🗃️ Init alembic

alembic.ini

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+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = alembic
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+hooks=black
+black.type=console_scripts
+black.entrypoint=black
+black.options=
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

alembic/env.py

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+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config, pool, create_engine
+
+from alembic import context  # type: ignore
+from ifsguid.config import settings
+from ifsguid.models import Base
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = Base.metadata  # type: ignore
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """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.
+
+    """
+
+    context.configure(
+        url=settings.SQLALCHEMY_DATABASE_URI.unicode_string(),
+        target_metadata=target_metadata,
+        literal_binds=True,
+        compare_types=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """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"] = f"{settings.SQLALCHEMY_DATABASE_URI}"
+    connectable = engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata, compare_type=True
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

alembic/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${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"}

alembic/versions/b77bb559f678_init_message_and_interaction.py

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+"""Init message and interaction
+
+Revision ID: b77bb559f678
+Revises: 
+Create Date: 2023-11-08 04:17:55.802076
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = "b77bb559f678"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "interaction",
+        sa.Column("id", postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column("created_at", sa.DateTime(), nullable=True),
+        sa.Column("updated_at", sa.DateTime(), nullable=True),
+        sa.Column("settings", sa.JSON(), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("id"),
+    )
+    op.create_index(
+        op.f("ix_interaction_created_at"), "interaction", ["created_at"], unique=False
+    )
+    op.create_index(
+        op.f("ix_interaction_updated_at"), "interaction", ["updated_at"], unique=False
+    )
+    op.create_table(
+        "message",
+        sa.Column("id", postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column("created_at", sa.DateTime(), nullable=True),
+        sa.Column("role", sa.String(), nullable=True),
+        sa.Column("content", sa.String(), nullable=True),
+        sa.Column("interaction_id", postgresql.UUID(as_uuid=True), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["interaction_id"],
+            ["interaction.id"],
+        ),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("id"),
+    )
+    op.create_index(
+        op.f("ix_message_created_at"), "message", ["created_at"], unique=False
+    )
+    op.create_index(op.f("ix_message_role"), "message", ["role"], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f("ix_message_role"), table_name="message")
+    op.drop_index(op.f("ix_message_created_at"), table_name="message")
+    op.drop_table("message")
+    op.drop_index(op.f("ix_interaction_updated_at"), table_name="interaction")
+    op.drop_index(op.f("ix_interaction_created_at"), table_name="interaction")
+    op.drop_table("interaction")
+    # ### end Alembic commands ###