phase 4

app/Models/User.php

@@ -8,6 +8,7 @@ use Illuminate\Database\Eloquent\Attributes\Fillable;
 use Illuminate\Database\Eloquent\Attributes\Hidden;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 
@@ -37,4 +38,18 @@ class User extends Authenticatable
     {
         return $this->projects()->wherePivot('role', 'owner');
     }
+
+    public function notificationPreferences(): HasMany
+    {
+        return $this->hasMany(NotificationPreference::class);
+    }
+
+    public function notificationPreferenceFor(Project $project): NotificationPreference
+    {
+        return $this->notificationPreferences()
+            ->firstOrCreate(
+                ['project_id' => $project->id],
+                ['email_enabled' => true, 'database_enabled' => true, 'muted' => false],
+            );
+    }
 }