Bugfix - Magento 1: Warning: Invalid argument supplied for foreach() in app/code/core/Mage/Rule/Model/Condition/Abstract.php on line 246 Print

This error is thrown when editing coupons (where SKU as one of the conditions) in Promotions > Shopping Cart Price Rules. It is a bug in Magento 1.5.1.0 and is fixed in Magento 1.6.2.0.

Warning: Invalid argument supplied for foreach()  in app/code/core/Mage/Rule/Model/Condition/Abstract.php on line 246

To fix this bug, do the following:

1. Create a local override for the file by copying to app/code/local/Mage/Rule/Model/Condition/Abstract.php on line 246 (since we NEVER mod the core!)

2. Comment out the entire getValueSelectOptions() function at line 246 and replace with the following:

public function getValueSelectOptions()
 {
     $valueOption = $opt = array();
     if ($this->hasValueOption()) {
         $valueOption = (array) $this->getValueOption();
     }
     foreach ($valueOption as $k => $v) {
         $opt[] = array('value' => $k, 'label' => $v);
     }
     return $opt;
  }

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