Can filter by categories

app/reflexes/products_reflex.rb

@@ -25,6 +25,7 @@ class ProductsReflex < ApplicationReflex
     @page = 1
     @search_term = params[:search_term]
     @producer_id = params[:producer_id]
+    @category_id = params[:category_id]
 
     fetch_products
     render_products
@@ -37,7 +38,8 @@ class ProductsReflex < ApplicationReflex
       selector: "#products-content",
       html: render(partial: "admin/products_v3/content",
                    locals: { products: @products, pagy: @pagy, search_term: @search_term,
-                             producer_options: producers, producer_id: @producer_id })
+                             producer_options: producers, producer_id: @producer_id,
+                             category_options: categories, category_id: @category_id })
     ).broadcast
 
     cable_ready.replace_state(
@@ -56,6 +58,10 @@ class ProductsReflex < ApplicationReflex
     producers.map { |p| [p.name, p.id] }
   end
 
+  def categories
+    Spree::Taxon.order(:name).map { |c| [c.name, c.id] }
+  end
+
   # copied from ProductsTableComponent
   def fetch_products
     product_query = OpenFoodNetwork::Permissions.new(current_user)
@@ -77,6 +83,7 @@ class ProductsReflex < ApplicationReflex
     query = { s: "name desc" }
     query = query.merge({ supplier_id_in: @producer_id }) if @producer_id.present?
     query = query.merge({ name_cont: @search_term }) if @search_term.present?
+    query = query.merge({ primary_taxon_id_in: @category_id }) if @category_id.present?
     query
   end
 

app/views/admin/products_v3/_content.html.haml

@@ -3,7 +3,9 @@
     .sixteen.columns
       = render partial: 'filters', locals: { search_term: search_term,
                                               producer_id: producer_id,
-                                              producer_options: producer_options }
+                                              producer_options: producer_options,
+                                              category_options: category_options,
+                                              category_id: category_id }
   - if products.any?
     .container
       .sixteen.columns

app/views/admin/products_v3/_filters.html.haml

@@ -4,6 +4,8 @@
       = text_field_tag :search_term, search_term, placeholder: t('.search_products')
   .producers
     = select_tag :producer_id, options_for_select(producer_options, producer_id), include_blank: t('.all_producers')
+  .categories
+    = select_tag :category_id, options_for_select(category_options, category_id), include_blank: t('.all_categories')
   .submit
     .search-button
       = submit_tag t(".search"), class: "secondary"

config/locales/en.yml

@@ -776,6 +776,7 @@ en:
       filters:
         search_products: Search for products
         all_producers: All producers
+        all_categories: All categories
         search: Search
       content:
         no_products_found: No products found

spec/system/admin/products_v3/products_spec.rb

@@ -16,6 +16,10 @@ describe 'As an admin, I can see the new product page' do
     create(:simple_product,
            supplier: create(:enterprise, name: "Producer 1"))
   }
+  # create a product with a category that can be searched
+  let!(:product_by_category) {
+    create(:simple_product, taxons: [create(:taxon, name: "Category 1")])
+  }
 
   before do
     # activate feature toggle admin_style_v3 to use new admin interface
@@ -99,6 +103,20 @@ describe 'As an admin, I can see the new product page' do
         expect_products_count_to_be 1
       end
     end
+
+    context "search by category" do
+      it "has a category select" do
+        expect(page).to have_selector "select#category_id"
+      end
+
+      it "can search for a product" do
+        search_by_category "Category 1"
+
+        expect(page).to have_select "category_id", selected: "Category 1"
+        expect_page_to_be 1
+        expect_products_count_to_be 1
+      end
+    end
   end
 
   def expect_page_to_be(page)
@@ -123,4 +141,9 @@ describe 'As an admin, I can see the new product page' do
     select producer, from: "producer_id"
     click_button "Search"
   end
+
+  def search_by_category(category)
+    select category, from: "category_id"
+    click_button "Search"
+  end
 end