[phase-20]Make category index reorder

app/controllers/glossary_categories_controller.rb

@@ -4,7 +4,7 @@ class GlossaryCategoriesController < ApplicationController
   before_action :find_project_by_project_id, :authorize
   
   def index
-    @categories = GlossaryCategory.where(project_id: @project.id)
+    @categories = GlossaryCategory.where(project_id: @project.id).sorted
   end
 
   def show
@@ -28,7 +28,15 @@ class GlossaryCategoriesController < ApplicationController
   def update
     @category.attributes = glossary_category_params
     if @category.save
-      redirect_to [@project, @category], notice: l(:notice_successful_update)
+      respond_to do |format|
+        format.html {
+          redirect_to [@project, @category],
+            notice: l(:notice_successful_update)
+        }
+        format.js {
+          head 200
+        }
+      end
     end
   rescue ActiveRecord::StaleObjectError
     flash.now[:error] = l(:notice_locking_conflict)
@@ -50,7 +58,7 @@ class GlossaryCategoriesController < ApplicationController
 
   def glossary_category_params
     params.require(:glossary_category).permit(
-      :name
+      :name, :position
     )
   end
 end

app/models/glossary_category.rb

@@ -1,4 +1,9 @@
 class GlossaryCategory < ActiveRecord::Base
   has_many :terms, class_name: 'GlossaryTerm', foreign_key: 'category_id'
   belongs_to :project
+
+  acts_as_positioned
+
+  scope :sorted, lambda { order(:position) }
+  
 end

app/views/glossary_categories/index.html.erb

@@ -8,11 +8,12 @@
 
 <%= render partial: 'glossary_terms/sidebar' %>
 
-<table class="list">
+<table class="list table-sortable">
   <thead>
     <tr>
       <th>#</th>
       <th><%=l :field_name %></th>
+      <th/>
     </tr>
   </thead>
   <tbody>
@@ -20,7 +21,14 @@
       <tr>
 	<td class="id"><%= category.id %></td>
 	<td class="name"><%= link_to category.name, [@project, category] %></td>
+	<td class="buttons">
+	  <%= reorder_handle(category, url: project_glossary_category_path(@project, category)) %>
+	</td>
       </tr>
     <% end %>
   </tbody>
 </table>
+
+<%= javascript_tag do %>
+  $(function() { $("table.table-sortable tbody").positionedItems(); });
+<% end %>

db/migrate/006_add_position_to_glossary_categories.rb

@@ -0,0 +1,6 @@
+class AddPositionToGlossaryCategories < ActiveRecord::Migration[5.2]
+
+  def change
+    add_column :glossary_categories, :position, :integer, default: nil
+  end
+end