AR 15 M4
75048bb88e
Первый кусок Спринта 2: подключаем SQLite через SQLAlchemy 2.0 (async, ORM-стиль) и Alembic для миграций. Схема выбрана под будущий рост — в threads сразу заведены nullable user_id и agent_config_id, чтобы Спринты 3+ не тащили миграции задним числом. - requirements.txt: sqlalchemy[asyncio]==2.0.36, aiosqlite==0.20.0, alembic==1.14.0. - config: database_url + sqlite_path (./data/sqlite/app.db). - db/base.py: DeclarativeBase; db/session.py: async engine, async_sessionmaker, get_session — FastAPI-dependency. - db/models/Thread: id, name, user_id?, agent_config_id?, created_at, updated_at; relationship messages с cascade all, delete-orphan. - db/models/Message: id, thread_id FK CASCADE, role, text, sources_json, assembled_prompt, created_at. - Alembic инициализирован через async-шаблон, env.py доработан: sys.path, url из settings, target_metadata = Base.metadata. - Начальная миграция e7199587be4b применена, таблицы threads/messages с индексами на FK и nullable-колонки созданы в data/sqlite/app.db. - .gitignore: исключаем data/sqlite/ (БД — артефакт, не исходник). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
57 lines
2.2 KiB
Python
57 lines
2.2 KiB
Python
"""initial: threads and messages
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Revision ID: e7199587be4b
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Revises:
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Create Date: 2026-04-23 10:03:23.691401
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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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# revision identifiers, used by Alembic.
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revision: str = 'e7199587be4b'
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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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# ### commands auto generated by Alembic - please adjust! ###
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op.create_table('threads',
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sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
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sa.Column('name', sa.String(length=200), nullable=False),
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sa.Column('user_id', sa.Integer(), nullable=True),
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sa.Column('agent_config_id', sa.Integer(), nullable=True),
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sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
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sa.Column('updated_at', sa.DateTime(timezone=True), nullable=False),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_threads_agent_config_id'), 'threads', ['agent_config_id'], unique=False)
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op.create_index(op.f('ix_threads_user_id'), 'threads', ['user_id'], unique=False)
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op.create_table('messages',
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sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
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sa.Column('thread_id', sa.Integer(), nullable=False),
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sa.Column('role', sa.String(length=20), nullable=False),
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sa.Column('text', sa.Text(), nullable=False),
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sa.Column('sources_json', sa.Text(), nullable=True),
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sa.Column('assembled_prompt', sa.Text(), nullable=True),
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sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
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sa.ForeignKeyConstraint(['thread_id'], ['threads.id'], ondelete='CASCADE'),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_messages_thread_id'), 'messages', ['thread_id'], unique=False)
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# ### end Alembic commands ###
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def downgrade() -> None:
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# ### commands auto generated by Alembic - please adjust! ###
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op.drop_index(op.f('ix_messages_thread_id'), table_name='messages')
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op.drop_table('messages')
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op.drop_index(op.f('ix_threads_user_id'), table_name='threads')
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op.drop_index(op.f('ix_threads_agent_config_id'), table_name='threads')
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op.drop_table('threads')
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# ### end Alembic commands ###
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