Module relation 

Available on crate features model-mysql or model-postgres or model-sqlite only.

Async relationship helpers: HasMany, HasOne, BelongsTo.

These are explicit-load helpers — no hidden N+1 queries, no lazy loading. Call .load(&pool) when you want the related records.

Structs

BelongsTo

Represents the inverse side of a relationship (child → owner).

HasMany

Represents a one-to-many relationship from an owner to a collection of T.

HasOne

Represents a one-to-one relationship (owner → child).