Relation fromModel custom name

[m-pastuszek]

Hello, I'd like to show combination of two columns in user-visible select name in Relation field-type. As it's easy for TD and Sight using render(), I don't know how can I make the same for Relation field, but I can type only one column as second parameter in fromModel() function.

My case is following:
I have select Workplace field. I'd like show user available options as Department - WorkplaceName.

TD example:

 TD::make('workplace', 'Workplace')
                ->render(function ($model) {
                    return ($model->workplace->department->name . ' - ' . $model->workplace->name);
                }),

Any ideas? :)

[tabuna]

You can add a calculated attribute to your model, for example

class Workplace extends Model
{
    /**
     * @return string
     */
    public function getFullNameAttribute(): string
    {
        return $model->department->name . ' - ' . $model->name;
    }
}

Then use the displayAppend method to specify which calculated field to use for display:

Relation::make('workplace.')
    ->fromModel(Workplace::class, 'name')
    ->displayAppend('fullName')
    ->multiple()
    ->title('Select workplace');

[m-pastuszek]

Ahhh... so easy!
Thank you so much :)