Code demo of an API experiment for a database mapper.

code_demo.rs

    let mut changeset = BlogRepository::change().inserts::<Posts>();

    for id in 1..=3 {
        let post = Post { id: id, content: format!("Post number {}", id) };

        changeset.push(post);
    }

    let mut changeset = changeset.inserts::<Comments>();

    for id in 1..=9 {
        let post_id = id % 3;
        changeset.push(
            Comment {
                id: id,
                content: format!("Comment number {} on post {}", id, post_id + 1),
                post_id: post_id + 1
            }
        )
    }
    
    let gateway = Sqlite3Gateway { connection: conn };
    let repos = BlogRepository { gateway: gateway };

    changeset.commit(&repos);

    let query = select::<Post>().from::<Posts>();

    let e1 = query.execute(&repos).for_each(|item| {
        println!("{:?}", item);
        future::ready(())
    });

    await!(e1);

    let query2 = select::<Comment>().from::<Comments>();

    let e2 = query2.execute(&repos).for_each(|item| {
        println!("{:?}", item);
        future::ready(())
    });

    await!(e2);