init

transport/backend/alembic/env.py

@@ -0,0 +1,61 @@
+import os
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# Import models to ensure they are registered with Base
+from app.database import Base
+from app.models import Vehicle, Position, Event
+
+config = context.config
+
+# Override sqlalchemy.url from environment if available
+database_url = os.getenv("DATABASE_URL")
+if database_url:
+    config.set_main_option("sqlalchemy.url", database_url)
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode."""
+    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."""
+    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()

transport/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"}

transport/backend/alembic/versions/001_initial.py

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+"""Initial migration
+
+Revision ID: 001
+Revises:
+Create Date: 2025-12-18
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision: str = '001'
+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:
+    # Create vehicles table
+    op.create_table(
+        'vehicles',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('name', sa.String(100), nullable=False),
+        sa.Column('type', sa.String(50), nullable=True, default='car'),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.PrimaryKeyConstraint('id')
+    )
+
+    # Create positions table
+    op.create_table(
+        'positions',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('vehicle_id', sa.Integer(), nullable=False),
+        sa.Column('timestamp', sa.DateTime(), nullable=False),
+        sa.Column('lat', sa.Float(), nullable=False),
+        sa.Column('lon', sa.Float(), nullable=False),
+        sa.Column('speed', sa.Float(), nullable=True, default=0.0),
+        sa.Column('heading', sa.Float(), nullable=True, default=0.0),
+        sa.ForeignKeyConstraint(['vehicle_id'], ['vehicles.id'], ondelete='CASCADE'),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index('idx_positions_vehicle_ts', 'positions', ['vehicle_id', 'timestamp'])
+
+    # Create events table
+    op.create_table(
+        'events',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('vehicle_id', sa.Integer(), nullable=False),
+        sa.Column('timestamp', sa.DateTime(), nullable=False),
+        sa.Column('type', sa.String(50), nullable=False),
+        sa.Column('payload', postgresql.JSONB(), nullable=True, default={}),
+        sa.ForeignKeyConstraint(['vehicle_id'], ['vehicles.id'], ondelete='CASCADE'),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index('idx_events_vehicle_ts', 'events', ['vehicle_id', 'timestamp'])
+    op.create_index('idx_events_type', 'events', ['type'])
+
+    # Insert demo vehicles
+    op.execute("""
+        INSERT INTO vehicles (name, type, created_at) VALUES
+        ('Автобус А-101', 'bus', NOW()),
+        ('Автобус А-102', 'bus', NOW()),
+        ('Грузовик Г-201', 'truck', NOW()),
+        ('Легковой Л-301', 'car', NOW()),
+        ('Легковой Л-302', 'car', NOW())
+    """)
+
+
+def downgrade() -> None:
+    op.drop_table('events')
+    op.drop_table('positions')
+    op.drop_table('vehicles')