Forum Discussion

ryanb11's avatar
ryanb11
Helper III
5 years ago
Solved

power bi custom column syntax

I have the below custom column in the query editor, where the source is a table with text data and then 2 columns are created upon this.
 
I need to change the source to the table 'rel' and the column 'Score'. No matter what youtube tutorials or format changes i try i keep getting errors. 
 
Would some one be able to help amend the syntax to use the source table and column above where applicable?
 
let
  Source = #table(
      {"Column1"},
      List.Zip(
          {{
              "Call me on 08588812885",
              "Call me on 07525812845",
              "I need assitance please call me",
              "Last tried in 2019"
            }}
        )
    ),
  #"Added Custom" = Table.AddColumn(Source, "Custom", each Text.Split([Column1], " ")),
  #"Added Custom1" = Table.AddColumn(
      #"Added Custom",
      "Custom.1",
      each Text.Combine(
          List.Select(
              [Custom],
              (l) => [
                        ListOfCharacters = Text.ToList(l),
                        Result = not (List.Count(ListOfCharacters) >= 10
                                    and List.AllTrue(
                                            List.Transform(ListOfCharacters, (x) => List.Contains({"0".."9"}, x))
                                    )
                    )][Result]
            ), " ")
    )
in
  #"Added Custom1"
 
Need Help
  • Anonymous's avatar
    Anonymous
    5 years ago

    Hi ryanb11 ,

    Please check if the below screen shot is what you want? If yes, please update it in Power Query Editor.

    1. Choose the related query and right click to choose "Rename" option, rename the query name as "rel"

    2. Navigate to Home ribbon, click "Advanced Editor". Copy and paste the below codes into the opening window:

    let
  Source = #table(
      {"Score"},
      List.Zip(
          {{
              "Call me on 08588812885",
              "Call me on 07525812845",
              "I need assitance please call me",
              "Last tried in 2019"
            }}
        )
    ),
  #"Added Custom" = Table.AddColumn(Source, "Custom", each Text.Split([Score], " ")),
  #"Added Custom1" = Table.AddColumn(
      #"Added Custom",
      "Custom.1",
      each Text.Combine(
          List.Select(
              [Custom],
              (l) => [
                        ListOfCharacters = Text.ToList(l),
                        Result = not (List.Count(ListOfCharacters) >= 10
                                    and List.AllTrue(
                                            List.Transform(ListOfCharacters, (x) => List.Contains({"0".."9"}, x))
                                    )
                    )][Result]
            ), " ")
    )
in
    #"Added Custom1"

    Best Regards

    Rena

6 Replies

  • amitjzaveri's avatar
    amitjzaveri
    Resolver II
    5 years ago

    For trial purposes, I copied the example data in Excel and used that source in the following transformation and it worked fine.

    What is the new source and what error are you getting?

     

    let
    Source = Excel.Workbook(File.Contents("C:\Users\amitz\Desktop\rel.xlsx"), null, true),
    rel_Sheet = Source{[Item="rel",Kind="Sheet"]}[Data],
    #"Changed Type" = Table.TransformColumnTypes(rel_Sheet,{{"Column1", type text}}),
    #"Promoted Headers" = Table.PromoteHeaders(#"Changed Type", [PromoteAllScalars=true]),
    #"Changed Type1" = Table.TransformColumnTypes(#"Promoted Headers",{{"Score", type text}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type1", "Custom", each Text.Split([Score], " ")),
  #"Added Custom1" = Table.AddColumn(
      #"Added Custom",
      "Custom.1",
      each Text.Combine(
          List.Select(
              [Custom],
              (l) => [
                        ListOfCharacters = Text.ToList(l),
                        Result = not (List.Count(ListOfCharacters) >= 10
                                    and List.AllTrue(
                                            List.Transform(ListOfCharacters, (x) => List.Contains({"0".."9"}, x))
                                    )
                    )][Result]
            ), " ")
    )
in
  #"Added Custom1"

     

     

    • ryanb11's avatar
      ryanb11
      Helper III
      5 years ago

      error messages include it does not recognise the table i am trying to use as a source. 

    • ryanb11's avatar
      ryanb11
      Helper III
      5 years ago

      amitjzaveriexcel is not the source i am using so think it is better if you load in the data to power bi and then write the custom column logic.

       

      My source is a table already loaded into power bi, so it isbetter to not use the custom column logic to reference excel.

       

      If you can kindly help with this it would be appreciared,

      • amitjzaveri's avatar
        amitjzaveri
        Resolver II
        5 years ago

        ryanb11  It seems you're trying to use a source from a separate table in the same model and it is not getting referred. If that is the case then you will have to duplicate that table and write follow up transformation lines. 

         

        Otherwise if you can share some screenshot then it would help to clear up things.

         

        Did I answer your question? Mark my post as a solution!