Attempting to Insert File into DB But MYSQL "Goes away"

Rails
1

I am trying to upload a file to the DB but I am apparently unable to do
so for the following reason :

ActiveRecord::StatementInvalid in StoragesController#create

Mysql::Error: MySQL server has gone away: INSERT INTO storages
(content_type, name, updated_at, created_at, data)
VALUES(‘application/pdf’, ‘Err’, ‘2008-05-29 01:39:35’, ‘2008-05-29
01:39:35’, x’255044462d312e340a25c7ec8fa20a352030206f626a0a…

If I try to upload a file like a pdf or word or excel document it does
not upload. I do get to upload small text files.

This is my view :

<%= error_messages_for :storage %>

<%= form_tag ({:action=>‘create’}, :multipart=>true) %>

Name
<%= text_field 'storage' ,'name' %>

File
<%= file_field 'storage' ,'data' %> 
<%= submit_tag "Create" %>
<%= form_tag %>

This is my controller

def create
@storage = Storage.new(params[:storage])

logger.debug(">>> storage #{@storage.name}")
    logger.debug(">>> storage #{@storage.data.content_type.chomp}")
@storage.content_type  = @storage.data.content_type.chomp
@storage.data = @storage.data.read
respond_to do |format|
  if @storage.save
    flash[:notice] = 'Storage was successfully created.'
    format.html { redirect_to(@storage) }
    format.xml  { render :xml => @storage, :status => :created,

:location => @storage }
else
format.html { render :action => “new” }
format.xml { render :xml => @storage.errors, :status =>
:unprocessable_entity }
end
end
end

Do tell me if I am doing anything wrong please.