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Re: Framework EOModel Question
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Re: Framework EOModel Question


  • Subject: Re: Framework EOModel Question
  • From: Chuck Hill <email@hidden>
  • Date: Thu, 4 Aug 2005 22:14:13 -0700


On Aug 4, 2005, at 6:06 PM, LD wrote:
because the EOModels in the framework are currently tied to postgres specific column attribute types. Any tips on making the models db agnostic?


EOPrototypes, as Kieran pointed out. A model without prototypes is, um, dumb.



Point taken. I'll get around to utilising PW... just getting as comfortable as I can with WO first.


Although Project Wonder is, erm, wonderful, there is no need to use it to reap the benefits of prototypes. EOPrototypes are part of EOF.


A reusable framework without prototypes is not reusable. See Practical WebObjects pages 45 - 55 for a discussion of this and code. There is some very superficial discussion in the EOModeler docs.

Cheers. The discussion in the book was helpful... on towards utilising EOJDBCPrototypes entity/models.


Excellent.


I'm utilising the postgres 'serial' type for auto-incrementing primary keys...

I can't see how EOF is going to be happy about that.

Hence the use of the PostgresqlPlugIn.framework. Works well (with my slight alteration to the plugin).
If anyone's using PostgreSQL successfully without the plugin, I'm all ears!


I think you might be missing something. EOF is going to generate the keys for you. It is not going to use the autoincrement feature. PostgreSQL probably does nothing if the key is not null. Just make then a regular integer / long column. Keys generated on the DB server side and EOF are not very compatible.

Regards,
Chuck


--
Practical WebObjects - a book for intermediate WebObjects developers who want to increase their overall knowledge of WebObjects, or those who are trying to solve specific application development problems.
http://www.global-village.net/products/practical_webobjects




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  • Follow-Ups:
    • Re: Framework EOModel Question
      • From: LD <email@hidden>
    • Re: Framework EOModel Question
      • From: Anjo Krank <email@hidden>
References: 
 >Re: Framework EOModel Question (From: LD <email@hidden>)
 >Re: Framework EOModel Question (From: Chuck Hill <email@hidden>)
 >Re: Framework EOModel Question (From: LD <email@hidden>)
 >Re: Framework EOModel Question (From: Chuck Hill <email@hidden>)
 >Re: Framework EOModel Question (From: LD <email@hidden>)

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