init

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

@@ -0,0 +1,75 @@
+"""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')