Fix the main image and list image URLs through the API

lib/decidim/accountability_simple/api/types/result_type_extensions.rb

@@ -18,6 +18,18 @@ def self.included(type)
           type.field :links, [Decidim::AccountabilitySimple::ResultLinkType], "The links for this resource", method: :result_links, null: false
         end
 
+        def main_image
+          return unless object.main_image.attached?
+
+          object.attached_uploader(:main_image).url
+        end
+
+        def list_image
+          return unless object.list_image.attached?
+
+          object.attached_uploader(:list_image).url
+        end
+
         def default_details
           context.scoped_context[:parent] = object
 

spec/types/decidim/accountability/result_type_spec.rb

@@ -24,6 +24,38 @@
     end
   end
 
+  describe "mainImage" do
+    let(:query) { "{ mainImage }" }
+
+    before do
+      model.main_image.attach(
+        io: File.open(Decidim::Dev.asset("city.jpeg")),
+        filename: "city.jpeg",
+        content_type: "image/jpeg"
+      )
+    end
+
+    it "returns the result's main image" do
+      expect(response["mainImage"]).to match(model.attached_uploader(:main_image).url)
+    end
+  end
+
+  describe "listImage" do
+    let(:query) { "{ listImage }" }
+
+    before do
+      model.list_image.attach(
+        io: File.open(Decidim::Dev.asset("city.jpeg")),
+        filename: "city.jpeg",
+        content_type: "image/jpeg"
+      )
+    end
+
+    it "returns the result's main image" do
+      expect(response["listImage"]).to match(model.attached_uploader(:list_image).url)
+    end
+  end
+
   describe "defaultDetails" do
     let(:query) { %({ defaultDetails { id values { id } } }) }