Posts made by Visvanath Ratnaweera

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Hi

First of all thanks for pointing out that great resource: https://www.wiley.com/en-us/Discrete+Mathematics+with+Student+Solutions+Manual+Set-p-9780470086421. My initial reaction was, "What an expensive book!" Then looking at the supporting resources http://webspace.ship.edu/deensley/DiscreteMath/ it is an encyclopedic work, I must say!

@all, You need Flash to see the applications, under the original link http://webspace.ship.edu/deensley/DiscreteMath/flash/ch4/sec4_4/control_44.html, for example.

I won't bet on writing those applications in PHP. I see better chances in following the h5p line: https://h5p.org/moodle and https://moodle.org/plugins/mod_hvp. But don't ask me, how to do it! :-\

Off-topic: So you are faced with the problem of a paperless classroom. The exercises in the book are meant of paper - just watching the animations is nothing. Just estimate the cost of writing blocks and compare it to the cost of development of the all software tools needed in their place.
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"On topic": I know it is too late for the original poster (https://moodle.org/mod/forum/discuss.php?d=353276&parent=1472847) but I am surprised that nobody has suggested the LTS-route, -> 3.1 -> 3.5 - https://docs.moodle.org/dev/Releases#Version_support. (Well, Dan did, without mentioning LTS: https://moodle.org/mod/forum/discuss.php?d=353276#p1425425.)

Off-topc: Background of the utf8mb4 confusion: https://moodle.org/mod/forum/discuss.php?d=363207#p1464839
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Sorry, can't help with Windows. Somehow I expected the "virtual room" to be Unix/Linux and checked in. Hope a Windows administrator will come to the rescue. There are not many here, and I think there is exactly one who also understands Portuguese. Why don't you select one from the Moodle Docs?

Well, this "Creating default object from empty value" reminded me of a common problem when very old Moodle are run on newer PHP. But then Leon gave you the solution to that.