test0908
/
django
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Refactored gis/spatialite connection initialization 

The connection state is now initialized in get_new_connection().
Refs #19274.
This commit is contained in:
Anssi Kääriäinen 2012-11-27 18:33:56 +02:00
parent 64f6e0370a
commit 86644e065f
1 changed files with 20 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
django/contrib/gis/db/backends/spatialite/base.py
View File

@ -36,29 +36,23 @@ class DatabaseWrapper(SQLiteDatabaseWrapper):
self.creation = SpatiaLiteCreation(self)
self.introspection = SpatiaLiteIntrospection(self)
def _cursor(self):
if self.connection is None:
self._sqlite_create_connection()
## From here on, customized for GeoDjango ##
# Enabling extension loading on the SQLite connection.
try:
self.connection.enable_load_extension(True)
except AttributeError:
raise ImproperlyConfigured('The pysqlite library does not support C extension loading. '
'Both SQLite and pysqlite must be configured to allow '
'the loading of extensions to use SpatiaLite.'
)
# Loading the SpatiaLite library extension on the connection, and returning
# the created cursor.
cur = self.connection.cursor(factory=SQLiteCursorWrapper)
try:
cur.execute("SELECT load_extension(%s)", (self.spatialite_lib,))
except Exception as msg:
raise ImproperlyConfigured('Unable to load the SpatiaLite library extension '
'"%s" because: %s' % (self.spatialite_lib, msg))
return cur
else:
return self.connection.cursor(factory=SQLiteCursorWrapper)
def get_new_connection(self, conn_params):
conn = super(DatabaseWrapper, self).get_new_connection(conn_params)
# Enabling extension loading on the SQLite connection.
try:
conn.enable_load_extension(True)
except AttributeError:
raise ImproperlyConfigured(
'The pysqlite library does not support C extension loading. '
'Both SQLite and pysqlite must be configured to allow '
'the loading of extensions to use SpatiaLite.')
# Loading the SpatiaLite library extension on the connection, and returning
# the created cursor.
cur = conn.cursor(factory=SQLiteCursorWrapper)
try:
cur.execute("SELECT load_extension(%s)", (self.spatialite_lib,))
except Exception as msg:
raise ImproperlyConfigured('Unable to load the SpatiaLite library extension '
'"%s" because: %s' % (self.spatialite_lib, msg))
cur.close()
return conn