Add tests covering typical replication scenarios that happen
in the setup where multiple clients are synchronizing changes
against a single server (database).
Rework the Change model to merge changes made within the same
Checkpoint.
Rework `replicate()` to run multiple iteration until there were no
changes replicated. This ensures that the target model is left in
a clean state with no pending changes associated with the latest
(current) checkpoint.
* Replace deprecated hooks with Operation hooks (Miroslav Bajtoš)
* test: don't warn about running deprecated paths (Miroslav Bajtoš)
* karma conf: prevent timeouts on Travis CI (Miroslav Bajtoš)
* Pass options from User.login to createAccessToken (Raymond Feng)
* Config option to disable legacy explorer routes Setting legacyExplorer to false in the loopback config will disable the routes /routes and /models made available in loopback.rest. The deprecate module has been added to the project with a reference added for the legacyExplorer option as it is no longer required by loopback-explorer. Tests added to validate functionality of disabled and enabled legacy explorer routes. (Ron Edgecomb)
* test: setup GUID for all models tracking changes (Miroslav Bajtoš)
* Change tracking requires a string id set to GUID (Miroslav Bajtoš)
Extend `PersistedModel.replicate` to pass the newly created checkpoints
as the third callback argument.
The typical usage of these values is to pass them as the `since`
argument of the next `replicate()` call.
global.since = -1;
function sync(cb) {
LocalModel.replicate(
since,
RemoteModel,
function(err, conflicts, cps)
if (err) return cb(err);
if (!conflicts.length) {
since = cps;
return cb();
}
// resolve conflicts and try again
});
}
Before this change, in the case of a one-way replication, the remote
checkpoint was never updated, thus the "diff" step had to check
all changes made through the whole history.
This commit fixes the problem by creating a new remote checkpoint
at the same time when a local checkpoint is created.
It is important to create the new checkpoint before the replication is
started to prevent a race condition where a remote change can end up
being associated with an already replicated checkpoint.
Rework the "replicate()" to create a new source checkpoint as the first
step, so that any changes made in parallel will be associated with
the next checkpoint.
Before this commit, there was a race condition where a change might
end up being associated with the already-replicated checkpoint and thus
not picked up by the next replication run.
Modify `PersistedModel.replicate` to allow consumers to provide
different "since" values to be used for the local and remote changes.
Make the "since" filters consistent and include the "since" value
in the range via `gte`. Before this commit, the local query used
`gt` and the remote query used `gte`.
Setting legacyExplorer to false in the loopback config will disable
the routes /routes and /models made available in loopback.rest.
The deprecate module has been added to the project with a reference
added for the legacyExplorer option as it is no longer required by
loopback-explorer. Tests added to validate functionality of disabled
and enabled legacy explorer routes.
Fix all test models that are tracking changes so that they have
a generated unique string id.
Make model names unique where possible to prevent tests reusing
the same model which causes unintented side effects.
Esco Obong
crandmck
Raymond Feng
Raymond Feng
Benjamin Boudreau
Miroslav Bajtoš
Miroslav Bajtoš
ulion
Simon Ho
Simon Ho
Jason Sturges
Ron Edgecomb