A struct must derive Toql. Only on a derived struct any function from the ToqlApi can be called.

This derive builds a lot of code. This includes

• Mapping of Toql fields to struct fields and database columns or expressions.
• Creating field methods for the query builder.
• Handling relationships through joins and merges.
• Creating Key structs.

With this simple code

# #![allow(unused_variables)]
#fn main() {
   #[derive(Toql)]
   struct User {
       #[toql(key)]
       id: u32,
       name: Option<String>
}
#}

We can now do the following

# #![allow(unused_variables)]
#fn main() {
use toql::mysql::load_one; // Load function from derive
use toql::mysql::update_one; // Update function from derive

let toql = --snip--
let cache = 

let q = query!(User, "id eq 5"); 
let mut user = toql.load_one(&q); 

user.age = Some(16);
toql.update_one(&mut user); 
#}