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Re: One app, multiple databases?
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Re: One app, multiple databases?


  • Subject: Re: One app, multiple databases?
  • From: Rams <email@hidden>
  • Date: Wed, 15 Jun 2005 20:20:32 -0400


On Jun 15, 2005, at 4:24 PM, Sacha Mallais wrote:

On Jun 15, 2005, at 12:55 PM, Rams wrote:


Is it possible to create one WO app and have it access different databases based on the client? For instance, I would like to create a point of sale (POS) app. Different clients have different inventory requirements and would obviously like their own database. Someone selling stationary needs different inventory information than someone selling pets, automobiles, clothing, or whatever.


The difficulty is having multiple databases' tables map to the entities in a single model. WO don't play dat.

So if I understand correctly, I cannot programmatically change the database address of my EOModel within a WO app. It must be done with EOModeler or XCode.


Ideally, I'd like the client to be able to dictate what inventory information they would like to store and then be assigned their own database for inventory without much intervention on my part. Is there any way to do this with WO?


The catch is "assigned their own database". The rest is easily possible within a single application.


If you must force WO to dynamically create databases and EOModels that models those databases, then you might look at dynamically creating EOModels and EOEntities (perhaps subentities of existing, abstract entities).


sacha

So I can dynamically generate a database table within the app? Any pointers on where to start? (sample code, examples, reference material or API docs)


TIA

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  • Follow-Ups:
    • Re: One app, multiple databases?
      • From: Sacha Mallais <email@hidden>
    • Re: One app, multiple databases?
      • From: Mark Morris <email@hidden>
References: 
 >One app, multiple databases? (From: Rams <email@hidden>)
 >Re: One app, multiple databases? (From: Sacha Mallais <email@hidden>)

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