Derive Macro atmosphere::Schema

#[derive(Schema)]
{
    // Attributes available to this derive:
    #[sql]
}

A derive macro that processes structs to automatically generate schema-related code. It reads custom attributes and derives necessary traits and implementations for interacting with the database.

Attributes:

• #[sql(pk)] - Mark a column as primary key
• #[sql(fk -> OtherModel)] - Mark a column as foreign key on OtherModel
• #[sql(unique)] - Mark a column as unique
• #[sql(timestamp = [create|update|delete])] - Mark a column as timestamp
• #[sql(.., rename = "renamed_sql_col")] - Rename a column in the generated sql

Usage:

#[derive(Schema)]
struct User {
    #[sql(pk)]
    id: i32,
    #[sql(unique)]
    username: String,
    #[sql(timestamp = create)]
    created_at: chrono::DateTime<chrono::Utc>
}

#[derive(Schema)]
struct Post {
    #[sql(pk)]
    id: i32,
    #[sql(fk -> User, rename = "author_id")]
    author: i32,
}