如何在 angularjs 中的选择框选项内进行 ng-translate [英] How to ng-translate inside select box option in angularjs

问题描述

如何应用 ng-translate 来翻译选择框内的选项.
例如:

How do I apply ng-translate to translate options inside a select box.
For example:

模板:

<select class="form-control" ng-model="me.gender" ng-options="gender.name for gender in genders">
</select>

控制器:

$scope.genders = [{code: "M", name:"TXT_MALE"}, {code: "F", name:"TXT_FEMALE"}]

enUS.json:

{
    "TXT_MALE": "Male",
    "TXT_FEMALE": "Female",
}

我尝试添加过滤器，例如 ng-options="gender.name 用于性别中的性别 | 翻译"但显然它是向 $scope.genders 数组而不是单个元素添加过滤器

I tried adding filter like ng-options="gender.name for gender in genders | translate" but obviously it was adding filter to $scope.genders array instead of single element

我尝试编写自己的过滤器(我是新手)

I tried writing own filter (I am new to this)

filter('translateArrayObj', ['$translate', '_', function($translate, _) {
  return function(arr) {
    var arr2 = [];
    angular.forEach(arr, function (value, key) {
      $translate(value.name).then(function(translation) {
        var obj2 = angular.copy(value);
        obj2.name = translation;
        obj2.code = value.code;
        arr2.push(obj2);
      });
    });
    return arr2;
  }
}])

但是我遇到了以下错误

Error: [$rootScope:infdig] 10 $digest() iterations reached. Aborting!

看似简单的任务，却花了我半天时间，我到底做错了什么:(

推荐答案

您需要将过滤器应用于 gender.name 而不是 genders 数组:

You need to apply the filter to gender.name and not to the genders array:

<select ng-model="me.gender" ng-options="gender.name | translate for gender in genders"></select>

这是一个演示

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