Refs #14: save changes

app/controllers/authors_controller.rb

@@ -16,12 +16,27 @@ def edit
   end
 
   def create
-    @author = Author.new(params.require(:author).permit(:first_name, :last_name, :homepage))
+    @author = Author.new(author_params)
 
     if @author.save
       redirect_to @author
     else
       render 'new'
     end
   end
+
+  def update
+    @author = Author.find(params[:id])
+
+    if @author.update(author_params)
+      redirect_to @author
+    else
+      render 'edit'
+    end
+  end
+end
+
+private
+def author_params
+  params.require(:author).permit(:first_name, :last_name, :homepage)
 end

spec/features/author/edit_author_spec.rb

@@ -7,6 +7,7 @@
   end
   it 'should edit with no error' do
     @alan = FactoryGirl.create :author
+    visit edit_author_path(@alan)
 
     fill_in 'author_first_name', with: 'Alan Mathison'
     find('input[type="submit"]').click