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