First steps for an own wiki.

* Scaffold for Page Objekt
* Using textile for rendering html
* Easy wiki-links with [[wikipage]]

app/controllers/pages_controller.rb

@@ -0,0 +1,86 @@
+class PagesController < ApplicationController
+
+  def index
+    @page = Page.find_by_permalink "home"
+
+    if @page
+      render :action => 'show'
+    else
+      redirect_to all_pages_path
+    end
+  end
+
+  def show
+    @page = Page.find_by_permalink(params[:permalink])
+
+    if @page.nil?
+      redirect_to new_page_path(:title => params[:permalink])
+    end
+  end
+
+  # GET /pages/new
+  # GET /pages/new.xml
+  def new
+    @page = Page.new(:title => params[:title])
+
+    respond_to do |format|
+      format.html # new.html.erb
+      format.xml  { render :xml => @page }
+    end
+  end
+
+  # GET /pages/1/edit
+  def edit
+    @page = Page.find(params[:id])
+  end
+
+  # POST /pages
+  # POST /pages.xml
+  def create
+    @page = Page.new(params[:page])
+
+    respond_to do |format|
+      if @page.save
+        flash[:notice] = 'Page was successfully created.'
+        format.html { redirect_to(@page) }
+        format.xml  { render :xml => @page, :status => :created, :location => @page }
+      else
+        format.html { render :action => "new" }
+        format.xml  { render :xml => @page.errors, :status => :unprocessable_entity }
+      end
+    end
+  end
+
+  # PUT /pages/1
+  # PUT /pages/1.xml
+  def update
+    @page = Page.find(params[:id])
+
+    respond_to do |format|
+      if @page.update_attributes(params[:page])
+        flash[:notice] = 'Page was successfully updated.'
+        format.html { redirect_to(@page) }
+        format.xml  { head :ok }
+      else
+        format.html { render :action => "edit" }
+        format.xml  { render :xml => @page.errors, :status => :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /pages/1
+  # DELETE /pages/1.xml
+  def destroy
+    @page = Page.find(params[:id])
+    @page.destroy
+
+    respond_to do |format|
+      format.html { redirect_to(pages_url) }
+      format.xml  { head :ok }
+    end
+  end
+
+  def all
+    @pages = Page.all :order => 'created_at'
+  end
+end

app/helpers/pages_helper.rb

@@ -0,0 +1,18 @@
+module PagesHelper
+
+  def wikified_body(body)
+    r = RedCloth.new(body)
+    r.gsub!(/\[\[(.*?)(\|(.*?))?\]\]/) { wiki_link($1, $3) }
+    sanitize r.to_html
+    r.to_html
+  end
+
+  def wiki_link(wiki_words, link_text = nil)
+    permalink = wiki_words.downcase.gsub(' ', '-')
+    if Page.exists?(:permalink => permalink)
+      link_to((link_text || wiki_words), wiki_page_url(permalink))
+    else
+      link_to((link_text || wiki_words), wiki_page_url(permalink), :class => "new_wiki_link")
+    end
+  end
+end

app/models/page.rb

@@ -0,0 +1,12 @@
+class Page < ActiveRecord::Base
+
+  validates_presence_of :title, :body
+
+  before_save :set_permalink
+
+  def set_permalink
+    if self.permalink.blank? #FIXME: or title.changed?
+      self.permalink = Page.count == 0 ? "home" : "#{title.downcase.strip.gsub(/ |\.|@/, '-')}"
+    end
+  end
+end

app/views/layouts/_main_tabnav.html.erb

@@ -16,6 +16,11 @@
           { :name => "Aufgaben", :url => "/tasks"}
         ]
       },
+      { :name => "Wiki", :url => "/pages", :active => ["pages", "wiki"],
+        :subnav => [
+          { :name => "Alle Seiten", :url => "pages/all" }
+        ]
+      },
       { :name => "Bestellungen", :url => u.ordergroup ? "/ordering/" : "/orders",
         :active => ["orders", "ordering"],
         :subnav => [

app/views/pages/_form.html.haml

@@ -0,0 +1,15 @@
+- form_for @page do |f|
+  = f.error_messages
+
+  %p
+    %b Title
+    %br/
+    = f.text_field :title
+  %p
+    %b Inhalt
+    %br/
+    = f.text_area :body, :size => "60x30"
+  %p
+    = f.submit "Speichern"
+    |
+    = link_to "Abbrechen", :back

app/views/pages/all.html.haml

@@ -0,0 +1,12 @@
+- title "Alle Wikiseiten"
+
+%p= link_to "Neue Seite anlegen", new_page_path
+
+%table
+  %tr
+    %th Title
+    %th zuletzt aktualisiert
+  - for page in @pages
+    %tr
+      %td= link_to page.title, page
+      %td= format_date page.updated_at

app/views/pages/edit.html.haml

@@ -0,0 +1,3 @@
+- title "#{@page.title} bearbeiten"
+
+= render :partial => 'form'

app/views/pages/new.html.haml

@@ -0,0 +1,3 @@
+- title "Neue Wikiseite anlegen"
+
+= render :partial => 'form'

app/views/pages/show.html.haml

@@ -0,0 +1,7 @@
+- title @page.title
+
+= wikified_body @page.body
+
+%hr/
+%p
+  = link_to "Seite bearbeiten", edit_page_path(@page)

config/environment.rb

@@ -68,6 +68,7 @@ Rails::Initializer.run do |config|
   config.gem "fastercsv"
   config.gem "prawn"
   config.gem "haml", :version => '>=2.0.6'
+  config.gem 'RedCloth'
 
   # The internationalization framework can be changed to have another default locale (standard is :en) or more load paths.
   # All files from config/locales/*.rb,yml are added automatically.

config/routes.rb

@@ -1,4 +1,6 @@
 ActionController::Routing::Routes.draw do |map|
+  map.resources :pages, :collection => { :all => :get }
+  map.wiki_page "/wiki/:permalink", :controller => 'pages', :action => 'show'
 
   map.logout '/logout', :controller => 'login', :action => 'logout'
   map.my_profile '/home/profile', :controller => 'home', :action => 'profile'

db/migrate/20090325175756_create_pages.rb

@@ -0,0 +1,15 @@
+class CreatePages < ActiveRecord::Migration
+  def self.up
+    create_table :pages do |t|
+      t.string :title
+      t.text :body
+      t.string :permalink
+
+      t.timestamps
+    end
+  end
+
+  def self.down
+    drop_table :pages
+  end
+end

db/schema.rb

@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20090317175355) do
+ActiveRecord::Schema.define(:version => 20090325175756) do
 
   create_table "article_categories", :force => true do |t|
     t.string "name",        :default => "", :null => false
@@ -211,6 +211,14 @@ ActiveRecord::Schema.define(:version => 20090317175355) do
     t.decimal  "foodcoop_result",    :precision => 8, :scale => 2
   end
 
+  create_table "pages", :force => true do |t|
+    t.string   "title"
+    t.text     "body"
+    t.string   "permalink"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
   create_table "stock_changes", :force => true do |t|
     t.integer  "delivery_id"
     t.integer  "order_id"

test/fixtures/pages.yml

@@ -0,0 +1,11 @@
+# Read about fixtures at http://ar.rubyonrails.org/classes/Fixtures.html
+
+one:
+  title: MyString
+  body: MyText
+  permalink: MyString
+
+two:
+  title: MyString
+  body: MyText
+  permalink: MyString

test/functional/pages_controller_test.rb

@@ -0,0 +1,45 @@
+require 'test_helper'
+
+class PagesControllerTest < ActionController::TestCase
+  test "should get index" do
+    get :index
+    assert_response :success
+    assert_not_nil assigns(:pages)
+  end
+
+  test "should get new" do
+    get :new
+    assert_response :success
+  end
+
+  test "should create page" do
+    assert_difference('Page.count') do
+      post :create, :page => { }
+    end
+
+    assert_redirected_to page_path(assigns(:page))
+  end
+
+  test "should show page" do
+    get :show, :id => pages(:one).id
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get :edit, :id => pages(:one).id
+    assert_response :success
+  end
+
+  test "should update page" do
+    put :update, :id => pages(:one).id, :page => { }
+    assert_redirected_to page_path(assigns(:page))
+  end
+
+  test "should destroy page" do
+    assert_difference('Page.count', -1) do
+      delete :destroy, :id => pages(:one).id
+    end
+
+    assert_redirected_to pages_path
+  end
+end

test/unit/page_test.rb

@@ -0,0 +1,8 @@
+require 'test_helper'
+
+class PageTest < ActiveSupport::TestCase
+  # Replace this with your real tests.
+  test "the truth" do
+    assert true
+  end
+end