77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
"""Alembic environment.
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We bypass `alembic.ini`'s `sqlalchemy.url` and pull the URL from the project's
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Pydantic settings so a single .env governs both runtime and migrations.
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Importing `app.models` registers every model on `Base.metadata`.
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"""
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from __future__ import annotations
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from logging.config import fileConfig
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from alembic import context
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from sqlalchemy import engine_from_config, pool
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# noqa: F401 — registers models on Base.metadata
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from app import models as _models # noqa: F401
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from app.core.config import settings
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from app.db.base import Base
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config = context.config
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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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# Inject the DB URL at runtime.
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config.set_main_option("sqlalchemy.url", settings.database_url)
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target_metadata = Base.metadata
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def include_object(_object, _name, type_, _reflected, _compare_to): # type: ignore[no-untyped-def]
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"""Skip alembic's internal version table from autogenerate diffs."""
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if type_ == "table" and _name == "alembic_version":
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return False
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return True
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def run_migrations_offline() -> None:
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"""Generate SQL without an engine — useful for review."""
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context.configure(
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url=config.get_main_option("sqlalchemy.url"),
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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include_object=include_object,
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compare_type=True,
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compare_server_default=True,
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)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online() -> None:
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"""Apply migrations against a live DB."""
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connectable = engine_from_config(
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config.get_section(config.config_ini_section, {}),
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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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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include_object=include_object,
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compare_type=True,
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compare_server_default=True,
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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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