Make "see all" links filter per goal

app/components/widgets/feeds/feed_component.rb

@@ -7,7 +7,7 @@ class Widgets::Feeds::FeedComponent < ApplicationComponent
   end
 
   def see_all_path
-    polymorphic_path(feed.items.model)
+    polymorphic_path(feed.items.model, filters)
   end
 
   private
@@ -22,4 +22,12 @@ class Widgets::Feeds::FeedComponent < ApplicationComponent
         Widgets::Feeds::ProcessComponent
       end
     end
+
+    def filters
+      if feed.respond_to?(:goal)
+        { advanced_search: { goal: feed.goal.code }}
+      else
+        {}
+      end
+    end
 end

app/models/concerns/filterable.rb

@@ -20,7 +20,7 @@ module Filterable
     def allowed_filter?(filter, value)
       return if value.blank?
 
-      ["official_level", "date_range"].include?(filter)
+      ["official_level", "date_range", "goal"].include?(filter)
     end
   end
 end

spec/components/widgets/feeds/feed_component_spec.rb

@@ -0,0 +1,57 @@
+require "rails_helper"
+
+describe Widgets::Feeds::FeedComponent, type: :component do
+  describe "#see_all_path" do
+    context "debates" do
+      let(:feed) { Widget::Feed.new(kind: "debates") }
+
+      it "points to the debates path for homepage debates feeds" do
+        component = Widgets::Feeds::FeedComponent.new(feed)
+
+        render_inline component
+
+        expect(component.see_all_path).to eq "/debates"
+      end
+
+      it "points to the debates filtered by goal for goal feeds" do
+        component = Widgets::Feeds::FeedComponent.new(SDG::Widget::Feed.new(feed, SDG::Goal[6]))
+
+        render_inline component
+
+        expect(component.see_all_path).to eq "/debates?advanced_search#{CGI.escape("[goal]")}=6"
+      end
+    end
+
+    context "proposals" do
+      let(:feed) { Widget::Feed.new(kind: "proposals") }
+
+      it "points to the proposals path for homepage proposals feeds" do
+        component = Widgets::Feeds::FeedComponent.new(feed)
+
+        render_inline component
+
+        expect(component.see_all_path).to eq "/proposals"
+      end
+
+      it "points to the proposals filtered by goal for goal feeds" do
+        component = Widgets::Feeds::FeedComponent.new(SDG::Widget::Feed.new(feed, SDG::Goal[6]))
+
+        render_inline component
+
+        expect(component.see_all_path).to eq "/proposals?advanced_search#{CGI.escape("[goal]")}=6"
+      end
+    end
+
+    context "processes" do
+      let(:feed) { Widget::Feed.new(kind: "processes") }
+
+      it "points to the legislation processes path for homepage processes feeds" do
+        component = Widgets::Feeds::FeedComponent.new(feed)
+
+        render_inline component
+
+        expect(component.see_all_path).to eq "/legislation/processes"
+      end
+    end
+  end
+end

spec/system/sdg/goals_spec.rb

@@ -33,14 +33,16 @@ describe "SDG Goals", :js do
   end
 
   describe "Show" do
-    scenario "shows the SDG and its related content" do
+    before do
       goal = SDG::Goal[15]
 
       create(:debate, title: "Solar panels", sdg_goals: [SDG::Goal[7]])
       create(:debate, title: "Hunting ground", sdg_goals: [goal])
       create(:proposal, title: "Animal farm", sdg_goals: [goal])
       create(:proposal, title: "Sea farm", sdg_goals: [SDG::Goal[14]])
+    end
 
+    scenario "shows the SDG and its related content" do
       visit sdg_goal_path(15)
 
       within(".sdg-goal header") { expect(page).to have_content "Life on Land" }
@@ -55,5 +57,25 @@ describe "SDG Goals", :js do
         expect(page).not_to have_content "Solar panels"
       end
     end
+
+    scenario "has links to debates and proposals filtered by goal" do
+      visit sdg_goal_path(15)
+
+      click_link "See all debates"
+
+      within "#debates" do
+        expect(page).to have_content "Hunting ground"
+        expect(page).not_to have_content "Solar panels"
+      end
+
+      go_back
+
+      click_link "See all proposals"
+
+      within "#proposals" do
+        expect(page).to have_content "Animal farm"
+        expect(page).not_to have_content "Sea farm"
+      end
+    end
   end
 end