问题描述
#include <iostream>我正在尝试在原始套接字中使用import sqlalchemy
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from app.models.user import User
engine_uri = "postgres://someusername:somepassword@localhost:5432/users"
engine = create_engine(engine_uri,pool_pre_ping=True)
SessionLocal = sessionmaker(autocommit=False,autoflush=False,bind=engine)
def create_schema(schema_name: str):
"""
Creates a new postgres schema
- **schema_name**: name of the new schema to create
"""
if not engine.dialect.has_schema(engine,schema_name):
engine.execute(sqlalchemy.schema.CreateSchema(schema_name))
def create_tables(schema_name: str):
"""
Create new tables for postgres schema
- **schema_name**: schema in which tables are to be created
"""
if (
engine.dialect.has_schema(engine,schema_name) and
not engine.dialect.has_table(engine,str(User.__table__.name))
):
User.__table__.schema = schema_name
User.__table__.create(engine)
def add_data(schema_name: str):
"""
Add data to a particular postgres schema
- **schema_name**: schema in which data is to be added
"""
if engine.dialect.has_table(engine,str(User.__table__.name)):
db = SessionLocal()
db.connection(execution_options={
"schema_translate_map": {None: schema_name}},)
user = User()
user.name = "Moin"
user.salary = 10000
db.add(user)
db.commit()
从所有协议接收数据包。但是我无法接收数据包。此代码用GoLang编写。你们能帮我解决一下吗
解决方法
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