Crate barrel

Powerful schema builder API in Rust, using Diesel in the backend.

Barrel has two primary models, the schema and the table. A schema is built with a variety of hooks that can be executed on tables, using static callbacks.

use barrel::{Schema, Table};
use barrel::generators::postgres::*; // Pick the backend of your choice here

let mut sql = Schema::<PGSQL>::new();
sql.create_table("users", |t: &mut Table<PGSQL>| {
    t.increments();
    t.string("username");
    t.integer("plushy_sharks_owned");
});
println!("{}", sql.exec());
// create table "users" ("id" serial primary key, "username" varchar(255), "plushy_sharks_owned" int)

The above code, for example, will create a new table in the "public" schema, called "users" and then execute the table hook on it when invoking schema.exec(). The hook creates an auto-incrementing primary intex. By default the name "id" is assumed.

Barrel is designed to give you ease of use as well as power over how you write your migrations and SQL schemas.

Pull-Requests with more/ better documentation welcome 💚

Reexports

pub use table::Table;

pub use schema::Schema;

Modules

generators	AN SQL string generator module
schema	Schema builder API
table	Table builder API module