本文整理汇总了Python中sqlalchemy.pool.NullPool方法的典型用法代码示例。如果您正苦于以下问题：Python pool.NullPool方法的具体用法？Python pool.NullPool怎么用？Python pool.NullPool使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sqlalchemy.pool的用法示例。
在下文中一共展示了pool.NullPool方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
with connectable.connect() as connection:
context.configure(
connection=connection, target_metadata=target_metadata
)
with context.begin_transaction():
context.run_migrations() 示例2: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
db_url = os.environ['DRYDOCK_DB_URL']
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.',
poolclass=pool.NullPool,
url=db_url)
with connectable.connect() as connection:
context.configure(
connection=connection, target_metadata=target_metadata)
with context.begin_transaction():
context.run_migrations() 示例3: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
connect_args={'options': f'-c search_path={_app_config.POSTGRES_SCHEMA}'}
)
with connectable.connect() as connection:
context.configure(
connection=connection, target_metadata=target_metadata
)
with context.begin_transaction():
context.run_migrations() 示例4: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
engine = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.',
poolclass=pool.NullPool)
connection = engine.connect()
context.configure(
connection=connection,
target_metadata=target_metadata
)
try:
with context.begin_transaction():
context.run_migrations()
finally:
connection.close() 示例5: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
configuration = config.get_section(config.config_ini_section)
configuration['sqlalchemy.url'] = os.environ['HAMMER_DATABASE_URL']
connectable = engine_from_config(
configuration,
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
with connectable.connect() as connection:
context.configure(
connection=connection, target_metadata=target_metadata
)
with context.begin_transaction():
context.run_migrations() 示例6: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.',
poolclass=pool.NullPool)
with connectable.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata
)
with context.begin_transaction():
context.run_migrations() 示例7: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = create_engine(DBURL, poolclass=pool.NullPool)
with connectable.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata
)
with context.begin_transaction():
context.run_migrations() 示例8: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.',
poolclass=pool.NullPool)
with connectable.connect() as connection:
context.configure(
connection = connection,
target_metadata = target_metadata,
include_object = include_object,
compare_type=True
)
with context.begin_transaction():
context.run_migrations() 示例9: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
engine = create_engine(
database_connection_url,
poolclass=pool.NullPool)
connection = engine.connect()
context.configure(
connection=connection,
target_metadata=target_metadata
)
try:
with context.begin_transaction():
context.run_migrations()
finally:
connection.close() 示例10: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
engine = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.',
poolclass=pool.NullPool
)
connection = engine.connect()
context.configure(
connection=connection,
target_metadata=target_metadata,
compare_type=True
)
try:
with context.begin_transaction():
context.run_migrations()
finally:
connection.close() 示例11: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
engine = engine_from_config(
config.get_section(config.config_ini_section),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
connection = engine.connect()
context.configure(
connection=connection, target_metadata=target_metadata, compare_type=True
)
try:
with context.begin_transaction():
context.run_migrations()
finally:
connection.close() 示例12: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
with connectable.connect() as connection:
context.configure(connection=connection,
target_metadata=target_metadata)
with context.begin_transaction():
context.run_migrations() 示例13: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
engine = create_engine(
octavia_config.database.connection,
poolclass=pool.NullPool)
connection = engine.connect()
context.configure(
connection=connection,
target_metadata=target_metadata)
try:
with context.begin_transaction():
context.run_migrations()
finally:
connection.close() 示例14: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.',
poolclass=pool.NullPool,
)
with connectable.connect() as connection:
context.configure(
connection=connection, target_metadata=target_metadata
)
with context.begin_transaction():
context.run_migrations() 示例15: run_migrations_online
# 需要导入模块: from sqlalchemy import pool [as 别名]
# 或者: from sqlalchemy.pool import NullPool [as 别名]
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
connectable = getattr(config, 'connection', None)
if connectable is None:
connectable = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.',
poolclass=pool.NullPool)
with connectable.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata,
version_table=VERSION_TABLE
)
with context.begin_transaction():
context.run_migrations()