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From "Apache Bloodhound" <bloodhound-...@incubator.apache.org>
Subject Re: [Apache Bloodhound] #288: Create prototype for legacy database schema proxy
Date Tue, 11 Dec 2012 10:00:28 GMT
#288: Create prototype for legacy database schema proxy
---------------------------+-----------------------------------
  Reporter:  jure          |      Owner:  jure
      Type:  enhancement   |     Status:  assigned
  Priority:  major         |  Milestone:
 Component:  multiproduct  |    Version:
Resolution:                |   Keywords:  bep-0003 multiproduct
---------------------------+-----------------------------------

Comment (by jure):

 As described in ticket description, attached patch
 (ticket288_r1418224_MultiproductSQLProxy.diff) is an initial
 implementation of SQL proxy with the fore-mentioned functionality. It
 monkey-patches trac to install BloodhoundIterableCursor and
 BloodhoundEnvironment to capture all SQLs targeted at the database and
 provides product aware/scope selection.

 The patch does the following:
 - introduces modified database schema by extending enum, component,
 milestone, version and wiki tables with additional column named product
 - database upgrade
  -  migrates existing enums, components, milestones, versions to a default
 product and, in addition to that, multiplies the configuration for each
 defined product
  - tickets w/o product are migrated to default product
 - in runtime, the BloodhoundIterableCursor translates SQLs targeted at the
 tables mentioned above to the scope of the product defined in
 bloodhound.py (DEFAULT_PRODUCT). This effectively scopes all SQLs targeted
 to translated tables to that product
 - currently, as there is no obvious UI way of chaning product scope,
 currently selected product scope can be changed by modifying the
 bloodhound.py file and chaning the DEFAULT_PRODUCT...

-- 
Ticket URL: <https://issues.apache.org/bloodhound/ticket/288#comment:4>
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