Add xref button to view equity payment in CORE

tailbone_corepos/views/members.py

@@ -138,6 +138,13 @@ class MemberEquityPaymentViewSupplement(ViewSupplement):
         model = self.model
         return [model.CoreMemberEquityPayment]
 
+    def get_xref_buttons(self, payment):
+        if payment.corepos_transaction_number and payment.corepos_card_number:
+            url = core_office_url(self.rattail_config)
+            if url:
+                url = f'{url}/reports/Equity/EquityReport.php?memNum={payment.corepos_card_number}'
+                return [{'url': url, 'text': "View in CORE Office"}]
+
 
 def includeme(config):
     MembershipTypeViewSupplement.defaults(config)