517 lines
27 KiB
Python
517 lines
27 KiB
Python
"""PostgreSQL 数据库管理器 - 支持知识库和业务数据"""
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import json
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import os
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from contextlib import asynccontextmanager
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from psycopg_pool import AsyncConnectionPool
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from sqlalchemy import text
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from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
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from sqlalchemy.orm import declarative_base
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from yuxi.storage.postgres.models_business import Base as BusinessBase
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from yuxi.storage.postgres.models_knowledge import Base as KnowledgeBase
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from yuxi.utils import logger
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from yuxi.utils.singleton import SingletonMeta
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# 合并两个 Base
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CombinedBase = declarative_base()
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# 继承所有表
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for module in [KnowledgeBase, BusinessBase]:
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for table_name in dir(module):
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table = getattr(module, table_name)
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if isinstance(table, type) and hasattr(table, "__tablename__"):
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setattr(CombinedBase, table_name, table)
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class PostgresManager(metaclass=SingletonMeta):
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"""PostgreSQL 数据库管理器 - 支持知识库和业务数据"""
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# 知识库 PostgreSQL URL 环境变量名
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KB_DATABASE_URL_ENV = "POSTGRES_URL"
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def __init__(self):
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self.async_engine = None
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self.AsyncSession = None
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self.langgraph_pool = None
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self._initialized = False
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def initialize(self):
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"""初始化数据库连接"""
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if self._initialized:
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return
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db_url = os.getenv(self.KB_DATABASE_URL_ENV)
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if not db_url:
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logger.error(
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f"环境变量 {self.KB_DATABASE_URL_ENV} 未设置，"
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"请在 docker-compose.yml 或 .env 中配置 PostgreSQL 连接字符串"
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)
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return
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try:
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# 创建异步 SQLAlchemy 引擎
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self.async_engine = create_async_engine(
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db_url,
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json_serializer=lambda obj: json.dumps(obj, ensure_ascii=False),
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json_deserializer=json.loads,
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pool_pre_ping=True,
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pool_recycle=1800,
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pool_size=10,
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max_overflow=20,
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)
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# 创建异步会话工厂
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self.AsyncSession = async_sessionmaker(
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bind=self.async_engine,
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class_=AsyncSession,
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expire_on_commit=False,
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)
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# ==========================================
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# 2. 为 LangGraph 专门初始化一个原生 psycopg_pool
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# ==========================================
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# ⚠️ 注意：psycopg 不认识 "+asyncpg" 这样的 SQLAlchemy 方言标识。
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# 如果你的 db_url 是 "postgresql+asyncpg://user:pwd@host/db"，
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# 需要把它清洗成标准的 "postgresql://user:pwd@host/db"
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langgraph_db_url = db_url.replace("+asyncpg", "").replace("+psycopg", "")
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# 创建 LangGraph 专属连接池
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self.langgraph_pool = AsyncConnectionPool(
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conninfo=langgraph_db_url,
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max_size=10, # 根据你的 Agent 并发情况设置，通常 5-10 足够了
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kwargs={"autocommit": True}, # LangGraph Checkpoint 强依赖 autocommit
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)
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self._initialized = True
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logger.info(f"PostgreSQL manager initialized for knowledge base: {db_url.split('@')[0]}://***")
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except Exception as e:
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logger.error(f"Failed to initialize PostgreSQL manager: {e}")
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# 不抛出异常，允许应用启动，但在使用时会报错
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def _check_initialized(self):
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"""检查是否已初始化"""
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if not self._initialized:
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raise RuntimeError("PostgreSQL manager not initialized. Please check configuration.")
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async def create_tables(self):
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"""创建所有表（知识库和业务表）"""
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self._check_initialized()
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async with self.async_engine.begin() as conn:
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await conn.run_sync(KnowledgeBase.metadata.create_all)
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await conn.run_sync(BusinessBase.metadata.create_all)
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logger.info("PostgreSQL tables created/checked (knowledge + business)")
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async def create_business_tables(self):
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"""创建所有业务数据表"""
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self._check_initialized()
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async with self.async_engine.begin() as conn:
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await conn.run_sync(BusinessBase.metadata.create_all)
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logger.info("PostgreSQL business tables created/checked")
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async def drop_tables(self):
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"""删除所有表（慎用！）"""
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self._check_initialized()
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async with self.async_engine.begin() as conn:
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await conn.run_sync(BusinessBase.metadata.drop_all)
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await conn.run_sync(KnowledgeBase.metadata.drop_all)
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logger.info("PostgreSQL tables dropped")
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async def ensure_knowledge_schema(self):
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"""确保知识库 schema 包含所有必要字段"""
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self._check_initialized()
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stmts = [
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"ALTER TABLE IF EXISTS knowledge_bases ADD COLUMN IF NOT EXISTS embedding_model_spec VARCHAR(512)",
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"ALTER TABLE IF EXISTS knowledge_bases ADD COLUMN IF NOT EXISTS llm_model_spec VARCHAR(512)",
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"ALTER TABLE IF EXISTS knowledge_bases DROP COLUMN IF EXISTS embed_info",
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"ALTER TABLE IF EXISTS knowledge_bases DROP COLUMN IF EXISTS llm_info",
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"ALTER TABLE IF EXISTS knowledge_bases ADD COLUMN IF NOT EXISTS query_params JSONB",
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"ALTER TABLE IF EXISTS knowledge_bases ADD COLUMN IF NOT EXISTS additional_params JSONB",
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"ALTER TABLE IF EXISTS knowledge_bases ADD COLUMN IF NOT EXISTS share_config JSONB",
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"ALTER TABLE IF EXISTS knowledge_bases ADD COLUMN IF NOT EXISTS mindmap JSONB",
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"ALTER TABLE IF EXISTS knowledge_bases ADD COLUMN IF NOT EXISTS sample_questions JSONB",
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"ALTER TABLE IF EXISTS knowledge_bases ADD COLUMN IF NOT EXISTS updated_at TIMESTAMPTZ",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS parent_id VARCHAR(64)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS original_filename VARCHAR(512)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS file_type VARCHAR(64)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS path VARCHAR(1024)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS minio_url VARCHAR(1024)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS markdown_file VARCHAR(1024)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS status VARCHAR(32)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS content_hash VARCHAR(128)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS file_size BIGINT",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS content_type VARCHAR(64)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS processing_params JSONB",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS is_folder BOOLEAN",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS error_message TEXT",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS created_by VARCHAR(64)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS updated_by VARCHAR(64)",
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"ALTER TABLE IF EXISTS knowledge_files ADD COLUMN IF NOT EXISTS updated_at TIMESTAMPTZ",
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"ALTER TABLE IF EXISTS evaluation_datasets ADD COLUMN IF NOT EXISTS created_by VARCHAR(64)",
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"ALTER TABLE IF EXISTS evaluation_datasets ADD COLUMN IF NOT EXISTS updated_at TIMESTAMPTZ",
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"ALTER TABLE IF EXISTS evaluation_datasets ADD COLUMN IF NOT EXISTS build_metadata JSONB",
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"ALTER TABLE IF EXISTS evaluation_runs ADD COLUMN IF NOT EXISTS metrics JSONB",
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"ALTER TABLE IF EXISTS evaluation_runs ADD COLUMN IF NOT EXISTS overall_score DOUBLE PRECISION",
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"ALTER TABLE IF EXISTS evaluation_runs ADD COLUMN IF NOT EXISTS total_items INTEGER",
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"ALTER TABLE IF EXISTS evaluation_runs ADD COLUMN IF NOT EXISTS completed_items INTEGER",
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"ALTER TABLE IF EXISTS evaluation_runs ADD COLUMN IF NOT EXISTS started_at TIMESTAMPTZ",
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"ALTER TABLE IF EXISTS evaluation_runs ADD COLUMN IF NOT EXISTS completed_at TIMESTAMPTZ",
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"ALTER TABLE IF EXISTS evaluation_runs ADD COLUMN IF NOT EXISTS created_by VARCHAR(64)",
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"ALTER TABLE IF EXISTS evaluation_run_items ADD COLUMN IF NOT EXISTS gold_chunk_ids JSONB",
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"ALTER TABLE IF EXISTS evaluation_run_items ADD COLUMN IF NOT EXISTS gold_answer TEXT",
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"ALTER TABLE IF EXISTS evaluation_run_items ADD COLUMN IF NOT EXISTS generated_answer TEXT",
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"ALTER TABLE IF EXISTS evaluation_run_items ADD COLUMN IF NOT EXISTS retrieved_chunks JSONB",
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"ALTER TABLE IF EXISTS evaluation_run_items ADD COLUMN IF NOT EXISTS metrics JSONB",
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"ALTER TABLE IF EXISTS evaluation_run_items ADD COLUMN IF NOT EXISTS created_at TIMESTAMPTZ",
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"""
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CREATE TABLE IF NOT EXISTS evaluation_datasets (
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id SERIAL PRIMARY KEY,
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dataset_id VARCHAR(64) NOT NULL UNIQUE,
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kb_id VARCHAR(80) NOT NULL REFERENCES knowledge_bases(kb_id) ON DELETE CASCADE,
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name VARCHAR(255) NOT NULL,
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description TEXT,
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item_count INTEGER DEFAULT 0,
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has_gold_chunks BOOLEAN DEFAULT FALSE,
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has_gold_answers BOOLEAN DEFAULT FALSE,
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build_metadata JSONB,
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created_by VARCHAR(64),
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created_at TIMESTAMPTZ DEFAULT NOW(),
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updated_at TIMESTAMPTZ DEFAULT NOW()
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)
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""",
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"""
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CREATE TABLE IF NOT EXISTS evaluation_dataset_items (
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id SERIAL PRIMARY KEY,
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item_id VARCHAR(64) NOT NULL UNIQUE,
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dataset_id VARCHAR(64) NOT NULL REFERENCES evaluation_datasets(dataset_id) ON DELETE CASCADE,
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kb_id VARCHAR(80) NOT NULL REFERENCES knowledge_bases(kb_id) ON DELETE CASCADE,
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item_index INTEGER NOT NULL,
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query_text TEXT NOT NULL,
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gold_chunk_ids JSONB,
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gold_answer TEXT,
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created_at TIMESTAMPTZ DEFAULT NOW(),
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CONSTRAINT uq_evaluation_dataset_items_dataset_index UNIQUE (dataset_id, item_index)
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)
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""",
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"""
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CREATE TABLE IF NOT EXISTS evaluation_runs (
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id SERIAL PRIMARY KEY,
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run_id VARCHAR(64) NOT NULL UNIQUE,
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kb_id VARCHAR(80) NOT NULL REFERENCES knowledge_bases(kb_id) ON DELETE CASCADE,
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dataset_id VARCHAR(64) REFERENCES evaluation_datasets(dataset_id) ON DELETE SET NULL,
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status VARCHAR(32) DEFAULT 'running',
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retrieval_config JSONB,
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metrics JSONB,
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overall_score DOUBLE PRECISION,
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total_items INTEGER DEFAULT 0,
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completed_items INTEGER DEFAULT 0,
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started_at TIMESTAMPTZ DEFAULT NOW(),
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completed_at TIMESTAMPTZ,
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created_by VARCHAR(64)
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)
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""",
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"""
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CREATE TABLE IF NOT EXISTS evaluation_run_items (
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id SERIAL PRIMARY KEY,
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run_id VARCHAR(64) NOT NULL REFERENCES evaluation_runs(run_id) ON DELETE CASCADE,
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dataset_item_id VARCHAR(64) REFERENCES evaluation_dataset_items(item_id) ON DELETE SET NULL,
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item_index INTEGER NOT NULL,
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query_text TEXT NOT NULL,
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gold_chunk_ids JSONB,
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gold_answer TEXT,
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generated_answer TEXT,
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retrieved_chunks JSONB,
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metrics JSONB,
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created_at TIMESTAMPTZ DEFAULT NOW(),
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CONSTRAINT uq_evaluation_run_items_run_index UNIQUE (run_id, item_index)
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)
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""",
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"""
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CREATE TABLE IF NOT EXISTS knowledge_chunks (
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id SERIAL PRIMARY KEY,
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chunk_id VARCHAR(128) NOT NULL UNIQUE,
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file_id VARCHAR(64) NOT NULL REFERENCES knowledge_files(file_id) ON DELETE CASCADE,
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kb_id VARCHAR(80) NOT NULL REFERENCES knowledge_bases(kb_id) ON DELETE CASCADE,
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chunk_index INTEGER NOT NULL,
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content TEXT NOT NULL,
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start_char_pos INTEGER,
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end_char_pos INTEGER,
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start_token_pos INTEGER,
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end_token_pos INTEGER,
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graph_indexed BOOLEAN DEFAULT FALSE,
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ent_ids JSONB,
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tags JSONB,
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extraction_result JSONB,
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created_at TIMESTAMPTZ DEFAULT NOW(),
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updated_at TIMESTAMPTZ DEFAULT NOW()
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)
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""",
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"ALTER TABLE IF EXISTS knowledge_chunks ADD COLUMN IF NOT EXISTS extraction_result JSONB",
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"""
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CREATE TABLE IF NOT EXISTS knowledge_graph_entities (
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id SERIAL PRIMARY KEY,
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entity_id VARCHAR(64) NOT NULL UNIQUE,
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kb_id VARCHAR(80) NOT NULL REFERENCES knowledge_bases(kb_id) ON DELETE CASCADE,
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normalized_name VARCHAR(512) NOT NULL,
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label VARCHAR(128) NOT NULL,
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name VARCHAR(512) NOT NULL,
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attributes JSONB,
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created_at TIMESTAMPTZ DEFAULT NOW(),
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updated_at TIMESTAMPTZ DEFAULT NOW(),
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CONSTRAINT uq_knowledge_graph_entities_identity UNIQUE (kb_id, normalized_name, label)
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)
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""",
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"""
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CREATE TABLE IF NOT EXISTS knowledge_graph_entity_mentions (
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id SERIAL PRIMARY KEY,
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entity_id VARCHAR(64) NOT NULL REFERENCES knowledge_graph_entities(entity_id) ON DELETE CASCADE,
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kb_id VARCHAR(80) NOT NULL REFERENCES knowledge_bases(kb_id) ON DELETE CASCADE,
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file_id VARCHAR(64) NOT NULL REFERENCES knowledge_files(file_id) ON DELETE CASCADE,
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chunk_id VARCHAR(128) NOT NULL REFERENCES knowledge_chunks(chunk_id) ON DELETE CASCADE,
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created_at TIMESTAMPTZ DEFAULT NOW(),
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CONSTRAINT uq_knowledge_graph_entity_mentions_entity_chunk UNIQUE (entity_id, chunk_id)
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)
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""",
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"""
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CREATE TABLE IF NOT EXISTS knowledge_graph_triples (
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id SERIAL PRIMARY KEY,
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triple_id VARCHAR(64) NOT NULL UNIQUE,
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kb_id VARCHAR(80) NOT NULL REFERENCES knowledge_bases(kb_id) ON DELETE CASCADE,
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source_entity_id VARCHAR(64) NOT NULL REFERENCES knowledge_graph_entities(entity_id) ON DELETE CASCADE,
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target_entity_id VARCHAR(64) NOT NULL REFERENCES knowledge_graph_entities(entity_id) ON DELETE CASCADE,
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relation_type VARCHAR(256) NOT NULL,
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content TEXT NOT NULL,
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created_at TIMESTAMPTZ DEFAULT NOW(),
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updated_at TIMESTAMPTZ DEFAULT NOW()
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)
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""",
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"""
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CREATE TABLE IF NOT EXISTS knowledge_graph_triple_mentions (
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id SERIAL PRIMARY KEY,
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triple_id VARCHAR(64) NOT NULL REFERENCES knowledge_graph_triples(triple_id) ON DELETE CASCADE,
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kb_id VARCHAR(80) NOT NULL REFERENCES knowledge_bases(kb_id) ON DELETE CASCADE,
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file_id VARCHAR(64) NOT NULL REFERENCES knowledge_files(file_id) ON DELETE CASCADE,
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chunk_id VARCHAR(128) NOT NULL REFERENCES knowledge_chunks(chunk_id) ON DELETE CASCADE,
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text TEXT,
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extractor_type VARCHAR(128),
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created_at TIMESTAMPTZ DEFAULT NOW(),
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CONSTRAINT uq_knowledge_graph_triple_mentions_triple_chunk UNIQUE (triple_id, chunk_id)
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)
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""",
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"ALTER TABLE IF EXISTS knowledge_bases ALTER COLUMN kb_id TYPE VARCHAR(80)",
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"ALTER TABLE IF EXISTS knowledge_files ALTER COLUMN kb_id TYPE VARCHAR(80)",
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"ALTER TABLE IF EXISTS evaluation_datasets ALTER COLUMN kb_id TYPE VARCHAR(80)",
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"ALTER TABLE IF EXISTS evaluation_dataset_items ALTER COLUMN kb_id TYPE VARCHAR(80)",
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"ALTER TABLE IF EXISTS evaluation_runs ALTER COLUMN kb_id TYPE VARCHAR(80)",
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"CREATE INDEX IF NOT EXISTS idx_kb_type ON knowledge_bases(kb_type)",
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"CREATE INDEX IF NOT EXISTS idx_kb_name ON knowledge_bases(name)",
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"CREATE INDEX IF NOT EXISTS idx_kf_kb_id ON knowledge_files(kb_id)",
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"CREATE INDEX IF NOT EXISTS idx_kf_parent ON knowledge_files(parent_id)",
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"CREATE INDEX IF NOT EXISTS idx_kf_status ON knowledge_files(status)",
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"CREATE INDEX IF NOT EXISTS idx_kf_hash ON knowledge_files(content_hash)",
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"CREATE INDEX IF NOT EXISTS ix_evaluation_datasets_kb_id ON evaluation_datasets(kb_id)",
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(
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"CREATE INDEX IF NOT EXISTS ix_evaluation_dataset_items_dataset_index "
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"ON evaluation_dataset_items(dataset_id, item_index)"
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),
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"CREATE INDEX IF NOT EXISTS ix_evaluation_dataset_items_kb_id ON evaluation_dataset_items(kb_id)",
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"CREATE INDEX IF NOT EXISTS ix_evaluation_runs_kb_id ON evaluation_runs(kb_id)",
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"CREATE INDEX IF NOT EXISTS ix_evaluation_runs_status ON evaluation_runs(status)",
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"CREATE INDEX IF NOT EXISTS ix_evaluation_runs_started ON evaluation_runs(started_at DESC)",
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"CREATE INDEX IF NOT EXISTS ix_evaluation_run_items_run_index ON evaluation_run_items(run_id, item_index)",
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"CREATE UNIQUE INDEX IF NOT EXISTS uq_knowledge_chunks_chunk_id ON knowledge_chunks(chunk_id)",
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"CREATE INDEX IF NOT EXISTS ix_knowledge_chunks_file_id ON knowledge_chunks(file_id)",
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"CREATE INDEX IF NOT EXISTS ix_knowledge_chunks_kb_id ON knowledge_chunks(kb_id)",
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"CREATE INDEX IF NOT EXISTS ix_knowledge_chunks_graph_indexed ON knowledge_chunks(graph_indexed)",
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(
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"CREATE UNIQUE INDEX IF NOT EXISTS uq_knowledge_graph_entities_entity_id "
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"ON knowledge_graph_entities(entity_id)"
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),
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"CREATE INDEX IF NOT EXISTS ix_knowledge_graph_entities_kb_id ON knowledge_graph_entities(kb_id)",
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(
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"CREATE INDEX IF NOT EXISTS ix_knowledge_graph_entity_mentions_kb_id "
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"ON knowledge_graph_entity_mentions(kb_id)"
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),
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(
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"CREATE INDEX IF NOT EXISTS ix_knowledge_graph_entity_mentions_file_id "
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"ON knowledge_graph_entity_mentions(file_id)"
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),
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(
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"CREATE INDEX IF NOT EXISTS ix_knowledge_graph_entity_mentions_chunk_id "
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"ON knowledge_graph_entity_mentions(chunk_id)"
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),
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(
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"CREATE UNIQUE INDEX IF NOT EXISTS uq_knowledge_graph_triples_triple_id "
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"ON knowledge_graph_triples(triple_id)"
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),
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"CREATE INDEX IF NOT EXISTS ix_knowledge_graph_triples_kb_id ON knowledge_graph_triples(kb_id)",
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(
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"CREATE INDEX IF NOT EXISTS ix_knowledge_graph_triple_mentions_kb_id "
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"ON knowledge_graph_triple_mentions(kb_id)"
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),
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(
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"CREATE INDEX IF NOT EXISTS ix_knowledge_graph_triple_mentions_file_id "
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"ON knowledge_graph_triple_mentions(file_id)"
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),
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(
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"CREATE INDEX IF NOT EXISTS ix_knowledge_graph_triple_mentions_chunk_id "
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"ON knowledge_graph_triple_mentions(chunk_id)"
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),
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]
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async with self.async_engine.begin() as conn:
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for stmt in stmts:
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await conn.execute(text(stmt))
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async def ensure_business_schema(self):
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"""确保业务 schema 包含后续新增字段（运行时 schema 演进）。"""
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self._check_initialized()
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stmts = [
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"ALTER TABLE IF EXISTS skills ADD COLUMN IF NOT EXISTS tool_dependencies JSONB DEFAULT '[]'::jsonb",
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"ALTER TABLE IF EXISTS skills ADD COLUMN IF NOT EXISTS mcp_dependencies JSONB DEFAULT '[]'::jsonb",
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"ALTER TABLE IF EXISTS skills ADD COLUMN IF NOT EXISTS skill_dependencies JSONB DEFAULT '[]'::jsonb",
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"ALTER TABLE IF EXISTS skills ADD COLUMN IF NOT EXISTS version VARCHAR(64)",
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"ALTER TABLE IF EXISTS skills ADD COLUMN IF NOT EXISTS source_type VARCHAR(32) NOT NULL DEFAULT 'upload'",
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(
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"ALTER TABLE IF EXISTS skills ADD COLUMN IF NOT EXISTS share_config JSONB NOT NULL "
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'DEFAULT \'{"access_level": "user", "department_ids": [], "user_uids": []}\'::jsonb'
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),
|
||
"ALTER TABLE IF EXISTS skills ADD COLUMN IF NOT EXISTS enabled BOOLEAN NOT NULL DEFAULT TRUE",
|
||
"ALTER TABLE IF EXISTS skills ADD COLUMN IF NOT EXISTS content_hash VARCHAR(128)",
|
||
"ALTER TABLE IF EXISTS subagents ADD COLUMN IF NOT EXISTS enabled BOOLEAN NOT NULL DEFAULT TRUE",
|
||
"ALTER TABLE IF EXISTS conversations ADD COLUMN IF NOT EXISTS is_pinned BOOLEAN NOT NULL DEFAULT FALSE",
|
||
"ALTER TABLE IF EXISTS mcp_servers ADD COLUMN IF NOT EXISTS env JSONB",
|
||
"""
|
||
CREATE TABLE IF NOT EXISTS agent_envs (
|
||
id SERIAL PRIMARY KEY,
|
||
uid VARCHAR NOT NULL REFERENCES users(uid) ON DELETE CASCADE,
|
||
env JSONB NOT NULL DEFAULT '{}'::jsonb,
|
||
created_at TIMESTAMPTZ DEFAULT NOW(),
|
||
updated_at TIMESTAMPTZ DEFAULT NOW(),
|
||
CONSTRAINT uq_agent_envs_uid UNIQUE (uid)
|
||
)
|
||
""",
|
||
"""
|
||
CREATE TABLE IF NOT EXISTS agents (
|
||
id SERIAL PRIMARY KEY,
|
||
slug VARCHAR(80) NOT NULL UNIQUE,
|
||
backend_id VARCHAR(64) NOT NULL,
|
||
name VARCHAR(100) NOT NULL,
|
||
description TEXT,
|
||
icon VARCHAR(255),
|
||
pics JSONB NOT NULL DEFAULT '[]'::jsonb,
|
||
config_json JSONB NOT NULL DEFAULT '{}'::jsonb,
|
||
share_config JSONB NOT NULL DEFAULT '{}'::jsonb,
|
||
is_default BOOLEAN NOT NULL DEFAULT FALSE,
|
||
created_by VARCHAR(64),
|
||
updated_by VARCHAR(64),
|
||
created_at TIMESTAMPTZ DEFAULT NOW(),
|
||
updated_at TIMESTAMPTZ DEFAULT NOW()
|
||
)
|
||
""",
|
||
"ALTER TABLE IF EXISTS agents ADD COLUMN IF NOT EXISTS backend_id VARCHAR(64)",
|
||
"ALTER TABLE IF EXISTS agents ADD COLUMN IF NOT EXISTS share_config JSONB NOT NULL DEFAULT '{}'::jsonb",
|
||
"CREATE UNIQUE INDEX IF NOT EXISTS ix_agents_slug ON agents(slug)",
|
||
"CREATE INDEX IF NOT EXISTS ix_agents_backend_id ON agents(backend_id)",
|
||
"CREATE INDEX IF NOT EXISTS ix_agents_created_by ON agents(created_by)",
|
||
"""
|
||
CREATE UNIQUE INDEX IF NOT EXISTS uq_agents_default
|
||
ON agents(is_default)
|
||
WHERE is_default IS TRUE
|
||
""",
|
||
"""
|
||
CREATE TABLE IF NOT EXISTS model_providers (
|
||
id SERIAL PRIMARY KEY,
|
||
provider_id VARCHAR(100) NOT NULL UNIQUE,
|
||
display_name VARCHAR(100) NOT NULL,
|
||
provider_type VARCHAR(32) NOT NULL DEFAULT 'openai',
|
||
default_protocol VARCHAR(64),
|
||
base_url VARCHAR(500) NOT NULL,
|
||
embedding_base_url VARCHAR(500),
|
||
rerank_base_url VARCHAR(500),
|
||
models_endpoint VARCHAR(200),
|
||
embedding_models_endpoint VARCHAR(200),
|
||
rerank_models_endpoint VARCHAR(200),
|
||
api_key_env VARCHAR(128),
|
||
api_key VARCHAR(500),
|
||
capabilities JSONB NOT NULL DEFAULT '[]'::jsonb,
|
||
enabled_models JSONB NOT NULL DEFAULT '[]'::jsonb,
|
||
headers_json JSONB,
|
||
extra_json JSONB,
|
||
is_enabled BOOLEAN NOT NULL DEFAULT TRUE,
|
||
is_builtin BOOLEAN NOT NULL DEFAULT FALSE,
|
||
created_by VARCHAR(100),
|
||
updated_by VARCHAR(100),
|
||
created_at TIMESTAMPTZ DEFAULT NOW(),
|
||
updated_at TIMESTAMPTZ DEFAULT NOW()
|
||
)
|
||
""",
|
||
"CREATE INDEX IF NOT EXISTS idx_agent_runs_uid_created ON agent_runs(uid, created_at DESC)",
|
||
"CREATE INDEX IF NOT EXISTS idx_agent_runs_thread_created ON agent_runs(thread_id, created_at DESC)",
|
||
"CREATE INDEX IF NOT EXISTS idx_agent_runs_status_updated ON agent_runs(status, updated_at)",
|
||
"CREATE INDEX IF NOT EXISTS ix_conversations_is_pinned ON conversations(is_pinned)",
|
||
"CREATE UNIQUE INDEX IF NOT EXISTS ix_model_providers_provider_id ON model_providers(provider_id)",
|
||
"CREATE INDEX IF NOT EXISTS ix_model_providers_is_enabled ON model_providers(is_enabled)",
|
||
]
|
||
async with self.async_engine.begin() as conn:
|
||
for stmt in stmts:
|
||
await conn.execute(text(stmt))
|
||
|
||
@property
|
||
def is_postgresql(self) -> bool:
|
||
"""检查是否是 PostgreSQL 数据库"""
|
||
if not self._initialized:
|
||
return False
|
||
return self.async_engine.dialect.name == "postgresql"
|
||
|
||
async def get_async_session(self) -> AsyncSession:
|
||
"""获取异步数据库会话"""
|
||
self.initialize() # 确保已初始化
|
||
return self.AsyncSession()
|
||
|
||
@asynccontextmanager
|
||
async def get_async_session_context(self):
|
||
"""获取异步数据库会话的上下文管理器"""
|
||
self.initialize() # 确保已初始化
|
||
session = self.AsyncSession()
|
||
try:
|
||
yield session
|
||
await session.commit()
|
||
except Exception as e:
|
||
await session.rollback()
|
||
logger.error(f"PostgreSQL async operation failed: {e}")
|
||
raise
|
||
finally:
|
||
await session.close()
|
||
|
||
async def close(self):
|
||
"""关闭引擎"""
|
||
if self.async_engine:
|
||
await self.async_engine.dispose()
|
||
|
||
if self.langgraph_pool:
|
||
await self.langgraph_pool.close()
|
||
|
||
async def async_check_first_run(self):
|
||
"""检查是否首次运行（异步版本）- 检查用户表是否有数据"""
|
||
from sqlalchemy import func, select
|
||
|
||
self._check_initialized()
|
||
async with self.get_async_session_context() as session:
|
||
from yuxi.storage.postgres.models_business import User
|
||
|
||
result = await session.execute(select(func.count(User.id)))
|
||
count = result.scalar()
|
||
return count == 0
|
||
|
||
async def commit(self):
|
||
"""提交当前会话"""
|
||
self._check_initialized()
|
||
async with self.get_async_session_context():
|
||
pass # commit is automatic in context manager
|
||
|
||
|
||
# 创建全局 PostgreSQL 管理器实例
|
||
pg_manager = PostgresManager()
|