ormkit-derive 0.2.1

# ormkit-derive

Derive macros for the ormkit ORM library.

## Installation

```toml
[dependencies]
ormkit = "0.1"
ormkit-derive = "0.1"
```

## Derive Macros

### `Entity`

The `Entity` derive macro automatically implements the `Entity` trait and generates an `ActiveModel` for your structs.

```rust
#[derive(ormkit::Entity)]
#[ormkit(table = "users")]
struct User {
    #[ormkit(id)]
    id: Uuid,
    email: String,
    name: String,
}
```

### Attributes

- `#[ormkit(table = "table_name")]` - Specifies the database table name
- `#[ormkit(id)]` - Marks a field as the primary key

### Generated Code

The derive macro generates:

1. **Entity trait implementation** - Provides database metadata for the entity
2. **ActiveModel** - Tracks field changes for efficient partial updates
3. **Table metadata** - Column names, types, and constraints

### Example

```rust
use ormkit::{Entity, ActiveModelTrait};
use ormkit::active_value::ActiveValue;

#[derive(ormkit::Entity, Debug, Clone)]
#[ormkit(table = "users")]
struct User {
    #[ormkit(id)]
    id: Uuid,
    email: String,
    name: String,
    created_at: chrono::DateTime<chrono::Utc>,
}

// Use the generated ActiveModel
let mut user = UserActiveModel::default();
user.email = ActiveValue::Set("user@example.com".to_string());
user.name = ActiveValue::Set("John Doe".to_string());
```

## License

MIT OR Apache-2.0

## See Also

- [ormkit](https://crates.io/crates/ormkit) - Main ORM library