Hello. I am trying to convert a text field to a duration, but my data comes in like this: I'd prefer to do this in Power Query Editor (M), rather than a calculated column (DAX). Can anyone help? Thanks!

Convert Text Duration to Type Duration | Microsoft Fabric Community

8 Replies

Community Champion

A generic solution regardless of single/plural forms or lower/upper cases

let
    RE = (regex as text, str as text) =>
    let
        html = "<script>var regex = " & regex & "; var str = """ & str & """; var res = str.match(regex); document.write(res)</script>",
        res = Web.Page(html)[Data]{0}[Children]{0}[Children]{1}[Text]{0}
    in res,

    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("VYyxDkAwFEV/5aazwWtV2Q0Wk1E6CBIGJMrg71FN6XrPuadpGKFoT2Qo12MzEDGqaTn2wYBLmKFbl94wHd2e8CRJAyI/oFD/gHBRqbyRh00rQCjMjlMSCLk/Eg/SnGO0bXLzu6Jvz2ezWXJVpvUF", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Text_Dur = _t]),
    RegEx = Table.AddColumn(Source, "Num_Dur", each RE("/\d+ [A-Z]/gi", [Text_Dur])),
    #"Converted Duration" = Table.TransformColumns(RegEx, {"Num_Dur", each let pair = List.Zip(List.Transform(Text.Split(_, ","), each Text.Split(_, " "))), rd = Record.FromList(List.Transform(pair{0}, Number.From), List.Transform(pair{1}, Text.Upper)) in #duration(Record.FieldOrDefault(rd, "D", 0), Record.FieldOrDefault(rd, "H", 0), Record.FieldOrDefault(rd, "M", 0), Record.FieldOrDefault(rd, "S", 0)), type duration})
in
    #"Converted Duration"

Jakinta

Solution Sage

4 years ago

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjFV8M3MKy1JVTA0UghOTc7PS1GK1YlWMlLwyC8tUjCHyZoiSxoquCRWKhgZwSXNkGVNIVqNkcXMwToMITJwO6HKQVLGBnCxWAA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [TextDuration = _t]),
    #"Added Custom" = Table.AddColumn(Source, "Duration", each let l=Text.Split([TextDuration], " "), d=List.PositionOf(l,"Day")-1, h=List.PositionOf(l,"Hour")-1, m=List.PositionOf(l,"Minute")-1,s=List.PositionOf(l,"Second")-1, x=List.Transform( {d,h,m,s}, each try Number.From(l{_}) otherwise 0) in #duration ( x{0}, x{1}, x{2}, x{3}), type duration )
in
    #"Added Custom"

Anonymous
Not applicable
4 years ago
Thanks everyone!! Unfortunetly, I couldn't get the M solutions to work, but that is probably just user error. I did get the DAX solution provided by Greg_Deckler to work (although I did modify it a little to convert the duration to hours).

Thanks again!

Greg_Deckler

Community Champion

4 years ago

Anonymous Ah well, couple folks beat me to the fun. I personally like Jakinta's solution mainly because it doesn't use regex which is like, why is that still a thing? Honestly though, CNENFRNL it is pretty cool that you can use regex in Power Query it's just I thought regex went the way of Perl and that everyone was happy about that fact.

Anyway, not to be outdone and left with a hacky DAX solution, I created one that is just as functional and flexible as the elegant solutions by Jakinta and CNENFRNL:

Duration = 
    VAR __Separator = " "
    VAR __SearchText = MAX('Table'[Text Duration])
    VAR __Len = LEN(__SearchText)
    VAR __Count = __Len - LEN(SUBSTITUTE(__SearchText,__Separator,"")) + 1
    VAR __Table = 
        ADDCOLUMNS(
            ADDCOLUMNS(
                GENERATESERIES(1,__Count,1),
                "__Word",
                    VAR __Text = SUBSTITUTE(__SearchText,__Separator,"|",IF([Value]=1,1,[Value]-1))
                    VAR __Start =
                        SWITCH(TRUE(),
                            __Count = 1,1,
                            [Value] = 1,1,
                            FIND("|",__Text)+1
                        )
                    VAR __End = 
                        SWITCH(TRUE(),
                            __Count = 1,__Len,
                            [Value] = 1,FIND("|",__Text) - 1,
                            [Value] = __Count,__Len,
                            FIND(__Separator,__Text,__Start)-1
                        )
                    VAR __Word = MID(__Text,__Start,__End - __Start + 1)
                RETURN __Word
            ),
            "__Key",
                SWITCH(TRUE(),
                    SEARCH("day",[__Word],,0)>0,"day",
                    SEARCH("hour",[__Word],,0)>0,"hour",
                    SEARCH("minute",[__Word],,0)>0,"minute",
                    SEARCH("second",[__Word],,0)>0,"second",
                    BLANK()
                )
        )
    VAR __Days = MAXX(FILTER(__Table,[Value] = MAXX(FILTER(__Table,[__Key]="day"),[Value]) - 1),[__Word])+0
    VAR __Hours = MAXX(FILTER(__Table,[Value] = MAXX(FILTER(__Table,[__Key]="hour"),[Value]) - 1),[__Word])+0
    VAR __Minutes = MAXX(FILTER(__Table,[Value] = MAXX(FILTER(__Table,[__Key]="minute"),[Value]) - 1),[__Word])+0
    VAR __Seconds = MAXX(FILTER(__Table,[Value] = MAXX(FILTER(__Table,[__Key]="second"),[Value]) - 1),[__Word])+0
RETURN
    __Days * 1000000 + __Hours * 10000 + __Minutes * 100 + __Seconds

Most of the code is just Text to Table, which I should have thought about to begin with. And posted to the gallery here: Text Duration Conversion - Microsoft Power BI Community

Greg_Deckler

Community Champion

4 years ago

Anonymous I realize this is DAX but you should be able to use the same pattern replacing the DAX functions with equivalent Power Query functions. I will work on the conversion if I find the time. Also, could you paste that data as text?

Column = 
    VAR __Duration = [Ticket Duration]
    VAR __DayLocation = SEARCH("day",__Duration,,0)
    VAR __HourLocation = SEARCH("hour",__Duration,,0)
    VAR __MinuteLocation = SEARCH("minute",__Duration,,0)
    VAR __Days = IF(__DayLocation,VALUE(LEFT(__Duration,__DayLocation - 1)),0)
    VAR __DaySeparator = IF(__DayLocation<>0,SEARCH(" ",__Duration,__DayLocation,0),1)
    VAR __HourSeparator = 
        SWITCH(TRUE(),
            __DayLocation<>0,SEARCH(" ",__Duration,__DaySeparator+1,1),
            __HourLocation=0,1,
            SEARCH(" ",__Duration)
        )
    VAR __Hours = IF(__HourLocation=0,0,VALUE(MID(__Duration,__DaySeparator,__HourSeparator - __DaySeparator + 1)))
    VAR __MinuteSeparator = IF(__HourSeparator=1,1,SEARCH(" ",__Duration,__HourSeparator+1,0))
    VAR __LastSeparator = SEARCH(" ",__Duration,__MinuteSeparator+1,0)
    VAR __Minutes = VALUE(MID(__Duration,__MinuteSeparator,__LastSeparator - __MinuteSeparator + 1))
RETURN
    __Days * 24 + __Hours + __Minutes/100

Also, this was for day, hour and minute but not seconds so there will need to be some adjustments.

Anonymous
Not applicable
4 years ago
Hi Greg_Deckler, thanks for your help. I'll await your response. As requested, a sample in text format:

1 Day 8 Hours 30 Minutes 25 seconds
13 Minutes 46 seconds
5 Minutes 47 seconds
3 Hours 57 Minutes 9 seconds
1 Hour 37 Minutes 14 seconds
9 Minutes 12 seconds

Syndicate_Admin

Administrator

4 years ago

A generic solution regardless of single/plural forms or lower/upper cases

let
    RE = (regex as text, str as text) =>
    let
        html = "<script>var regex = " & regex & "; var str = """ & str & """; var res = str.match(regex); document.write(res)</script>",
        res = Web.Page(html)[Data]{0}[Children]{0}[Children]{1}[Text]{0}
    in res,

    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("VYyxDkAwFEV/5aazwWtV2Q0Wk1E6CBIGJMrg71FN6XrPuadpGKFoT2Qo12MzEDGqaTn2wYBLmKFbl94wHd2e8CRJAyI/oFD/gHBRqbyRh00rQCjMjlMSCLk/Eg/SnGO0bXLzu6Jvz2ezWXJVpvUF", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Text_Dur = _t]),
    RegEx = Table.AddColumn(Source, "Num_Dur", each RE("/\d+ [A-Z]/gi", [Text_Dur])),
    #"Converted Duration" = Table.TransformColumns(RegEx, {"Num_Dur", each let pair = List.Zip(List.Transform(Text.Split(_, ","), each Text.Split(_, " "))), rd = Record.FromList(List.Transform(pair{0}, Number.From), List.Transform(pair{1}, Text.Upper)) in #duration(Record.FieldOrDefault(rd, "D", 0), Record.FieldOrDefault(rd, "H", 0), Record.FieldOrDefault(rd, "M", 0), Record.FieldOrDefault(rd, "S", 0))})
in
    #"Converted Duration"

Screenshot 2021-08-24 231639.png

kenwilsonii
Frequent Visitor
3 years ago
Format text as HH:MM:SS and then use Duration.FromText

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