How to Override frontend Order Controller in Magento

Here, I am overriding the Order frontend Controller without using the [rewrite] node.
This is the simple and better way to override the any controller (frontend / admin) using [routers] node.

I am taking the example of frontend Order controller, please look at the below steps:
Note : 1 ) Replace all [ with < and ] with >
           2) Please follows the case sensitiveness.
1) In config.xml file do the following changes:
[frontend]
   [routers]
      [sales]
        [args]
          [modules]
             [namespace before="Mage_Sales"] Namespace_Sales   [/namespace]
          [/modules]
       [/args]
    [/sales]
  [/routers]
[/frontend]

2) In Namespace/Sales/controllers/OrderController.php file

require_once('Mage/Sales/controllers/OrderController.php')
Class Namespace_Sales_OrderController extends Mage_Sales_OrderController
{
     public function reorderAction()
     {
           Write your code or logic here.......:)
     }
}


----- --  done --------

Go Live Pre-requitised Steps (Before Live)

Before Go Live it is important to check the below things:

1) Empty / Truncate the following database tables.
+ adminnotification_inbox
+ catalogsearch_query
+ Change Login Credentials
+ eav_entity_store
+ log_url
+ log_url_info
+ log_visitor
+ log_visitor_info
+ sales_flat_quote
+ sales_order
+ newsletter_subscription
+ log_quote

2) Change base URL of website for secure and non secure in phpmyadmin.

3) To change admin panel credentials Sytem->MyAccount->Account Info->save.

4) To clear customer list Customer->Manage Customer ->Select All-> Delete All Customers.

5) To enable webserver Rewrite System->Configuration->Web->SEO->Yes in WebServer Rewrite.

6) To Enable store email addresses System->Configuration->store Email Addresses

7) To enable sales emails:  System->Configuration->Sales Email

At last clear the all Cache. ...

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