Translator implementation for psycopg3 (psycopg) database errors.

This module provides a concrete implementation of BasePsycopgTranslator tailored for psycopg (aka psycopg3) exceptions. It extracts error details using psycopg3's exception interface: - sqlstate: the SQLSTATE code (e.g. '23505' for unique violation) - str(error): the full error message, as psycopg3 does not expose pgerror directly

PsycopgErrorTranslator 

PsycopgErrorTranslator(
    *,
    code_map: dict | None = None,
    check_map: dict | None = None,
)

Bases: BasePsycopgTranslator

Concrete error translator for psycopg (psycopg3) exceptions.

Implements the _get_pgcode and _get_pgerror methods to extract error details from psycopg exception objects: - Uses .sqlstate attribute for SQLSTATE code (psycopg3 equivalent of pgcode) - Uses str(error) as the error message, since psycopg3 does not expose .pgerror

Supports customization via: - code_map: mapping of SQLSTATE codes to user-facing messages - check_map: mapping of check constraint names to human-readable descriptions

Usage

translator = PsycopgErrorTranslator( code_map={"23505": "Значение уже существует"}, check_map={"users_age_check": "Возраст должен быть от 18 до 120"} )

Note

This class is intended for use with psycopg >= 3.0. For psycopg2, use Psycopg2ErrorTranslator instead.