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58 lines
1.4 KiB
58 lines
1.4 KiB
"""Pyramid bootstrap environment. """ |
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from alembic import context |
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from pyramid.paster import get_appsettings, setup_logging |
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from sqlalchemy import engine_from_config |
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from cookies.models.meta import Base |
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config = context.config |
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setup_logging(config.config_file_name) |
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settings = get_appsettings(config.config_file_name) |
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target_metadata = Base.metadata |
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def run_migrations_offline(): |
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"""Run migrations in 'offline' mode. |
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This configures the context with just a URL |
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and not an Engine, though an Engine is acceptable |
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here as well. By skipping the Engine creation |
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we don't even need a DBAPI to be available. |
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Calls to context.execute() here emit the given string to the |
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script output. |
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""" |
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context.configure(url=settings['sqlalchemy.url']) |
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with context.begin_transaction(): |
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context.run_migrations() |
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def run_migrations_online(): |
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"""Run migrations in 'online' mode. |
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In this scenario we need to create an Engine |
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and associate a connection with the context. |
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""" |
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engine = engine_from_config(settings, prefix='sqlalchemy.') |
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connection = engine.connect() |
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context.configure( |
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connection=connection, |
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target_metadata=target_metadata |
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) |
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try: |
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with context.begin_transaction(): |
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context.run_migrations() |
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finally: |
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connection.close() |
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if context.is_offline_mode(): |
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run_migrations_offline() |
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else: |
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run_migrations_online()
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