deleting an account with a linked transaction causes problem for sibling

[Michael Rooney]

In the worst case this means that when restarting you cannot view transactions for an account with an orphaned sibling or view the summary for that account or All accounts.

  File "/home/michael/Code/wxbanker-0.6/wxbanker/accountlistctrl.py", line 223, in SelectVisibleItem
    self.SelectItem(i)
  File "/home/michael/Code/wxbanker-0.6/wxbanker/accountlistctrl.py", line 210, in SelectItem
    Publisher().sendMessage("view.account changed", account)
  File "/usr/lib64/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/lib/pubsub.py", line 811, in sendMessage
    self.__topicTree.sendMessage(aTopic, message, onTopicNeverCreated)
  File "/usr/lib64/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/lib/pubsub.py", line 498, in sendMessage
    deliveryCount += node.sendMessage(message)
  File "/usr/lib64/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/lib/pubsub.py", line 336, in sendMessage
    listener(message)
  File "/home/michael/Code/wxbanker-0.6/wxbanker/managetab.py", line 81, in onChangeAccount
    self.transactionPanel.setAccount(account)
  File "/home/michael/Code/wxbanker-0.6/wxbanker/managetab.py", line 110, in setAccount
    self.transactionCtrl.setAccount(*args, **kwargs)
  File "/home/michael/Code/wxbanker-0.6/wxbanker/transactionolv.py", line 148, in setAccount
    transactions = account.Transactions
  File "/home/michael/Code/wxbanker-0.6/wxbanker/bankobjects/account.py", line 93, in GetTransactions
    self._Transactions = self.Store.getTransactionsFrom(self)
  File "/home/michael/Code/wxbanker-0.6/wxbanker/persistentstore.py", line 368, in getTransactionsFrom
    t = self.result2transaction(result, account, recurringCache=recurringCache)
  File "/home/michael/Code/wxbanker-0.6/wxbanker/persistentstore.py", line 349, in result2transaction
    link, linkAccount = self.getTransactionAndParentById(linkId, parentObj, linked=t)
  File "/home/michael/Code/wxbanker-0.6/wxbanker/persistentstore.py", line 378, in getTransactionAndParentById
    if account.ID == result[1]:
TypeError: 'NoneType' object is unsubscriptable

[Michael Rooney (mrooney)]

I fixed this for new deletions, but it would be ideal to unbreak any databases that have had this problem.

[Michael Rooney (mrooney)]

Revision 516 will detect this and remove the link for existing "orphaned" links.