Re: Problem reading Entity Modeler file in EOModeler

From: David Avendasora (webobject..vendasora.com)
Date: Thu Dec 03 2009 - 06:22:58 EST

  • Next message: David Avendasora: "Re: Problem reading Entity Modeler file in EOModeler"

    Brilliant!

    I like pictures, and you are right that the first two are useless, but using D2* rules to define what is shown is very cool, and makes the diagram readable.

    Dave

    On Dec 3, 2009, at 5:55 AM, Anjo Krank wrote:

    > Soo.... this actually turns out to be pretty neat:) From my model below, adding
    >
    > 100: pageConfiguration = GraphVizPayment => visibleEntityNames = (
    > "Payment",
    > "PaymentType",
    > "PaymentChannel",
    > "PaymentChannelType"
    > )
    >
    > yields:
    >
    >
    > <pastedGraphic.png>
    >
    >
    > Note that it automatically creates the missing nodes.
    >
    > Sweet. One *could* make it so it uses the tools directly and return the PDF. Right now it only creates the .dot file and you still have to open it in the GV app.
    >
    > Cheers, Anjo
    >
    >
    > Am 03.12.2009 um 11:41 schrieb Anjo Krank:
    >
    >>
    >> Am 02.12.2009 um 18:14 schrieb Mike Schrag:
    >>
    >>> I whipped up a quick graffle generator: http://webobjects.mdimension.com/wolips/eomodelgraffle-latest.jar
    >>
    >> Nice work for the 2 hours, but it's worthless for anything > 5 entities. There is a heuristic in the D2JS thingy which defines "entity groups", i.e. subsets of entities that "belong" together (possibly by removing lookup entities and ordering by number of inbound/outbound relationships) which *might* be of help to make this mess a bit cleaner.
    >>
    >> So this looks like:
    >>
    >> <pastedGraphic.png>
    >>
    >>
    >>
    >> The 0:58:33 GraphViz version looks like:
    >>
    >> <pastedGraphic.png>
    >>
    >>
    >> Which is at least a bit more readable (although it's still a mess). It's based on D2W, so you should be able to call it with ERD2WDirectAction as
    >>
    >> http://bla/cgi-bin/WebObjects/myapp.woa/wa/GraphVizSomeSetting
    >>
    >> and (halfway easily) configure the entities to show. DO NOT ASK ME HOW! Look at ERD2WGraphVizPage and adapt/extend/whatever it yourself.
    >>
    >> Cheers, Anjo
    >>
    >>
    >

    David Avendasora
    Senior Software Engineer
    K12, Inc.

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