Add asset model and controller

app/controllers/admin/assets_controller.rb

@@ -0,0 +1,51 @@
+class Admin::AssetsController < ApplicationController
+
+  layout "admin"
+  
+  def show
+    @asset = Asset.find(params[:id])
+    send_data @asset.data.file.read, :filename => @asset.filename, 
+                                     :type => @asset.data.content_type, 
+                                     :disposition => 'inline' # or 'attachment'
+  end
+  
+  def index
+    @assets = Asset.find(:all)
+  end
+  
+  def edit
+    @asset = Asset.find(params[:id])
+  end
+  
+  def new
+    @asset = Asset.new
+  end
+  
+  def create  
+    @asset = Asset.new(params[:asset])
+    if @asset.save
+      redirect_to admin_assets_url
+    else
+      render :action => :new
+    end
+    
+  end
+  
+  def update
+    @asset = Asset.find(params[:id])
+    if @asset.update_attributes(params[:asset])
+      redirect_to admin_assets_url
+    else
+      render :action => :edit
+    end
+    
+  end
+    
+  def destroy
+    @asset = Asset.find(params[:id])
+    @asset.destroy
+    
+    redirect_to admin_assets_url
+  end
+  
+end

app/models/asset.rb

@@ -0,0 +1,21 @@
+class Asset
+
+  include MongoMapper::Document
+  include Grip::HasAttachment
+
+  key :filename, String, :required => true
+  key :description, String
+
+  has_grid_attachment :data, :required => true
+  
+  before_validation :setup_filename
+  
+  protected
+  
+  def setup_filename
+    if self.filename.blank? && self.data
+      self.filename = self.data.file_name
+    end
+  end
+  
+end

app/models/assets/asset_image.rb

@@ -0,0 +1,3 @@
+class AssetImage < Asset
+
+end

app/models/assets/asset_javascript.rb

@@ -0,0 +1,3 @@
+class AssetJavascript < Asset
+
+end

app/models/assets/asset_pdf.rb

@@ -0,0 +1,2 @@
+class AssetPdf < Asset
+end

app/models/assets/asset_stylesheet.rb

@@ -0,0 +1,3 @@
+class AssetStylesheet < Asset
+
+end

app/views/admin/assets/_form.html.erb

@@ -0,0 +1,16 @@
+<%= f.error_messages %>
+
+<p>
+<%= f.label :filename, "FileName" %>
+<%= f.text_field :filename, :class => 'text' %>
+</p>
+
+<p>
+<%= f.label :description, "Description" %>
+<%= f.text_field :description, :class => 'text' %>
+</p>
+
+<p>
+<%= f.label :data, "Data" %>
+<%= f.file_field :data %>
+</p>

app/views/admin/assets/edit.html.erb

@@ -0,0 +1,12 @@
+<h1>Editing assets</h1>
+
+<% form_for @asset, :url => admin_asset_path(@asset), :html => { :multipart => true } do |f| %>
+  <%= f.error_messages %>
+  
+  <%= render :partial => "form", :locals => { :f => f } %>
+  <p>
+    <%= f.submit 'Update' %>
+  </p>
+<% end %>
+
+<%= link_to 'Back', admin_assets_path %>

app/views/admin/assets/index.html.erb

@@ -0,0 +1,29 @@
+<h1>Listing assets</h1>
+
+<table>
+  <tr>
+      <th>檔案</th>
+      <th>描述</th>
+      <th>格式</th>
+      <th>原上傳檔名</th>
+      <th>檔案大小</th>
+      <th></th>
+      <th></th>
+  </tr>
+
+<% @assets.each do |asset| %>
+  <tr>
+    <td><%= link_to asset.filename, admin_asset_path(asset) %></td>
+    <td><%= asset.description %></td>
+    <td><%= asset.data.content_type %></td>
+    <td><%= asset.data.file_name %></td>
+    <td><%= number_to_human_size(asset.data.file_size) %></td>
+    <td><%= link_to t(:edit), edit_admin_asset_path(asset) %></td>
+    <td><%= link_to t(:delete), admin_asset_path(asset), :confirm => 'Are you sure?', :method => :delete %></td>
+  </tr>
+<% end %>
+</table>
+
+<br />
+
+<%= link_to t(:new_asset, :scope => :admin), new_admin_asset_path, :class => 'button positive' %>

app/views/admin/assets/new.html.erb

@@ -0,0 +1,11 @@
+<h1>New Asset</h1>
+
+<% form_for :asset, :url => admin_assets_path, :html => { :multipart => true } do |f| %>
+  <%= f.error_messages %>
+
+  <%= render :partial => "form", :locals => { :f => f } %>
+  
+  <p>
+    <%= f.submit 'Create' %>
+  </p>
+<% end %>

app/views/layouts/admin.html.erb

@@ -22,6 +22,7 @@
           <li><%= link_to t(:home, :scope => :admin), root_path %></li>
           <li><%= link_to t(:item, :scope => :admin), admin_items_path %></li>
           <li><%= link_to t(:layout, :scope => :admin), admin_layouts_path %></li>
+          <li><%= link_to t(:asset, :scope => :admin), admin_assets_path %></li>
           <li><%= link_to t(:announcement, :scope => :admin), panel_announcements_path( :entry_name => 'news' ) %></li>
      </ul>
   </div>