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from johnw - here's the specific excerpt. Basically, mifos is hanging onto old, unused functionality that was part of printing collection sheets... Van thought GK rolled their own because of performance probs... I'm just offering to help put the facility back in mifos if its worth it (and delete the unused stuff).
"That's all nice to know but as people have pointed out this (collection sheet reporting) functionality isn't currently used and I'm pretty sure the test doesnt quite work either (e.g. it tries to offset schedules by a number of days - it misses the "group" customer schedule and I can't see why that would be intentional.)
Van made this reply to Keith W a while ago http://groups.google.com.au/group/mifosdeveloper/msg/c2675c488be96004.
The speed aspect mentioned should be okay now. If there is still a need to ship functionality to print collecion sheet reports I'd be happy to look at it with anyone who can hold up the functional requirements end. I'd even be happy to see how GK currently do it and see how we could bring it or something like it back into mifos. "