Support combined unique per store key

src/Models/Scopes/ForCurrentStoreWithoutLimitScope.php

@@ -5,13 +5,19 @@
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Scope;
+use Illuminate\Support\Facades\DB;
 
 /**
  * Remove results from the default store when store view specific is found.
  */
 class ForCurrentStoreWithoutLimitScope implements Scope
 {
-    public function __construct(public $uniquePerStoreKey, public $storeIdColumn = 'store_id') {}
+    public array $uniquePerStoreKeys;
+
+    public function __construct(string|array $uniquePerStoreKey, public $storeIdColumn = 'store_id')
+    {
+        $this->uniquePerStoreKeys = is_array($uniquePerStoreKey) ? $uniquePerStoreKey : [$uniquePerStoreKey];
+    }
 
     public function apply(Builder $query, Model $model)
     {
@@ -20,18 +26,26 @@ public function apply(Builder $query, Model $model)
                 ->where($query->qualifyColumn($this->storeIdColumn), 0);
         }
 
+        $scope = $this;
+
         return $query
             // Pre-filter results to be default and current store only.
             ->whereIn($query->qualifyColumn($this->storeIdColumn), [0, config('rapidez.store')])
             // Remove values from the default store where values for the current store exist.
             ->where(fn ($query) => $query
                 // Remove values where we already have values in the current store.
-                ->whereNotIn($query->qualifyColumn($this->uniquePerStoreKey), fn ($query) => $query
-                    ->select($model->qualifyColumn($this->uniquePerStoreKey))
-                    ->from($model->getTable())
-                    ->whereColumn($model->qualifyColumn($this->uniquePerStoreKey), $model->qualifyColumn($this->uniquePerStoreKey))
-                    ->where($model->qualifyColumn($this->storeIdColumn), config('rapidez.store'))
-                )
+                ->where(function ($query) use ($scope, $model) {
+                    $query
+                        ->whereNotExists(function ($query) use ($scope, $model) {
+                            $query
+                                ->select(DB::raw(1))
+                                ->from($model->getTable() . ' as comparison')
+                                ->where('comparison.' . $this->storeIdColumn, config('rapidez.store'));
+                            foreach ($scope->uniquePerStoreKeys as $uniquePerStoreKey) {
+                                $query->whereColumn('comparison.' . $uniquePerStoreKey, $model->qualifyColumn($uniquePerStoreKey));
+                            }
+                        });
+                })
                 // Unless the value IS the current store.
                 ->orWhere($query->qualifyColumn($this->storeIdColumn), config('rapidez.store'))
             );