dbkit-core 0.3.1

Core types and SQL building blocks for the dbkit ORM.
Documentation 
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use dbkit_core::{
    rel::{BelongsTo, HasMany},
    Column, Select, Table, Value,
};

#[derive(Debug)]
struct User;

#[derive(Debug)]
struct Todo;

fn user_table() -> Table {
    Table::new("users")
}

fn todo_table() -> Table {
    Table::new("todos")
}

fn user_id() -> Column<User, i64> {
    Column::new(user_table(), "id")
}

fn todo_user_id() -> Column<Todo, i64> {
    Column::new(todo_table(), "user_id")
}

#[test]
fn compiles_join_from_relation() {
    let rel = HasMany::<User, Todo>::new(user_table(), todo_table(), user_id().as_ref(), todo_user_id().as_ref());
    let query: Select<User> = Select::new(user_table()).join(rel);

    let sql = query.compile();
    assert_eq!(sql.sql, "SELECT users.* FROM users JOIN todos ON (todos.user_id = users.id)");
    assert_eq!(sql.binds, Vec::<Value>::new());
}

#[test]
fn compiles_left_join_from_relation() {
    let rel = HasMany::<User, Todo>::new(user_table(), todo_table(), user_id().as_ref(), todo_user_id().as_ref());
    let query: Select<User> = Select::new(user_table()).left_join(rel);

    let sql = query.compile();
    assert_eq!(sql.sql, "SELECT users.* FROM users LEFT JOIN todos ON (todos.user_id = users.id)");
    assert_eq!(sql.binds, Vec::<Value>::new());
}

#[test]
fn compiles_join_belongs_to_relation() {
    let rel = BelongsTo::<Todo, User>::new(todo_table(), user_table(), todo_user_id().as_ref(), user_id().as_ref());
    let query: Select<Todo> = Select::new(todo_table()).join(rel);

    let sql = query.compile();
    assert_eq!(sql.sql, "SELECT todos.* FROM todos JOIN users ON (todos.user_id = users.id)");
    assert_eq!(sql.binds, Vec::<Value>::new());
}