From 52eadbf5c0bad53ca46eea3bb96a17c3320b55b2 Mon Sep 17 00:00:00 2001 From: Tim Graham Date: Tue, 2 Sep 2014 08:12:49 -0400 Subject: [PATCH] Revert "[1.7.x] Undocumented SeparateDatabaseAndState so crash is not RB. Refs #22918" This reverts commit a7ac5f018726694e3a79180ef97f2813c715fac0. --- docs/ref/migration-operations.txt | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/docs/ref/migration-operations.txt b/docs/ref/migration-operations.txt index 057fcc781ca..171ddd8ee7d 100644 --- a/docs/ref/migration-operations.txt +++ b/docs/ref/migration-operations.txt @@ -248,9 +248,9 @@ rest of the code unchanged for data migrations. Much like :class:`RunSQL`, ensure that if you change schema inside here you're either doing it outside the scope of the Django model system (e.g. triggers) -or that you use a custom Operation to reflect your changes to the model -state - otherwise, the versioned ORM and the autodetector will stop -working correctly. +or that you use :class:`SeparateDatabaseAndState` to add in operations that will +reflect your changes to the model state - otherwise, the versioned ORM and +the autodetector will stop working correctly. By default, ``RunPython`` will run its contents inside a transaction even on databases that do not support DDL transactions (for example, MySQL and @@ -266,6 +266,18 @@ set ``atomic=False``. ``schema_editor.connection.alias``, where ``schema_editor`` is the second argument to your function). +SeparateDatabaseAndState +------------------------ + +.. class:: SeparateDatabaseAndState(database_operations=None, state_operations=None) + +A highly specialized operation that let you mix and match the database +(schema-changing) and state (autodetector-powering) aspects of operations. + +It accepts two list of operations, and when asked to apply state will use the +state list, and when asked to apply changes to the database will use the database +list. Do not use this operation unless you're very sure you know what you're doing. + Writing your own ================