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ChrisBroome's avatar
ChrisBroome
Frequent Visitor
5 years ago
Solved

How to reference and copy data from one row to another

Hi, I'm relatively new to PowerBI and PowerQuery, so apologies if the terminology below is incorrect. I'm trying to do something that I feel 'should' be easy;   I have data set out as follows;   ...
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  • Jimmy801's avatar
    Jimmy801
    5 years ago

    Hello ChrisBroome 

     

    I included now some errorhandling

    let
Source = Csv.Document(File.Contents("C:\Users\Chris.Broome\Downloads\TISReport_15-20201023_130241.csv"),[Delimiter=",", Columns=50, Encoding=65001, QuoteStyle=QuoteStyle.Csv]),
#"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}, {"Column2", type text}, {"Column3", type text}, {"Column4", type text}, {"Column5", type text}, {"Column6", type text}, {"Column7", type text}, {"Column8", type text}, {"Column9", type text}, {"Column10", type text}, {"Column11", type text}, {"Column12", type text}, {"Column13", type text}, {"Column14", type text}, {"Column15", type text}, {"Column16", type text}, {"Column17", type text}, {"Column18", type text}, {"Column19", type text}, {"Column20", type text}, {"Column21", type text}, {"Column22", type text}, {"Column23", type text}, {"Column24", type text}, {"Column25", type text}, {"Column26", type text}, {"Column27", type text}, {"Column28", type text}, {"Column29", type text}, {"Column30", type text}, {"Column31", type text}, {"Column32", type text}, {"Column33", type text}, {"Column34", type text}, {"Column35", type text}, {"Column36", type text}, {"Column37", type text}, {"Column38", type text}, {"Column39", type text}, {"Column40", type text}, {"Column41", type text}, {"Column42", type text}, {"Column43", type text}, {"Column44", type text}, {"Column45", type text}, {"Column46", type text}, {"Column47", type text}, {"Column48", type text}, {"Column49", type text}, {"Column50", type text}}),
#"Renamed Columns" = Table.RenameColumns(#"Changed Type",{{"Column1", "ID"}, {"Column2", "Title"}, {"Column3", "Link ID"}}),
#"PreviousStep" = Table.TransformColumnTypes(#"Renamed Columns",{{"ID", Int64.Type}, {"Title", type text}, {"Link ID", Int64.Type}}),
AddColumn = Table.AddColumn
(
PreviousStep,
"Link Title",
each try Table.SelectRows(PreviousStep, (sel)=> sel[ID]=_[Link ID])[Title]{0} otherwise null
)
in
AddColumn

     

    Copy paste this code to the advanced editor in a new blank query to see how the solution works.

    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

ChrisBroome's avatar
ChrisBroome
Frequent Visitor
5 years ago

Hi Jimmy801 

 

Thanks for your suggestions. I think i'm nearly there; i'm able to get the references working correctly, but any row that doesn't have a reference is now showing an error message;

 

Expression.Error: There weren't enough elements in the enumeration to complete the operation.
Details:
[List]

 

I thought the issue may be solved by adding an 'otherwise Null' command, but can't get this to show in the following code without getting a syntax error;

 

let
Source = Csv.Document(File.Contents("C:\Users\Chris.Broome\Downloads\TISReport_15-20201023_130241.csv"),[Delimiter=",", Columns=50, Encoding=65001, QuoteStyle=QuoteStyle.Csv]),
#"Promoted Headers" = Table.PromoteHeaders(Source, [PromoteAllScalars=true]),
AddColumn = Table.AddColumn
(
#"Promoted Headers",
"Link Title",
each Table.SelectRows(#"Promoted Headers", (sel)=> sel[Key]=_[Epic Link])[Summary]{0}),
#"Reordered Columns" = Table.ReorderColumns(AddColumn,{"Key", "Summary", "Epic Link", "Link Title", "Team (WEB)", "Fix Version/s", "Issue Type", "Open", "Done", "Backlog", "In Test", "Ready For Test", "SignOff", "Code Review", "In Development", "Ready for Development", "New", "Under review", "Obsolete", "Out of Scope", "In Build", "Ready for Dev", "In Design", "Scoping", "Scoping in Progress", "Development in progress", "Ready for code review", "Code Review in progress", "Ready for QA", "QA in Progress", "New Idea", "Dev In progress", "Ready for UAT", "Dev Done - Not Deployed", "Refining", "Reviewed", "Ready To Test", "Design - WIP", "Ready for Review", "Rework In Progress", "Approved by Business", "Refining Requirements", "Approved Dev Ready", "Task Complete", "Requires sizing", "Amigos Review", "Open/Reopened", "Sign Off", "In Progress", "Resolved", "Closed"}),
#"Link Title" = #"Reordered Columns"{3}[Link Title]
in
#"Link Title"

 

So two questions;

1. how do I resolve the errors for rows with no reference, and

2. if turning them into null values will resolve this, how can i modify the above code to include this?

 

Thanks in Advance.

Jimmy801's avatar
Jimmy801
Icon for Community Champion rankCommunity Champion
5 years ago

Hello ChrisBroome 

 

I included now some errorhandling

let
Source = Csv.Document(File.Contents("C:\Users\Chris.Broome\Downloads\TISReport_15-20201023_130241.csv"),[Delimiter=",", Columns=50, Encoding=65001, QuoteStyle=QuoteStyle.Csv]),
#"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}, {"Column2", type text}, {"Column3", type text}, {"Column4", type text}, {"Column5", type text}, {"Column6", type text}, {"Column7", type text}, {"Column8", type text}, {"Column9", type text}, {"Column10", type text}, {"Column11", type text}, {"Column12", type text}, {"Column13", type text}, {"Column14", type text}, {"Column15", type text}, {"Column16", type text}, {"Column17", type text}, {"Column18", type text}, {"Column19", type text}, {"Column20", type text}, {"Column21", type text}, {"Column22", type text}, {"Column23", type text}, {"Column24", type text}, {"Column25", type text}, {"Column26", type text}, {"Column27", type text}, {"Column28", type text}, {"Column29", type text}, {"Column30", type text}, {"Column31", type text}, {"Column32", type text}, {"Column33", type text}, {"Column34", type text}, {"Column35", type text}, {"Column36", type text}, {"Column37", type text}, {"Column38", type text}, {"Column39", type text}, {"Column40", type text}, {"Column41", type text}, {"Column42", type text}, {"Column43", type text}, {"Column44", type text}, {"Column45", type text}, {"Column46", type text}, {"Column47", type text}, {"Column48", type text}, {"Column49", type text}, {"Column50", type text}}),
#"Renamed Columns" = Table.RenameColumns(#"Changed Type",{{"Column1", "ID"}, {"Column2", "Title"}, {"Column3", "Link ID"}}),
#"PreviousStep" = Table.TransformColumnTypes(#"Renamed Columns",{{"ID", Int64.Type}, {"Title", type text}, {"Link ID", Int64.Type}}),
AddColumn = Table.AddColumn
(
PreviousStep,
"Link Title",
each try Table.SelectRows(PreviousStep, (sel)=> sel[ID]=_[Link ID])[Title]{0} otherwise null
)
in
AddColumn

 

Copy paste this code to the advanced editor in a new blank query to see how the solution works.

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