SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '1922-1' for key 'IDX_STOCK_PRODUCT'

Question

While creating product, at the last step after retrieving for a time, Magento gives following error-:

SQLSTATE[23000]: Integrity constraint violation:

Answer 1

Many time this error is caused when you update a product in your custom module's observer as shown below.

class [NAMESPACE]_[MODULE NAME]_Model_Observer
{
    /**
     * Flag to stop observer executing more than once
     *
     * @var static bool
     */
    static protected $_singletonFlag = false;

    public function saveProductData(Varien_Event_Observer $observer)
    {
        if (!self::$_singletonFlag) {
            self::$_singletonFlag = true;

            $product = $observer->getEvent()->getProduct();
             //do stuff to the $product object
            // $product->save();  // commenting out this line prevents the error
            $product->getResource()->save($product);
    }
} 

Hence whenever you save your product after updating some properties in your module's observer use $product->getResource()->save($product) instead of $product->save()

Answer 2

Try to change the FK to INDEX instead of UNIQUE.

Answer 3

I just added an @ symbol and it started working. Like this: @$product->save();

Answer 4

You might have forgotten to auto increment the id field.

Answer 5

your column value is already in database table it means your table column is Unique you should change your value and try again

Answer 6

I also encountered this problem. I found after changing the table storage engine from MyISAM to Innodb, problem solved .