Filament Resources: Use Static Methods to Reuse Code

If you create a property in the Resource class to reuse it in methods, make it STATIC.

Both form() and table() methods are static, so if you use something like $this->options, it will throw an error.

Create a static property and then use it as self::$options

class ProductResource extends Resource
{
    protected array $options;
    protected static array $staticOptions;
 
    public static function form(Form $form): Form
    {
        $options = $this->options; // will throw error
        $options = self::$staticOptions; // this will works
    }
 
    public static function table(Table $table): Table
    {
        $options = $this->options; // will throw error
        $options = self::$staticOptions; // this will works
    }
}