Derive Macro ObjectStore 

#[derive(ObjectStore)]
{
    // Attributes available to this derive:
    #[store]
    #[index]
}

Derive the ObjectStore trait for a struct.

Generates an implementation of ObjectStore::store_def() based on the struct’s #[store(...)] container attribute and #[index(...)] field attributes.

Container Attribute

#[store(key_path = "...")] — required. Specifies the primary key field path. Options:

• name = "..." — override the store name (defaults to the struct name)
• auto_increment — enable auto-increment primary keys

#[derive(ObjectStore)]
#[store(key_path = "id", auto_increment)]
struct Log { ... }

Field Attributes

#[index(...)] on a field creates a secondary index. Accepted options:

• unique — create a unique index
• name = "..." — custom index name (defaults to the field name)

#[derive(ObjectStore)]
#[store(key_path = "id")]
struct User {
    #[index(unique)]
    email: String,
    #[index]
    age: u32,
    city: String,          // no index
}