invoice-payment-gateway

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invoice-payment-gateway's Issues

AttributeError: 'NoneType' object has no attribute 'lines'

The following error happens, when

creating a sale
- using invoice method 'On order processed'
- using shipment method 'On order processed'
to be able to process the sale it is required to add a payment
when adding the payment via the 'Add payment' wizard on sale, it is possible to continue and process the sale successfully
but
when going to the related invoice and using 'Pay using transaction' , this basically tries ot do the same payment again, but supposedly doesn't find any lines to process (see below).

So probably this should be improved by

fixing pay_using_transaction to not fail on missing lines
doing the automatic reconcialiation of invoice and payment, when the payment was created before the invoice (which seems the usual workflow when this module is installed).

What do you think?

[Tue Mar 31 16:27:17 2015] ERROR:trytond.protocols.dispatcher:Exception calling wizard.account.invoice.pay_using_transaction.execute from 1@::1:36384/nereid_webshop34
Traceback (most recent call last):
  File "/home/mathiasb/.virtualenvs/nereid-webshop34/local/lib/python2.7/site-packages/trytond/protocols/dispatcher.py", line 161, in dispatch
    result = rpc.result(meth(*c_args, **c_kwargs))
  File "/home/mathiasb/.virtualenvs/nereid-webshop34/local/lib/python2.7/site-packages/trytond/wizard/wizard.py", line 249, in execute
    return wizard._execute(state_name)
  File "/home/mathiasb/.virtualenvs/nereid-webshop34/local/lib/python2.7/site-packages/trytond/wizard/wizard.py", line 280, in _execute
    result = self._execute(transition())
  File "/home/mathiasb/.virtualenvs/nereid-webshop34/local/lib/python2.7/site-packages/trytond/modules/invoice_payment_gateway/invoice.py", line 265, in transition_pay
    self.start.invoice.pay_using_transaction(transaction)
  File "/home/mathiasb/.virtualenvs/nereid-webshop34/local/lib/python2.7/site-packages/trytond/modules/invoice_payment_gateway/invoice.py", line 47, in pay_using_transaction
    for line in payment_transaction.move.lines:
AttributeError: 'NoneType' object has no attribute 'lines'