diff --git a/alembic/env.py b/alembic/env.py new file mode 100644 index 0000000..4d208a7 --- /dev/null +++ b/alembic/env.py @@ -0,0 +1,54 @@ +import asyncio + +from alembic import context +from sqlalchemy.ext.asyncio import create_async_engine + +from the_app.models.base import Base as app_base + +target_metadata = app_base.metadata + + +def run_migrations_offline(): + """Run migrations in 'offline' mode. + + This configures the context with just a URL + and not an Engine, though an Engine is acceptable + here as well. By skipping the Engine creation + we don't even need a DBAPI to be available. + + Calls to context.execute() here emit the given string to the + script output. + + """ + url = f"postgresql+asyncpg://user:secret@db:5432/devdb" + context.configure(url=url, target_metadata=target_metadata, literal_binds=True) + + with context.begin_transaction(): + context.run_migrations() + + +def do_run_migrations(connection): + context.configure(connection=connection, target_metadata=target_metadata) + + with context.begin_transaction(): + context.run_migrations() + + +async 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. + + """ + url = f"postgresql+asyncpg://user:secret@db:5432/devdb" + connectable = create_async_engine(url) + + async with connectable.connect() as connection: + await connection.run_sync(do_run_migrations) + + +if context.is_offline_mode(): + run_migrations_offline() +else: + asyncio.run(run_migrations_online()) diff --git a/alembic/script.py.mako b/alembic/script.py.mako new file mode 100644 index 0000000..0fdcfba --- /dev/null +++ b/alembic/script.py.mako @@ -0,0 +1,25 @@ +"""${message} + +Revision ID: ${up_revision} +Revises: ${down_revision | comma,n} +Create Date: ${create_date} + +""" +from alembic import op +import sqlalchemy as sa +import tm.db +${imports if imports else ""} + +# revision identifiers, used by Alembic. +revision = ${repr(up_revision)} +down_revision = ${repr(down_revision)} +branch_labels = ${repr(branch_labels)} +depends_on = ${repr(depends_on)} + + +def upgrade(): + ${upgrades if upgrades else "pass"} + + +def downgrade(): + ${downgrades if downgrades else "pass"} diff --git a/alembic/versions/.gitkeep b/alembic/versions/.gitkeep new file mode 100644 index 0000000..e69de29