If the structure of your desired output requires two data structures, you create them.

For me that's not a good reason for moving program logic into the template.

If you're not convinced, think of what happens when you chose to add more views. There are plenty of possible output formats, like html, xml, pdf, json, yaml, plain text, ... - would you really want to duplicate code for all of those templates?

In reply to Re^5: Output should have multiple segments by moritz
in thread Output should have multiple segments by John M. Dlugosz

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