p15693087
/
django
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Rearranged an Oracle ALTER statement so it is run only once per new connection, not on every cursor creation. Thanks, Ian Kelly. 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6963 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Matt Boersma 2007-12-20 23:06:30 +00:00
parent d1b5a0bde5
commit 72d279a29f
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
django/db/backends/oracle/base.py
View File

@ -413,6 +413,7 @@ class DatabaseWrapper(BaseDatabaseWrapper):
return self.connection is not None return self.connection is not None
def _cursor(self, settings): def _cursor(self, settings):
cursor = None
if not self._valid_connection(): if not self._valid_connection():
if len(settings.DATABASE_HOST.strip()) == 0: if len(settings.DATABASE_HOST.strip()) == 0:
settings.DATABASE_HOST = 'localhost' settings.DATABASE_HOST = 'localhost'
@ -422,16 +423,19 @@ class DatabaseWrapper(BaseDatabaseWrapper):
else: else:
conn_string = "%s/%s@%s" % (settings.DATABASE_USER, settings.DATABASE_PASSWORD, settings.DATABASE_NAME) conn_string = "%s/%s@%s" % (settings.DATABASE_USER, settings.DATABASE_PASSWORD, settings.DATABASE_NAME)
self.connection = Database.connect(conn_string, **self.options) self.connection = Database.connect(conn_string, **self.options)
cursor = FormatStylePlaceholderCursor(self.connection)
# Set oracle date to ansi date format. This only needs to execute
# once when we create a new connection.
cursor.execute("ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD' "
"NLS_TIMESTAMP_FORMAT = 'YYYY-MM-DD HH24:MI:SS.FF'")
try: try:
self.oracle_version = int(self.connection.version.split('.')[0]) self.oracle_version = int(self.connection.version.split('.')[0])
except ValueError: except ValueError:
pass pass
if not cursor:
cursor = FormatStylePlaceholderCursor(self.connection) cursor = FormatStylePlaceholderCursor(self.connection)
# Default arraysize of 1 is highly sub-optimal. # Default arraysize of 1 is highly sub-optimal.
cursor.arraysize = 100 cursor.arraysize = 100
# Set oracle date to ansi date format.
cursor.execute("ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY-MM-DD'")
cursor.execute("ALTER SESSION SET NLS_TIMESTAMP_FORMAT = 'YYYY-MM-DD HH24:MI:SS.FF'")
return cursor return cursor
class FormatStylePlaceholderCursor(Database.Cursor): class FormatStylePlaceholderCursor(Database.Cursor):