Add announcement admin and view template

app/controllers/admin/announcements_controller.rb

@@ -0,0 +1,66 @@
+class Admin::AnnouncementsController < ApplicationController
+  
+  layout "admin"
+  
+  def index
+    @announcements = Announcement.all
+
+    respond_to do |format|
+      format.html # index.html.erb
+      format.xml  { render :xml => @announcements }
+    end
+  end
+
+  def new
+    @announcement = Announcement.new
+
+    respond_to do |format|
+      format.html # new.html.erb
+      format.xml  { render :xml => @announcement }
+    end
+  end
+
+  def edit
+    @announcement = Announcement.find(params[:id])
+  end
+
+  def create
+    @announcement = Announcement.new(params[:announcement])
+
+    respond_to do |format|
+      if @announcement.save
+        flash[:notice] = 'Announcement was successfully created.'
+        format.html { redirect_to admin_announcements_path }
+        format.xml  { render :xml => @announcement, :status => :created, :location => @announcement }
+      else
+        format.html { render :action => "new" }
+        format.xml  { render :xml => @announcement.errors, :status => :unprocessable_entity }
+      end
+    end
+  end
+
+  def update
+    @announcement = Announcement.find(params[:id])
+
+    respond_to do |format|
+      if @announcement.update_attributes(params[:announcement])
+        flash[:notice] = 'Announcement was successfully updated.'
+        format.html { redirect_to admin_announcements_path }
+        format.xml  { head :ok }
+      else
+        format.html { render :action => "edit" }
+        format.xml  { render :xml => @announcement.errors, :status => :unprocessable_entity }
+      end
+    end
+  end
+
+  def destroy
+    @announcement = Announcement.find(params[:id])
+    @announcement.destroy
+
+    respond_to do |format|
+      format.html { redirect_to admin_announcements_path }
+      format.xml  { head :ok }
+    end
+  end
+end