#23966: Pre-migrate database requirements enhancement
-------------------------------------+-------------------------------------
     Reporter:  kenial               |      Owner:  nobody
         Type:                       |     Status:  new
  Cleanup/optimization               |    Version:  1.7
    Component:  Database layer       |   Keywords:  migrate
  (models, ORM)                      |  BaseDatabaseWrapper spatialite
     Severity:  Normal               |  Has patch:  0
 Triage Stage:  Unreviewed           |      UI/UX:  0
Easy pickings:  0                    |
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 Some database backends has special requirements when the database gets
 migrated.

 For example, when using django.contrib.gis.db.backends.spatialite as a
 backend, the database file should be initialized at first time with this
 command: `"SELECT InitSpatialMetaData();"` Unless, it causes some error
 like https://code.djangoproject.com/ticket/20968.

 I guess this would be appropriate: adding a before_migration() method to
 DatabaseWrapper, and letting database backends inherit it to do some jobs.

--
Ticket URL: <https://code.djangoproject.com/ticket/23966>
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