Change mysql schema from latin1 to utf8 .

fix bug #1086659

Change-Id: I599cf23f03ddec612b9f9c64fcb2c2558aaffba7

ceilometer/storage/sqlalchemy/migrate_repo/versions/003_set_utf8_charset.py

@@ -0,0 +1,46 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Canonical.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from sqlalchemy import MetaData
+
+
+def upgrade(migrate_engine):
+
+    if migrate_engine.name == "mysql":
+        tables = ['meter', 'user', 'resource', 'project', 'source',
+        'sourceassoc']
+        sql = "SET foreign_key_checks = 0;"
+
+        for table in tables:
+            sql += "ALTER TABLE %s CONVERT TO CHARACTER SET utf8;" % table
+        sql += "SET foreign_key_checks = 1;"
+        sql += "ALTER DATABASE %s DEFAULT CHARACTER SET utf8;" \
+            % migrate_engine.url.database
+        migrate_engine.execute(sql)
+
+
+def downgrade(migrate_engine):
+    # Operations to reverse the above upgrade go here.
+    if migrate_engine.name == "mysql":
+        tables = ['meter', 'user', 'resource', 'project', 'source',
+        'sourceassoc']
+        sql = "SET foreign_key_checks = 0;"
+
+        for table in tables:
+            sql += "ALTER TABLE %s CONVERT TO CHARACTER SET latin1;" % table
+        sql += "SET foreign_key_checks = 1;"
+        sql += "ALTER DATABASE %s DEFAULT CHARACTER SET latin1;" \
+            % migrate_engine.url.database

ceilometer/storage/sqlalchemy/models.py

@@ -41,7 +41,8 @@
 def table_args():
     engine_name = urlparse(cfg.CONF.database_connection).scheme
     if engine_name == 'mysql':
-        return {'mysql_engine': cfg.CONF.mysql_engine}
+        return {'mysql_engine': cfg.CONF.mysql_engine,
+                'mysql_charset': utf8}
     return None