jeloquent

library4.0.3jsnpmunverified

A micro JavaScript ORM memory store inspired by Laravel Eloquent, version 4.0.3. It provides in-memory data storage with automatic indexing of primary and foreign keys for fast selection of models and relations. Supports relation types: BelongsTo, HasMany, HasManyThrough. Lightweight, designed for Node.js and modern browsers. Not actively maintained (last release 2020). Suitable for small-scale or prototyping applications where database persistence is not required.

storage testing

npm install jeloquent

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · JELOQUENT

jeloquent

storagejavascriptv4.0.3

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

Model

✓ import { Model } from 'jeloquent'

✗ const { Model } = require('jeloquent')

ESM-only; CJS require will fail. Use ESM imports.

Field

✓ import { Field } from 'jeloquent'

✗ import Field from 'jeloquent'

Field is a named export, not default.

HasMany

✓ import { HasMany } from 'jeloquent'

Proper named export.

BelongsTo

✓ import { BelongsTo } from 'jeloquent'

Proper named export.

Database

✓ import { Database } from 'jeloquent'

✗ const Database = require('jeloquent').Database

ESM is recommended; CJS require may work in some environments but is not officially supported.

Store

✓ import { Store } from 'jeloquent'

Named export.

Defines three models (User, Team, Comment) with Eloquent-style relations, creates an in-memory database store, inserts data, and retrieves a record.

import { Model, Field, HasMany, BelongsTo, Database, Store } from 'jeloquent'; class User extends Model { constructor() { const fields = [ new Field('id', true), new Field('name'), new Field('team_id'), new BelongsTo(Team), new HasMany(Comment), ]; super(fields); } } class Team extends Model { constructor() { const fields = [ new Field('id', true), new Field('name'), new HasMany(User), new HasManyThrough(Comment, User), ]; super(fields); } } class Comment extends Model { constructor() { const fields = [ new Field('id', true), new Field('title'), new Field('text'), new Field('user_id'), new BelongsTo(User), ]; super(fields); } } const store = new Store(); store.add(new Database('chess', [User, Team, Comment])); store.use('chess'); User.insert([ { id: 1, name: 'Alice', team_id: 1 }, { id: 2, name: 'Bob', team_id: 1 }, ]); const user = User.find(1); console.log(user.name); // Alice

Debug

Known issues

gotchaAll data is stored in memory only; data loss occurs on process restart.

fix

Use for prototypes or non-persistent contexts; implement persistence manually if needed.

affects: >=0.0.0

gotchaPackage uses ESM modules; require() may not work in Node.js without --experimental-modules flag (or Node < 13.2).

fix

Use import statements or upgrade to Node >= 13.2 with type: 'module' in package.json.

affects: >=4.0.0

gotchaFields with primary key set to true must be unique; duplicate primary keys cause silent overwrite.

fix

Ensure uniqueness of primary key values or use auto-generated temporary keys.

affects: >=0.0.0

deprecatedPackage has not been updated since 2020; may have compatibility issues with newer Node.js versions.

fix

Consider alternatives if you need active maintenance or newer features.

affects: >=4.0.0

Errors

Common errors & fixes

Cannot find module 'jeloquent' or its corresponding type declarations.

Package is ESM-only and may not be recognized by some bundlers or TypeScript without proper configuration.

fix

Ensure your project uses ES modules (e.g., set type: 'module' in package.json) and use import syntax.

TypeError: Class constructor Model cannot be invoked without 'new'

Attempting to instantiate a subclass of Model without using new or extending improperly.

fix

Always use new when creating instances of your model classes, e.g., new User() or User.insert() for bulk.

Field 'id' is not a primary key, but a value with primary key 'undefined' already exists.

Primary key field marked as true but no value provided; triggers auto-generation but may conflict.

fix

Pass a primary key value or allow auto-generated keys (temporary _N keys).

Upgrade

Version history

4.0.3latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

23 hits · last 30 days

node

Resources

githubhttps://github.com/mbroersen/jeloquent ↗

packagejeloquent ↗

homepagehttps://github.com/mbroersen/jeloquent#readme ↗