The last model we need is Message, which relates to the records in the messages table:

#[derive(Debug, Identifiable, Queryable, Associations, Serialize, Deserialize)]
#[belongs_to(Channel)]
#[belongs_to(User)]
#[table_name = "messages"]
pub struct Message {
    pub id: Id,
    pub timestamp: NaiveDateTime,
    pub channel_id: Id,
    pub user_id: Id,
    pub text: String,
}

This model also uses derived traits which we discussed in the first example. Now, we can implement our database interaction crate using the generated schema and the declared models.