Add documentable to proposal model.

app/controllers/proposals_controller.rb

@@ -19,6 +19,7 @@ class ProposalsController < ApplicationController
   def show
     super
     @notifications = @proposal.notifications
+    @document = Document.new(documentable: @proposal)
     redirect_to proposal_path(@proposal), status: :moved_permanently if request.path != proposal_path(@proposal)
   end
 

app/models/proposal.rb

@@ -9,6 +9,7 @@ class Proposal < ActiveRecord::Base
   include HasPublicAuthor
   include Graphqlable
   include Followable
+  include Documentable
 
   acts_as_votable
   acts_as_paranoid column: :hidden_at

app/views/budgets/investments/_filter_subnav.html.erb

@@ -25,7 +25,6 @@
           </h3>
         <% end %>
       </li>
-
     </ul>
   </div>
 </div>

app/views/proposals/_filter_subnav.html.erb

@@ -17,6 +17,14 @@
         </h3>
       <% end %>
       </li>
+      <li class="tabs-title">
+        <%= link_to "#tab-documents" do %>
+          <h3>
+            <%= t("documents.tab") %>
+            (<%= @proposal.documents.count %>)
+          </h3>
+        <% end %>
+      </li>
     </ul>
   </div>
 </div>

app/views/proposals/show.html.erb

@@ -16,6 +16,12 @@
       <div class="small-12 medium-9 column">
         <%= back_link_to %>
 
+        <% if can? :create, @document %>
+          <%= link_to t("documents.upload_document"),
+                      new_document_path(documentable_id: @proposal, documentable_type: @proposal.class.name, from: request.url),
+                      class: 'button hollow float-right' %>
+        <% end %>
+
         <% if author_of?(@proposal, current_user) %>
           <%= link_to t("proposals.show.send_notification"), new_proposal_notification_path(proposal_id: @proposal.id),
                       class: 'button hollow float-right' %>
@@ -156,4 +162,8 @@
   <div class="tabs-panel is-active" id="tab-comments">
     <%= render "proposals/comments" %>
   </div>
+
+  <div class="tabs-panel" id="tab-documents">
+    <%= render 'documents/documents', documents: @proposal.documents %>
+  </div>
 </div>