Wiki: history

app/controllers/wikis_controller.rb

@@ -4,7 +4,11 @@ class WikisController < ApplicationController
   layout "project"
   
   def show
-    @wiki = @project.wikis.where(:slug => params[:id]).order("created_at").last
+    if params[:old_page_id]
+      @wiki = @project.wikis.find(params[:old_page_id])
+    else
+      @wiki = @project.wikis.where(:slug => params[:id]).order("created_at").last
+    end
     respond_to do |format|
       if @wiki
         format.html
@@ -22,6 +26,7 @@ class WikisController < ApplicationController
 
   def create
     @wiki = @project.wikis.new(params[:wiki])
+    @wiki.user = current_user
 
     respond_to do |format|
       if @wiki.save
@@ -31,6 +36,10 @@ class WikisController < ApplicationController
       end
     end
   end
+
+  def history
+    @wikis = @project.wikis.where(:slug => params[:id]).order("created_at")
+  end
   
   def destroy
     @wiki = @project.wikis.find(params[:id])

app/models/wiki.rb

@@ -1,7 +1,8 @@
 class Wiki < ActiveRecord::Base
   belongs_to :project
+  belongs_to :user
 
-  validates :content, :title, :presence => true
+  validates :content, :title, :user_id, :presence => true
   validates :title, :length => 1..250
 
   before_update :set_slug

app/views/wikis/history.html.haml

@@ -0,0 +1,14 @@
+%h2 Versions
+%table
+  %thead
+    %tr
+      %th #
+      %th last edit
+      %th created by
+  %tbody
+    - @wikis.each_with_index do |wiki_page, i|
+      %tr
+        %td= i + 1
+        %td= link_to wiki_page.created_at.to_s(:short), project_wiki_path(@project, wiki_page, :old_page_id => wiki_page.id)
+        %td= wiki_page.user.name
+

app/views/wikis/show.html.haml

@@ -1,6 +1,8 @@
 %h3
   = @wiki.title
   - if can? current_user, :write_wiki, @project
+    = link_to history_project_wiki_path(@project, @wiki), :class => "right btn small" do
+      History
     = link_to edit_project_wiki_path(@project, @wiki), :class => "right btn small" do
       Edit