URI: 
       tqt history list: only offer "View Invoice" if still have invoice - electrum - Electrum Bitcoin wallet
  HTML git clone https://git.parazyd.org/electrum
   DIR Log
   DIR Files
   DIR Refs
   DIR Submodules
       ---
   DIR commit 35dad3c10ef7e2de3aa86cdc467ac251db38f524
   DIR parent 9b3f165212c2f63d3a2e13b6d16b008e350d044a
  HTML Author: SomberNight <somber.night@protonmail.com>
       Date:   Wed,  8 Jul 2020 01:19:23 +0200
       
       qt history list: only offer "View Invoice" if still have invoice
       
       fixes: #6343
       
       Diffstat:
         M electrum/gui/qt/history_list.py     |       5 +++--
         M electrum/wallet.py                  |       8 +++++---
       
       2 files changed, 8 insertions(+), 5 deletions(-)
       ---
   DIR diff --git a/electrum/gui/qt/history_list.py b/electrum/gui/qt/history_list.py
       t@@ -675,7 +675,7 @@ class HistoryList(MyTreeView, AcceptFileDragDrop):
                tx_URL = block_explorer_URL(self.config, 'tx', tx_hash)
                tx_details = self.wallet.get_tx_info(tx)
                is_unconfirmed = tx_details.tx_mined_status.height <= 0
       -        invoice_keys = self.wallet._get_relevant_invoice_keys_for_tx(tx)
       +        invoice_keys = self.wallet.get_relevant_invoice_keys_for_tx(tx)
                menu = QMenu()
                if tx_details.can_remove:
                    menu.addAction(_("Remove"), lambda: self.remove_local_tx(tx_hash))
       t@@ -701,7 +701,8 @@ class HistoryList(MyTreeView, AcceptFileDragDrop):
                            menu.addAction(_("Child pays for parent"), lambda: self.parent.cpfp(tx, child_tx))
                for key in invoice_keys:
                    invoice = self.parent.wallet.get_invoice(key)
       -            menu.addAction(_("View invoice"), lambda: self.parent.show_onchain_invoice(invoice))
       +            if invoice:
       +                menu.addAction(_("View invoice"), lambda: self.parent.show_onchain_invoice(invoice))
                if tx_URL:
                    menu.addAction(_("View on block explorer"), lambda: webopen(tx_URL))
                menu.exec_(self.viewport().mapToGlobal(position))
   DIR diff --git a/electrum/wallet.py b/electrum/wallet.py
       t@@ -764,11 +764,13 @@ class Abstract_Wallet(AddressSynchronizer, ABC):
            def export_invoices(self, path):
                write_json_file(path, list(self.invoices.values()))
        
       -    def _get_relevant_invoice_keys_for_tx(self, tx: Transaction) -> Set[str]:
       +    def get_relevant_invoice_keys_for_tx(self, tx: Transaction) -> Set[str]:
                relevant_invoice_keys = set()
                for txout in tx.outputs():
                    for invoice_key in self._invoices_from_scriptpubkey_map.get(txout.scriptpubkey, set()):
       -                relevant_invoice_keys.add(invoice_key)
       +                # note: the invoice might have been deleted since, so check now:
       +                if invoice_key in self.invoices:
       +                    relevant_invoice_keys.add(invoice_key)
                return relevant_invoice_keys
        
            def _prepare_onchain_invoice_paid_detection(self):
       t@@ -809,7 +811,7 @@ class Abstract_Wallet(AddressSynchronizer, ABC):
                tx_hash = tx.txid()
                with self.transaction_lock:
                    labels = []
       -            for invoice_key in self._get_relevant_invoice_keys_for_tx(tx):
       +            for invoice_key in self.get_relevant_invoice_keys_for_tx(tx):
                        invoice = self.invoices.get(invoice_key)
                        if invoice is None: continue
                        assert isinstance(invoice, OnchainInvoice)