moved roles to a separate database and added code to make updates

app/Models/MovieList.php

@@ -27,18 +27,19 @@ class MovieList extends Model
         return $this->belongsToMany(Movie::class);
     }
 
-    public function getUserRole($userId)
+    public function getUserRole($userId): string
     {
-        return $this->collaborators()
+        $roleId = $this->collaborators()
             ->where('user_id', $userId)
             ->first()
-            ?->pivot
-            ->role;
+            ?->pivot->role_id;
+
+        return Role::query()->find($roleId)?->name;
     }
 
     public function collaborators(): BelongsToMany
     {
         return $this->belongsToMany(User::class, 'movie_list_user')
-            ->withPivot('role');
+            ->withPivot('role_id');
     }
 }

app/Models/Role.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Role extends Model
+{
+    use HasFactory;
+}

app/Models/User.php

@@ -45,9 +45,19 @@ class User extends Authenticatable
         return $this->hasMany(MovieList::class, 'owner');
     }
 
+    public function hasRole(MovieList $movieList, int $role): bool
+    {
+        return $this->sharedLists()
+            ->wherePivot('movie_list_id', $movieList->id)
+            ->wherePivot('role_id', $role)
+            ->exists();
+    }
+
     public function sharedLists(): BelongsToMany
     {
-        return $this->belongsToMany(MovieList::class)->withPivot('role')->withTimestamps();
+        return $this->belongsToMany(MovieList::class)
+            ->withPivot('role_id')
+            ->withTimestamps();
     }
 
     /**