Relationship record not automatically created in resource View page action

Action::make('requestReviseOrder')
    ->form([
         TextArea::make('remarks')
    ])
    ->action(function (array $data): void     {
        $this->record->training()-  >update($data);
        $this->fillForm();
    }

public function training(): HasOne
    {
        return $this->hasOne(Training::class);
    }

public function order(): BelongsTo
    {
        return $this->belongsTo(Order::class);
    }