Render participation feeds per SDG

app/assets/stylesheets/layout.scss

@@ -2790,7 +2790,8 @@ table {
 // ------------
 
 .home-page,
-.custom-page {
+.custom-page,
+.sdg-goal-show {
 
   a {
 

app/assets/stylesheets/sdg/goals/show.scss

@@ -1,7 +1,7 @@
 .sdg-goal-show {
   @include grid-row;
 
-  > * {
+  > :not(.feeds-participation) {
     @include grid-column-gutter;
   }
 

app/components/sdg/goals/show_component.html.erb

@@ -8,4 +8,6 @@
       <h1><%= goal.title %></h1>
     </header>
   </article>
+
+  <%= render Widgets::Feeds::ParticipationComponent.new(feeds) %>
 </div>

app/components/sdg/goals/show_component.rb

@@ -5,4 +5,8 @@ class SDG::Goals::ShowComponent < ApplicationComponent
   def initialize(goal)
     @goal = goal
   end
+
+  def feeds
+    SDG::Widget::Feed.for_goal(goal)
+  end
 end

app/models/sdg/widget/feed.rb

@@ -0,0 +1,17 @@
+class SDG::Widget::Feed
+  attr_reader :feed, :goal
+  delegate :kind, to: :feed
+
+  def initialize(feed, goal)
+    @feed = feed
+    @goal = goal
+  end
+
+  def items
+    feed.items.by_goal(goal.code)
+  end
+
+  def self.for_goal(goal)
+    ::Widget::Feed.active.map { |feed| new(feed, goal) }
+  end
+end

spec/system/sdg/goals_spec.rb

@@ -33,10 +33,27 @@ describe "SDG Goals", :js do
   end
 
   describe "Show" do
-    scenario "shows the SDG" do
+    scenario "shows the SDG and its related content" 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]])
+
       visit sdg_goal_path(15)
 
       within(".sdg-goal header") { expect(page).to have_content "Life on Land" }
+
+      within ".feed-proposals" do
+        expect(page).to have_content "Animal farm"
+        expect(page).not_to have_content "Sea farm"
+      end
+
+      within ".feed-debates" do
+        expect(page).to have_content "Hunting ground"
+        expect(page).not_to have_content "Solar panels"
+      end
     end
   end
 end