Let’s say we want to display the amount of an account of the previous year in an account template.
In an account template we have the so called current_account drop, where you can get certain data from it (think of the company-drop where you can get data like name, vat_identifier, … ).
If we want to use the account number, we can use this code:
{{ current_account.number }}
To have the value, we’ll use this code:
{{ current_account.value }}
How can we get to the value of the same account for previous period?
We know we can get all accounts by this code:
{{ period.accounts }}
which give the end result of all accounts available in the current period.
If we want that same result, but for the previous year, we can add the attribute `minus_1y’ to the period-drop:
{{ period.minus_1y.accounts }}
Use minus_2p for instance to go 2 periods back.
All we need to do now, is to filter that “drop” of accounts on the current account, and that can be done by the range-tag, like this and our current_account.number :
{{ period.minus_1y.accounts | range:current_account.number }}