AngularJS 全局日期时区偏移 [英] AngularJS global Date timezone offset

问题描述

我希望显示相对于用户时区的日期.

I'm looking to show dates relative to the users' timezones.

我希望 Angular 有办法全局配置 Date 过滤器来做到这一点 - 必须根据具体情况手动执行此操作感觉是错误的.

My hope is that Angular has way to globally config the Date filter to do this—having to do this manually on a case-by-case basis feels wrong.

我的时间戳已经包含在 timestamp() 函数中(只需乘以 1000)，但如果我没有我不想修改该函数em> 到.

My timestamps are already wrapped in a timestamp() function (simply to multiply by 1000), but I'd prefer not to modify that function if I don't have to.

我正在这样做，并且有效，但如上所述，如果可能，我想将此级别设置得更高

I'm doing this, and it works, but as stated above, I'd like to set this one level higher if possible

$scope.timestamp = function (unix_time) {
    var epoch = (unix_time * 1000);
    var date = new Date();
    var localOffset = (-1) * date.getTimezoneOffset() * 60000;
    var stamp = Math.round(new Date(epoch + localOffset).getTime());
    return stamp;
};

推荐答案

因此，由于 angular 1.4.x 中的更改，这现在变得微不足道了.处理这个问题的正确方法是创建一个装饰器，在它运行之前改变内置的日期过滤器.这非常简单，并且不会对性能产生影响.

So, thanks to changes in angular 1.4.x this is now trivial. The proper way to handle this would be to create a decorator that alters the built in date filter before it runs. This is trivially easy, and won't have an impact on performance.

这是我用的.如果没有指定时区，它只会添加一个 DEFAULT_TIMEZONE.只要没有给出其他时区，这就会将应用中的所有日期移动到 GMT.

This is one I use. It simply adds a DEFAULT_TIMEZONE if no timezone is specified. This has the effect of moving all dates in the app to GMT as long as no other timezone is given.

module.config(['$provide', function($provide) {
     var DEFAULT_TIMEZONE = 'GMT';

     $provide.decorator('dateFilter', ['$delegate', '$injector', function($delegate, $injector) {
       var oldDelegate = $delegate;

       var standardDateFilterInterceptor = function(date, format, timezone) {
         if(angular.isUndefined(timezone)) {
           timezone = DEFAULT_TIMEZONE;
         }
         return oldDelegate.apply(this, [date, format, timezone]);
       };

       return standardDateFilterInterceptor;
     }]);
}]);

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