_mailboxes.html.erb

<div class="user-messages-nav">
  <span <%= current == "inbox" ? 'class = "active" ' : '' %>>
    <%= link_to "Inbox", :controller => :mailboxes, :action => :show, :user_id => current_user.id, :id => "inbox" %>
  </span>
  <span <%= current == "sentbox" ? 'class = "active" ' : '' %>>
    <%= link_to "Sent Messages", :controller => :mailboxes, :action => :show, :user_id => current_user.id, :id => "sentbox" %>
  </span>
  <span <%= current == "trash" ? 'class = "active" ' : '' %>>
    <%= link_to "Archive", :controller => :mailboxes, :action => :show, :user_id => current_user.id, :id => "trash" %>
  </span>
  <span>
    <%= link_to "Compose Message",:controller => :messages,  :action => :new,  :user_id => current_user.id %>
  </span>
</div>

_message.html.erb

<tr class="listRow0" onmouseover="oldColor = this.style.backgroundColor; this.style.backgroundColor = '#cfc'" onmouseout="this.style.backgroundColor = oldColor">
  <td valign="top" nowrap="nowrap" class="grid_cell">
    <%= check_box_tag "message_ids[]",message.id %>
  </td>
  <td class="grid_cell" onclick="location = '<%= user_message_url(current_user,message) %>'">
    <%= message.created_at.to_s(:long_am_pm) %>
  </td>
  <td class="grid_cell" onclick="location = '<%= user_message_url(current_user,message) %>'">
    <%= message.message.sender.name %>
  </td>
  <td class="grid_cell" onclick="location = '<%= user_message_url(current_user,message) %>'">
    <%= message.message.subject %>
  </td>
  <td class="grid_cell" onclick="location = '<%= user_message_url(current_user,message) %>'">
    <%= show_message_status(message) %>
  </td>
  <td valign="top" class="grid_cell" nowrap align="right">
    <% links = [] %>
    <% links.push(link_to 'Read', user_message_path(current_user,message)) %>
    <% links.push(link_to 'Delete', user_message_path(current_user,message), :confirm => 'Are you sure?', :method => :delete) %>
    <%= quick_menu(:title => 'Options', :identifier => message.id.to_s, :links => links) %>
  </td>
</tr>

mailboxes_controller.rb

class MailboxesController < ApplicationController

  before_filter :login_required
  before_filter :find_user_and_mailbox_from_params

  # GET /users/:user_id/mailboxes
  def index
    redirect_to :action => :show, :user_id => params[:user_id], :id => "inbox"
  end

  # GET /users/:user_id/mailboxes/:id
  # GET /users/:user_id/mailboxes/:id.:format
  def show
    @messages = @mailbox.mail
  end

  def update
    @messages = get_messages_from_params
    @todo = params[:command]
    @messages.each do |message|
      if @todo == "archive"
        @user.mailbox.move_to(:trash, :conditions => "mail.id = #{message.id}")
      elsif @todo == "unread"
        @user.mailbox.move_to(:inbox, :conditions => "mail.id = #{message.id}")
        message.mark_as_unread
      elsif @todo == "read"
        @user.mailbox.move_to(:inbox, :conditions => "mail.id = #{message.id}")
        message.mark_as_read
      elsif @todo == "delete"
        @user.mailbox.delete(:conditions => "mail.id = #{message.id}")
      end
    end
    redirect_to :action => :show, :user_id => params[:user_id], :id => params[:type]
  end

protected
  def find_user_and_mailbox_from_params
    @user = User.find(params[:user_id])
    @mailbox = @user.mailbox[params[:id]] if params[:id]
    @mailbox_type = params[:id]
  end

  def get_messages_from_params
    messages = []
    params[:message_ids].each do |id|
      messages << Mail.find(id)
    end
    messages
  end
end

messages_controller.rb

class MessagesController < ApplicationController
  before_filter :login_required
  before_filter :find_user_from_params, :except => :reply_create

  # GET /users/:user_id/messages/:id
  # GET /users/:user_id/messages/:id.:format
  def show
    @mail = Mail.find(params[:id])
    @mail.mark_as_read; @mail.save

    @message = @mail.message

    respond_to do |format|
      format.html # show.html.erb
      format.xml { render :xml => @message.to_xml }
    end
  end

  # GET /users/:user_id/messages/new
  def new
    @send_to = params[:send_to]
    @message = Message.new(:subject => params[:subject])
  end

  # POST /users/:user_id/messages
  def create
    @user = current_user
    respond_to do |format|
      if @user.send_message(find_recipients_from_params, params[:message][:body], params[:message][:subject])
        format.html { redirect_to user_mailboxes_url(@user)}
      end
    end
  end

  # GET /users/:user_id/messages/reply/:id
  def reply
    @user = current_user
    @old_message = Mail.find(params[:id])
    @message = Message.new(:subject => "RE:#{@old_message.message.subject}")
  end

  # POST /messages/reply_create/:id
  def reply_create
    @user = current_user
    @old_message = Mail.find(params[:id])
    respond_to do |format|
      if @user.reply_to_sender(@old_message,params[:message][:body])
        format.html { redirect_to user_mailboxes_url(@user)}
      end
    end
  end

  # DELETE /users/:user_id/messages/:id
  def destroy
    @message = Mail.find(params[:id])
    @user.mailbox.delete(:conditions => "mail.id = #{@message.id}")

    respond_to do |format|
      format.html { redirect_to user_mailboxes_url(@user) }
      format.xml  { head :ok }
    end
  end

protected
  def find_user_from_params
    @user = User.find(params[:user_id])
  end

  def find_recipients_from_params
    recipients = []
    params[:message][:send_ids].each do |id|
      recipients << User.find(id)
    end
    recipients
  end
end

new.html.erb

<h1>Compose Message</h1>
<%= render :partial => "mailboxes/mailboxes", :locals => {:current => "new"}%>
<% form_for([current_user,@message]) do |f| %>
  <table border="0" cellspacing="0" cellpadding="0" width="60%" class="listContainer">
    <tr valign="top">
      <td width="5"><%= image_tag 'tb-1tp.gif', :width => 5, :height => 5 %></td>
      <td width="*"><%= image_tag 'spacer.gif', :width => 1, :height => 5 %></td>
      <td width="5"><%= image_tag 'tb-2tp.gif', :width => 5, :height => 5 %></td>
    </tr>
    <tr valign="top">
      <td width="5"><%= image_tag "spacer.gif", :width => 5, :height => 1 %></td>
      <td width="*">
        <table cellspacing="0" width="100%" cellpadding="5" class="formbox1">
          <tr>
            <td valign="top" class="formHead3">Details</td>
            <td align="right" class="formHead3">
              <%= f.submit "Send", :class => "btn" %>
            </td>
          </tr>
          <tr>
            <td valign="top" class="formbox2" width="100">&nbsp;</td>
            <td valign="top">&nbsp;</td>
          </tr>
          <tr>
            <td class="formbox2"><span class="label">Send To: </span></td>
            <td>
              <% User.can_receive_email.each do |user| %>
                <%= check_box_tag "message[send_ids][]",user.id, @send_to.to_i == user.id -%> <%= user.name %><br />
              <% end %>
            </td>
          </tr>
          <tr>
            <td class="formbox2"><span class="label">Subject: </span></td>
            <td><%= f.text_field :subject %></td>
          </tr>
          <tr>
            <td class="formbox2"><span class="label">Body: </span></td>
            <td><%= f.text_area :body %></td>
          </tr>
          <tr>
            <td colspan="2" align="right" class="formHead3">
              <%= f.submit "Send", :class => "btn" %>
            </td>
          </tr>
        </table>
      </td>
    </tr>
    <tr valign="top">
      <td width="5"><%= image_tag 'tb-2.gif', :width => 5, :height => 5 %></td>
      <td width="*"><%= image_tag 'spacer.gif', :width => 1, :height => 5 %></td>
      <td width="5"><%= image_tag 'tb-1.gif', :width => 5, :height => 5 %></td>
    </tr>
  </table>
<% end %>

reply.html.erb

<h1>Compose Message</h1>
<%= render :partial => "mailboxes/mailboxes", :locals => {:current => "new"}%>
<% form_for(@message, :url =>"/messages/reply_create/#{@old_message.id}", :method => :post) do |f| %>
  <%= hidden_field_tag "reply_id", @old_message.id %>
  <table border="0" cellspacing="0" cellpadding="0" width="60%" class="listContainer">
    <tr valign="top">
      <td width="5"><%= image_tag 'tb-1tp.gif', :width => 5, :height => 5 %></td>
      <td width="*"><%= image_tag 'spacer.gif', :width => 1, :height => 5 %></td>
      <td width="5"><%= image_tag 'tb-2tp.gif', :width => 5, :height => 5 %></td>
    </tr>
    <tr valign="top">
      <td width="5"><%= image_tag "spacer.gif", :width => 5, :height => 1 %></td>
      <td width="*">
        <table cellspacing="0" width="100%" cellpadding="5" class="formbox1">
          <tr>
            <td valign="top" class="formHead3">Details</td>
            <td align="right" class="formHead3">
              <%= f.submit "Send", :class => "btn" %>
            </td>
          </tr>
          <tr>
            <td valign="top" class="formbox2" width="100">&nbsp;</td>
            <td valign="top">&nbsp;</td>
          </tr>
          <tr>
            <td class="formbox2"><span class="label">Send To: </span></td>
            <td>
                <%= @old_message.message.sender.name %>
            </td>
          </tr>
          <tr>
            <td class="formbox2"><span class="label">Subject: </span></td>
            <td><%= @message.subject %></td>
          </tr>
          <tr>
            <td class="formbox2"><span class="label">Body: </span></td>
            <td><%= f.text_area :body %></td>
          </tr>
          <tr>
            <td colspan="2" align="right" class="formHead3">
              <%= f.submit "Send", :class => "btn" %>
            </td>
          </tr>
        </table>
      </td>
    </tr>
    <tr valign="top">
      <td width="5"><%= image_tag 'tb-2.gif', :width => 5, :height => 5 %></td>
      <td width="*"><%= image_tag 'spacer.gif', :width => 1, :height => 5 %></td>
      <td width="5"><%= image_tag 'tb-1.gif', :width => 5, :height => 5 %></td>
    </tr>
  </table>
<% end %>

show.html.erb

<h1><%= @mailbox_type.capitalize %> Messages</h1>
<%= render :partial => "mailboxes/mailboxes", :locals => {:current => @mailbox_type}%>
<% form_tag url_for(:action => :update), :id => "mailboxes_form", :method => :put do |f| %>
  <%= select_tag "command", options_for_select([["",""],
                                               ["Send to Archive", "archive"],
                                               ["Mark as New", "unread"],
                                               ["Mark as Read", "read"],
                                               ["Delete","delete"]]),
                            :onchange => "$('mailboxes_form').submit()" %>
  <%= hidden_field_tag 'type', @mailbox_type %>
  <table width="75%" cellspacing="0" cellpadding="2" style="border:thin solid #444444; color:#FFFFFF;">
    <tr>
      <td class="listInactiveColumnHead" align="center">&nbsp;</td>
      <td class="listInactiveColumnHead"><span class="listInactiveColumnHeadText">Date</span></td>
      <td class="listInactiveColumnHead"><span class="listInactiveColumnHeadText">Sender</span></td>
      <td class="listInactiveColumnHead"><span class="listInactiveColumnHeadText">Subject</span></td>
      <td class="listInactiveColumnHead"><span class="listInactiveColumnHeadText">Status</span></td>
      <td class="listInactiveColumnHead" align="center">&nbsp;</td>
    </tr>
      <%= render :partial => "message", :collection => @messages, :locals => {:form => f} if @messages%>

  </table>
<% end %>

show.html.erb

<h1>Message Details</h1>
<%= render :partial => "mailboxes/mailboxes", :locals => {:current => :none}%>

<table border="0" cellspacing="0" cellpadding="0" width="60%" class="listContainer">
  <tr valign="top">
    <td width="5"><%= image_tag 'tb-1tp.gif', :width => 5, :height => 5 %></td>
    <td width="*"><%= image_tag 'spacer.gif', :width => 1, :height => 5 %></td>
    <td width="5"><%= image_tag 'tb-2tp.gif', :width => 5, :height => 5 %></td>
  </tr>
  <tr valign="top">
    <td width="5"><%= image_tag "spacer.gif", :width => 5, :height => 1 %></td>
    <td width="*">
      <table cellspacing="0" width="100%" cellpadding="5" class="formbox1">
        <tr>
          <td valign="top" class="formHead3">Details</td>
          <td align="right" class="formHead3">
            <%= button_to "Reply", {:action => "reply", :id => @mail.id, :user_id => current_user.id}, :class => "btn" %>
          </td>
        </tr>
        <tr>
          <td valign="top" class="formbox2" width="100">&nbsp;</td>
          <td valign="top">&nbsp;</td>
        </tr>
        <tr>
          <td class="formbox2"><span class="label">Sent: </span></td>
          <td><%= @message.created_at.to_s(:long_am_pm)%> by <%= @message.sender.name %></td>
        </tr>
        <tr>
          <td class="formbox2" valign="top"><span class="label">Recipient(s): </span></td>
          <td>
              <% @message.recipients.each do |recipient| %>
                <%= recipient.name %><br />
              <% end %>
          </td>
          <tr>
            <td class="formbox2"><span class="label">Subject: </span></td>
            <td><%= @message.subject %></td>
          </tr>
          <tr>
            <td valign="top" class="formbox2"><span class="label">Message: </span></td>
            <td><%= @message.body %></td>
          </tr>
        </tr>
      </table>
    </td>
  </tr>
  <tr valign="top">
    <td width="5"><%= image_tag 'tb-2.gif', :width => 5, :height => 5 %></td>
    <td width="*"><%= image_tag 'spacer.gif', :width => 1, :height => 5 %></td>
    <td width="5"><%= image_tag 'tb-1.gif', :width => 5, :height => 5 %></td>
  </tr>
</table>