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108 lines
3.4 KiB
108 lines
3.4 KiB
# dialects/mysql/provision.py
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# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors
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# <see AUTHORS file>
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#
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# This module is part of SQLAlchemy and is released under
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# the MIT License: https://www.opensource.org/licenses/mit-license.php
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# mypy: ignore-errors
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from ... import exc
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from ...testing.provision import configure_follower
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from ...testing.provision import create_db
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from ...testing.provision import drop_db
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from ...testing.provision import generate_driver_url
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from ...testing.provision import temp_table_keyword_args
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from ...testing.provision import upsert
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@generate_driver_url.for_db("mysql", "mariadb")
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def generate_driver_url(url, driver, query_str):
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backend = url.get_backend_name()
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# NOTE: at the moment, tests are running mariadbconnector
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# against both mariadb and mysql backends. if we want this to be
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# limited, do the decision making here to reject a "mysql+mariadbconnector"
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# URL. Optionally also re-enable the module level
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# MySQLDialect_mariadbconnector.is_mysql flag as well, which must include
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# a unit and/or functional test.
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# all the Jenkins tests have been running mysqlclient Python library
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# built against mariadb client drivers for years against all MySQL /
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# MariaDB versions going back to MySQL 5.6, currently they can talk
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# to MySQL databases without problems.
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if backend == "mysql":
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dialect_cls = url.get_dialect()
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if dialect_cls._is_mariadb_from_url(url):
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backend = "mariadb"
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new_url = url.set(
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drivername="%s+%s" % (backend, driver)
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).update_query_string(query_str)
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try:
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new_url.get_dialect()
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except exc.NoSuchModuleError:
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return None
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else:
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return new_url
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@create_db.for_db("mysql", "mariadb")
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def _mysql_create_db(cfg, eng, ident):
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with eng.begin() as conn:
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try:
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_mysql_drop_db(cfg, conn, ident)
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except Exception:
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pass
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with eng.begin() as conn:
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conn.exec_driver_sql(
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"CREATE DATABASE %s CHARACTER SET utf8mb4" % ident
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)
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conn.exec_driver_sql(
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"CREATE DATABASE %s_test_schema CHARACTER SET utf8mb4" % ident
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)
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conn.exec_driver_sql(
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"CREATE DATABASE %s_test_schema_2 CHARACTER SET utf8mb4" % ident
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)
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@configure_follower.for_db("mysql", "mariadb")
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def _mysql_configure_follower(config, ident):
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config.test_schema = "%s_test_schema" % ident
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config.test_schema_2 = "%s_test_schema_2" % ident
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@drop_db.for_db("mysql", "mariadb")
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def _mysql_drop_db(cfg, eng, ident):
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with eng.begin() as conn:
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conn.exec_driver_sql("DROP DATABASE %s_test_schema" % ident)
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conn.exec_driver_sql("DROP DATABASE %s_test_schema_2" % ident)
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conn.exec_driver_sql("DROP DATABASE %s" % ident)
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@temp_table_keyword_args.for_db("mysql", "mariadb")
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def _mysql_temp_table_keyword_args(cfg, eng):
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return {"prefixes": ["TEMPORARY"]}
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@upsert.for_db("mariadb")
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def _upsert(
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cfg, table, returning, *, set_lambda=None, sort_by_parameter_order=False
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):
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from sqlalchemy.dialects.mysql import insert
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stmt = insert(table)
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if set_lambda:
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stmt = stmt.on_duplicate_key_update(**set_lambda(stmt.inserted))
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else:
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pk1 = table.primary_key.c[0]
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stmt = stmt.on_duplicate_key_update({pk1.key: pk1})
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stmt = stmt.returning(
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*returning, sort_by_parameter_order=sort_by_parameter_order
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)
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return stmt
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