Add option to configure feed items displayed in homepage

app/controllers/admin/homepage_controller.rb

@@ -2,7 +2,8 @@ class Admin::HomepageController < Admin::BaseController
 
   def show
     load_header
-    load_settings
+    load_feeds
+    load_recommendations
     load_cards
   end
 
@@ -12,14 +13,16 @@ class Admin::HomepageController < Admin::BaseController
     @header = ::Widget::Card.header
   end
 
-  def load_settings
-    settings = /feature.homepage.widgets/
-    @settings = Setting.select {|setting| setting.key =~ /#{settings}/ }
-    @settings << Setting.where(key: 'feature.user.recommendations').first
+  def load_recommendations
+    @recommendations = Setting.where(key: 'feature.user.recommendations').first
   end
 
   def load_cards
     @cards = ::Widget::Card.body
   end
 
+  def load_feeds
+    @feeds = Widget::Feed.order("created_at")
+  end
+
 end

app/controllers/admin/widget/feeds_controller.rb

@@ -0,0 +1,16 @@
+class Admin::Widget::FeedsController < Admin::BaseController
+
+  def update
+    @feed = ::Widget::Feed.find(params[:id])
+    @feed.update(feed_params)
+
+    render nothing: true
+  end
+
+  private
+
+    def feed_params
+      params.require(:widget_feed).permit(:limit)
+    end
+
+end

app/helpers/settings.rb

@@ -0,0 +1,7 @@
+module SettingsHelper
+
+  def setting_for_widget(widget)
+    Setting.where(key: 'feature.user.recommendations').first
+  end
+
+end

app/models/widget/feed.rb

@@ -3,14 +3,18 @@ class Widget::Feed < ActiveRecord::Base
 
   KINDS = %w(proposals debates processes)
 
-  def active?(kind)
-    Setting["feature.homepage.widgets.feeds.#{kind}"].present?
+  def active?
+    setting.value.present?
+  end
+
+  def setting
+    Setting.where(key: "feature.homepage.widgets.feeds.#{kind}").first
   end
 
   def self.active
     KINDS.collect do |kind|
-      feed = new(kind: kind)
-      feed if feed.active?(kind)
+      feed = find_or_create_by(kind: kind)
+      feed if feed.active?
     end.compact
   end
 
@@ -30,8 +34,4 @@ class Widget::Feed < ActiveRecord::Base
     Legislation::Process.open.limit(limit)
   end
 
-  def limit
-    3
-  end
-
 end

app/views/admin/homepage/_feed.html.erb

@@ -0,0 +1,9 @@
+<div id="<%= dom_id(feed) %>">
+  <%= t("admin.homepage.feeds.#{feed.kind}") %><br/>
+
+  <%= render "setting", setting: feed.setting %>
+
+  <%= form_for [:admin, feed], remote: true do |f| %>
+    <%= f.select :limit, (1..10), {}, class: "js-submit-on-change" %>
+  <% end %>
+</div>

app/views/admin/homepage/show.html.erb

@@ -37,12 +37,13 @@
 </div>
 
 <hr>
-
-<% @settings.each do |setting| %>
-  <div class="callout">
-    <h3 class="inline-block"><%= t("settings.#{setting.key}") %></h3>
-    <div class="float-right">
-      <%= render "setting", setting: setting %>
-    </div>
-  </div>
+<% @feeds.each do |feed| %>
+  <%= render "feed", feed: feed %>
 <% end %>
+
+<div class="callout">
+  <h3 class="inline-block"><%= t("settings.#{@recommendations.key}") %></h3>
+  <div class="float-right">
+    <%= render "setting", setting: @recommendations %>
+  </div>
+</div>

config/locales/en/admin.yml

@@ -1229,6 +1229,10 @@ en:
         description: Description
         link_text: Link text
         link_url: Link URL
+      feeds:
+        proposals: Proposals
+        debates: Debates
+        processes: Processes
       new:
         header_title: New header
         submit_header: Create header

config/locales/es/admin.yml

@@ -1229,6 +1229,10 @@ es:
         description: Descripción
         link_text: Texto del enlace
         link_url: URL del enlace
+      feeds:
+        proposals: Propuestas
+        debates: Debates
+        processes: Procesos
       new:
         header_title: Nuevo encabezado
         submit_header: Crear encabezado

config/routes/admin.rb

@@ -180,9 +180,10 @@ namespace :admin do
     resources :content_blocks, except: [:show]
   end
 
-  resource :homepage, controller: :homepage
+  resource :homepage, controller: :homepage, only: [:show]
 
   namespace :widget do
     resources :cards
+    resources :feeds, only: [:update]
   end
 end

db/migrate/20180519132610_create_widget_feeds.rb

@@ -2,6 +2,7 @@ class CreateWidgetFeeds < ActiveRecord::Migration
   def change
     create_table :widget_feeds do |t|
       t.string :kind
+      t.integer :limit, default: 3
       t.timestamps null: false
     end
   end

db/schema.rb

@@ -1236,8 +1236,9 @@ ActiveRecord::Schema.define(version: 20180519132610) do
 
   create_table "widget_feeds", force: :cascade do |t|
     t.string   "kind"
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
+    t.integer  "limit",      default: 3
+    t.datetime "created_at",             null: false
+    t.datetime "updated_at",             null: false
   end
 
   add_foreign_key "administrators", "users"

spec/features/admin/homepage/homepage_spec.rb

@@ -12,9 +12,10 @@ feature 'Homepage' do
     Setting['feature.user.recommendations'] = false
   end
 
-  let(:proposals_setting)    { Setting.where(key: 'feature.homepage.widgets.feeds.proposals').first }
-  let(:debates_setting)      { Setting.where(key: 'feature.homepage.widgets.feeds.debates').first }
-  let(:processes_setting)    { Setting.where(key: 'feature.homepage.widgets.feeds.processes').first }
+  let!(:proposals_feed)    { create(:widget_feed, kind: "proposals") }
+  let!(:debates_feed)      { create(:widget_feed, kind: "debates") }
+  let!(:processes_feed)    { create(:widget_feed, kind: "processes") }
+
   let(:user_recommendations) { Setting.where(key: 'feature.user.recommendations').first }
   let(:user)                 { create(:user) }
 
@@ -23,48 +24,46 @@ feature 'Homepage' do
 
   context "Feeds" do
 
-    scenario "Proposals" do
+    scenario "Proposals", :js do
       5.times { create(:proposal) }
 
       visit admin_homepage_path
-      within("#setting_#{proposals_setting.id}") do
-        click_button "Enable"
-      end
 
-      expect(page).to have_content "Value updated"
+      within("#widget_feed_#{proposals_feed.id}") do
+        select '1', from: 'widget_feed_limit'
+        accept_confirm { click_button "Enable" }
+      end
 
       visit root_path
 
       expect(page).to have_content "Most active proposals"
-      expect(page).to have_css(".proposal", count: 3)
+      expect(page).to have_css(".proposal", count: 1)
     end
 
-    scenario "Debates" do
+    scenario "Debates", :js do
       5.times { create(:debate) }
 
       visit admin_homepage_path
-      within("#setting_#{debates_setting.id}") do
-        click_button "Enable"
+      within("#widget_feed_#{debates_feed.id}") do
+        select '2', from: 'widget_feed_limit'
+        accept_confirm { click_button "Enable" }
       end
 
-      expect(page).to have_content "Value updated"
-
       visit root_path
 
       expect(page).to have_content "Most active debates"
-      expect(page).to have_css(".debate", count: 3)
+      expect(page).to have_css(".debate", count: 2)
     end
 
-    scenario "Processes" do
+    scenario "Processes", :js do
       5.times { create(:legislation_process) }
 
       visit admin_homepage_path
-      within("#setting_#{processes_setting.id}") do
-        click_button "Enable"
+      within("#widget_feed_#{processes_feed.id}") do
+        select '3', from: 'widget_feed_limit'
+        accept_confirm { click_button "Enable" }
       end
 
-      expect(page).to have_content "Value updated"
-
       visit root_path
 
       expect(page).to have_content "Open processes"