Add convenience method to get total tags figures per model

app/Models/Traits/Ingredient.php

@@ -3,8 +3,10 @@
 namespace App\Models\Traits;
 
 use App\Models\IngredientAmount;
+use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Database\Eloquent\Relations\MorphMany;
-use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\DB;
+use Spatie\Tags\Tag;
 
 trait Ingredient
 {
@@ -30,4 +32,25 @@ trait Ingredient
     public function ingredientAmountRelationships(): MorphMany {
         return $this->morphMany(IngredientAmount::class, 'ingredient')->with('parent');
     }
+
+    /**
+     * Get totals for all tags used by the ingredient.
+     *
+     * This method assumes the ingredient has the `HasTags` trait.
+     *
+     * @see \Spatie\Tags\HasTags
+     */
+    public static function getTagTotals(string $locale = null): Collection {
+        $locale = $locale ?? app()->getLocale();
+        return Tag::query()->join('taggables', 'taggables.tag_id', '=', 'id')
+            ->select([
+                'id',
+                "name->{$locale} as name",
+                DB::raw('count(*) as total')
+            ])
+            ->where('taggables.taggable_type', '=', static::class)
+            ->groupBy('id')
+            ->orderBy("name->{$locale}")
+            ->get();
+    }
 }