Running Total and joining sharepoint lists

[Anonymous]

I have two sharepoint lists:  IDEAS and VOTES  I need to capture the running total of Yes votes for each idea.  The IDEAS list has a field called THUMBSUPCOUNT that I can use to store the running total of Yes votes.  How do I join the tables and patch the running total back to the IDEAS.THUMBSUPCOUNT field?

[v-xida-msft · Accepted solution]

Hi @Anonymous ,

Could you please share a bit more about the "GoodIdea" column in your VOTES List? Is it a Choice type column or Single line text type column?

Do you want to patch the running total of Yes votes for each idea back to the THUMBSUPCOUNT field in your Ideas List?

Based on the needs that you mentioned, I have made a test on my side, please take a try with the following workaround:

1. If the "GoodIdea" column is a Single line text type column in your VOTES List:

Set the OnSelect property of the "Submit" button to following:

ForAll(
          RenameColumns(IDEAS, "ID", "ID1"),
          Patch(
                    IDEAS,
                    LookUp(IDEAS, ID = ID1),
                    {
                       THUMBSUPCOUNT: CountRows(Filter(VOTES, IDIdea = ID1 && GoodIdea = "Yes"))
                    }
          )
)

2. If the "GoodIdea" column is a Choice type column in your VOTES List:

Set the OnSelect property of the "Submit" button to following:

ForAll(
          RenameColumns(IDEAS, "ID", "ID1"),
          Patch(
                    IDEAS,
                    LookUp(IDEAS, ID = ID1),
                    {
                       THUMBSUPCOUNT: CountRows(Filter(VOTES, IDIdea = ID1 && GoodIdea.Value = "Yes"))
                    }
          )
)

In addition, if the IDIdea column is a LookUp type column in your VOTES list, please modify above formula as below:

ForAll(
          RenameColumns(IDEAS, "ID", "ID1"),
          Patch(
                    IDEAS,
                    LookUp(IDEAS, ID = ID1),
                    {
                       THUMBSUPCOUNT: CountRows(Filter(VOTES, IDIdea.Value = ID1 && GoodIdea = "Yes"))
                    }
          )
)

ForAll(
          RenameColumns(IDEAS, "ID", "ID1"),
          Patch(
                    IDEAS,
                    LookUp(IDEAS, ID = ID1),
                    {
                       THUMBSUPCOUNT: CountRows(Filter(VOTES, IDIdea.Value = ID1 && GoodIdea.Value = "Yes"))
                    }
          )
)  

More details about Patch function, ForAll function and RenameColumns function, please check the following article:

ForAll function

Patch function 

RenameColumns function

Best regards,