date comparison for posted time (like "posted 5 minutes ago")

How-to Discussions
#1

Im making an app that users can post stuff and i need to display a date on the post.

When a user makes a post, the database creates a value for createdAt like this: “2015-06-11T17:53:54.781Z”

I managed to get each part of the date, but now, with the new Uno.Time, i cant create a new date with those values.

Cutting to the point, i need to compare the createdAt date with the Time.Now and display a text saying “5 mins ago” and if it more than a week ago, display the date.

how i can do that?

#2

What do you mean you can’t create a new date? What exactly is the problem?

Were you able to do this with the old DateTime class, and if so, how?

#3

Future sneak-peek: In the JavaScript layer coming up, there will be plenty of JS libraries that can be used for this. :slight_smile:

#4

You could use parser for OffsetDateTime. It does not support milliseconds yet.

There is Period.Between method for calculating date difference.

var result = OffsetDateTimePattern.GeneralIsoPattern.Parse("2015-06-11T17:53:54Z");

if (result.Success)
{
    var period = Period.Between(result.Value.LocalDateTime, ZonedDateTime.Now.LocalDateTime);
    debug_log(period); // P6DT22H35M28S773s4842t
    if (period.HasDateComponent)
    {
        // period has non-zero Years, Months, Weeks or Days
    }
    else
    {
        // period has non-zero Hours, Minutes, Seconds or Milliseconds
    }
}
#5

thanks for all the replies.

i will post the code when i finish it

{

string dateString="";

var PostedDate = PostedDateStr.Split('T');

var FechaPosted = PostedDate[0].Split('-');

var TimePosted = PostedDate[1].Split(':');

var secsplit = TimePosted[2].Split('.');

TimePosted[2] = secsplit[0];

int dateAno;

int dateMes;

int dateDia;

int dateHora;

int dateMins;

int dateSecs;

int dateMills;

Int.TryParse(FechaPosted[0], out dateAno);

Int.TryParse(FechaPosted[1], out dateMes);

Int.TryParse(FechaPosted[2], out dateDia);

Int.TryParse(TimePosted[0], out dateHora);

Int.TryParse(TimePosted[1], out dateMins);

Int.TryParse(TimePosted[2], out dateSecs);

Int.TryParse(secsplit[1], out dateMills);

var datePosted = new LocalDateTime(dateAno,dateMes,dateDia,dateHora,dateMins,dateSecs);

var dateNow = ZonedDateTime.Now.ToInstant().InUtc().LocalDateTime;

var period = Period.Between(datePosted, dateNow);


if(period.Seconds>0){


    string prural="seconds";

    if(period.Seconds==1){
        prural="second";

    }
    dateString = period.Seconds+" "+prural;

}
if(period.Minutes>0){

    string prural="Minutes";
    if(period.Minutes==1){

        prural="Minute";
    }

    dateString = period.Minutes+" "+prural;
}

if(period.Hours>0){
    string prural="hours";

    if(period.Hours==1){
        prural="hour";

    }
    dateString = period.Hours+" "+prural;

}
if(period.Days>0){

    string prural="days";
    if(period.Days==1){

        prural="day";
    }

    dateString = period.Days+" "+prural;
}

if(period.Months>0){
    string prural="months";

    if(period.Months==1){
        prural="month";

    }
    dateString = period.Months+" "+prural;

}
if(period.Years>0){

    string prural="years";
    if(period.Years==1){

        prural="year";
    }

    dateString = period.Years+" "+prural;
}

HoraMovie.Content = dateString;

}