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I'm using commerce paypal to accept payment on a drupal website. i have configured the module as described in drupal commerce support website and created sandbox accounts both for buyer and seller. i created a test order and paid with paypal, the IPN is received successfully and it is verified according to report/dblogs with message:

IPN validated for Order 2 with ID 7DW624906V374562U.

But after this db log there's another one which is an error with message:

PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '' for key 'name': INSERT INTO {users} (uid, created, data) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2); Array ( [:db_insert_placeholder_0] => 13054 [:db_insert_placeholder_1] => 1396116964 [:db_insert_placeholder_2] => a:1:{s:7:"contact";i:1;} ) in drupal_write_record() (line 7194 of /home/findaper/public_html/includes/common.inc).

and type:

commerce_payment_transaction

So, the payment is validated, but there's this error, and the event "when order first paid in full" is not firing. i have no idea how to fix this. can anyone help me with this??

drupal and all modules are the latest version. [drupal7]

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Duplicate entry '' for key 'name': INSERT INTO {users} (uid, created, data)

This is incorrect code, since no name value defined for inserting, so user name is empty and name should be unique - you cann't insert second user with empty name.
Try find this code INSERT INTO {users} (uid, created, data) on your drupal files (modules), if no success, investigate your Rules for custom code.

  • Yup, the problem was a custom rule to change a field value for cart owner... thanks for your answer. – Pouya Mar 30 '14 at 8:38
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I encountered the same issue. I have a custom rule that add a role to a user after he has completed his payment. I used site:current-user instead of commerce-order:owner. site:current-user is not defined because PayPal is an anonymous user when the IPN is processed.

So you should use commerce-order:owner in your custom rules when accessing user.

Hope that can help someone ;-)

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