exposed multiple files selection for upload

set the multiple flag to true and modified controller to read the upload
data correctly. This change will allow user to select more than one file
when they use 'Add Files' button.

Author: Nishat

app/controllers/uploads_controller.rb

@@ -40,8 +40,12 @@ def edit
   # POST /uploads
   # POST /uploads.json
   def create
-    @upload = Upload.new(params[:upload])
+	# because of multiple flag set to true,
+	# form post is sending data in slightly nested format
+	# lets bring this to the front
+    upload_data = { "upload" => params[:upload]["upload"][0] }
 
+    @upload = Upload.new(upload)
     respond_to do |format|
       if @upload.save
         format.html {

app/views/uploads/index.html.erb

@@ -8,7 +8,8 @@
         <span class="btn btn-success fileinput-button">
           <i class="icon-plus icon-white"></i>
           <span>Add files...</span>
-          <%= f.file_field :upload %>
+          <!-- because we wish to select more than one files -->
+          <%= f.file_field :upload, :multiple=>true %>
         </span>
         <button type="submit" class="btn btn-primary start">
           <i class="icon-upload icon-white"></i>