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Autoincrement child in set

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    Autoincrement child in set

    Good morning fellow A5ers!

    I am building an application to track ideas, and one of the needs is to categorize ideas into various groups. Some ideas will be in more than one group. So, I built a set with groups as the parent, group_idea (just group_id and idea_id with no field rules) as the child and ideas as the grandchild. In field rules, I set ideas->idea_id to autoincrement.

    On the groups form, I have an embedded browse of the ideas and built a routine to select from a list of existing ideas to populate the browse, and that works fine, but I would like to create a new idea directly inside the browse. That doesn't work. When I click on I don't get an idea_id and I can't save the record.

    Do I need to go out to an idea form to create the idea and then create the link, or can I do it diectly?

    Thanks,
    Pat
    Pat Bremkamp
    MindKicks Consulting

    #2
    RE: Autoincrement child in set

    Hello Pat,

    In several similar applications I have used the following approach:

    Three tables,
    -ideas
    -category (what you call group)
    -idea_category (a linking table)

    I then make two sets:
    -1)ideas 1:N to idea_category 1:1 to category
    -2)category 1:N to idea_category 1:1 to ideas

    I enter a new idea into set 1 and then apply multiple categorizations to it.

    If you look at learn alpha.com you will find an old article by me entitled "query on child records" which concerns just such an application and includes a demo.

    The demo is somewhat archaic but it does exemplify one approach to the problem you raise. The same approach has worked in applications to manage bibliography, research notes, and (of all things) recipes.

    Bill
    Bill Hanigsberg

    Comment


      #3
      RE: Autoincrement child in set

      I neglected to add that set 2 allows you to choose a category and see the associated ideas.

      The application at learn alpha shows how to find articles (or in your case ideas) which have been classified under two or more categories--that is, the overlap of multiple categorizations.

      Bill
      Bill Hanigsberg

      Comment


        #4
        RE: Autoincrement child in set

        Bill,

        Thanks, Bill. You have confirmed my fear that to make it easy for the user, I need to work harder!

        I was hoping for some checkbox setting that would magically fix this for me.

        Ah, well, back to the coding....

        Pat
        Pat Bremkamp
        MindKicks Consulting

        Comment

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