Welds
Welds is an async ORM written in rust using the sqlx framework.
Features
- Async for all.
- Support for multiple SQL databases (Mssql, MySql, Postgres, Sqlite)
- Written for ease of development. Features aren't hidden behind traits. Code should be simple to write, and simple to read.
- sqlx always available when you need to drop down to something lower level
Example Setup
#[derive(Debug, sqlx::FromRow, WeldsModel)]
#[welds(db(Postgres))]
#[welds(schema= "inventory", table = "products")]
#[welds(BelongsTo(seller, super::people::People, "seller_id"))]
pub struct Product {
#[sqlx(rename = "product_id")]
#[welds(primary_key)]
pub id: i32,
pub name: String,
pub seller_id: Option<i32>,
pub description: Option<String>,
pub price: Option<f32>,
}
Example Usage
Basic Select
let conn: sqlx::PgPool = sqlx::PgPool::connect(&url).await.unwrap();
let products = Product::where_col(|p| p.price.equal(3.50)).run(&conn).await?;
Basic Filter Across tables
let conn: sqlx::PgPool = sqlx::PgPool::connect(&url).await.unwrap();
let sellers = Product::where_col(|product| product.price.equal(3.50))
.map_query(|product| product.seller )
.where_col(|seller| seller.name.ilike("%Nessie%") )
.run(&conn).await?;
Create And Update
let conn: sqlx::PgPool = sqlx::PgPool::connect(&url).await.unwrap();
let mut cookies = Product::new();
cookies.name = "cookies".to_owned();
cookies.save.await(&conn)?;
cookies.description = "Yum".to_owned();
cookies.save.await(&conn)?;