daniel created this task.
daniel claimed this task.
daniel added subscribers: daniel, Lydia_Pintscher, Aklapper, JanZerebecki.
daniel added projects: Wikibase-DataModel-Serialization,
MediaWiki-extensions-WikibaseRepository, Wikidata.
TASK DESCRIPTION
In {T112547} it was decided that we should represent derived values in the
data model in order to include them in the JSON output. Several options were
identified for doing so:
a. Use subclassing to created "extended" versions of the relevant classes in
the model. This is already doen for some things (Terms with language fallback,
for instance), but was identified as the least desirable option in the
previsous RFC discussion.
b. Create a completely separate model hierarchy, wrapping the base model, and
attaching additional information. This was seen as clean but tedious in the
previous RFC discussion.
c. Create specialized models for each use case, independent of the base
model, with the appropriate transformation services. This was seen as rather
hard to maintain and tricky to document and communicate to third parties.
d. Define interfaces for the core model, but support additional (derived)
data in the implementation classes (or have separate interfaces and/or
implementations that support additional information). This would break all code
that currently instantiates model objects directly.
TASK DETAIL
https://phabricator.wikimedia.org/T112550
EMAIL PREFERENCES
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To: daniel
Cc: JanZerebecki, Aklapper, Lydia_Pintscher, daniel, Wikidata-bugs, aude
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