Read-only email field for LDAP user

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/controllers/profiles_controller.rb

@@ -13,6 +13,8 @@ class ProfilesController < ApplicationController
   end
 
   def update
+    params[:user].delete(:email) if @user.ldap_user?
+
     if @user.update_attributes(params[:user])
       flash[:notice] = "Profile was successfully updated"
     else

app/views/profiles/show.html.haml

@@ -21,9 +21,15 @@
         .controls
           = f.text_field :name, class: "input-xlarge", required: true
           %span.help-block Enter your name, so people you know can recognize you.
+
       .control-group
         = f.label :email, class: "control-label"
         .controls
+          - if @user.ldap_user?
+            = f.text_field :email, class: "input-xlarge", required: true, readonly: true
+            %span.help-block.light
+              Email is read-only for LDAP user
+          - else
             = f.text_field :email, class: "input-xlarge", required: true
             - if @user.unconfirmed_email.present?
               %span.help-block