DevForce Community Forum : Multiple Models

DevForce Community Forum : Multiple Models http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce Classic : Multiple Models Wed, 15 Apr 2026 19:58:53 -700 Mon, 09 Jun 2008 07:00:07 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=834 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Multiple Models : THe application that I am creating... http://www.ideablade.com/forum/forum_posts.asp?TID=834&PID=3049#3049 Author: DataMan
Subject: 834
Posted: 09-Jun-2008 at 7:00am

THe application that I am creating can be sold to companies using different ERP systems like Microsoft GP, Axapta, and Standalone. I have built three seperate models in different visual studio projects and depending on which backend ERP system the user has I simply send them the install files that has the proper model.dll file for their backend.

I'm trying to limit the amount of work that it takes to modify those 3 model projects. Currently any changes I make in one I have to make sure I make in all of them.

There are only 4 classes/tables that are different in each backend database type and the other 20 or so are the same. I was thinking I would split the 20 tables into a single model file and the different tables would stay in three other model files. Then I can change the 20 all I want and I wouldn't have to worry about syncing them up.

So I would have:

App_base_model contains 20 tables A,B,C etc

App_GP_Model contains 4 tables w1,x1,y1,z1

App_StandAlone_Model contains 4 tables w2,x2,y2,z2

App_AX_Model contains 4 tables w3,x3,y3,z3

The first issue that I can see is relationships between the two models. Can you programtically create a relationship between 2 different model files? i.e. a relationship between A ->w1? I know that you can create relationships in code but this would be a relationship between 2 different models.

Are there any other issues with the persistance manager that would need to be addressed?

Any thoughts would be appreciated.

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