0.2.1
Very small Object-relational mapper (bare essential) to quickly setup embedded database in SQLite Deno/Typescript/Web.
Repository
Current version released
3 years ago
Dependencies
deno.land/x
Small SQLite ORM
Very small Object-relational mapper (bare essential) to quickly setup embedded database in SQLite Deno/Typescript/Web.
Learn By Examples
import { SSQL, SSQLTable } from "./lib/SmallSQLite.ts";
export class User extends SSQLTable {
userName = "";
address = "";
active = false;
age = 0;
}
export class Log extends SSQLTable {
userId = -1;
insertDate = new Date().getDate();
description = "";
status = 0;
}
const orm = new SSQL("test.db", [User, Log]);
const user = new User();
user.address = "Denoland 12";
user.userName = "Joe Deno";
user.active = true; // Make Joe active
orm.save(user);
console.log(user.id); // Joe now has an id of 1 in our DB
// Add 5 total some Logs
for (let i = 0; i < 5; i++) {
const log = new Log();
log.userId = user.id;
log.description = "log " + i;
log.status = 1;
orm.save(log);
}
console.log("5 logs total: " + orm.count(Log));
// Update only 2 logs with status 2 in the db
for (const log of orm.findMany(Log, { limit: 2 })) {
log.status = 2;
orm.save(log);
}
console.log(
"Count only 2 logs with status > 1: " +
orm.countBy(Log, { where: { clause: "status > ?", values: [1] } })
);
const orderedLogs = orm.findMany(Log, {
where: { clause: "status < ?", values: [2] },
order: { by: "id", desc: true }
})
for (const l of orderedLogs) console.log("ordered desc: " + l.id + " " + l.status);
const logs = orm.findMany(Log, { offset: 4, limit: 1 }); // Returns only 1 result on offset 4
const logUser = orm.findOne(User, logs[0].userId); // quickly retrieve the user of the log
orm.delete(logs[0]); // Removed from the DB
console.log("only 4 logs left: " + orm.count(Log));
Breaking changes 0.1.5 -> 0.2.0
- Classnames have been renamed eg.
SmallSQLiteORM
changed intoSSQL
. - All methodcalls use the
SSQLQuery
object instead with more options.
Documentation
View it online at doc.deno.land
Extra Features
- Automatically CREATE TABLE when database file is initialized
- Automatically ALTER TABLE when model class is changed (only ADD COLUMN)