        return 2;

      case 'B_Class':
        return 1;

      case 'C_Class':
        return 3;
    }  
  }

  return function(items, field) {
    var filtered = [];
    angular.forEach(items, function(item) {
      filtered.push(item);
    });
    filtered.sort(function (a, b) {    
      return (CustomOrder(a.class) > CustomOrder(b.class) ? 1 : -1);
    });
    return filtered;
  };
});

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