Add Days Google Script - date

I wondered if anyone could help. I have a script where I am pulling out data from a spreadsheet list, where this is a match for this week (basically an events list, to produce a weekly agenda). I will use a for loop to increment the days to add on, but I am just trying to make it work for one day for now...
The first column is the data in format dd/mm/yyy
I am trying to take today's increment by 1 and then search through the list to find a match. The searching etc, I can make work, but the date part is just not playing. I wondered if anyone could advise.
E.g. Date Column A:
06/07/2021
06/07/2021
01/11/2021
01/11/2021
01/11/2021
01/11/2021
02/09/2021
02/09/2021
var selectedDate = row[0];
selectedDate = Utilities.formatDate(new Date(selectedDate), "GMT+1", "dd/MM/yyyy");
var currdate = new Date();
currdate = Utilities.formatDate(new Date(selectedDate), "GMT+1", "dd/MM/yyyy");
var daystochange = 1;
var newdate = new Date(currdate.getFullYear, currdate.getMonth, currdate.getDay+daystochange );
Could anyone help?
Thanks

Only use Utilities.formatDate() to output dates, not to work with dates.
The JavaScript date object has all you need to work with dates and compare. When you use the Utilities function it converts it to a string, and so you lose all the functionality of the Date object.
Also bear in mind that if you have dates, that are formatted as dates in your sheet, they will automatically be returned as Date objects.
For example, if your sheet has a date in cell A1
var date = Sheet.getRange("A1").getValue()
date instanceof Date // true
Once you have your date, if you want to add one day to it, you can take an approach similar to what you have already done:
var selectedDate = new Date(2021, 1, 15)
var newdate = new Date(selectedDate.getFullYear(), selectedDate.getMonth(), selectedDate.getDate() + 1);
console.log(newdate) // Tue Feb 02 2021 00:00:00
Note - use getDate to return the day of the month, getDay only returns day of the week.
To check if two dates are the same, you can write a function to compare:
function isSameDate(a, b) {
return a instanceof Date &&
b instanceof Date &&
a.getYear() === b.getYear() &&
a.getMonth() === b.getMonth() &&
a.getDate() === b.getDate()
}
This function will return true if the dates are the same.
Reference
Date

Related

TemporalDate from DateTime - Flutter

I am using AWS amplify for my project and trying to save the selected date from datepicker to the model.
DatePicker is giving the date in DateTime object, when i try to convert it to TemporalDate its giving me a day before date. i.e if i select todays date and assigning it to the TemporalDate then i am getting yesterday's date.
Here is my code :
var d1 = TemporalDate(pickedDate);
var d4 = TemporalDate(pickedDate.toUtc());
var d2 = TemporalDate(pickedDate.toLocal());
var d3 = TemporalDate(pickedDate).getDateTime();
pickedDate is holding today's date but the d1,d2,d3,d4 all is having yesterday's date.
Expected result is to get the today's date in the TemporalDate variable.
You need to parse the date. It is showing a day before because it is on the universal date. So you just need to convert the universal date to local date.
var dateTime = DateFormat("yyyy-MM-dd HH:mm:ss").parse(selectedDate.toString(), true);
var dateLocal = dateTime.toLocal();

Auto-populate today's date if no date entered

I currently have a start date in cell C1 and end date in C2 of a Google Sheet spreadsheet. I would like to set it up so that if no date is entered in the end date (C2), this cell will be auto-populated with today's date
I have thus far found the following script
function onFormSubmit(e) {
//edit responses sheet name
var responseSheetName = 'Stats';
//Edit colmn number, column in which the date has to be autopopulated
var column = 3;
//Get target row number
var row = e.range.rowStart;
//If no date, pouplate the cell with current date
if(!e.values[column-1]){
SpreadsheetApp.getActive().getSheetByName(responseSheetName).getRange(row, column).setValue(new Date())
}
}
This doesn't seem to be doing the trick so either I am reading it wrong, it is not what I am looking for!
Is this something that is possible?

How to create a specific date in Google Script

I have a spreadsheet that asks people to enter in a day of the month when we need to send out a bill. What I want to do is create a calendar event based on that. So, essentially what I need is an event that starts at the current month, day from the spreadsheet, and continues to a specified point in time.
var monthlyDate = row[6]; // Seventh column, monthly date of payment
var curDate = new Date();
var curMonth = curDate.getMonth();
var curYear = curDate.getYear();
curDate.setDate(curMonth, monthlyDate, curYear);
Logger.log("Day of month: %s", monthlyDate);
Logger.log("Current Date: %s", curDate);
Logger.log("Current Date: %s", Date());
What I'm seeing is that the monthly date is coming in as a float "6.0" for example, and no matter what I enter in for monthlyDate in the setDate line, it keeps setting the date to 10/9/15 (Today is 10/15/15). I've hard-coded that value to many different numbers, but for some reason it's just not working.
How can I create a date (in any format) that follows the scheme "Current Month / Day from Speadsheet / Current Year" ?
The getMonth() method returns a "zero-indexed" number. So, it returns the number 9 for the 10th month. setDate() doesn't set the date, it sets the "Day of the Month". The name of that method is misleading.
Documentation - setDate()
So, the last two parameters that you are using in setDate() are doing nothing. You are setting the day of the month to 9.
If you want to set multiple date parameters at the same time, you need to use the new Date() method:
var d = new Date(year, month, day, hours, minutes, seconds, milliseconds);
The month parameter accept values from 0 to 11, 0 is Jan and 11 is Dec
Date Reference

Date query with the current date between two date_time columns

I have a fusion table with two date_time columns. The fist one is the start date (Startdatum) and in the other column is the end date (Einddatum).
I want to do a query with the current date, and only show the KML-lines on a map where the current date lies between the start and end date.
I tried to use the code below to create a string with a date format:
var time_date = new Date();
var day = time_date.getDate();
var month = time_date.getMonth()+1;
var year = time_date.getFullYear();
var date = (year+"."+month+"."+day);
To show the KML-lines on the map I tried to use the following code:
layer = new google.maps.FusionTablesLayer({
map: map,
heatmap: { enabled: false },
query: {
select: "col2",
from: "1mOMP1seJq4FdiNTugsfylZaJc8sKcSlfJKUuTJjv",
where: "'Startdatum' <= date AND 'Einddatum' >= date"
},
options: {
styleId: 2,
templateId: 2
}
});
Unfortunatly the map shows all the KMS-lines regardless what date is in one of the columns.
What am I doing wrong?
the where-clause is wrong, it has to be
where: "Startdatum <= '"+date+"' AND Einddatum >= '"+date+"'"
the date-format seems to be wrong. Although the used format yyyy.MM.dd is defined in the documentation, it doesn't work. The format yyyy-MM-dd currently works for me(but it's not defined in the documentation).
var date = (year+"-"+month+"-"+day);
(in case that day and month be less than 10 they wouldn't match the pattern, but that doesn't seem to be an issue)
Beyond that: when you fix these 2 mentioned parts it currently works(for me), but I've tried it a couple of hours ago and got unstable results.

using datetime object as an argument

I have been struggling to understand how to use datetime objects. I want to use datetime.date instances as keys in a dictionary. I then want to be able to return dates within specified ranges using datetime.delta.
My first conundrum is when I create an object to be entered into the dictionary.
class Work_day():
'''input a workday , date and hours worked'''
def __init__(self, date, hours, rate):
self.date = datetime.date()
self.hours = hours
self.rate = rate
I want self.date to be a datetime.date object but datetime.date takes 3 argument (year, month, day) so what is the correct syntax for the def_init_ argument 'date'?
Then I assume when I change how that is written in the Work_day class then I will have to modify my code when I create instances of it in the Timesheet class e.g. in add_work_day() method
class Timesheet():
'''Represent a collection of workdays'''
def __init__(self):
self.timesheet = {}
def add_work_day(self, date, hours,rate):
'''adds a record of a work day into the timesheet dictionary'''
day = Work_day(date, hours, rate)
if day.date in self.timesheet:
print("There is already an entry for this day. ")
else:
self.timesheet[day.date] = hours, rate
I've been researching the python docs and scouring books but I'm not getting it! Need some help.
I also have a method that prints a range of the workdays in the timesheet. I made it work when I subbed the date key for a simple int. here it is (in ''' ''') with a shonky attempt at a datetime delta underneath
def show_days(self):
'''shows a user defined range of dates and the total pay for that period'''
pp = pprint.PrettyPrinter()
date_from = input("From date: ")
date_to = input("To date: ")
t = self.timesheet
total = 0
'''for dates in range(date_from, date_to + 1):
if dates in t:
total += self.sum_day(dates)
pp.pprint((dates, t[dates)])
print("Total £", total)'''
date = date_start = datetime.date(date_from)
date_end = datetime.date(date_to)
while date <= date_end:
if date in t:
print(date, t[dates])
date += datetime.timedelta(days=1)
I hope someone can find the patience to talk me through this. Cheers.
If you assign the date with self.date = datetime.date(*date), then you can create a Work_day by passing a (year,month,day) tuple:
day = Work_day((2013,5,31), 8.0, 8.25)
Alternatively, if you want the input to be a date string, use datetime.strptime, an appropriate formatting string, and the date() method to get a date object:
self.date = datetime.datetime.strptime(date,'%m/%d/%Y').date()
...
date = Work_day('5/31/2013', 8.0, 8.25)
Finally, you could just pass a date object:
day = Work_day(datetime.date(2013,5,31), 8.0, 8.25)
...
self.date = date
The Timesheet class should work after any of these changes. show_days still needs some work, but I'll leave that as an exercise. Hint: Parse the input dates with strptime.