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single portal but multiple databases
Last Post 08/03/2011 3:56 PM by
Joseph Craig
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Joe B
Nuke Newbie
Posts:1
08/03/2011 3:03 PM
We are using DNN 6. We decided to keep DNN database objects separate from the application transactional data. Our customers get to specify the name of the application database and the DNN database is always that name plus _DNN. i.e. ACME and ACME_DNN
When a module installs or uninstalls, it is my understanding that the manifest specifies which database scripts to run. However, the database context is the DNN database. (i.e. ACME_DNN)
How do I get database objects created in the application database (i.e. ACME)?
Joseph Craig
DNN MVP
Posts:11667
08/03/2011 3:56 PM
I think that you are asking for a lot of unintended trouble.
Most modules (perhaps nearly all modules) are written expecting that all of the data tables and objects will be in a single database. Many of these create relations between DotNetNuke's tables and the modules' tables. At a minimum, the module tables may use and store data taken from DotNetNuke tables, such as linking an HTML module's contents to a moduleid or tabid. Moreover, the modules assume a single data provider that works for module table and DotNetNuke tables.
So, if I understand what you are trying to do, you would need to have separate data providers for the DotNetNuke stuff and for the module stuff -- at a minimum.
My advice: don't do it!
--------------
Having said that, I have used separate tables in separate databases for a couple of large progjects. In those cases, the external data was large or had to be synchronized to an external data feed or something like that. In all of those cases we used custom modules or DotNetNuke modules that can be configured to operate on data from an external table (Reports, Form and List, SGSV from Tressleworks.ca). I believe that there are image gallery modules that can be configured that way too.
Joe Craig,
Patapsco Research Group
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