Add a new hidden property `__parent` that's automatically set on all
instances of embedded models.
For backwards compatibility, this feature is not enabled by default.
You can turn it on by adding the following line to `server/server.js`
file:
app.registry.modelBuilder.settings.parentRef = true;
* updateOnly, forceId changes
* support getUpdateOnlyProperties
* fixup! fix updateOrCreate in forceId mode
The contract of `updateOrCreate` is expecting a full object instance
to be passed to the callback.
The current implementation was creating an empty instance and
calling updateAttributes under the hood. As a result, the callback
was called with the attributes being updated only.
In order to preserve existing behaviour, we have to always build
a full initial instance by calling `findById`.
See the following discussion for more context:
https://github.com/strongloop/loopback-datasource-juggler/issues/966
* fixup! fix tests of upsert validation
* move forceId to model-builder
* remove TODO comment
* revert refactoring and test fixes
* Remove duplicate test
* change testcase names
* change to ModeClass.settingse
* forceId setup from datasource to model-builder
* fix inheritance of auto-generated forceId
* Fixed failing tests for auto change
* fixed a comment
The PR superseeds the existing deepMerge algorithm used to merge
settings of parent and child models with a new algorithm that allows
to specify the way each setting is merged or mixed-in.
This configuration of this algorithm uses a merge policy specification.
The `getMergePolicy()` helper of BaseModelClass can be used to ease
model merge configuration.
Next is presented the expected merge behaviour for each option.
NOTE: This applies to top-level settings properties
- Any
- `{replace: true}` (default): child replaces the value from parent
- assignin `null` on child setting deletes the inherited setting
- Arrays
- `{replace: false}`: unique elements of parent and child cumulate
- `{rank: true}` adds the model inheritance rank to array
elements of type Object {} as internal property `__rank`
- Object {}:
- `{replace: false}`: deep merges parent and child objects
- `{patch: true}`: child replaces inner properties from parent
The recommended merge policy is returned by getMergePolicy()
when calling the method with option `{configureModelMerge: true}`.
The legacy built-in merge policy is returned by `getMergePolicy()`
when avoiding option `configureModelMerge`.
NOTE: it also delivers ACLs ranking in addition to the legacy
behaviour as well as fixes for settings `description` and `relations`
`getMergePolicy()` can be customized using model's setting
`configureModelMerge` as follows:
```
{
// ..
options: {
configureModelMerge: {
// merge options
}
}
// ..
}
```
`getMergePolicy()` method can also be extended programmatically as
follows:
```
myModel.getMergePolicy = function(options) {
const origin = myModel.base.getMergePolicy(options);
return Object.assign({}, origin, {
// new/overriding options
});
};
```
Creates a new applyDefaultValues option on the Model constructor
defaulting to true, the current behaviour.
Updates the dao module to pass `{ applyDefaultValues: false }` to the
Model constructor during the updateOrCreate method when we assume an
update is happening.
When the setting "persistUndefinedAsNull" is true,
the model will use `null` instead of `undefined` in
all property values.
- Known optional model properties are set to `null` when no value
was provided.
- When setting model properties, `undefined` is always converted
to `null`. This applies to both known (model-defined) properties
and additional (custom, dynamic) properties.
- The instance method `toObject()` converts `undefined` to `null` too.
Because `toJSON()` calls `toObject()` under the hood, the change
applies to `toJSON()` too.
The property allows developers to specify that the default value
should be retrieved via a named function.
Only two built-in functions are supported at the moment:
"guid", "uuid" - generate a new GUID/UUID
"now" - use the current date and time
Support for custom (user-provided) functions is not implemented yet.
Support both promise and callback styles in
ModelBaseClass.notifyObserversOf.
When there is no callback supplied, the method returns a promise that
is resolved (or rejected) with the result.
Dimitris Xalatsis
Hage Yaapa
Miroslav Bajtoš
Agnes Lin
Raymond Feng
Zak Barbuto
Rashmi Hunt
ebarault
Loay
Thaer Abbas
Sakib Hasan
Raymond Feng
Tim De Pauw
David Cheung
Amir Jafarian
gunjpan
Miroslav Bajtoš
Ryan Graham
Jue Hou
Bram Borggreve
Bryan Clark
Clark Wang
Raymond Feng
Miroslav Bajtoš
Miroslav Bajtoš
0angelic0
Pradnya Baviskar
Christian Enevoldsen