filter nodes by environment in webui

Author: sdelano

chef-server-webui/app/controllers/nodes.rb

@@ -28,10 +28,13 @@ class Nodes < Application
   before :require_admin, :only => [:destroy]
 
   def index
+    @environments = Chef::Environment.list.keys.sort
     begin
-      node_hash = Chef::Node.list
-      require 'pp'
-      pp node_hash
+      if params[:environment_id] 
+        node_hash = Chef::Node.list_by_environment(params[:environment_id])
+      else
+        node_hash = Chef::Node.list
+      end
       @node_list = node_hash.keys.sort
     rescue => e
       Chef::Log.error("#{e}\n#{e.backtrace.join("\n")}")

chef-server-webui/app/views/cookbooks/index.html.haml

@@ -2,7 +2,7 @@
 .block#block-tables
   .content
     %h2.title
-      = Cookbooks
+      Cookbooks
       %select{:name => "choice", :onchange => "jump(this)", :size => "1"}
         %option{:value => ""} Environments
         %option{:value => ""} ------------

chef-server-webui/app/views/nodes/index.html.haml

@@ -1,6 +1,14 @@
+%script{:type=>"text/javascript", :src => "/javascripts/drop_down_menu.js"}
 .block#block-tables
   .content
-    %h2.title Node List
+    %h2.title
+      Node List
+      %select{:name => "choice", :onchange => "jump(this)", :size => "1"}
+        %option{:value => ""} Environments
+        %option{:value => ""} ------------
+        %option{:value => url(:nodes)} All
+        - @environments.each do |environment|
+          %option{:value => url(:nodes_by_environment, :environment_id => environment), :selected => params[:environment_id] == environment}= environment
     .inner
       = partial('navigation', :active => 'index')
     .content
@@ -12,7 +20,10 @@
             %th.last  
           - even = false
           - if @node_list.empty?
-            %td{:colspan => 4}= "You appear to have no nodes - try connecting one, or creating or editing a #{link_to('client', url(:clients))}"
+            - if params[:environment_id]
+              %td{:colspan => 4}= "The environment #{params[:environment_id]} has no nodes"
+            - else
+              %td{:colspan => 4}= "You have no nodes - try connecting one, or creating or editing a #{link_to('node', url(:nodes))}"
           - else
             - @node_list.each do |node|
               %tr{:class => even ? "even": "odd" }

chef-server-webui/config/router.rb

@@ -19,6 +19,8 @@
 
 Merb::Router.prepare do
   resources :nodes, :id => /[^\/]+/
+  match("/nodes/_environments/:environment_id").to(:controller => "nodes", :action => "index").name(:nodes_by_environment)
+
   resources :clients, :id => /[^\/]+/
   resources :roles
   resources :environments do |e|