rusqlite-model's Introduction

rusqlite-model

For when serialising/deserialising a struct into/from your (rusqlite) database queries would be convenient, but you don't need all of diesel.

Usage

[dependencies]
rusqlite-model = "0.1"

use rusqlite_model::Model;

#[derive(Model)]
struct User {
    name: String,
    email: String,
    is_active: bool,
    #[sql_type(DATE)]
    last_login: String,
}

fn ensure_exactly_one_user(conn: &rusqlite::Connection) -> rusqlite::Result<usize> {
    User::drop_table(&conn)?;
    User::create_table(&conn)?;

    User {
        name: "OJFord".into(),
        email: "[email protected]".into(),
        is_active: true,
        last_login: "2021/02/28".into(),
    }
    .insert(&conn)
}

fn get_active_users(conn: &rusqlite::Connection) -> rusqlite::Result<Vec<User>> {
    let mut stmt = conn.prepare("SELECT * FROM users WHERE is_active = ?")?;
    stmt.query_map(params![true], |row| row.try_into::<User>())
}

To do

Docs & tests
More types (String -> TEXT; bool -> BOOL currently supported, anything else requires explicit #[sql_type(...)])
Some kind of ::from_query helper (connection & query string -> maybe model)

Won't do

Not intending to be a full ORM with much DSL, use diesel if that's wanted;
I like rusqlite's simplicity when only SQLite is needed, this is just intended to reduce boilerplate around inserting (VALUES (?,?,?,?,.. how many ? again?) and parsing results into structs for better ergonomics;
Migrations
Pan-DBMS portability (rusqlite, and hence SQLite, only)

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