displays the top 3 proposals for every category

app/controllers/proposals_controller.rb

@@ -8,7 +8,7 @@ class ProposalsController < ApplicationController
   before_action :set_search_order, only: :index
   before_action :load_categories, only: [:index, :new, :edit, :map]
   before_action :load_geozones, only: [:edit, :map]
-  before_action :authenticate_user!, except: [:index, :show, :map]
+  before_action :authenticate_user!, except: [:index, :show, :map, :summary]
 
   has_orders %w{hot_score confidence_score created_at relevance}, only: :index
   has_orders %w{most_voted newest oldest}, only: :show
@@ -35,6 +35,10 @@ class ProposalsController < ApplicationController
     set_featured_proposal_votes(@proposal)
   end
 
+  def summary
+    @proposals = Proposal.grouped_by_categories(Proposal.category_names)
+  end
+
   private
 
     def proposal_params

app/models/abilities/everyone.rb

@@ -4,7 +4,7 @@ module Abilities
 
     def initialize(user)
       can [:read, :map], Debate
-      can [:read, :map], Proposal
+      can [:read, :map, :summary], Proposal
       can :read, Comment
       can :read, SpendingProposal
       can :read, Legislation

app/models/proposal.rb

@@ -41,7 +41,11 @@ class Proposal < ActiveRecord::Base
   scope :sort_by_random,           -> { reorder("RANDOM()") }
   scope :sort_by_relevance ,       -> { all }
   scope :sort_by_flags,            -> { order(flags_count: :desc, updated_at: :desc) }
-  scope :last_week,            -> { where("created_at >= ?", 7.days.ago)}
+  scope :last_week,                -> { where("created_at >= ?", 7.days.ago)}
+
+  scope :grouped_by_categories,    -> (categories) { where("lower(tags.name) IN (?)", categories).
+                                                     joins(:tags).select('proposals.*, tags.name').
+                                                     group_by(&:name) }
 
   def searchable_values
     { title              => 'A',
@@ -60,13 +64,21 @@ class Proposal < ActiveRecord::Base
   end
 
   def self.search_by_code(terms)
-    if code_match = /\A#{Setting["proposal_code_prefix"]}-\d\d\d\d-\d\d-(\d*)\z/.match(terms)
-      results = where(id: code_match[1])
+    if code = self.match_code(terms)
+      results = where(id: code[1])
     end
 
     return results if (results.present? && results.first.code == terms)
   end
 
+  def self.match_code(terms)
+    /\A#{Setting["proposal_code_prefix"]}-\d\d\d\d-\d\d-(\d*)\z/.match(terms)
+  end
+
+  def self.category_names
+    ActsAsTaggableOn::Tag.where("kind = 'category'").map {|tag| tag.name.downcase }
+  end
+
   def description
     super.try :html_safe
   end

app/views/proposals/summary.html.erb

@@ -0,0 +1,14 @@
+<section role="main">
+  <div class="wrap row">
+    <div id="proposals" class="proposals-list small-12 medium-9 column">
+      <% @proposals.each do |group_name, proposals| %>
+        <div><strong><%= group_name %></strong></div><br/>
+
+        <% proposals[0..2].each do |proposal| %>
+          <div><strong><%= proposal.title %></strong></div>
+          <div><%= proposal.description %></div>
+        <% end %>
+      <% end %>
+    </div>
+  </div>
+</section>

config/routes.rb

@@ -43,9 +43,9 @@ Rails.application.routes.draw do
       get :suggest
     end
   end
-  
+
   get  'debate_links/new' => 'debate_links#new'
-  post 'debate_links'     => 'debate_links#create'  
+  post 'debate_links'     => 'debate_links#create'
 
   resources :proposals do
     member do
@@ -57,6 +57,7 @@ Rails.application.routes.draw do
     collection do
       get :map
       get :suggest
+      get :summary
     end
   end