Repeating events can be utilized to constantly update the Angular date

Question

Repeating events can be utilized to constantly update the Angular date

Users have the ability to set an end date for a scheduled event, but I would like them to also have the option to specify how many times they want the event to repeat before it ends. For instance, if they choose to repeat weekly for 4 weeks, I need to be able to calculate and update the end date accordingly. As a newcomer to angular, I'm not exactly sure how to approach this challenge.

http://jsfiddle.net/rXHzc/

This is what I was thinking:

function EventEditCtrl($scope) {
    init();

    function init() {
        $scope.event = {
            ActiveEndTimeDate: '',
            Occurrences: '',
            Repeated: ''
        }
    }

    $scope.updateEndDate = function () {
        //update event?
    };
}

javascript angularjs

Answer 1

Answer №1

To figure out the end date and set it to the model, you need to do some calculations. The tricky part is dealing with date operations in JavaScript. One helpful tool for this task is momentjs, a library that simplifies date manipulation...

$scope.updateEndDate = function () {
    var endDate = moment().add($scope.event.Repeated, parseInt($scope.event.Occurrences));
    $scope.event.ActiveEndTimeDate = endDate.format('YYYY/MM/DD');
};

Check out the code on this JSFiddle link.

This method involves using ngChange to detect changes in form values and trigger the update accordingly. However, it requires adding ngChange to every possible change trigger, leading to excessive logic within the HTML markup. A more streamlined approach would be to respond to model changes.

One way to achieve this is by utilizing a watch statement...

$scope.$watch('[event.Repeated, event.Occurrences]', function () {
    var endDate = moment().add($scope.event.Repeated, parseInt($scope.event.Occurrences));
    $scope.event.ActiveEndTimeDate = endDate.format('YYYY/MM/DD');
});

View the example at: http://jsfiddle.net/c92ud/

Answer 2

To figure out the end date and set it to the model, you need to do some calculations. The tricky part is dealing with date operations in JavaScript. One helpful tool for this task is momentjs, a library that simplifies date manipulation...

$scope.updateEndDate = function () {
    var endDate = moment().add($scope.event.Repeated, parseInt($scope.event.Occurrences));
    $scope.event.ActiveEndTimeDate = endDate.format('YYYY/MM/DD');
};

Check out the code on this JSFiddle link.

This method involves using ngChange to detect changes in form values and trigger the update accordingly. However, it requires adding ngChange to every possible change trigger, leading to excessive logic within the HTML markup. A more streamlined approach would be to respond to model changes.

One way to achieve this is by utilizing a watch statement...

$scope.$watch('[event.Repeated, event.Occurrences]', function () {
    var endDate = moment().add($scope.event.Repeated, parseInt($scope.event.Occurrences));
    $scope.event.ActiveEndTimeDate = endDate.format('YYYY/MM/DD');
});

View the example at: http://jsfiddle.net/c92ud/

Repeating events can be utilized to constantly update the Angular date

Answer №1

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