Not able to define BelongsToMany relationship using same models with different type - laravel-nova

Question

I have Model Organization and User. There can be a buyer account manager and a seller account manager for an organization.
In organization the relationship is like :
public function managers() {
return $this->belongsToMany(User::class, 'organization_account_managers')->using('App\Model\Organization\OrganizationAccountManager')->withPivot(['account_manager_type']);
}
In User the relationship is defined as:
public function accounts()
{
return $this->belongsToMany(Organization::class, 'organization_account_managers')
->using('App\Model\Organization\OrganizationAccountManager')
->withPivot(['account_manager_type']);
}
When attaching in Nova, have defined on Organization as:
BelongsToMany::make('Account Managers','managers', 'App\Nova\User')
->fields(function () {
return [
Select::make('Type','account_manager_type')
->options(AppOrganization::$account_manager_types)
->rules('required')
->displayUsingLabels()->sortable(),
];
})
The table structure is:
Schema::create('organization_account_managers', function (Blueprint $table) {
$table->id();
$table->foreignId('organization_id');
$table->foreignId('user_id');
$table->tinyInteger('account_manager_type');
$table->timestamps();
});
Problem statement:
A user can be both buyer account manager and seller account manager. But when i try to attach so, NOva gives me an error: This users is already attached.
Appreciate any idea on how to resolve this.

Answer 1

From version v3.23.0 Laravel Nova allows duplicate relations.
BelongsToMany::make('Account Managers', 'managers', 'App\Nova\User')
->fields(function () {
...
})
->allowDuplicateRelations()
If you are using previous version you can try this workaround.