Laravel Nova - How to determine the view (index, detail, form) you are in for a resource's computed field?

Question

I would like to return a different result for a computed field when viewing the index view than when viewing the detail view of a resource.

Basically something like

Answer 1

The NovaRequest class will soon be able to help, as the isResourceIndexRequest and isResourceDetailRequest are already in master.

As the Nova repo is private I will keep you posted, when it will be usable.

In the meantime I am falling back to helper methods on the Nova Resource class (app/Nova/Resource.php):

namespace App\Nova;

use Laravel\Nova\Http\Requests\ResourceDetailRequest;
use Laravel\Nova\Http\Requests\ResourceIndexRequest;
use Laravel\Nova\Resource as NovaResource;
use Laravel\Nova\Http\Requests\NovaRequest;

abstract class Resource extends NovaResource
{
    // [...]

    /**
     * Determine if this request is a resource index request.
     *
     * @return bool
     */
    public function isResourceIndexRequest($request)
    {
        return $request instanceof ResourceIndexRequest;
    }

    /**
     * Determine if this request is a resource detail request.
     *
     * @return bool
     */
    public function isResourceDetailRequest($request)
    {
        return $request instanceof ResourceDetailRequest;
    }
}

Usage:

public function fields(Request $request)
{
    $fields = [
        // [...]
    ];

    if ($this->isResourceDetailRequest($request)) {
        if ($this->isResourceDetailRequest($request)) {
            $fields = array_merge($fields, [
                // [...]
            ]);
        }
    }

    return $fields;
}