javascript - 根据条件启用日期

Question

我正在开发 angularjs 应用程序。我有两个日期字段，要求是当用户在“可用日期”日历中选择日期时，“到期日期”字段应启用，并且用户应该能够选择所选日期后 24 天内的日期在可用日期字段中。例如，当用户在可用日期字段中选择日期为 2017-03-02 时，应启用过期日期字段，并且日历应仅启用 2017-03-02 后的 24 天(即 2017-03-25)以及所有日期应禁用，以便用户无法选择 2017-03-25 之后或 2017-03-02 之前的任何日期。请查看演示here

js代码:

myApp.controller("myController", ["$scope",
    function($scope) {
        var today = new Date();
        $scope.AvailableDate = new Date();
        $scope.ExpireDate = new Date();
        $scope.dateFormat = 'yyyy-MM-dd';
        $scope.availableDateOptions = {
            formatYear: 'yy',
            startingDay: 1,
            minDate: "2016-03-12",
            maxDate: today
        };
        $scope.expireDateOptions = {
            formatYear: 'yy',
            startingDay: 1,
            minDate: today,
            maxDate: "2017-06-12"
        };
        $scope.availableDatePopup = {
            opened: false
        };
        $scope.expireDatePopup = {
            opened: false
        };
        $scope.ChangeExpiryMinDate = function(availableDate) {
            if (availableDate != null) {
                var expiryMinDate = new Date(availableDate);
                $scope.expireDateOptions.minDate = expiryMinDate;
                $scope.ExpireDate = expiryMinDate;
                //code to set maxDates in Expire Date field -start
                 var date = new Date(expiryMinDate);
                 var newdate = new Date(date);
                 newdate.setDate(newdate.getDate() + 3);
                 var dd = newdate.getDate();
                 var mm = newdate.getMonth() + 1;
                 var y = newdate.getFullYear();
                  var someFormattedDate = y + '/' + dd + '/' + mm;
                  $scope.expireDateOptions.maxDate = someFormattedDate;
                //code to set maxDates in Expire Date field -end
            }
        };
        $scope.ChangeExpiryMinDate();
        $scope.OpenAvailableDate = function() {
            $scope.availableDatePopup.opened = !$scope.availableDatePopup.opened;
        };
        $scope.OpenExpireDate = function() {
            $scope.expireDatePopup.opened = !$scope.expireDatePopup.opened;
        };
    }
]);

下面是我尝试过但没有成功的代码。

 var date = new Date(expiryMinDate);
                     var newdate = new Date(date);
                     newdate.setDate(newdate.getDate() + 3);
                     var dd = newdate.getDate();
                     var mm = newdate.getMonth() + 1;
                     var y = newdate.getFullYear();
                      var someFormattedDate = y + '/' + dd + '/' + mm;
                      $scope.expireDateOptions.maxDate = someFormattedDate;

Answer 1

根据您的要求，我使用以下方法来保留 minDate 和 maxDate 设置:

$scope.ChangeExpiryMinDate = function(availableDate) {
        if (availableDate != null) {
            var availableDate = new Date(availableDate);
            var expiryMinDate = angular.copy(availableDate);
            expiryMinDate.setDate(expiryMinDate.getDate() + 23);

            $scope.ExpireDate = availableDate;
            $scope.expireDateOptions.minDate = availableDate;
            $scope.expireDateOptions.maxDate = expiryMinDate;
        } else {
            delete $scope.ExpireDate;
        }
    };

$scope.ChangeExpiryMinDate($scope.AvailableDate);

您忘记将当前的可用日期传递到函数中，因此当 Controller 首次加载时，到期日期字段已经受到限制。

要禁用周末，您可以更新 ExpiryDate 选项:

$scope.expireDateOptions = {
    formatYear: 'yy',
    startingDay: 1,
    minDate: today,
    maxDate: "2017-06-12",
    dateDisabled: function(data) {
        var date = data.date;
        var mode = data.mode;
        return (mode === 'day' && ( date.getDay() === 0 || date.getDay() === 6 ));
    }
};

我在这里创建了一个工作 JSFiddle:https://jsfiddle.net/1ahyk735/