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List Insert Quandary

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    #1

    List Insert Quandary

    I want to automatically insert a related record into table2 after table1 is saved.

    Table1 is saved from the detail section of a list control.

    To make things more difficult, Table2 has a constraint on it. You can't enter a record into Table2 unless there is a corresponding record in Table1 already.

    I am not using SQL - so I can't do it with a trigger. (I'm using Access.)

    There is an AfterInsert event on the list control, but I can't use that. The AfterInsert event does not actually save the record to the database, it only saves the record to the list. So at that point, I can't enter a record into Table2 because of the constraint.

    There is an AfterSynchronizeRecord event that should be perfect for this, but I can't figure out how to get the primary key value of Table1. The other table1 fields come up with proper values in e.data, but the primary key field does not.

    One idea I had was to make an invisible Child list for Table2 and add the new row to Table2 in the AfterInsert Event of Table1 - then, when the sync happens the tables should all get synced together. But that seems like a lot of work for something which I think should be easier than that.

    Any suggestions? I'm stuck.
    Tags: None
    #2
    Re: List Insert Quandary

    What is the evaluation that decides it is corresponding?
    NWCOPRO: Nuisance Wildlife Control Software My Application: http://www.nwcopro.com "Without forgetting, we would have no memory at all...now what was I saying?"

    Comment

      #3
      Re: List Insert Quandary

      I am not sure what you are asking Charles. I need one record in table2 for every record in table1. There is no evaluation.

      There can eventually be more than 1 record in table2, but it starts with a single, default record.

      Comment

        #4
        Re: List Insert Quandary

        What I mean is how does table2 "know" theres a matching record in 1? In other words does it look for a single value to be the same or multiple?
        For instance I have a customer table, and a job table. I know the job matches the customer by a unique id and NOT the pk and there can be more than one job in the job table.
        So, it seems like once you save the info in table one - you can insert into 2? In my application ( I use MySQL) I just do an insert with xbasic into the job table after I submit to the customer. The link is the unique id, then I get the Max(ID) with the unique id and set its value back into the component and save it back to table 1.

        It's a bit of a round trip but works for me. I hope that makes sense.
        Am I waaaay off here?

        So my suggestion would be to run an insert using xbasic via the same save button you use to save the first record.
        NWCOPRO: Nuisance Wildlife Control Software My Application: http://www.nwcopro.com "Without forgetting, we would have no memory at all...now what was I saying?"

        Comment

          #5
          Re: List Insert Quandary

          Table2 Knows there is no record in Table1 because it is setup as a foreign key. They are related as part of the database structure in Access. That is the way it was setup to begin with.

          The issue is timing.

          However, I think I can try what you are suggesting.

          In the aftersync event, I don't have direct access to the new PK so far as I can tell, but I could look it up. It should be there by the time the aftersync server side event fires. I'll have to see how that works.

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