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Need help with deleting 3rd child records while deleting the parent

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    #16
    Re: Need help with deleting 3rd child records while deleting the parent

    Thanks Stan!

    Comment


      #17
      Re: Need help with deleting 3rd child records while deleting the parent

      I thought I would ask (although it does not look like it) Do I need to change anything in the code when "price" is not linked as one-to-one but one-to-many (which is my case here). Because I would like to keep track of price changes.

      'Main is primary table
      ' Sub is one to many child, linked on Pid fields
      ' Price is one to one grandchild (linked to child) linked on Id fields

      Comment


        #18
        Re: Need help with deleting 3rd child records while deleting the parent

        Because I would like to keep track of price changes.
        Mark,

        None of us here is looking over your shoulder. Other than your explanation we have no way to know what you're doing.

        What does "keep track of price changes" have to do with anything?

        You original title for this thread is "Need help with deleting 3rd child records while deleting the parent". Are you now saying you don't want that or want something else?
        There can be only one.

        Comment


          #19
          Re: Need help with deleting 3rd child records while deleting the parent

          Hi Stan:

          Of course I want to have the delete functionality. The code above is not deleting all the records associate on the current form (see attachment).

          By keep track of price change I meant that price one-to-many which is the grandchild table of sub.

          The screenshot shows the non-deleted data which was suppose to gone.

          Thanks.
          Mark
          Attached Files

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            #20
            Re: Need help with deleting 3rd child records while deleting the parent

            I think those grandchild records are becoming orphaned somehow but I haven't found out where/how.

            Found that:

            The use of tbl_prc = table.get("price") limits any processing to grandchild records linked to the current parent.

            Change that to

            tbl_prc = table.open_session("price") 'get pointer to the grandchild table independent of form

            and the tbl_prc.delete_range(.....)

            will delete the id's linked to any parent.
            Last edited by Stan Mathews; 03-29-2013, 03:54 PM.
            There can be only one.

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              #21
              Re: Need help with deleting 3rd child records while deleting the parent

              Great work Stan! Thanks a bunch! Thanks for all the help you provided in the past!

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