when deleting a slice, do not remove corresponding leases

diff --git a/PLC/Slices.py b/PLC/Slices.py
index f27e5d0..276754c 100644 (file)
--- a/PLC/Slices.py
+++ b/PLC/Slices.py
@@ -254,7 +254,9 @@ class Slice(Row):
         assert 'slice_id' in self
 
         # Clean up miscellaneous join tables
-        for table in self.join_tables:
+        # however, we want to preserve leases for accounting purposes
+        to_delete = [table for table in self.join_tables if table != 'leases']
+        for table in to_delete:
             self.api.db.do(
                 f"DELETE FROM {table} WHERE slice_id = {self['slice_id']}")