event database migration

server/alembic/README

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+Generic single-database configuration.

server/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
+
+import sys
+sys.path.append('/workspace')
+import os
+from dotenv import load_dotenv
+from server.models import Base
+
+# .env laden (optional)
+env_path = os.path.abspath(os.path.join(os.path.dirname(__file__), '../../.env'))
+print(f"Loading environment variables from: {env_path}")
+load_dotenv(env_path)
+
+# Datenbank-Zugangsdaten aus .env
+DB_USER = os.getenv("DB_USER")
+DB_PASSWORD = os.getenv("DB_PASSWORD")
+DB_HOST = os.getenv("DB_HOST", "localhost")
+DB_PORT = os.getenv("DB_PORT", "3306")
+DB_NAME = os.getenv("DB_NAME")
+
+# 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)
+
+DATABASE_URL = (
+    f"mysql+pymysql://{DB_USER}:{DB_PASSWORD}@{DB_HOST}:{DB_PORT}/{DB_NAME}"
+)
+
+print(f"Using DATABASE_URL: {DATABASE_URL}")
+
+config.set_main_option("sqlalchemy.url", DATABASE_URL)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+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()

server/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:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

server/alembic/versions/c1178d5fa549_event_db.py

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+"""event_db
+
+Revision ID: c1178d5fa549
+Revises: f7dd3165f238
+Create Date: 2025-06-08 12:29:28.366231
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision: str = 'c1178d5fa549'
+down_revision: Union[str, None] = 'f7dd3165f238'
+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('events',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('client_uuid', sa.String(length=36), nullable=False),
+    sa.Column('title', sa.String(length=100), nullable=False),
+    sa.Column('description', sa.Text(), nullable=True),
+    sa.Column('start', sa.TIMESTAMP(timezone=True), nullable=False),
+    sa.Column('end', sa.TIMESTAMP(timezone=True), nullable=False),
+    sa.Column('event_type', sa.Enum('presentation', 'website', 'video', 'message', 'other', 'webuntis', name='eventtype'), nullable=False),
+    sa.Column('created_at', sa.TIMESTAMP(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP'), nullable=True),
+    sa.Column('updated_at', sa.TIMESTAMP(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP'), nullable=True),
+    sa.Column('created_by', sa.Integer(), nullable=False),
+    sa.Column('updated_by', sa.Integer(), nullable=True),
+    sa.Column('is_active', sa.Boolean(), nullable=False),
+    sa.ForeignKeyConstraint(['client_uuid'], ['clients.uuid'], ),
+    sa.ForeignKeyConstraint(['created_by'], ['users.id'], ),
+    sa.ForeignKeyConstraint(['updated_by'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_events_client_uuid'), 'events', ['client_uuid'], unique=False)
+    op.create_index(op.f('ix_events_end'), 'events', ['end'], unique=False)
+    op.create_index(op.f('ix_events_start'), 'events', ['start'], unique=False)
+    op.create_table('event_media',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('event_id', sa.Integer(), nullable=False),
+    sa.Column('media_type', sa.Enum('presentation', 'website', 'video', 'message', 'other', 'webuntis', name='eventtype'), nullable=False),
+    sa.Column('url', sa.String(length=255), nullable=False),
+    sa.Column('order', sa.Integer(), nullable=True),
+    sa.Column('autoplay', sa.Boolean(), nullable=True),
+    sa.Column('loop', sa.Boolean(), nullable=True),
+    sa.Column('volume', sa.Float(), nullable=True),
+    sa.ForeignKeyConstraint(['event_id'], ['events.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.add_column('clients', sa.Column('is_active', sa.Boolean(), nullable=False))
+    op.create_index(op.f('ix_clients_hardware_hash'), 'clients', ['hardware_hash'], unique=False)
+    op.create_index(op.f('ix_clients_ip_address'), 'clients', ['ip_address'], unique=False)
+    op.add_column('users', sa.Column('is_active', sa.Boolean(), nullable=False))
+    op.alter_column('users', 'password_hash',
+               existing_type=mysql.VARCHAR(length=60),
+               type_=sa.String(length=128),
+               existing_nullable=False)
+    op.drop_index(op.f('username'), table_name='users')
+    op.create_index(op.f('ix_users_username'), 'users', ['username'], unique=True)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_users_username'), table_name='users')
+    op.create_index(op.f('username'), 'users', ['username'], unique=True)
+    op.alter_column('users', 'password_hash',
+               existing_type=sa.String(length=128),
+               type_=mysql.VARCHAR(length=60),
+               existing_nullable=False)
+    op.drop_column('users', 'is_active')
+    op.drop_index(op.f('ix_clients_ip_address'), table_name='clients')
+    op.drop_index(op.f('ix_clients_hardware_hash'), table_name='clients')
+    op.drop_column('clients', 'is_active')
+    op.drop_table('event_media')
+    op.drop_index(op.f('ix_events_start'), table_name='events')
+    op.drop_index(op.f('ix_events_end'), table_name='events')
+    op.drop_index(op.f('ix_events_client_uuid'), table_name='events')
+    op.drop_table('events')
+    # ### end Alembic commands ###

server/alembic/versions/f7dd3165f238_initial.py

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+"""initial
+
+Revision ID: f7dd3165f238
+Revises: 
+Create Date: 2025-06-08 12:25:27.174339
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'f7dd3165f238'
+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:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    pass
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    pass
+    # ### end Alembic commands ###