_messages.html.haml

- flash.each do |name, msg|
  %div{:class => "alert alert-#{name == :notice ? "success" : "error"}"}
    %a.close{"data-dismiss" => "alert"} ×
    = content_tag :div, msg, :id => "flash_#{name}" if msg.is_a?(String)

application.html.haml

#main{:role => "main"}
      .container
        = render 'layouts/messages'
        = yield

edit.html.haml

%h3 Edit Profile
.row-fluid
  .span12
    .full-graph
      .padded
        = form_for @user, url: update_profile_path, html: {class: 'form-horizontal'} do |f|
          .control-group
            %label.control-label First name
            .controls
              = f.text_field :first_name

profile_controller.rb

def update
    @user = current_user
    if @user.update_attributes(params[:user])
      flash[:notice] = "Profile updated successfully"
      redirect_to profile_url
    else
      flash[:error] = @user.errors.full_messages.to_sentence
      logger.error("*******************************#{@user.errors.full_messages.to_sentence}")
      render :action => 'edit'
    end
  end