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//
// Copyright (c) 2020-2021 science+computing ag and other contributors
//
// This program and the accompanying materials are made
// available under the terms of the Eclipse Public License 2.0
// which is available at https://www.eclipse.org/legal/epl-2.0/
//
// SPDX-License-Identifier: EPL-2.0
//
use std::ops::Deref;
use anyhow::Error;
use anyhow::Result;
use diesel::prelude::*;
use diesel::PgConnection;
use crate::schema::packages;
use crate::schema::packages::*;
#[derive(Debug, Identifiable, Queryable, Eq, PartialEq)]
pub struct Package {
pub id: i32,
pub name: String,
pub version: String,
}
#[derive(Insertable)]
#[table_name = "packages"]
struct NewPackage<'a> {
pub name: &'a str,
pub version: &'a str,
}
impl Package {
pub fn create_or_fetch(
database_connection: &PgConnection,
p: &crate::package::Package,
) -> Result<Package> {
let new_package = NewPackage {
name: p.name().deref(),
version: p.version().deref(),
};
diesel::insert_into(packages::table)
.values(&new_package)
.on_conflict_do_nothing()
.execute(database_connection)?;
dsl::packages
.filter({
let p_name = p.name().deref();
let p_vers = p.version().deref();
name.eq(p_name).and(version.eq(p_vers))
})
.first::<Package>(database_connection)
.map_err(Error::from)
}
}
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