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How did/would you handle this

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  • How did/would you handle this

    In an multi tennant application, there are vendor companies who sell product, and buying companies buying from the vendors. Lets call the app. owner and system opperator "the system". The vendors are the system's customers that pay the system to be represeented, the buyers are the vendors customers.

    Original thinking was to keep the system's customers separate in a Vendors table, and the buying companies separate in a Customers table, (customers of the vendors). I thought this would make it easier overall with fewer filters and less likely to overlook something when constructing grids and so on, and when the system wants to work with its own customers -the vendors. Also maybe faster not having to always filter out either vendor or customer records. There would be a proportion of 2,000 customers per vendor, 25 vendors would be 50,000 customer records. This brings up the problem of creating an auto increment id for the vendors that would not duplicate the id for the vendor customers.

    The other solution would be just one Company table holding the vendor and customer information with a "classification" field identifying either vendor or customer. The Id number problem is solved but a lot of carefull filtering will always have to be done. I know the id problem with two tables is not a problem, its just deciding on how one wants to id the records.

    If you have faced this question before, what did you decide and why. Also if anyone has an opinion, please feel free to express it. Would you lump the system's customers(the vendors) into the same table with the vendors customers, or keep them separate?


  • #2
    Re: How did/would you handle this

    Maybe in your case link the table to itself? One table, no id conflicts. Add a linking field so you can link back to yourself.
    AlphaBase Solutions, LLC


    • #3
      Re: How did/would you handle this

      Thank you for your reply.

      If I understand correctly, this would create two grids?
      One with my customers, the vendors, and another grid with the vendors' customers?
      Would your suggestion create a parent and linked child grids?
      Wouldn't this involve the use of filters?
      Would I be able to access just the linked child grid directly without first having to open the parent grid?

      Isn't this the same as one table and calling grids using filters to filter out/in records?



      • #4
        Re: How did/would you handle this

        You can probably use one grid linked to itself. But, if that seems redundant use two grids. You must add a linking field, so your table structure would look like this:

        Id Company Linking_ID
        1 Acme Inc
        2 Alpha Software 1
        3 Ace Hardware
        4 Home Depot 3
        5 Lowes 3

        So in this example, Alpha Software is a child of Acme Inc and Home Depot & Lowes are childs of Ace Hardware.
        AlphaBase Solutions, LLC