juiste view policy voor een mutation

app/Policies/MutationPolicy.php

@@ -18,6 +18,12 @@ class MutationPolicy
         return $dynamic->participants()->where('user_id', $user->id)->exists();
     }
 
+    public function view(User $user, Mutation $mutation): bool
+    {
+        $ledger = $mutation->ledger;
+        return $user->can('view', $ledger);
+    }
+
     /**
      * Determine whether the user can update the mutation.
      */