Introduce new filters for the products index

admin/app/components/solidus_admin/products/index/component.rb

@@ -43,13 +43,20 @@ def batch_actions
   end
 
   def filters
-    [
+    Spree::OptionType.all.map do |option_type|
       {
-        name: 'q[with_discarded]',
-        value: true,
-        label: t('.filters.with_deleted'),
-      },
-    ]
+        presentation: option_type.presentation,
+        combinator: 'or',
+        attribute: "variants_option_values",
+        predicate: "in",
+        options: option_type.option_values.map do |option_value|
+          [
+            option_value.name,
+            option_value.id
+          ]
+        end
+      }
+    end
   end
 
   def columns

core/app/models/spree/product.rb

@@ -131,8 +131,16 @@ def find_or_build_master
 
     alias :options :product_option_types
 
+    ransacker :variants_option_values, formatter: proc { |v|
+      joins(variants_including_master: :option_values)
+      .where(spree_option_values: { id: v })
+      .pluck(:id)
+    } do |parent|
+      parent.table[:id]
+    end
+
     self.allowed_ransackable_associations = %w[stores variants_including_master master variants]
-    self.allowed_ransackable_attributes = %w[name slug]
+    self.allowed_ransackable_attributes = %w[name slug variants_option_values]
     self.allowed_ransackable_scopes = %i[available with_discarded with_all_variant_sku_cont with_kept_variant_sku_cont]
 
     # @return [Boolean] true if there are any variants