xbot.plugins.pgsql 0.1.1

PostgreSQL library for xbot.framework

xbot.plugins.pgsql

PostgreSQL library for xbot.framework.

Introduction

A synchronous PostgreSQL client library for xbot.framework, built on Psycopg 3. It provides a thin connection wrapper with SQLSTATE-based expectation checking, psql-style result rendering, and explicit transaction support.

Python >= 3.10, PostgreSQL >= 14. For full API documentation, refer to the docstrings in each module.

Installation

pip install xbot.plugins.pgsql

Getting Started

from xbot.plugins.pgsql import PGCodes, PGSQLConnection

db = PGSQLConnection()
db.connect(
    host="127.0.0.1",
    user="postgres",
    password="secret",
    database="postgres",
)

result = db.exec(
    "SELECT 1::integer AS id, 'alice'::text AS name",
)
print(result)
print(result.header)
print(result.rc)
print(result.cmd)

missing = db.exec(
    "SELECT * FROM missing_table",
    expect=PGCodes.UNDEFINED_TABLE,
)
assert missing.rc == "42P01"

with db.transaction():
    db.exec("INSERT INTO accounts(id, balance) VALUES (1, 100)")

db.disconnect()

---

xbot.plugins.pgsql

xbot.framework 的 PostgreSQL 客户端库。

简介

基于 Psycopg 3 的同步 PostgreSQL 客户端库，面向 xbot.framework。提供薄封装连接，支持基于 SQLSTATE 的预期检查、psql 风格结果渲染和显式事务。

Python >= 3.10，PostgreSQL >= 14。完整 API 文档请参阅各模块的 docstring。

安装

pip install xbot.plugins.pgsql

入门

from xbot.plugins.pgsql import PGCodes, PGSQLConnection

db = PGSQLConnection()
db.connect(
    host="127.0.0.1",
    user="postgres",
    password="secret",
    database="postgres",
)

result = db.exec(
    "SELECT 1::integer AS id, 'alice'::text AS name",
)
print(result)
print(result.header)
print(result.rc)
print(result.cmd)

missing = db.exec(
    "SELECT * FROM missing_table",
    expect=PGCodes.UNDEFINED_TABLE,
)
assert missing.rc == "42P01"

with db.transaction():
    db.exec("INSERT INTO accounts(id, balance) VALUES (1, 100)")

db.disconnect()