CRUD: [4.1] Relationship field does not work inside repeatable

I’ve managed to get it to work in part using the Repeatable Relationship field. With the following attribute: ‘multiple’ => false, ‘data_source’ => url($this->crud->route.‘/fetch/person’),

I can add the data or register a new one in the table.

    //RELATIVE
         $this->crud->addField([
            'name'  => 'relation_relative',
            'label' => trans('contact.relative.data'),
            'type'  => 'repeatable',
            'tab'   => trans('contact.relative.tab'),
            'fields' => [
                [   'name' => 'id',
                    'type' => 'hidden',
                ],
                [   'name' => 'contact_id',
                    'type' => 'hidden',
                    'default'   =>  $this->crud->getCurrentEntryId(),
                ],        
           [
            'name'  => 'data1',
            'label' => trans('contact.relative.name'),
            'type'  => 'relationship',
            'wrapper'   => ['class' => 'form-group col-md-8'],           
            'entity'    => 'relatives.person',
            'data_source' => url($this->crud->route.'/fetch/person'),
            'attribute' => 'display_name',
            'model'     => 'App\Models\ContactPerson',
            'ajax' => false,
            'multiple' => false,
            'allows_null' => true,
            'inline_create' => ['entity' => 'contactperson'],             
            ],  
                [   'name'  => 'data2',
                    'label' => trans('contact.relative.type'),
                    'type'  => 'select_from_array',
                    'wrapper' => ['class' => 'form-group col-md-4'], 
                    'options' => ContentType::getTypeRelationRelatives(),
                ],
                [   'name'  => 'data3',
                    'label' => trans('contact.relative.label'),
                    'type'  => 'text',
                ],
            ],
        ]);
    public function fetchPerson()
    {        return $this->fetch('App\Models\ContactPerson');    }

The problem I have is that after saving and re-modifying, it doesn’t associate the value in the Relationship field.

Well if you know how to solve that part then it would be repeatable.

I share the way I found to intercept in the model and save in the related table. And the way to read it and convert to json. This can be added to the documentation.

class ContactFamily extends Model
{ 
   protected $table = 'contacts';
    public $timestamps = true;
    protected $guarded = ['id'];
    protected $fillable = ['display_name', 'civil_status', 'status', 
        'relation_parent', 'relation_spouse', 'relation_children', 'relation_relative', 'relation_other'];

    public function relatives()
    {
        $keys = array_keys(ContentType::getTypeRelationRelatives());
        return $this->hasMany('App\Models\ContactRelation','contact_id', 'id')
                        ->whereIn('data2', $keys);
    }
    public function getRelationRelativeAttribute() {
        $data = self::relatives()->get();
        return $data->toJson();
    }    

    public function setRelationRelativeAttribute($value) {
        $data = (json_decode($value, true)); //converts json into array
        $keys = self::relatives()->get()->modelKeys();
        //Insertar o actualizar registros en parent
        if(is_array($data)) {
            foreach ($data as $entry) {
                if (!empty($entry['data1'])) {
                    $id = (int) $entry['id'];
                    unset($entry['id']);
                    if (($key = array_search($id, $keys)) !== false) 
                        unset($keys[$key]);  
                    self::relatives()->updateOrCreate(['id' => $id], $entry);
                }
            }
        }
        //Eliminar registros en parent
        if(!empty($keys)) {
            foreach ($keys as $id) 
                self::relatives()->find($id)->delete();
        }    
    }