Init project

birthday_pool_bot/repositories/migrations/__init__.py

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+from .cli import get_cli
+from .migrator import Migrator
+
+
+__all__ = (
+    # cli
+    "get_cli",
+    # migrator
+    "Migrator",
+)

birthday_pool_bot/repositories/migrations/cli.py

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+from typing import Optional
+
+import typer
+from rich.console import Console
+from rich.table import Table
+
+from birthday_pool_bot.settings import Settings
+
+from .migrator import Migrator
+
+
+def callback(ctx: typer.Context):
+    ctx.obj = ctx.obj or {}
+
+    settings = ctx.obj["settings"]
+    ctx.obj["migrator"] = Migrator(settings=settings.repository)
+
+
+def show_migrations_list(ctx: typer.Context):
+    migrator: Migrator = ctx.obj["migrator"]
+
+    table = Table("ID")
+    for migration_id in migrator.get_migrations():
+        table.add_row(migration_id)
+        Console().print(table)
+
+
+def apply_migrations(ctx: typer.Context):
+    migrator: Migrator = ctx.obj["migrator"]
+
+    migrator.migrate()
+
+
+def rollback_migrations(
+    ctx: typer.Context,
+    revision: Optional[str] = typer.Argument(
+        None,
+        help="Revision id or relative revision (`-1`, `-2`)",
+    ),
+):
+    migrator: Migrator = ctx.obj["migrator"]
+
+    migrator.rollback(migration_id=revision)
+
+
+def squash_migrations(ctx: typer.Context):
+    migrator: Migrator = ctx.obj["migrator"]
+
+    migrator.squash_migrations(new_message="init")
+
+
+def create_migration(
+        ctx: typer.Context,
+        message: Optional[str] = typer.Option(
+            None,
+            "-m", "--message",
+            help="Migration short message",
+        ),
+):
+    migrator: Migrator = ctx.obj["migrator"]
+
+    migrator.create_migration(message=message)
+
+
+def get_cli() -> typer.Typer:
+    cli = typer.Typer(name="Migration")
+
+    cli.callback()(callback)
+    cli.command(name="apply")(apply_migrations)
+    cli.command(name="rollback")(rollback_migrations)
+    cli.command(name="create")(create_migration)
+    cli.command(name="squash")(squash_migrations)
+    cli.command(name="list")(show_migrations_list)
+
+    return cli

birthday_pool_bot/repositories/migrations/env.py

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+import asyncio
+from logging.config import fileConfig
+
+from alembic import context
+from sqlalchemy import pool
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+
+from birthday_pool_bot.repositories.tables import User
+
+# 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
+target_metadata = User.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 do_run_migrations(connection: Connection) -> None:
+    context.configure(
+        connection=connection,
+        target_metadata=target_metadata,
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_async_migrations() -> None:
+    """In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    connectable = async_engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+    await connectable.dispose()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode."""
+
+    asyncio.run(run_async_migrations())
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

birthday_pool_bot/repositories/migrations/migrator.py

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+import importlib.util
+import pathlib
+from types import ModuleType
+from typing import Generator, Iterable
+
+from alembic import command as alembic_command
+from alembic.config import Config as AlembicConfig
+
+from birthday_pool_bot.repositories import RepositorySettings
+
+
+class Migrator:
+    MIGRATION_FILENAME_TEMPLATE = (
+        "%%(year)d_%%(month)02d_%%(day)02d_%%(hour)02dh%%(minute)02dm%%(second)02ds_%%(slug)s"
+    )
+
+    def __init__(self, settings: RepositorySettings):
+        self._settings = settings
+
+        self._alembic_config = self._generate_alembic_config()
+
+    def _generate_alembic_config(self) -> AlembicConfig:
+        migrations_path = self.get_migrations_directory_path()
+
+        config = AlembicConfig()
+        config.set_main_option("script_location", str(migrations_path))
+        config.set_main_option("file_template", self.MIGRATION_FILENAME_TEMPLATE)
+        config.set_main_option("sqlalchemy.url", str(self._settings.dsn).replace("%", "%%"))
+
+        return config
+
+    def squash_migrations(
+            self,
+            new_migration_id: str | None = None,
+            **kwargs,
+    ) -> str:
+        new_message = kwargs.get("new_message", None)
+
+        if new_migration_id is None:
+            last_migration_id = self.get_latest_migration()
+            new_migration_id = last_migration_id
+
+        self.rollback(migration_id="base")
+        self._delete_all_migrations()
+        new_migration_id = self.create_migration(
+            migration_id=new_migration_id,
+            message=new_message,
+        )
+        return new_migration_id
+
+    def migrate(self, migration_id: str | None = None, **kwargs) -> str | None:
+        alembic_revision = migration_id or "head"
+        alembic_command.upgrade(config=self._alembic_config, revision=alembic_revision)
+
+        return self.get_current_migration()
+
+    def rollback(self, migration_id: str | None = None, **kwargs) -> str | None:
+        alembic_revision = migration_id or "-1"
+        alembic_command.downgrade(config=self._alembic_config, revision=alembic_revision)
+
+        return self.get_current_migration()
+
+    def get_current_migration(self) -> str | None:
+        return None
+
+    def create_migration(
+            self,
+            migration_id: str | None = None,
+            **kwargs,
+    ) -> str:
+        message = kwargs.get("message", None)
+
+        alembic_command.revision(
+            self._alembic_config,
+            message=message,
+            rev_id=migration_id,
+            autogenerate=True,
+        )
+
+        last_migration_id = self.get_latest_migration()
+        if last_migration_id is None:
+            raise RuntimeError("Migration not created")
+
+        return last_migration_id
+
+    def get_latest_migration(self) -> str | None:
+        last_migration_id = None
+        for migration_id in self.get_migrations():
+            last_migration_id = migration_id
+        return last_migration_id
+
+    def get_migrations(self) -> Generator[str, None, None]:
+        migrations_modules = self._get_migrations_modules()
+        sorted_migrations_modules = self._sort_migrations_modules(modules=migrations_modules)
+        for migration_module in sorted_migrations_modules:
+            yield migration_module.revision
+
+    def _get_migrations_modules(self) -> Iterable[ModuleType]:
+        migrations_path = self.get_migrations_directory_path()
+        versions_path = migrations_path / "versions"
+
+        for index, migration_module_path in enumerate(versions_path.glob("*.py")):
+            migration_module_name = f"migration_{index:08}"
+            migration_module_spec = importlib.util.spec_from_file_location(
+                name=migration_module_name,
+                location=migration_module_path,
+            )
+            if migration_module_spec is None or migration_module_spec.loader is None:
+                raise ValueError(f"Cannot load migration module '{migration_module_path}'")
+            migration_module = importlib.util.module_from_spec(spec=migration_module_spec)
+            migration_module_spec.loader.exec_module(migration_module)
+            yield migration_module
+
+    def _sort_migrations_modules(self, modules: Iterable[ModuleType]) -> list[ModuleType]:
+        next_module_map = {}
+        first_module = None
+        for module in modules:
+            if module.down_revision is None:
+                if first_module is not None:
+                    raise ValueError((
+                        "Found multiple first migrations: "
+                        f"'{module.revision}' and '{first_module.revision}'"
+                    ))
+                first_module = module
+            else:
+                next_module_map[module.down_revision] = module
+        if first_module is None:
+            raise ValueError("Doesn't found first migration")
+
+        current_module = first_module
+        sorted_modules = [current_module]
+        while next_module_map:
+            current_module = next_module_map.pop(current_module.revision)
+            sorted_modules.append(current_module)
+
+        return sorted_modules
+
+    def _delete_all_migrations(self):
+        migrations_path = self.get_migrations_directory_path()
+        versions_path = migrations_path / "versions"
+        for migration_file_path in versions_path.glob("*.py"):
+            migration_file_path.unlink()
+
+    def get_migrations_directory_path(self) -> pathlib.Path:
+        directory_path = pathlib.Path(__file__).parent
+        return directory_path

birthday_pool_bot/repositories/migrations/script.py.mako

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+"""${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"}

birthday_pool_bot/repositories/migrations/versions/2026_01_13_10h06m43s_init.py

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+"""init
+
+Revision ID: c1060d90df61
+Revises: 
+Create Date: 2026-01-13 10:06:43.435312
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+import sqlmodel
+from alembic import op
+
+
+# revision identifiers, used by Alembic.
+revision: str = "c1060d90df61"
+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("users",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("name", sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+        sa.Column("birthday", sa.Date(), nullable=True),
+        sa.Column("phone", sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+        sa.Column("telegram_id", sa.Integer(), nullable=True),
+        sa.Column("gift_payment_data", sa.JSON(), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("id"),
+        sa.UniqueConstraint("phone", name="uq__users__phone"),
+        sa.UniqueConstraint("telegram_id", name="uq__users__telegram_id",)
+    )
+    op.create_index("ix__users__phone", "users", ["phone"], unique=False)
+    op.create_index("ix__users__telegram_id", "users", ["telegram_id"], unique=False)
+    op.create_table("pools",
+        sa.Column("id", sa.Uuid(), nullable=False),
+        sa.Column("owner_id", sa.Uuid(), nullable=False),
+        sa.Column("birthday_user_id", sa.Uuid(), nullable=False),
+        sa.Column("description", sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+        sa.Column("payment_data", sa.JSON(), nullable=False),
+        sa.CheckConstraint(
+            "owner_id <> birthday_user_id",
+            name="ck__pools__owner_not_birthday_user",
+        ),
+        sa.ForeignKeyConstraint(["birthday_user_id"], ["users.id"]),
+        sa.ForeignKeyConstraint(["owner_id"], ["users.id"]),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("id"),
+    )
+    op.create_index("ix__pools__birthday_user_id", "pools", ["birthday_user_id"], unique=False)
+    op.create_index("ix__pools__owner_id", "pools", ["owner_id"], unique=False)
+    op.create_table("subscriptions",
+        sa.Column("from_user_id", sa.Uuid(), nullable=False),
+        sa.Column("to_user_id", sa.Uuid(), nullable=False),
+        sa.Column("name", sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+        sa.Column("pool_id", sa.Uuid(), nullable=True),
+        sa.CheckConstraint(
+            "from_user_id <> to_user_id",
+            name="ck__subscriptions__from_user_not_to_user",
+        ),
+        sa.ForeignKeyConstraint(["from_user_id"], ["users.id"]),
+        sa.ForeignKeyConstraint(["pool_id"], ["pools.id"], ondelete="SET NULL"),
+        sa.ForeignKeyConstraint(["to_user_id"], ["users.id"]),
+        sa.PrimaryKeyConstraint("from_user_id", "to_user_id"),
+        sa.UniqueConstraint("from_user_id", "to_user_id", name="uq__subscriptions__from_to_user"),
+    )
+    op.create_index("ix__subscriptions__from_user_id", "subscriptions", ["from_user_id"], unique=False)
+    op.create_index(
+        "ix__subscriptions__from_user_id__to_user_id",
+        "subscriptions",
+        ["from_user_id", "to_user_id"],
+        unique=False,
+    )
+    op.create_index("ix__subscriptions__name", "subscriptions", ["name"], unique=False)
+    op.create_index("ix__subscriptions__pool_id", "subscriptions", ["pool_id"], unique=False)
+    op.create_index("ix__subscriptions__to_user_id", "subscriptions", ["to_user_id"], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index("ix__subscriptions__to_user_id", table_name="subscriptions")
+    op.drop_index("ix__subscriptions__pool_id", table_name="subscriptions")
+    op.drop_index("ix__subscriptions__name", table_name="subscriptions")
+    op.drop_index("ix__subscriptions__from_user_id__to_user_id", table_name="subscriptions")
+    op.drop_index("ix__subscriptions__from_user_id", table_name="subscriptions")
+    op.drop_table("subscriptions")
+    op.drop_index("ix__pools__owner_id", table_name="pools")
+    op.drop_index("ix__pools__birthday_user_id", table_name="pools")
+    op.drop_table("pools")
+    op.drop_index("ix__users__telegram_id", table_name="users")
+    op.drop_index("ix__users__phone", table_name="users")
+    op.drop_table("users")
+    # ### end Alembic commands ###