How can a Factory pattern in PHP be adapted for a database-driven hierarchical cookbook system to efficiently generate different types of dishes?

To efficiently generate different types of dishes in a database-driven hierarchical cookbook system using the Factory pattern in PHP, we can create a DishFactory class that dynamically creates instances of different dish classes based on the type of dish requested. Each dish class can have its own implementation for generating the dish details. This approach allows for easy scalability and maintenance of the system as new dish types can be added without modifying existing code. 

<?php

// Define a Dish interface
interface Dish {
    public function generate();
}

// Concrete implementation of a Pasta dish
class Pasta implements Dish {
    public function generate() {
        return "Pasta dish generated";
    }
}

// Concrete implementation of a Salad dish
class Salad implements Dish {
    public function generate() {
        return "Salad dish generated";
    }
}

// DishFactory class to create instances of different dish classes
class DishFactory {
    public static function createDish($type) {
        switch ($type) {
            case 'pasta':
                return new Pasta();
            case 'salad':
                return new Salad();
            default:
                return null;
        }
    }
}

// Usage
$pastaDish = DishFactory::createDish('pasta');
echo $pastaDish->generate(); // Output: Pasta dish generated

$saladDish = DishFactory::createDish('salad');
echo $saladDish->generate(); // Output: Salad dish generated

Keywords

Factory pattern PHP database-driven hierarchical cookbook system

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