Doctrine ODM and schema-less design

Question

Continuing on from my question about EAV, I\'m considering using MongoDB to store product attributes.

I will store the catalogue part of this app - Categories, Products

Answer 1

The solution is to use a @Hash

Here is a VERY basic example I did up:

id;
    }

    public function setName($name)
    {
        $this->name = $name;
    }

    public function getName()
    {
        return $this->name;
    }

    public function addAttribute($name, $value)
    {
        $key = preg_replace('/[^a-z0-9\ \_]/i', '', $name);
        $key = preg_replace('/\s+/i', '_', $key);
        $key = strtolower($key);
        $this->attributes[$key] = array('value' =>$value, 'label' => $name);
    }

    public function getAttribute($name)
    {
        return $this->attributes[$name];
    }

    public function getAttributes()
    {
        return $this->attributes;
    }

}

Add some data:

setName('Cool Pen');
$pen->addAttribute('Weight', 12);
$pen->addAttribute('Ink Colour', 'Red');
$pen->addAttribute('Colour', 'Black');

$tv = new Product();
$tv->setName('LED LCD TV');
$tv->addAttribute('Weight', 12550);
$tv->addAttribute('Screen Size', 32);
$tv->addAttribute('Colour', 'Black');

$dm->persist($pen);
$dm->persist($tv);

$dm->flush();

Then query, find a product with the colour "Black" and a Screen Size greater than 20:

createQueryBuilder('Catalogue\Product');
$products = $query->field('attributes.colour.value')->equals('Black')
                ->field('attributes.screen_size.value')->gte(20)
                ->getQuery()->execute();

I'm still not sure if this is a best way to do this and my research is still ongoing.