dorgan/laravel-living-models

A Laravel enhancement that allows models to define dynamic, calculated, and formula-driven attributes using PHP.

v0.0.1 2025-11-28 01:16 UTC

Requires

• php: ^8.2
• illuminate/database: ^10.0|^11.0
• illuminate/events: ^10.0|^11.0
• illuminate/support: ^10.0|^11.0

Requires (Dev)

• orchestra/testbench: ^8.0|^9.0
• phpunit/phpunit: ^10.0

MIT

README

Living Models (dorgan/laravel-living-models) is a Laravel package that lets you define dynamic, calculated, and formula-driven attributes directly on your Eloquent models, using simple PHP or a small expression language.

Instead of scattering pricing, tax, and business rules across services, you keep them close to the model while still treating them as configuration-like logic.

Quick example

<?php

use Dorgan\LivingModels\LivingModel;

class Product extends LivingModel
{
    protected $table = 'products';

    public function configure(): void
    {
        $this->attribute('name')->string();
        $this->attribute('quantity')->integer();

        // Pure PHP closure
        $this->calculated('unit_price', function () {
            if ($this->quantity >= 100) return 8.50;
            if ($this->quantity >= 50)  return 9.25;
            return 10.00;
        });

        // Uses the small expression language
        $this->formula('extended_price', 'quantity * unit_price');
    }
}

Now you can do:

$product = Product::make(['name' => 'Widget', 'quantity' => 120]);

$product->unit_price;      // 8.50
$product->extended_price;  // 1020.00

Status

Early iteration / alpha – APIs may change as we refine Living Models.