Can not access pivot relation in BelongsToMany Closure

[mira-thakkar]

• Laravel Version: 8.70.2
• Nova Version: 3.30.0
• PHP Version: 7.4.20
• Database Driver & Version: mysql 8.0

Description:

Can not access pivot relation within BelongsToMany fields closure

Detailed steps to reproduce the issue on a fresh Nova installation:

Post Model

class Post extends Model
{
    use HasFactory;

    public function tags(){
        return $this->belongsToMany(Tag::class)->withPivot('env_id');
    }
}

Post Resource

public function fields(Request $request) {
       return [
           ID::make(__('ID'), 'id')->sortable(),

           Text::make('Name'),

           BelongsToMany::make('Tags')->fields(function (){
               return [
                   Text::make('Env','env_id'),
                   
                   Text::make('Status', function (){
                       return isset($this->pivot) && $this->pivot->env_id ? 'Completed' : 'Pending';
                   })
               ];
           })
       ];
}

Same way i have created the Tag Model and Tag resource
But i never get Status as Completed even if env_id is not null, and i figure out that $this->pivot is always null within the closure

I tried the same files in another project having laravel version 8.12 and it worked.

Any help would be appreciated,
Thanks!

[crynobone]

You can use the following:

public function fields(Request $request) {
    return [
        ID::make(__('ID'), 'id')->sortable(),

        Text::make('Name'),

        BelongsToMany::make('Tags')->fields(function ($request, $relatedModel) {
            return [
                Text::make('Env','env_id'),

                $this->mergeWhen($request->isResourceIndexRequest(), function () {
                    return [
                        Text::make('Status', function ($pivot) {
                            return isset($pivot) && $pivot->env_id ? 'Completed' : 'Pending';
                        }),
                    ];
                }),
            ];
        })
    ];
}