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ORM feature: allow renaming of columns.

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Sometimes we may want to rename object attributes, aka. SQL columns.
Provide a mechanism for that.

bzr revid: p_christ@hol.gr-20090912003049-v5xe6eypp5u462vg
This commit is contained in:
P. Christeas
2009-09-12 03:30:49 +03:00
parent c960d4fa36
commit 56ec1212c6
1 changed files with 15 additions and 1 deletions
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bin/osv/orm.py
+15 -1
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@@ -1740,6 +1740,20 @@ class orm(orm_template):
"AND c.oid=a.attrelid " \
"AND a.atttypid=t.oid", (self._table, k))
res = cr.dictfetchall()
if not res and hasattr(f,'oldname'):
cr.execute("SELECT c.relname,a.attname,a.attlen,a.atttypmod,a.attnotnull,a.atthasdef,t.typname,CASE WHEN a.attlen=-1 THEN a.atttypmod-4 ELSE a.attlen END as size " \
"FROM pg_class c,pg_attribute a,pg_type t " \
"WHERE c.relname=%s " \
"AND a.attname=%s " \
"AND c.oid=a.attrelid " \
"AND a.atttypid=t.oid", (self._table, f.oldname))
res_old = cr.dictfetchall()
logger.notifyChannel('orm', netsvc.LOG_DEBUG, 'trying to rename %s(%s) to %s'% (self._table, f.oldname, k))
if res_old and len(res_old)==1:
cr.execute('ALTER TABLE "%s" RENAME "%s" TO "%s"' % ( self._table,f.oldname, k))
res = res_old
res[0]['attname'] = k
if not res:
if not isinstance(f, fields.function) or f.store:
@@ -1887,7 +1901,7 @@ class orm(orm_template):
cr.execute('ALTER TABLE "' + self._table + '" ADD FOREIGN KEY ("' + k + '") REFERENCES "' + ref + '" ON DELETE ' + f.ondelete)
cr.commit()
else:
logger.notifyChannel('orm', netsvc.LOG_ERROR, "Programming error !")
logger.notifyChannel('orm', netsvc.LOG_ERROR, "Programming error, column %s->%s has multiple instances !"%(self._table,k))
for order,f,k in todo_update_store:
todo_end.append((order, self._update_store, (f, k)))