Derive Macro FromAnyRow 

#[derive(FromAnyRow)]

Re-export of the procedural macro for deriving FromRow for AnyRow and AnyImpl.

This macro facilitates scanning arbitrary query results (via AnyRow) into Rust structs, handling necessary type conversions (especially for temporal types). Derives the FromRow trait for AnyRow and the AnyImpl trait.

This procedural macro generates an implementation of sqlx::FromRow<'r, sqlx::any::AnyRow> for the target struct, allowing it to be scanned directly from database results when using sqlx::Any driver (which Bottle ORM uses internally).

It also implements the AnyImpl trait, which provides necessary column metadata used by the QueryBuilder for dynamic query construction.

Features

• Automatic Field Mapping: Maps database columns to struct fields by name.
• DateTime Handling: Includes special logic to handle DateTime types, often required when dealing with the Any driver’s type erasure or JSON serialization fallback.
• Metadata Generation: Automatically generates AnyInfo for each field.

Requirements

The struct must have named fields. Tuple structs and unit structs are not supported.

Example

use bottle_orm::{FromAnyRow, AnyImpl};
use chrono::{DateTime, Utc};

#[derive(FromAnyRow)]
struct UserCount {
    count: i64,
    last_active: DateTime<Utc>,
}

// Usage with QueryBuilder:
// let stats: UserCount = db.model::<User>().select("count(*), last_active").first().await?;