Magento设置基础货币 - geoip查找

Question

I'm trying to set the currency based on IP lookup.

So far I've found only this php snippet for setting the currency http://ravikumar85.blogspot.ie/2010/02/magento-set-base-currency-through-code.html

but if I put this code in index.php just before Mage::run()

if($geolookup == 'UK') {
    Mage::app()->getStore()->setCurrentCurrencyCode('GBP');
}

I get this error

There has been an error processing your request
Mage registry key "controller" already exists

Any idea?
Thanks

Answer 1

I'm not sure the reason you wish to have the custom modification. Anyway, modify the app/code/core/Mage/Core/Model/Store.php by adding the below code will work you the solution.

public function getCurrentCurrencyCode()
{
  if($geolookup == 'UK') {
      $this->_getSession()->setCurrencyCode('GBP');
  }

  ......
 }