Modify `Change.rectify` to look up the current checkpoint only when
there was actually some change made.
This should improve the performance of `rectifyAll` when called from a
regular timer and there were no changes made since the last call.
Before this commit, `rectifyAll` would perform N calls of
`Checkpoint.current` where N is the number of model instances. With
this commit in place, no call is made.
Modify `Change.rectify()` to not make any changes to the Change instance
(most notably to not modify the `checkpoint` field) when the tracked
model instance was not changed.
This should improve the performance of change replication as it reduces
the number of unnecessary replications.
For example, before this commit, every run of `rectifyAll` would
trigger a full sync of all clients, because all change instances would
be moved to the current checkpoint.
Fix `Application.resetKeys()` to reset instance id only if it is not
already set. This fixes a bug where each call of resetKeys created
a new instance.
Change the type of the "include" argument to "string array".
The type used to be "string" before and thus requests sending multiple
include items were technically incorrect.
Add end-to-end unit-tests verifying enforcement of access control during
conflict resolution.
Implement two facade methods providing REST API for Change methods used
by conflict resolution:
PersistedModel.findLastChange
GET /api/{model.pluralName}/{id}/changes/last
PersistedModel.updateLastChange
PUT /api/{model.pluralName}/{id}/changes/last
By providing these two methods on PersistedModel, replication users
don't have to expose the Change model via the REST API. What's even
more important, these two methods use the same set of ACL rules
as other (regular) PersistedModel methods.
Rework `Conflict.prototype.changes()` and `Conflict.prototype.resolve()`
to use these new facade methods.
Implement a new method `Conflict.prototype.swapParties()` that provides
better API for the situation when a conflict detected in Remote->Local
replication should be resolved locally (i.e. in the replication target).
1) Add integration tests running change replication over REST to verify
that access control at model level is correctly enforced.
2) Implement a new access type "REPLICATE" that allows principals
to create new checkpoints, even though they don't have full WRITE
access to the model. Together with the "READ" permission, these
two types allow principals to replicate (pull) changes from the server.
Note that anybody having "WRITE" access type is automatically
granted "REPLICATE" type too.
3) Add a new model option "enableRemoteReplication" that exposes
replication methods via strong remoting, but does not configure
change rectification. This option should be used the clients
when setting up Remote models attached to the server via the remoting
connector.
- `loopback.registry` is now a true global registry
- `app.registry` is unique per app object
- `Model.registry` is set when a Model is created using any registry method
- `loopback.localRegistry` and `loopback({localRegistry: true})` when set to `true` this will create a `Registry` per `Application`. It defaults to `false`.
Deprecate `Change.handleError`, it was used inconsistenly for a subset
of possible errors only. Rework all `Change` methods to always report
all errors to the caller via the callback.
Rework `PersistedModel` to report change-tracking errors via the
existing method `PersistedModel.handleChangeError`. This method
can be customized on a per-model basis to provide different error
handling.
The default implementation emits `error` event on the model class,
users can attach an event listener that can provide a custom error
handler.
NOTE: Unhandled `error` events crash the application by default.
Miroslav Bajtoš
juehou
Candy
Miroslav Bajtoš
Amir-61
Samuel Gaus
Amir Jafarian
David Cheung
Richard Pringle
Simo Moujami
wusuopu
Felipe Oliveira Carvalho
Farid Nouri Neshat
Raymond Feng
Raymond Feng
Pradnya Baviskar
Miroslav Bajtoš
Berkeley Martinez
Richard Walker
Owen Brotherwood
Alexandru Savin
Miroslav Bajtoš
Edmond Lau
Ritchie Martori
Esco Obong