presenton/servers/fastapi/alembic/env.py
sudipnext 4c271170b5 feat: Add chat history management and asset generation features
- Introduced a new `ChatHistoryMessageModel` to persist chat messages in the database.
- Implemented a migration script to create the `chat_history_messages` table.
- Enhanced chat services to support storing and retrieving chat history.
- Added functionality for generating multiple media assets in a single API call.
- Updated the chat UI to display assistant activities and tool usage more effectively.
- Refactored API calls to use absolute URLs for better reliability.
2026-04-26 13:12:50 +05:45

105 lines
3.7 KiB
Python

import os
import sys
from logging.config import fileConfig
from pathlib import Path
from alembic import context
from sqlalchemy import engine_from_config, pool
from sqlmodel import SQLModel
# Make sure all models can be imported when alembic runs standalone.
sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
# Import every SQL model so they register with SQLModel.metadata before
# autogenerate or migration execution reads it.
from models.sql.async_presentation_generation_status import ( # noqa: F401, E402
AsyncPresentationGenerationTaskModel,
)
from models.sql.chat_history_message import ChatHistoryMessageModel # noqa: F401, E402
from models.sql.image_asset import ImageAsset # noqa: F401, E402
from models.sql.key_value import KeyValueSqlModel # noqa: F401, E402
from models.sql.ollama_pull_status import OllamaPullStatus # noqa: F401, E402
from models.sql.presentation import PresentationModel # noqa: F401, E402
from models.sql.presentation_layout_code import ( # noqa: F401, E402
PresentationLayoutCodeModel,
)
from models.sql.slide import SlideModel # noqa: F401, E402
from models.sql.template import TemplateModel # noqa: F401, E402
from models.sql.template_create_info import TemplateCreateInfoModel # noqa: F401, E402
from models.sql.webhook_subscription import WebhookSubscription # noqa: F401, E402
alembic_config = context.config
if alembic_config.config_file_name is not None:
fileConfig(alembic_config.config_file_name)
target_metadata = SQLModel.metadata
# alembic.ini sets this so Config validates; treat it as "unset" for URL resolution.
_CLI_PLACEHOLDER_DB_URL = "sqlite:///placeholder"
def _to_sync_database_url(database_url: str) -> str:
# Preserve slash counts for sqlite URLs so Windows paths stay valid.
if database_url.startswith("sqlite+aiosqlite:///"):
return "sqlite:///" + database_url[len("sqlite+aiosqlite:///") :]
if database_url.startswith("postgresql+asyncpg://"):
return "postgresql://" + database_url[len("postgresql+asyncpg://") :]
if database_url.startswith("mysql+aiomysql://"):
return "mysql://" + database_url[len("mysql+aiomysql://") :]
return database_url
def _get_url() -> str:
"""
Prefer the URL injected by migrations.py via config.set_main_option,
falling back to the DATABASE_URL environment variable or a local SQLite DB.
"""
configured = alembic_config.get_main_option("sqlalchemy.url")
if configured and configured != _CLI_PLACEHOLDER_DB_URL:
return configured
from utils.db_utils import get_database_url_and_connect_args
url, _ = get_database_url_and_connect_args()
return _to_sync_database_url(url)
def run_migrations_offline() -> None:
"""Generate SQL script without connecting to the database."""
url = _get_url()
context.configure(
url=url,
target_metadata=target_metadata,
literal_binds=True,
dialect_opts={"paramstyle": "named"},
compare_type=True,
)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online() -> None:
"""Run migrations against the live database."""
configuration = dict(alembic_config.get_section(alembic_config.config_ini_section) or {})
configuration["sqlalchemy.url"] = _get_url()
connectable = engine_from_config(
configuration,
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
with connectable.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata,
compare_type=True,
)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()