[phase-5]add category field to term index/detail view, and edit form

app/controllers/glossary_terms_controller.rb

@@ -47,7 +47,7 @@ class GlossaryTermsController < ApplicationController
 
   def glossary_term_params
     params.require(:glossary_term).permit(
-      :name, :description
+      :name, :description, :category_id
     )
   end
 end

app/views/glossary_terms/_form.html.erb

@@ -1,4 +1,5 @@
 <div class="box tabular">
   <p><%= form.text_field :name, size: 80, required: true %></p>
+  <p><%= form.collection_select :category_id, GlossaryCategory.all, :id, :name, include_blank: true %>
   <p><%= form.text_area :description, size: "80x10", required: false %></p>
 </div>

app/views/glossary_terms/index.html.erb

@@ -7,16 +7,24 @@
 <table class="list">
   <thead>
     <tr>
+      <th>#</th>
       <th><%=l :field_name %></th>
+      <th><%=l :field_category %></th>
       <th><%=l :field_description %></th>
     </tr>
   </thead>
   <tbody>
     <% @glossary_terms.each do |term| %>
       <tr>
+	<td class="id">
+	  <%= term.id %>
+	</td>
 	<td class="name">
 	  <%= link_to term.name, term %>
 	</td>
+	<td class="roles">
+	  <%= term.category.try!(:name) %>
+	</td>
 	<td class="description">
 	  <%= term.description %>
 	</td>

app/views/glossary_terms/show.html.erb

@@ -9,6 +9,10 @@
 <h3><%= @term.name %></h3>
 
 <table>
+  <tr>
+    <th><%=l :field_category %></th>
+    <td><%= @term.category.try!(:name) %>
+  </tr>
   <tr>
     <th><%=l :field_description %></th>
     <td><%= @term.description %></td>