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[FIX] drop_view_if_exists: simpler and CASCADING implementation for pg 8.3+ 

OpenERP depends on PostgreSQL 8.3 so we can now
use 'IF EXISTS'. It's also necessary to 'CASCADE'
the drop, otherwise depending views will prevent
the deletion and thus update of the view.
Depending views will automatically be updated
later and thus re-created, so this is safe.

bzr revid: odo@openerp.com-20120227165737-z5fgb6fle9g0cylw
This commit is contained in:
Olivier Dony 2012-02-27 17:57:37 +01:00
parent 2b2ae48ea9
commit 3e61e9d497
1 changed files with 2 additions and 4 deletions
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6
openerp/tools/sql.py
View File

@ -20,9 +20,7 @@
##############################################################################
def drop_view_if_exists(cr, viewname):
cr.execute("select count(1) from pg_class where relkind=%s and relname=%s", ('v', viewname,))
if cr.fetchone()[0]:
cr.execute("DROP view %s" % (viewname,))
cr.commit()
cr.execute("DROP view IF EXISTS %s CASCADE" % (viewname,))
cr.commit()
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