Budget::Investment::Milestone is imageable

Admin form attaches an image
Milestone list has a column "Image", empty or with a link to the image

app/controllers/admin/budget_investment_milestones_controller.rb

@@ -40,7 +40,8 @@ class Admin::BudgetInvestmentMilestonesController < Admin::BaseController
 
   def milestone_params
     params.require(:budget_investment_milestone)
-          .permit(:title, :description, :budget_investment_id)
+          .permit(:title, :description, :budget_investment_id,
+                  image_attributes: [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy])
   end
 
   def load_budget_investment

app/models/budget/investment/milestone.rb

@@ -1,6 +1,8 @@
 class Budget
   class Investment
     class Milestone < ActiveRecord::Base
+      include Imageable
+
       belongs_to :investment
 
       validates :title, presence: true

app/views/admin/budget_investment_milestones/_form.html.erb

@@ -2,6 +2,7 @@
 
   <%= f.text_field :title, maxlength: Budget::Investment::Milestone.title_max_length %>
   <%= f.text_area :description, rows: 5 %>
+  <%= render 'images/admin_image', imageable: @milestone, f: f %>
 
   <%= f.submit nil, class: "button success" %>
 <% end %>

app/views/admin/budget_investments/_milestones.html.erb

@@ -5,6 +5,7 @@
         <th><%= t("admin.milestones.index.table_id") %></th>
         <th><%= t("admin.milestones.index.table_title") %></th>
         <th><%= t("admin.milestones.index.table_description") %></th>
+        <th><%= t("admin.milestones.index.image") %></th>
         <th><%= t("admin.milestones.index.table_actions") %></th>
       </tr>
     </thead>
@@ -20,6 +21,9 @@
           <td class="small">
             <%= milestone.description %>
           </td>
+          <td class="small">
+            <%= link_to 'Ver imagen', milestone.image_url(:large), target: :_blank if milestone.image.present? %>
+          </td>
           <td>
             <%= link_to t("admin.milestones.index.delete"), admin_budget_budget_investment_budget_investment_milestone_path(@investment.budget, @investment, milestone),
                         method: :delete,