public function attributeLabels()
{
return array('product_option_value_id' => 'Product Option Value', 'product_option_id' => 'Product Option', 'product_id' => 'Product', 'option_id' => 'Option', 'option_value_id' => 'Option Value', 'quantity' => 'Quantity', 'subtract' => 'Subtract', 'price' => 'Price', 'price_prefix' => 'Price Prefix', 'points' => 'Points', 'points_prefix' => 'Points Prefix', 'weight' => 'Weight', 'weight_prefix' => 'Weight Prefix');
}