RE: Multiple ERAttachment Databases
RE: Multiple ERAttachment Databases
- Subject: RE: Multiple ERAttachment Databases
- From: "Beatty, Daniel D CIV NAVAIR, 474300D" <email@hidden>
- Date: Mon, 13 Jan 2014 21:13:27 +0000
- Thread-topic: Multiple ERAttachment Databases
Hi Chuck and Dave,
Good to hear from you again, Chuck. I think I may be on to something. I hope to make publication in time for things like WOWODC or what ever we are calling it these days.
V/R,
Daniel D. Beatty, Ph.D.
Senior Computer Scientist,
Detonation Sciences Branch- NAWCWD
1 Administration Circle M/S 1109
China Lake, CA 93555
(760)939-7097
email@hidden
________________________________
From: webobjects-dev-bounces+daniel.beatty=email@hidden [webobjects-dev-bounces+daniel.beatty=email@hidden] on behalf of Chuck Hill [email@hidden]
Sent: Monday, January 13, 2014 12:45 PM
To: David Avendasora; WebObjects-Dev Mailing List List
Subject: Re: Multiple ERAttachment Databases
There should be no problem with cloning and modifying the model when the app loads. I have NFI about ERAttachment.
Chuck
--
Chuck Hill
Executive Managing Partner, VP Development and Technical Services
Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
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On 1/13/2014, 6:43 AM, "David Avendasora" wrote:
Hi all,
I’m working on a project that needs to have a separate, independent ERAttachment setup. What I mean is that the project is already using ERAttachment for a few things, but now I have a need for all of ERAttachment’s functionality, only storing all the meta-data and even db-based attachments in a completely different database than where the existing attachments are stored.
I have done exactly this before by forking ERAttachment into a new "DaveAttachment" Framework. All the existing attachments worked using the stock ERAttachment framework, but the new attachments were managed by DaveAttachment, but that is long-term code management PITA.
I’m wondering if it would it be possible enable ERAttachment to use multiple data-stores by programmatically cloning the ERAttachment EOModel at startup and creating a new EOModel for each “data-store” with independent Entity names as configured by properties?
If you only have one data-store (the current functionality) then ERAttachment would continue to work as-is, but if you specify multiple data-stores in the properties, that would trigger the programatic creation and loading of the additional models?
Does anyone see anything that I’m missing that would not allow this?
Thanks!
Dave
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WebObjects - so easy that even Dave Avendasora can do it!™
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David Avendasora
Senior Software Abuser
Nekesto, Inc.
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