Adding pivot values causes the pivot model observer not work properly #55026
Description
Laravel Version
12.2.0
PHP Version
8.3.6
Database Driver & Version
No response
Description
Suppose we have a many-to-many relationship with a custom pivot model class. In that case, we can use an observer to handle events for the pivot model (and the relationship).
But here is the issue. If I add a withPivotValue to my relationship, the update and delete events will not work anymore.
Steps To Reproduce
In my project, I have a many to many relation like this:
app/Models/Project.php
class Project // ...
{
public function allMembers(): BelongsToMany
{
return $this->belongsToMany(User::class, 'project_members')
->withPivot(...)
->using(ProjectMember::class);
}
public function members(): BelongsToMany
{
return $this->allMembers()->withPivotValue('role', 'member');
}
public function managers(): BelongsToMany
{
return $this->allMembers()->withPivotValue('role', 'manager');
}
}I have an observer for the project member model like this:
class ProjectMemberObserver
{
public function created(ProjectMember $projectMember): void
{
dd('created called');
}
public function updated(ProjectMember $projectMember): void
{
dd('updated called');
}
public function deleted(ProjectMember $projectMember): void
{
dd('deletedcalled');
}
}Now, if I use the relation without the pivot value, my observer works as expected:
$project = Project::find(...);
$project->allMembers()->attach(...); // created called
$project->allMembers()->updateExistingPivot(..., [...]); // updated called
$project->allMembers()->detach(...); // deleted calledBut if I use the relation with pivot value, only the create handler will work, and the updated or deleted will not work as expected.
$project = Project::find(...);
$project->managers()->attach(...); // created called
$project->managers()->updateExistingPivot(..., [...]); // Observer not working
$project->managers()->detach(...); // Observer not working