How to get values from a nested multi-link table?

Anvil Q&A
8

Careful: using an empty list (or any mutable) as default value in the function argument could lead to sneaky bugs.

Try to google python empty list as argument and see the details.

The right way is to use None and then create an empty list inside the function:

def make_links(app_table, linked_rows=None):
  linked_rows = linked_rows or []
  table_row = app_tables.get(app_table).add_row(linked_rows=linked_rows)
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