Documents

What are the available documents?
There are 2 documents available:
Aero\Search\Elastic\Documents\ListingsDocument used to hold information about the listings that are shown on the storefront.
Aero\Search\Elastic\Documents\ProductDocument used to hold information about the products within the store’s catalog. It is generally used in the backend admin, to allow for quick access when managing products.

How can I extend the document structure?
To extend a document, use the 
add() method, to define a closure that will return an 
array of data to merge into the document structure:
\Aero\Search\Elastic\Documents\ListingDocument::add('search-result', function ($document) {
    $colors = $document->getModel()
        ->visibleVariants()
        ->pluck('attributes')
        ->flatten()
        ->filter(function ($attribute) {
            return strpos(strtolower($attribute->group->name), 'color') !== false;
        })
        ->pluck('name')
        ->unique()
        ->values()
        ->all();
    return [
        'colors' => $colors,
    ];
});