Diesel Enum Derive Macro

Overview

A Rust procedural macro library that provides custom derive macros FromSqlDerive and ToSqlDerive for seamless PostgreSQL enum serialization and deserialization with Diesel ORM.

Features

• Automatically implement FromSql and ToSql traits for PostgreSQL enum types
• Simple attribute-based configuration
• Works with unit variants of enums
• Supports custom SQL type specification

Installation

Add to your Cargo.toml:

[dependencies]
diesel-enum-sqltype = "0.1.6"
diesel = { version = "x.x.x", features = ["postgres"] }

Usage

#[derive(FromSqlDerive, ToSqlDerive)]
#[diesel(sql_type = "PaymentTypeT")] //imported from schema.rs
enum PaymentType {
    Card,
    Bank,
    Wire,
}

Limitations

• Only supports enums with unit variants
• Requires explicit sql_type attribute

License

MIT

Contributing

Contributions welcome! Please open an issue or submit a pull request.