Set up migration environment with alembic

new-registration-app/alembic.ini

@@ -0,0 +1,43 @@
+# A generic, single database configuration.
+
+[alembic]
+
+# database URL.  This is consumed by the user-maintained env.py script only.
+# other means of configuring database URLs may be customized within the env.py
+# file.
+sqlalchemy.url = sqlite:///database.db
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+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

new-registration-app/alembic/README

@@ -0,0 +1 @@
+pyproject configuration, based on the generic configuration.

new-registration-app/alembic/env.py

@@ -0,0 +1,78 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# 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.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+from models import Base
+
+target_metadata = Base.metadata
+
+# 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.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=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.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(connection=connection, target_metadata=target_metadata)
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

new-registration-app/alembic/script.py.mako

@@ -0,0 +1,28 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

new-registration-app/alembic/versions/2025_10_12_2046-299a83240036_inital_revision.py

@@ -0,0 +1,111 @@
+"""inital revision
+
+Revision ID: 299a83240036
+Revises:
+Create Date: 2025-10-12 20:46:13.452705
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = "299a83240036"
+down_revision: Union[str, Sequence[str], None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "event",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("title", sa.String(), nullable=False),
+        sa.Column("event_time", sa.DateTime(), nullable=False),
+        sa.Column("registration_deadline", sa.DateTime(), nullable=False),
+        sa.Column("description", sa.String(), nullable=False),
+        sa.Column("recipe_link", sa.String(), nullable=False),
+        sa.Column("team_cooking_min", sa.Integer(), nullable=False),
+        sa.Column("team_cooking_max", sa.Integer(), nullable=False),
+        sa.Column("team_dishes_min", sa.Integer(), nullable=False),
+        sa.Column("team_dishes_max", sa.Integer(), nullable=False),
+        sa.Column("team_prep_min", sa.Integer(), nullable=False),
+        sa.Column("team_prep_max", sa.Integer(), nullable=False),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_table(
+        "household",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("name", sa.String(), nullable=False),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_table(
+        "registration",
+        sa.Column("event_id", sa.Integer(), nullable=False),
+        sa.Column("household_id", sa.Integer(), nullable=False),
+        sa.Column("num_adult_meals", sa.Integer(), nullable=False),
+        sa.Column("num_children_meals", sa.Integer(), nullable=False),
+        sa.Column("num_small_children_meals", sa.Integer(), nullable=False),
+        sa.Column("comment", sa.String(), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["event_id"],
+            ["event.id"],
+        ),
+        sa.ForeignKeyConstraint(
+            ["household_id"],
+            ["household.id"],
+        ),
+        sa.PrimaryKeyConstraint("event_id", "household_id"),
+    )
+
+    op.create_table(
+        "subscription",
+        sa.Column("household_id", sa.Integer(), nullable=False),
+        sa.Column("num_adult_meals", sa.Integer(), nullable=False),
+        sa.Column("num_children_meals", sa.Integer(), nullable=False),
+        sa.Column("num_small_children_meals", sa.Integer(), nullable=False),
+        sa.Column("comment", sa.String(), nullable=True),
+        sa.Column("last_modified", sa.DateTime(), nullable=False),
+        sa.Column("monday", sa.Boolean(), nullable=False),
+        sa.Column("tuesday", sa.Boolean(), nullable=False),
+        sa.Column("wednesday", sa.Boolean(), nullable=False),
+        sa.Column("thursday", sa.Boolean(), nullable=False),
+        sa.Column("friday", sa.Boolean(), nullable=False),
+        sa.Column("saturday", sa.Boolean(), nullable=False),
+        sa.Column("sunday", sa.Boolean(), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["household_id"],
+            ["household.id"],
+        ),
+        sa.PrimaryKeyConstraint("household_id"),
+    )
+    op.create_table(
+        "team_registration",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("event_id", sa.Integer(), nullable=False),
+        sa.Column("person_name", sa.String(), nullable=False),
+        sa.Column("work_type", sa.Text(), nullable=False),
+        sa.Column("comment", sa.String(), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["event_id"],
+            ["event.id"],
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("team_registration")
+    op.drop_table("subscription")
+    op.drop_table("registration")
+    op.drop_table("household")
+    op.drop_table("event")
+    # ### end Alembic commands ###

new-registration-app/pyproject.toml

@@ -5,6 +5,7 @@ description = "Add your description here"
 readme = "README.md"
 requires-python = "~=3.13.0"
 dependencies = [
+    "alembic>=1.17.0",
     "fastapi[standard]>=0.116.0",
     "sqlalchemy>=2.0.44",
     "uvicorn[standard]>=0.35.0",
@@ -17,3 +18,23 @@ dev = [
 ]
 [tool.isort]
 profile = "black"
+
+
+[tool.alembic]
+
+# path to migration scripts.
+# this is typically a path given in POSIX (e.g. forward slashes)
+# format, relative to the token %(here)s which refers to the location of this
+# ini file
+script_location = "%(here)s/alembic"
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+file_template = "%%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s"
+
+# additional paths to be prepended to sys.path. defaults to the current working directory.
+prepend_sys_path = [
+    "."
+]

new-registration-app/uv.lock

@@ -2,6 +2,20 @@ version = 1
 revision = 3
 requires-python = "==3.13.*"
 
+[[package]]
+name = "alembic"
+version = "1.17.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "mako" },
+    { name = "sqlalchemy" },
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/6b/45/6f4555f2039f364c3ce31399529dcf48dd60726ff3715ad67f547d87dfd2/alembic-1.17.0.tar.gz", hash = "sha256:4652a0b3e19616b57d652b82bfa5e38bf5dbea0813eed971612671cb9e90c0fe", size = 1975526, upload-time = "2025-10-11T18:40:13.585Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/44/1f/38e29b06bfed7818ebba1f84904afdc8153ef7b6c7e0d8f3bc6643f5989c/alembic-1.17.0-py3-none-any.whl", hash = "sha256:80523bc437d41b35c5db7e525ad9d908f79de65c27d6a5a5eab6df348a352d99", size = 247449, upload-time = "2025-10-11T18:40:16.288Z" },
+]
+
 [[package]]
 name = "annotated-types"
 version = "0.7.0"
@@ -257,6 +271,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/62/a1/3d680cbfd5f4b8f15abc1d571870c5fc3e594bb582bc3b64ea099db13e56/jinja2-3.1.6-py3-none-any.whl", hash = "sha256:85ece4451f492d0c13c5dd7c13a64681a86afae63a5f347908daf103ce6d2f67", size = 134899, upload-time = "2025-03-05T20:05:00.369Z" },
 ]
 
+[[package]]
+name = "mako"
+version = "1.3.10"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "markupsafe" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/9e/38/bd5b78a920a64d708fe6bc8e0a2c075e1389d53bef8413725c63ba041535/mako-1.3.10.tar.gz", hash = "sha256:99579a6f39583fa7e5630a28c3c1f440e4e97a414b80372649c0ce338da2ea28", size = 392474, upload-time = "2025-04-10T12:44:31.16Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/87/fb/99f81ac72ae23375f22b7afdb7642aba97c00a713c217124420147681a2f/mako-1.3.10-py3-none-any.whl", hash = "sha256:baef24a52fc4fc514a0887ac600f9f1cff3d82c61d4d700a1fa84d597b88db59", size = 78509, upload-time = "2025-04-10T12:50:53.297Z" },
+]
+
 [[package]]
 name = "markdown-it-py"
 version = "4.0.0"
@@ -320,6 +346,7 @@ name = "new-registration-app"
 version = "0.1.0"
 source = { virtual = "." }
 dependencies = [
+    { name = "alembic" },
     { name = "fastapi", extra = ["standard"] },
     { name = "sqlalchemy" },
     { name = "uvicorn", extra = ["standard"] },
@@ -333,6 +360,7 @@ dev = [
 
 [package.metadata]
 requires-dist = [
+    { name = "alembic", specifier = ">=1.17.0" },
     { name = "fastapi", extras = ["standard"], specifier = ">=0.116.0" },
     { name = "sqlalchemy", specifier = ">=2.0.44" },
     { name = "uvicorn", extras = ["standard"], specifier = ">=0.35.0" },