from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker, declarative_base from app.core.config import settings # 数据库连接字符串，默认使用 SQLite 本地文件 SQLALCHEMY_DATABASE_URL = getattr(settings, "DATABASE_URL", "sqlite:///./designercep.db") # 创建数据库引擎 engine = create_engine( SQLALCHEMY_DATABASE_URL, pool_pre_ping=True, # 每次连接前 ping 一下，防止连接断开 pool_recycle=3600, # 1小时回收连接 pool_size=10, # 连接池大小 max_overflow=20, # 最大溢出连接数 connect_args={ "connect_timeout": 60, # 增加连接超时 "read_timeout": 60, # 增加读取超时 "write_timeout": 60 # 增加写入超时 } if not SQLALCHEMY_DATABASE_URL.startswith("sqlite") else {"check_same_thread": False} ) # 会话工厂与 ORM 基类 SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine) Base = declarative_base() def get_db(): # FastAPI 依赖注入使用的数据库会话 db = SessionLocal() try: yield db finally: db.close() def init_db(): # 初始化数据库（创建所有 ORM 映射的表） from app.models.user import User from app.models.group import PluginGroup from app.models.session import UserSession from app.models.business import FeatureConfig, VipConfig, CheckInConfig, CheckInRecord, PointsHistory from app.models.logs import PltProcessRecord, UserActionLog, PltPiece from app.models.chat import ChatSession, ChatMessage Base.metadata.create_all(bind=engine) ensure_migrations() seed_data() def seed_data(): """Ensure default data exists""" from app.models.group import PluginGroup from app.models.business import FeatureConfig, VipConfig, CheckInConfig db = SessionLocal() try: # Seed Groups default_group = db.query(PluginGroup).filter(PluginGroup.name == "default").first() if not default_group: print("Creating 'default' group...") new_group = PluginGroup(name="default", comment="Default User Group") db.add(new_group) # Seed VIP Config if db.query(VipConfig).count() == 0: print("Seeding VIP Config...") db.add(VipConfig(vip_type="vip", name="VIP会员", price=30.0, daily_quota=20, points_multiplier=1.5)) db.add(VipConfig(vip_type="svip", name="SVIP会员", price=88.0, daily_quota=-1, points_multiplier=2.0)) # Seed Checkin Config if db.query(CheckInConfig).count() == 0: print("Seeding Checkin Config...") db.add(CheckInConfig(consecutive_days=1, base_points=10, bonus_points=0, total_points=10)) db.add(CheckInConfig(consecutive_days=3, base_points=10, bonus_points=5, total_points=15)) db.add(CheckInConfig(consecutive_days=7, base_points=10, bonus_points=20, total_points=30)) # Seed Features if db.query(FeatureConfig).count() == 0: print("Seeding Features...") db.add(FeatureConfig(feature_key="ai_remove_bg", feature_name="智能抠图", points_cost=10, category="ai")) db.commit() except Exception as e: print(f"Error seeding data: {e}") finally: db.close() def ensure_migrations(): # 轻量级迁移：为 SQLite 动态添加缺失列 if not SQLALCHEMY_DATABASE_URL.startswith("sqlite"): return with engine.connect() as conn: def has_column(table: str, col: str) -> bool: try: rows = conn.exec_driver_sql(f"PRAGMA table_info('{table}')").fetchall() names = {r[1] for r in rows} if rows else set() return col in names except Exception: return False def add_col(table: str, col: str, type_sql: str): try: conn.exec_driver_sql(f"ALTER TABLE {table} ADD COLUMN {col} {type_sql}") except Exception as e: print(f"Migration error for {table}.{col}: {e}") # user_sessions 需要的列 if not has_column("user_sessions", "login_at"): add_col("user_sessions", "login_at", "TIMESTAMP NULL") if not has_column("user_sessions", "logout_at"): add_col("user_sessions", "logout_at", "TIMESTAMP NULL") if not has_column("user_sessions", "duration_seconds"): add_col("user_sessions", "duration_seconds", "INTEGER NULL") if not has_column("user_sessions", "last_seen_at"): add_col("user_sessions", "last_seen_at", "TIMESTAMP NULL") # users 需要的列 if not has_column("users", "group_id"): add_col("users", "group_id", "INTEGER NULL REFERENCES plugin_groups(id)") if not has_column("users", "permissions"): add_col("users", "permissions", "TEXT NULL") if not has_column("users", "expire_date"): add_col("users", "expire_date", "TIMESTAMP NULL") # users email & verification columns if not has_column("users", "email"): add_col("users", "email", "VARCHAR(255) NULL") if not has_column("users", "is_verified"): add_col("users", "is_verified", "BOOLEAN DEFAULT 0") if not has_column("users", "verification_code"): add_col("users", "verification_code", "VARCHAR(6) NULL") if not has_column("users", "reset_token"): add_col("users", "reset_token", "VARCHAR(128) NULL") if not has_column("users", "reset_token_expire"): add_col("users", "reset_token_expire", "TIMESTAMP NULL") # users profile & vip columns if not has_column("users", "nickname"): add_col("users", "nickname", "VARCHAR(50) NULL") if not has_column("users", "avatar"): add_col("users", "avatar", "VARCHAR(500) NULL") if not has_column("users", "points"): add_col("users", "points", "INTEGER DEFAULT 0") if not has_column("users", "level"): add_col("users", "level", "INTEGER DEFAULT 1") if not has_column("users", "vip_type"): add_col("users", "vip_type", "VARCHAR(20) DEFAULT 'none'") if not has_column("users", "vip_expire"): add_col("users", "vip_expire", "TIMESTAMP NULL") if not has_column("users", "vip_daily_quota"): add_col("users", "vip_daily_quota", "INTEGER DEFAULT 0") if not has_column("users", "vip_quota_reset_date"): add_col("users", "vip_quota_reset_date", "DATE NULL") if not has_column("users", "total_check_in_days"): add_col("users", "total_check_in_days", "INTEGER DEFAULT 0") if not has_column("users", "consecutive_check_in"): add_col("users", "consecutive_check_in", "INTEGER DEFAULT 0") if not has_column("users", "last_check_in_date"): add_col("users", "last_check_in_date", "DATE NULL")