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jcbutts's avatar
jcbutts
Helper I
6 years ago
Solved

Replace Column Headers with current dates

Hi,   I'm new to this:   I'm trying to replace column headers with the current week in one column and iterate from there.  For example, I have columns that say "week 1", "week 2", "week 3".....et...
Need Help
  • Jimmy801's avatar
    Jimmy801
    6 years ago

    Hello jcbutts 

     

    I recognized that I got you wrong. So week 1 is always the current week.

    I fixed this now. Check out this one if it works

    let
	Source = #table
	(
		{"week 1","week 2","week 3","other data","abc","week 52"},
		{
			{"","","","","",""}
		}
	),
    ColumnNames = Table.ColumnNames
    (
        Source
    ),
    TransformWeekInDate = List.Transform
    (
        ColumnNames,
        (row)=> try
        if Text.Contains(row,"week") or Text.Contains(row,"Week") then 
            Text.From(Date.AddDays(Date.AddDays( Date.From(DateTime.FixedLocalNow()), Date.DayOfWeek(DateTime.FixedLocalNow())*-1), (Number.From(Text.Replace(row, "week ", ""))-1)*7))
            else 
            row
        otherwise
        row
    ),
    RenameColumnHeader = Table.RenameColumns
    (
        Source,
        List.Zip({ColumnNames,TransformWeekInDate})
    )
in
	RenameColumnHeader

     

    Jimmy

Jimmy801's avatar
Jimmy801
Community Champion
6 years ago

Hello jcbutts 

 

this solution should be really dynamic and working for 2020. The column names have to be "week " and the number. 

let
	Source = #table
	(
		{"week 1","week 2","week 3","other data","abc","week 52"},
		{
			{"","","","","",""}
		}
	),
    ColumnNames = Table.ColumnNames
    (
        Source
    ),
    TransformWeekInDate = List.Transform
    (
        ColumnNames,
        (row)=> try
        if Text.Contains(row,"week") or Text.Contains(row,"Week") then 
            Text.From(Date.AddDays(#date(2019,12,30), (Number.From(Text.Replace(row, "week ", ""))-1)*7))
            else 
            row
        otherwise
        row
    ),
    RenameColumnHeader = Table.RenameColumns
    (
        Source,
        List.Zip({ColumnNames,TransformWeekInDate})
    )
in
	RenameColumnHeader

 

Copy paste this code to the advanced editor to see how the solution works. If this solution fits your need, copy and past a part of it and implement it in your query, or I could create a custom function what makes it easier to apply if you are not used that much to power query.

If this post helps or solves your problem, please mark it as solution (to help other users find useful content and to acknowledge the work of users that helped you)
Kudoes are nice too

Have fun

Jimmy