[phase-4]edit, update

app/controllers/glossary_terms_controller.rb

@@ -1,6 +1,6 @@
 class GlossaryTermsController < ApplicationController
 
-  before_action :find_term_from_id, only: [:show]
+  before_action :find_term_from_id, only: [:show, :edit, :update]
   
   def index
     @glossary_terms = GlossaryTerm.all
@@ -14,10 +14,23 @@ class GlossaryTermsController < ApplicationController
     term = GlossaryTerm.new(glossary_term_params)
     if term.save
       flash[:notice] = l(:notice_successful_create)
-      redirect_to glossary_term_path(term.id)
+      redirect_to term
     end
   end
 
+  def edit
+  end
+
+  def update
+    @term.attributes = glossary_term_params
+    if @term.save
+      flash[:notice] = l(:notice_successful_update)
+      redirect_to @term
+    end
+  rescue ActiveRecord::StaleObjectError
+    flash.now[:error] = l(:notice_locking_conflict)
+  end
+  
   # Find the term whose id is the :id parameter
   def find_term_from_id
     @term = GlossaryTerm.find(params[:id])

app/views/glossary_terms/edit.html.erb

@@ -0,0 +1,7 @@
+<h2><%=l :label_glossary_term %> #<%= @term.id %></h2>
+
+<%= labelled_form_for :glossary_term, @term, url: glossary_term_path do |f| %>
+  <%= render partial: 'glossary_terms/form', locals: {form: f} %>
+  <%= f.submit l(:button_edit) %>
+<% end %>
+

app/views/glossary_terms/index.html.erb

@@ -1,5 +1,9 @@
 <h2><%=l :label_glossary_terms %></h2>
 
+<div class="contextual">
+  <%= link_to l(:label_glossary_term_new), new_glossary_term_path, class: 'icon icon-add' %>
+</div>
+  
 <table class="list">
   <thead>
     <tr>

app/views/glossary_terms/show.html.erb

@@ -1,3 +1,7 @@
+<div class="contextual">
+  <%= link_to l(:button_edit), edit_glossary_term_path, class: 'icon icon-edit' %>
+</div>
+
 <h2><%=l :label_glossary_term %> #<%= @term.id %></h2>
 
 <h3><%= @term.name %></h3>

config/routes.rb

@@ -2,5 +2,5 @@
 # See: http://guides.rubyonrails.org/routing.html
 
 Rails.application.routes.draw do
-  resources :glossary_terms, only: [:index, :show, :new, :create]
+  resources :glossary_terms
 end