qt history tab: fix "View Channel" in context menu

related: https://github.com/spesmilo/electrum/issues/7930

electrum/gui/qt/channels_list.py

@@ -233,7 +233,7 @@ class ChannelsList(MyTreeView):
         if not item:
             return
         channel_id = idx.sibling(idx.row(), self.Columns.NODE_ALIAS).data(ROLE_CHANNEL_ID)
-        chan = self.lnworker.channels.get(channel_id) or self.lnworker.channel_backups[channel_id]
+        chan = self.lnworker.get_channel_by_id(channel_id) or self.lnworker.channel_backups[channel_id]
         menu.addAction(_("Details..."), lambda: self.parent.show_channel_details(chan))
         menu.addSeparator()
         cc = self.add_copy_menu(menu, idx)

electrum/gui/qt/history_list.py

@@ -738,8 +738,8 @@ class HistoryList(MyTreeView, AcceptFileDragDrop):
             menu.addAction(_("Edit {}").format(label), lambda p=persistent: self.edit(QModelIndex(p)))
         menu.addAction(_("View Transaction"), lambda: self.show_transaction(tx_item, tx))
         channel_id = tx_item.get('channel_id')
-        if channel_id:
-            menu.addAction(_("View Channel"), lambda: self.parent.show_channel(bytes.fromhex(channel_id)))
+        if channel_id and self.wallet.lnworker and (chan := self.wallet.lnworker.get_channel_by_id(bytes.fromhex(channel_id))):
+            menu.addAction(_("View Channel"), lambda: self.parent.show_channel_details(chan))
         if is_unconfirmed and tx:
             if tx_details.can_bump:
                 menu.addAction(_("Increase fee"), lambda: self.parent.bump_fee_dialog(tx))

electrum/wallet.py

@@ -1117,6 +1117,8 @@ class Abstract_Wallet(ABC, Logger, EventListener):
                 tx_item['type'] = item['type']
                 ln_value = Decimal(item['amount_msat']) / 1000   # for channel open/close tx
                 tx_item['ln_value'] = Satoshis(ln_value)
+                if channel_id := item.get('channel_id'):
+                    tx_item['channel_id'] = channel_id
             else:
                 if item['type'] == 'swap':
                     # swap items do not have all the fields. We can skip skip them