Wiki: base implemetation logic

app/controllers/wikis_controller.rb

 class WikisController < ApplicationController
   before_filter :project
   layout "project"
-  respond_to :html
   
   def show
-    @wiki = @project.wikis.find_by_slug(params[:id])
-    respond_with(@wiki)
-  end
-
-  def new
-    @wiki = Wiki.new
-
+    @wiki = @project.wikis.where(:slug => params[:id]).order("created_at").last
     respond_to do |format|
-      format.html # new.html.erb
-      format.json { render json: @wiki }
+      if @wiki
+        format.html
+      else
+        @wiki = @project.wikis.new(:slug => params[:id])
+        format.html { render "edit" }
+      end
     end
   end
 
   def edit
-    @wiki = Wiki.find(params[:id])
+    @wiki = @project.wikis.where(:slug => params[:id]).order("created_at").last
+    @wiki = Wiki.regenerate_from @wiki
   end
 
   def create
-    @wiki = Wiki.new(params[:wiki])
+    @wiki = @project.wikis.new(params[:wiki])
 
     respond_to do |format|
       if @wiki.save
-        format.html { redirect_to @wiki, notice: 'Wiki was successfully created.' }
-        format.json { render json: @wiki, status: :created, location: @wiki }
-      else
-        format.html { render action: "new" }
-        format.json { render json: @wiki.errors, status: :unprocessable_entity }
-      end
-    end
-  end
-
-  def update
-    @wiki = Wiki.find(params[:id])
-
-    respond_to do |format|
-      if @wiki.update_attributes(params[:wiki])
-        format.html { redirect_to @wiki, notice: 'Wiki was successfully updated.' }
-        format.json { head :no_content }
+        format.html { redirect_to [@project, @wiki], notice: 'Wiki was successfully updated.' }
       else
         format.html { render action: "edit" }
-        format.json { render json: @wiki.errors, status: :unprocessable_entity }
       end
     end
   end
-
+  
   def destroy
-    @wiki = Wiki.find(params[:id])
+    @wiki = @project.wikis.find(params[:id])
     @wiki.destroy
 
     respond_to do |format|
       format.html { redirect_to wikis_url }
-      format.json { head :no_content }
     end
   end
 end

app/models/wiki.rb

@@ -2,10 +2,9 @@ class Wiki < ActiveRecord::Base
   belongs_to :project
 
   validates :content, :title, :presence => true
-  validates :title, :length => 1..250,
-                    :uniqueness => {:scope => :project_id, :case_sensitive => false}
+  validates :title, :length => 1..250
 
-  before_save :set_slug
+  before_update :set_slug
 
 
   def to_param
@@ -17,4 +16,17 @@ class Wiki < ActiveRecord::Base
   def set_slug
     self.slug = self.title.parameterize
   end
+
+  class << self
+    def regenerate_from wiki
+      regenerated_field = [:slug, :content, :title]
+
+      new_wiki = Wiki.new
+      regenerated_field.each do |field|
+        new_wiki.send("#{field}=", wiki.send(field))
+      end
+      new_wiki
+    end
+
+  end
 end

app/views/layouts/_project_menu.html.haml

@@ -21,5 +21,5 @@
         Wall
     
     - if @project.wiki_enabled
-      -#= link_to project_wikis_path(@project), :class => current_page?(:controller => "projects", :action => "wiki", :id => @project) ? "current" : nil do
+      = link_to project_wiki_path(@project, :index), :class => current_page?(:controller => "projects", :action => "wiki", :id => @project) ? "current" : nil do
         Wiki

app/views/wikis/_form.html.haml

-= form_for @wiki do |f|
+= form_for [@project, @wiki] do |f|
   -if @wiki.errors.any?
     #error_explanation
       %h2= "#{pluralize(@wiki.errors.count, "error")} prohibited this wiki from being saved:"
@@ -9,6 +9,7 @@
   .field
     = f.label :title
     = f.text_field :title
+    = f.hidden_field :slug
   .field
     = f.label :content
     = f.text_area :content

app/views/wikis/edit.html.haml

-%h1 Editing wiki
+%h1 Editing page
 
 = render 'form'
 
-= link_to 'Show', @wiki
-\|
-= link_to 'Back', wikis_path
+= link_to 'Show', [@project, @wiki]

app/views/wikis/index.html.haml

-%h1 Listing wikis
-
-%table
-  %tr
-    %th Title
-    %th Content
-    %th
-    %th
-    %th
-
-  - @wikis.each do |wiki|
-    %tr
-      %td= wiki.title
-      %td= wiki.content
-      %td= link_to 'Show', wiki
-      %td= link_to 'Edit', edit_wiki_path(wiki)
-      %td= link_to 'Destroy', wiki, :confirm => 'Are you sure?', :method => :delete
-
-%br
-
-= link_to 'New Wiki', new_wiki_path

app/views/wikis/new.html.haml

-%h1 New wiki
-
-= render 'form'
-
-= link_to 'Back', wikis_path

config/routes.rb

@@ -56,7 +56,8 @@ Gitlab::Application.routes.draw do
       get "files"
     end
 
-    resources :wikis, :only => [:show, :edit, :destroy]
+    resources :wikis, :only => [:show, :edit, :destroy, :create]
+
     resource :repository do 
       member do 
         get "branches"