Files
server-backend/pglogical/hooks.py

65 lines
2.2 KiB
Python

# Copyright 2022 Hunki Enterprises BV
# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
import logging
from odoo.sql_db import Cursor
from odoo.tools import config
try:
import sqlparse
except ImportError:
sqlparse = None
SECTION_NAME = "pglogical"
def post_load():
"""
Patch cursor to funnel DDL through pglogical.replicate_ddl_command if configured to
do so
"""
_logger = logging.getLogger("odoo.addons.pglogical")
if SECTION_NAME not in config.misc:
_logger.info("%s section missing in config, not doing anything", SECTION_NAME)
return
replication_sets = list(
filter(None, config.misc[SECTION_NAME].get("replication_sets", "").split(","))
)
if not replication_sets:
_logger.error("no replication sets defined, not doing anything")
return
if not sqlparse:
_logger.error("DDL replication not supported - sqlparse is not available")
return
if config["test_enable"]:
_logger.info("test mode enabled, not doing anything")
return
_logger.info("patching cursor to intercept ddl")
execute_org = Cursor.execute
def execute(self, query, params=None, log_exceptions=None):
"""Wrap DDL in pglogical.replicate_ddl_command"""
# short circuit statements that must be as fast as possible
if query[:6] != "SELECT":
parsed_queries = sqlparse.parse(query)
if any(
parsed_query.get_type() in ("CREATE", "ALTER", "DROP")
for parsed_query in parsed_queries
) and not any(
token.is_keyword and token.normalized in
# don't replicate constraints, triggers, indexes
("CONSTRAINT", "TRIGGER", "INDEX")
for parsed in parsed_queries for token in parsed.tokens[1:]
):
mogrified = self.mogrify(query, params).decode("utf8")
query = "SELECT pglogical.replicate_ddl_command(%s, %s)"
params = (mogrified, execute.replication_sets)
return execute.origin(self, query, params=params, log_exceptions=log_exceptions)
execute.origin = execute_org
execute.replication_sets = replication_sets
Cursor.execute = execute