We provide an interface for the Scribunto extension (Lua modules) in
Wikibase for quite some time now. Our integration with Scribunto was
very basic initially and not future proof enough for things like
arbitrary access or very big items.
Due to that we at some point deprecated the old Lua function to access
entities mw.wikibase.getEntity in favor of
mw.wikibase.getEntityObject which is much more than just a plain Lua
table and allowed us to introduce various convenience functions and to
improve performance. We plan to extend on that in the near future to
make arbitrary access possible, especially from a performance point of
As that's not possible with the legacy mw.wikibase.getEntity function it
would be nice if you could replace all of your usages of that function
with the new function. Migrating shouldn't be hard, but there are two
breaking changes between the output format of the two functions which
you need to be aware of and potentially adopt your modules to.
First of all the old entity format, as obtained from
mw.wikibase.getEntity, includes all claims twice once with upper and
once with lower case keys (so both "P123" and "p123" are present as
keys). That has been removed in the new format in favor of just upper
case keys ("P123").
The other breaking change is that in the new entity format the Lua
tables are no longer numbered from 0 on, but from 1 on (which is the
native Lua table enumeration).
You can find a list of all Lua modules (potentially) using the old
function sorted by number of transclusions on