70 lines
1.8 KiB
Python
70 lines
1.8 KiB
Python
from __future__ import with_statement
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from alembic import context
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from sqlalchemy import engine_from_config, pool
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from logging.config import dictConfig
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import yaml
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from pyjeeves.models.jvsmodels import Base
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# Read the config file
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with open("config.yml", 'r') as ymlfile:
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cfg = yaml.load(ymlfile)
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# Interpret the config file for Python logging.
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# This line sets up loggers basically.
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dictConfig(cfg.get('logging'))
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# add your model's MetaData object here
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# for 'autogenerate' support
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# from myapp import mymodel
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# target_metadata = mymodel.Base.metadata
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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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url = cfg.get('alembic', {}).get("sqlalchemy.url")
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context.configure(
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url=url, target_metadata=target_metadata, literal_binds=True)
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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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connectable = engine_from_config(
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cfg.get('alembic', {}),
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prefix='sqlalchemy.',
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poolclass=pool.NullPool)
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with connectable.connect() as connection:
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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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with context.begin_transaction():
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context.run_migrations()
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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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