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// Copyright (C) 2021-2021 The Whirlsplash Collective
// SPDX-License-Identifier: GPL-3.0-only
//! Database utilities, to interact with the database.
#![feature(
type_ascription,
hash_set_entry,
type_name_of_val,
decl_macro,
proc_macro_hygiene
)]
#![deny(
warnings,
nonstandard_style,
unused,
future_incompatible,
rust_2018_idioms,
unsafe_code
)]
#![deny(clippy::all, clippy::nursery, clippy::pedantic)]
#![recursion_limit = "128"]
#![doc(
html_logo_url = "https://raw.githubusercontent.com/Whirlsplash/assets/master/Whirl.png",
html_favicon_url = "https://raw.githubusercontent.com/Whirlsplash/assets/master/Whirl.png"
)]
#[macro_use]
extern crate diesel;
mod models;
mod schema;
use diesel::prelude::*;
// use crate::db::models::*;
/// Establish a connection to the `SQLite` database.
///
/// # Panics
/// - May panic if the database URL is inaccessible.
#[must_use]
pub fn establish_connection() -> SqliteConnection {
let database_url =
std::env::var("DATABASE_URL").unwrap_or_else(|_| ".whirl/db.sqlite3".to_string());
SqliteConnection::establish(&database_url)
.unwrap_or_else(|_| panic!("error connecting to {}", database_url))
}
/// Only works if you have a valid database already setup!
#[cfg(test)]
#[test]
#[ignore]
fn show_serials() {
use crate::{models::SerialNumber, schema::serial_numbers::dsl::*};
dotenv::dotenv().ok();
let results = serial_numbers
.limit(5)
.load::<SerialNumber>(&establish_connection())
.expect("error loading serial numbers table");
println!("found {} results", results.len());
for result in results {
println!("{}", result.user_name);
}
}
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