Custom properties UI

[chapmanjacobd]

should be able to close #368

now you can have multiple Rating-style columns too!

needs testing! @GarbaJohnAshifa (the UI to add new fields is in the Admin console)

[holta]

cc @tim-moody

[deldesir]

I see the manage property definitions.

I see custom properties view

Here is how "Test Rating" displayed after creating it and using value 5

When I create a comment property it overwrites the previous property added. Not sure I understand this, its usefulness.

However this feature does add the custom properties in sidebar where you can click on a comment. But this leads to an internal server error:
2:1 Failed to load resource: the server responded with a status of 500 (INTERNAL SERVER ERROR)

[chapmanjacobd]

hmm that's interesting 🤔

I'll try making a patch

[chapmanjacobd]

custom rating properties were being saved/computed as strings, so that broke some things... you might need to create a new database or try deleting the custom column before trying again

[deldesir]

I'm looking for a better way to test this. Now internal server error kicks in on clicking "Edit metadata". https://lrn2.org/live/admin/book/1118