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Best practices: Multiple lookup, write to table

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    #1

    Best practices: Multiple lookup, write to table

    Hi,


    What is considered the best way to do the following? Any practical help will be greatly appreciated in this area, if I can do the following, I have my app licked! I have not read the Xbasic or Xdialog PDFs yet - for some reason everytime I try my system crashes (with ANY PDF). So, I am struggling to get this working smoothly.

    I am busy with a library app. I have tblBooks (a list of books) and tblMembers (a list of members) and a set setBookMember of these tables.

    On the "Issue Book" form (based on setBookMember) I have two fields, book_id and book_title. When a book is being issued, the user must be able to fill in EITHER field, and upon clicking a button, the other is completed (for confirmation purposes). (in case of error, I have a message box saying so).

    At that point, the user performs exactly the same type of lookup procedure for members, using either the member_id or the member_surname field. Naturally, the user must be able to search for a particular member in the case that there are multiple members with the same surname.(in case of error, I have a message box saying so).

    Then, the "Issue Book" button becomes active. When pushed, the member_id is copied into a member_id field in tblBook in the appropriate book's record, and the field number_books is incremented by one in tblMember.

    Okay - am I correct in using the set for this form? How do I update the tblBook and tblMember tables? Or do I just update the set? Any help appreciated...


    Regards,

    Evan
    Tags: None
    #2
    RE: Best practices: Multiple lookup, write to tabl

    Evan,

    I think you have no answers because from the post it is hard to understand what you are doing.

    What is the structure of your set.
    What is the layout of your form (based on the set).

    You could spend a lot of time explaining this or just post your application for others to examine.

    Bill

    What you want to do should not be at all difficult.
    Bill Hanigsberg

    Comment

      #3
      RE: Best practices: Multiple lookup, write to tabl

      Evan,

      I'm not sure I'd use a set based form.

      Instead, I'd probably define table lookups in field rules. This would let the user pick the book or author off popup lists. I would think that would be preferable to typing, searching, and typing again.

      -- tom

      Comment

        #4
        RE: Best practices: Multiple lookup, write to tabl

        Hi,


        In a nutshell, I am busy with a databse to track books in a library. I want to be able to issue books, and to receive returned books from members. In the table tblBook, I want to rack whether the book is in the library, or which member has it. In the tblMember table, I want to track how many books that member has.

        I want one form to issue books, where I can validate both the book's and the members details. Same for returnded books.

        I include a backup of the current app. Please note that thi is not intended as a working application for a client, but rather as a vehicle to teach myself. So - the db is quite messy. I will redo the entire app once I know how to do everything I want to do properly. Any advice/help appreciated.

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