[Newbies] sorting by key1 inside of key2
joseph.alotta at gmail.com
Thu Jul 7 02:58:30 UTC 2016
I have a collection of Transaction objects. They have instance variables of category and payee.
A category might be “Office Expense” and a payee might be “Costco” or “Amazon”.
I want to sort by categories and then payees.
Office Expense, Amazon…..
Office Expense, Costco
Here is some of my code:
sorted := trans asSortedCollection: [:a :b | (a category) < (b category)].
sorted do: [ :tr | | cat pay |
cat := tr category.
pay := tr payee.
stream nextPutAll: (tr myPrintFormat2).
How do I make the sort block sort on both keys?
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