I've been given an excel document in which worktime information is noted, this document contains certain columns which are being read by using SSIS in visual studio, after that the information is writen to a Database.
The week and year column contain the week number and the year, the columns Monday up to Friday contain information about how many working hours have been spent on a certain task on that day of the week.
What I'd like to do is take the WeekNr, Year and Day and convert these into a date. I've been trying to accomplish this by using a script component that converts a day number, week number and year to a date but so far I haven't been able to get the day number from the columns. In my opinion it would work best if used with a start and end date taking the first and last date of that week.
So my question is if someone knows how to accomplish this, or if I should try a different approach.
The script component:
public override void Input0_ProcessInputRow(Input0Buffer Row, CultureInfo cultureInfo, int day )
{
DateTime firstDayOfYear = new DateTime(Int32.Parse(Row.Jaar), 1, 1);
int firstWeek = cultureInfo.Calendar.GetWeekOfYear(firstDayOfYear, cultureInfo.DateTimeFormat.CalendarWeekRule, cultureInfo.DateTimeFormat.FirstDayOfWeek);
int dayOffSet = day - (int)cultureInfo.DateTimeFormat.FirstDayOfWeek + 1;
Row.TaskDates = firstDayOfYear.AddDays((Int32.Parse(Row.Week) - (firstWeek + 1)) * 7 + dayOffSet + 1);
}
Based on this answer, I think you want something like the following. This result gives you Monday's date, so you can just AddDays based on the column day of the week.
DateTime jan1 = new DateTime(Int32.Parse(Row.Jaar), 1, 1);
int daysOffset = DayOfWeek.Monday - jan1.DayOfWeek;
DateTime firstMonday = jan1.AddDays(daysOffset);
var cal = CultureInfo.CurrentCulture.Calendar;
int firstWeek = cal.GetWeekOfYear(firstMonday, CalendarWeekRule.FirstFullWeek, DayOfWeek.Monday);
var weekNum = Int32.Parse(Row.Week);
if (firstWeek <= 1)
{
weekNum -= 1;
}
var mondaysDate = firstMonday.AddDays(weekNum * 7);
var tuesdaysDate = mondaysDate.AddDays(1);
Related
I am having a weird issue when I was reading dates from excel files in a react application. When I read it, it comes out as some form of float but what's weird is that it only does this for 1th to 12th date of the month from 13th till 31th is fine.
What I mean is that a date like 01-01-81 gets converted to 29587.00013888889
but 13-01-81 remains in its original.
I found this one solution from here How to read date from an excel file in JavaScript. But it does not give back the original value.
Really appreciate any kind of help. Cheers.
The problem was that excel has its own way for dates and we need to convert it, into the format we need.
This is the method I used
const ExcelDateToJSDate = (date) => {
let converted_date = new Date(Math.round((date - 25569) * 864e5));
converted_date = String(converted_date).slice(4, 15)
date = converted_date.split(" ")
let day = date[1];
let month = date[0];
month = "JanFebMarAprMayJunJulAugSepOctNovDec".indexOf(month) / 3 + 1
if (month.toString().length <= 1)
month = '0' + month
let year = date[2];
return String(day + '-' + month + '-' + year.slice(2, 4))
}
You can simply pass the excel date and change the function according to the date format you need.
I'm using ionic framework.Is there a way to dynamically get the start and end date of the week when user selects a random date.
Based on this answer I've made a configuration based on your needs. The code is in vanilla js but you can easily translate it to angular code, since functionality is the same.
The function to find the first and last day of the week, based on user selected date:
function getFirstLastDayOfWeek(userDate) {
let result = {};
let curr = new Date(userDate); // get current date
let first = curr.getDate() - curr.getDay(); // First day is the day of the month - the day of the week
let last = first + 6; // last day is the first day + 6
result = {
firstDay:new Date(curr.setDate(first)).toUTCString(),
lastDay:new Date(curr.setDate(last)).toUTCString()
};
return result;
};
And here's a working fiddle.
var days=new Date().getWeek();
console.log(days[0].toLocaleDateString() + ' to '+ days[1].toLocaleDateString())
Dynamic date
var days=new Date("10/01/2017").getWeek();
console.log(days[0].toLocaleDateString() + ' to '+ days[1].toLocaleDateString())
Please mention your ionic version.
Using moment.js would solve your problem easily.
Lets say you have a random date with you and wants to find start of week.
moment(<randomDate>).startOf('isoWeek');
End of the week
moment(<randomDate>).endOf('isoWeek');
Hi I am using Salesforce Apex,
I have a date as String as below. I need to add days to it using Apex.
String dateTime = '2017-07-08T23:59:59Z';
If I add one day to it then it should be 2017-07-09T23:59:59Z as string. How will I do this?
Thanks!
Beware the DST issue! The "addDays" function is not DST-aware, so if you step over a DST transition during the addition of days (in a time zone that has DST) then the time will be messed up.
To resolve this one split the date/time into separate date and time parts first, add the days to the date part then re-combine at the end, like:
DateTime dt = ...;
Integer days = ...;
Date d = dt.date().addDays(days);
Time t = dt.time();
dt = DateTime.newInstance(d, t);
If you are working in the UK (London) time zone the following anonymous Apex illustrates the issue nicely:
DateTime dt = DateTime.newInstance(2017, 10, 28, 23, 59, 59);
System.debug('Adding days directly: ' + dt.addDays(2));
Date d = dt.date().addDays(2);
Time t = dt.time();
dt = DateTime.newInstance(d, t);
System.debug('Adding days in parts: ' + dt);
You need to convert the string to a DateTime and then add days. You can format it back after
String stringDateTime = '2017-07-08T23:59:59Z';
DateTime dt = DateTime.valueOfGmt(stringDateTime);
DateTime tomorrow = dt.addDays(1);
DateTime nextMonth = dt.addMonths(1);
DateTime anniversary = dt.addYears(1);
String formattedDateTime = dt.format('yyyy-MM-dd\'T\'HH:mm:ss\'Z\'');
I want to calculate date difference between two dates with angular js. I used this code:
$scope.formatString = function(format) {
var year = parseInt(format.substring(0,5));
var month = parseInt(format.substring(6,8));
var day = parseInt(format.substring(9,10));
var date = new Date(year, month-1, day);
return date;
}
$scope.dayDiff = function(fromdate,todate){
var date2 = new Date($scope.formatString(fromdate));
var date1 = new Date($scope.formatString(todate));
var timeDiff = Math.abs(date2.getTime() - date1.getTime());
var diffDays = Math.ceil(timeDiff / (1000 * 3600 * 24));
return diffDays;
}
But it is right for within same month but it can't do right calculation between two dates in different months.
For example date1 = 2016.2.12, date2 = 2016.2.18 (Ok)
For example date1 = 2016.2.12, date2 = 2016.3.1 (It is not right)
Why not try using the String split function (docs) to parse your date, split will produce an array of the year, month, and day in that order based on the format you're inputting. From there you can reference the array pieces by index, a bit easier than trying to get your substring offsets lined up correctly:
$scope.formatString = function(format) {
var pieces = format.split('.'),
year = parseInt(pieces[0]),
month = parseInt(pieces[1]),
day = parseInt(pieces[2]),
date = new Date(year, month - 1, day);
return date;
}
Take a look at this working example: http://plnkr.co/edit/GgXjqA76IX5bzQEP56ux?p=preview
It is better to use a ready-made library. Because you do not know that in the future you will still need to work with dates. I recommend sugarjs.
The difference between the dates can be found in the following manner.
Date.range('2012.01.01', '2013.01.01').every('days').length
i have an object which has 2 dates startdate_c and enddate_c .
i need to find a way to find the days of week these dates fall in
For example
startdate = 1 jun 2012 and enddate = 3 jun2012
I need to know which days of the week the days between these dates fall in.
In this example
Mon = false, tue = false, wed = false, thu=false, fri=true,sat=true,sun=true
I want to use this in a Vf page to render the somefields based on the boolean value.
Any pointers would be of great help.
Date has a method called toStartOfWeek which you could leverage, assuming your two dates do lie within the same week you could simply do something like this:
date weekStart = startdate.toStartOfWeek();
list<boolean> days = new list<boolean>();
for(integer i = 0; i < 7; i++)
{
days.add(weekStart.addDays(i) >= startdate && weekStart.addDays(i) <= enddate);
}
A little bit crude, but it'll give you an array of 7 boolean values. For longer/unknown ranges you could use a date cursor and increment that instead of an integer here, but this should get you started. Note, I've not tested this code ;)