How to read closing, opening and available balances

[gmyrianthous]

I am struggling to find an example of how to infer closing, opening and available balances from a MT940.
As far as I can see, these details are included on transaction-level but in reality, I do have some documents with no transactions at all and thus I am looking into inferring the balances outside of the context of a "transaction".

Can someone help here? Is this possible?

Thanks!

[wolph]

I'm not entirely sure I understand the question to be honest. But I'll try to explain the working of the library a bit.

The scope decides whether a tag is part of the Tranasaction or Transactions (plural). If it's a transaction scoped item it will be different for each transaction, if it's a transactions scoped item it will stay the same between transactions.

mt940/mt940/tags.py

Line 102 in 4ea8674

scope = models.Transactions

If needed, you can override this attribute: some_tag.scope = models.Transaction

[gmyrianthous]

Thanks for your reply @wolph.

What if a MT940 doesn't have any transactions, but just statement/account/balance information?

Here's an example document (I have kept only the tags in the sequence they show up)

:20:
:25:
:28:
:60F:
:62F:
:64:
-

[aGitForEveryone]

If your data does not contain any transactions, then no transactions will be created during parsing. New transactions are only created when encountering tag :61: (which your data does not have). So if you set the scope to models.Transaction, the data cannot be recorded as there is not Transaction object to hold the data.

You could leave the scope to the default (models.Transactions) and then the Transactions object that the parse() function returns will contain the last value found in the balance tags. Which will work if you only have 1 block. But if you have more blocks, you will only keep the last block info.

[wolph]

Reopening — still relevant. Statements with no :61: transactions (balance-only) currently have nowhere to attach balance data. Tracking for a future opt-in; not addressed in #124.