Using alembic

backend/alembic.ini

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+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = 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
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python>=3.9 or backports.zoneinfo library.
+# Any required deps can installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to ZoneInfo()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to alembic/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "version_path_separator" below.
+# version_locations = %(here)s/bar:%(here)s/bat:alembic/versions
+
+# version path separator; As mentioned above, this is the character used to split
+# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep.
+# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas.
+# Valid values for version_path_separator are:
+#
+# version_path_separator = :
+# version_path_separator = ;
+# version_path_separator = space
+version_path_separator = os  # Use os.pathsep. Default configuration used for new projects.
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = mysql+pymysql://membership_user:SecureMembershipPass2024!@mysql:3306/membership_db
+
+
+[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 = -l 79 REVISION_SCRIPT_FILENAME
+
+# lint with attempts to fix using "ruff" - use the exec runner, execute a binary
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = %(here)s/.venv/bin/ruff
+# ruff.options = --fix REVISION_SCRIPT_FILENAME
+
+# 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

backend/alembic/README

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+Generic single-database configuration.

backend/alembic/env.py

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+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 app.models.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()

backend/alembic/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, 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:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

backend/alembic/versions/b583fd2cf202_create_initial_database_schema_from_.py

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+"""Create initial database schema from scratch
+
+Revision ID: b583fd2cf202
+Revises: f9fbfa70654e
+Create Date: 2025-11-22 21:02:08.977255
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'b583fd2cf202'
+down_revision: Union[str, None] = 'f9fbfa70654e'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Create tables in dependency order (no foreign keys first, then with foreign keys)
+
+    # Users table (no dependencies)
+    op.create_table('users',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('email', sa.String(length=255), nullable=False),
+        sa.Column('hashed_password', sa.String(length=255), nullable=False),
+        sa.Column('first_name', sa.String(length=100), nullable=False),
+        sa.Column('last_name', sa.String(length=100), nullable=False),
+        sa.Column('phone', sa.String(length=20), nullable=True),
+        sa.Column('address', sa.Text(), nullable=True),
+        sa.Column('role', sa.Enum('member', 'admin', 'super_admin', name='userrole'), nullable=False),
+        sa.Column('is_active', sa.Boolean(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.Column('last_login', sa.DateTime(), nullable=True),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_users_email'), 'users', ['email'], unique=True)
+    op.create_index(op.f('ix_users_id'), 'users', ['id'], unique=False)
+
+    # Membership tiers table (no dependencies)
+    op.create_table('membership_tiers',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('name', sa.String(length=100), nullable=False),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.Column('annual_fee', sa.Float(), nullable=False),
+        sa.Column('benefits', sa.Text(), nullable=True),
+        sa.Column('is_active', sa.Boolean(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_membership_tiers_id'), 'membership_tiers', ['id'], unique=False)
+    op.create_index('ix_membership_tiers_name', 'membership_tiers', ['name'], unique=True)
+
+    # Volunteer roles table (no dependencies)
+    op.create_table('volunteer_roles',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('name', sa.String(length=100), nullable=False),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.Column('is_active', sa.Boolean(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_volunteer_roles_id'), 'volunteer_roles', ['id'], unique=False)
+
+    # Email templates table (no dependencies)
+    op.create_table('email_templates',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('template_key', sa.String(length=100), nullable=False),
+        sa.Column('name', sa.String(length=255), nullable=False),
+        sa.Column('subject', sa.String(length=255), nullable=False),
+        sa.Column('html_body', sa.Text(), nullable=False),
+        sa.Column('text_body', sa.Text(), nullable=True),
+        sa.Column('variables', sa.Text(), nullable=True),
+        sa.Column('is_active', sa.Boolean(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_email_templates_id'), 'email_templates', ['id'], unique=False)
+    op.create_index(op.f('ix_email_templates_template_key'), 'email_templates', ['template_key'], unique=True)
+
+    # Email bounces table (no dependencies)
+    op.create_table('email_bounces',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('email', sa.String(length=255), nullable=False),
+        sa.Column('bounce_type', sa.Enum('hard', 'soft', 'complaint', 'unsubscribe', name='bouncetype'), nullable=False),
+        sa.Column('bounce_reason', sa.String(length=500), nullable=True),
+        sa.Column('smtp2go_message_id', sa.String(length=255), nullable=True),
+        sa.Column('bounce_date', sa.DateTime(), nullable=False),
+        sa.Column('is_active', sa.Boolean(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_email_bounces_email'), 'email_bounces', ['email'], unique=False)
+    op.create_index(op.f('ix_email_bounces_id'), 'email_bounces', ['id'], unique=False)
+    op.create_index(op.f('ix_email_bounces_smtp2go_message_id'), 'email_bounces', ['smtp2go_message_id'], unique=False)
+
+    # Memberships table (depends on users, membership_tiers)
+    op.create_table('memberships',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('tier_id', sa.Integer(), nullable=False),
+        sa.Column('status', sa.Enum('active', 'expired', 'pending', 'cancelled', name='membershipstatus'), nullable=False),
+        sa.Column('start_date', sa.Date(), nullable=False),
+        sa.Column('end_date', sa.Date(), nullable=False),
+        sa.Column('auto_renew', sa.Boolean(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['tier_id'], ['membership_tiers.id'], ),
+        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_memberships_id'), 'memberships', ['id'], unique=False)
+
+    # Payments table (depends on users, memberships)
+    op.create_table('payments',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('membership_id', sa.Integer(), nullable=True),
+        sa.Column('amount', sa.Float(), nullable=False),
+        sa.Column('payment_method', sa.Enum('square', 'cash', 'check', 'dummy', name='paymentmethod'), nullable=False),
+        sa.Column('status', sa.Enum('pending', 'completed', 'failed', 'refunded', name='paymentstatus'), nullable=False),
+        sa.Column('transaction_id', sa.String(length=255), nullable=True),
+        sa.Column('payment_date', sa.DateTime(), nullable=True),
+        sa.Column('notes', sa.Text(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['membership_id'], ['memberships.id'], ),
+        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_payments_id'), 'payments', ['id'], unique=False)
+
+    # Events table (depends on users)
+    op.create_table('events',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('title', sa.String(length=255), nullable=False),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.Column('event_date', sa.DateTime(), nullable=False),
+        sa.Column('event_time', sa.String(length=10), nullable=True),
+        sa.Column('location', sa.String(length=255), nullable=True),
+        sa.Column('max_attendees', sa.Integer(), nullable=True),
+        sa.Column('status', sa.Enum('draft', 'published', 'cancelled', 'completed', name='eventstatus'), nullable=False),
+        sa.Column('created_by', sa.Integer(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['created_by'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_events_id'), 'events', ['id'], unique=False)
+
+    # Event RSVPs table (depends on events, users)
+    op.create_table('event_rsvps',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('event_id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('status', sa.Enum('pending', 'attending', 'not_attending', 'maybe', name='rsvpstatus'), nullable=False),
+        sa.Column('attended', sa.Boolean(), nullable=False),
+        sa.Column('notes', sa.Text(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['event_id'], ['events.id'], ),
+        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_event_rsvps_id'), 'event_rsvps', ['id'], unique=False)
+    op.create_index('ix_event_rsvps_event_id_user_id', 'event_rsvps', ['event_id', 'user_id'], unique=True)
+
+    # Volunteer assignments table (depends on users, volunteer_roles)
+    op.create_table('volunteer_assignments',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('role_id', sa.Integer(), nullable=False),
+        sa.Column('assigned_date', sa.Date(), nullable=False),
+        sa.Column('is_active', sa.Boolean(), nullable=False),
+        sa.Column('notes', sa.Text(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['role_id'], ['volunteer_roles.id'], ),
+        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_volunteer_assignments_id'), 'volunteer_assignments', ['id'], unique=False)
+
+    # Volunteer schedules table (depends on volunteer_assignments)
+    op.create_table('volunteer_schedules',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('assignment_id', sa.Integer(), nullable=False),
+        sa.Column('schedule_date', sa.Date(), nullable=False),
+        sa.Column('start_time', sa.DateTime(), nullable=False),
+        sa.Column('end_time', sa.DateTime(), nullable=False),
+        sa.Column('location', sa.String(length=255), nullable=True),
+        sa.Column('notes', sa.Text(), nullable=True),
+        sa.Column('completed', sa.Boolean(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['assignment_id'], ['volunteer_assignments.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_volunteer_schedules_id'), 'volunteer_schedules', ['id'], unique=False)
+
+    # Certificates table (depends on users)
+    op.create_table('certificates',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('certificate_name', sa.String(length=255), nullable=False),
+        sa.Column('issuing_organization', sa.String(length=255), nullable=True),
+        sa.Column('issue_date', sa.Date(), nullable=False),
+        sa.Column('expiry_date', sa.Date(), nullable=True),
+        sa.Column('certificate_number', sa.String(length=100), nullable=True),
+        sa.Column('file_path', sa.String(length=500), nullable=True),
+        sa.Column('notes', sa.Text(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_certificates_id'), 'certificates', ['id'], unique=False)
+
+    # Files table (depends on users, membership_tiers)
+    op.create_table('files',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('filename', sa.String(length=255), nullable=False),
+        sa.Column('original_filename', sa.String(length=255), nullable=False),
+        sa.Column('file_path', sa.String(length=500), nullable=False),
+        sa.Column('file_size', sa.Integer(), nullable=False),
+        sa.Column('mime_type', sa.String(length=100), nullable=False),
+        sa.Column('min_tier_id', sa.Integer(), nullable=True),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.Column('uploaded_by', sa.Integer(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['min_tier_id'], ['membership_tiers.id'], ),
+        sa.ForeignKeyConstraint(['uploaded_by'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_files_id'), 'files', ['id'], unique=False)
+
+    # Notifications table (depends on users)
+    op.create_table('notifications',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('subject', sa.String(length=255), nullable=False),
+        sa.Column('message', sa.Text(), nullable=False),
+        sa.Column('email_sent', sa.Boolean(), nullable=False),
+        sa.Column('sent_at', sa.DateTime(), nullable=True),
+        sa.Column('error_message', sa.Text(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_notifications_id'), 'notifications', ['id'], unique=False)
+
+    # Password reset tokens table (depends on users)
+    op.create_table('password_reset_tokens',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('token', sa.String(length=255), nullable=False),
+        sa.Column('expires_at', sa.DateTime(), nullable=False),
+        sa.Column('used', sa.Boolean(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_password_reset_tokens_id'), 'password_reset_tokens', ['id'], unique=False)
+    op.create_index(op.f('ix_password_reset_tokens_token'), 'password_reset_tokens', ['token'], unique=True)
+
+
+def downgrade() -> None:
+    # Drop tables in reverse dependency order
+    op.drop_table('password_reset_tokens')
+    op.drop_table('notifications')
+    op.drop_table('files')
+    op.drop_table('certificates')
+    op.drop_table('volunteer_schedules')
+    op.drop_table('volunteer_assignments')
+    op.drop_table('event_rsvps')
+    op.drop_table('events')
+    op.drop_table('payments')
+    op.drop_table('memberships')
+    op.drop_table('email_bounces')
+    op.drop_table('email_templates')
+    op.drop_table('volunteer_roles')
+    op.drop_table('membership_tiers')
+    op.drop_table('users')
+
+    # Drop enums
+    op.execute("DROP TYPE IF EXISTS userrole")
+    op.execute("DROP TYPE IF EXISTS membershipstatus")
+    op.execute("DROP TYPE IF EXISTS paymentmethod")
+    op.execute("DROP TYPE IF EXISTS paymentstatus")
+    op.execute("DROP TYPE IF EXISTS eventstatus")
+    op.execute("DROP TYPE IF EXISTS rsvpstatus")
+    op.execute("DROP TYPE IF EXISTS bouncetype")

backend/alembic/versions/f9fbfa70654e_initial_baseline_migration.py

@@ -0,0 +1,26 @@
+"""Initial baseline migration
+
+Revision ID: f9fbfa70654e
+Revises:
+Create Date: 2025-11-22 20:53:20.604227
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'f9fbfa70654e'
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    pass
+
+
+def downgrade() -> None:
+    pass

backend/app/main.py

@@ -1,12 +1,34 @@
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
+from contextlib import asynccontextmanager
 from .core.config import settings
 from .api.v1 import api_router
+from .core.database import get_db
+from .core.init_db import init_default_data
+from sqlalchemy.orm import Session
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    """Handle startup and shutdown events"""
+    # Startup
+    db: Session = next(get_db())
+    try:
+        init_default_data(db)
+    finally:
+        db.close()
+    
+    yield
+    
+    # Shutdown (if needed)
+    pass
+
 
 app = FastAPI(
     title=settings.APP_NAME,
     version=settings.APP_VERSION,
-    openapi_url=f"{settings.API_V1_PREFIX}/openapi.json"
+    openapi_url=f"{settings.API_V1_PREFIX}/openapi.json",
+    lifespan=lifespan
 )
 
 # Set up CORS