When it is set to true, the value of the id property will be generated by the database automatically with its default type (e.g integer for MySQL and string for MongoDB).įor auto-migrate usage. The generated property indicates the ID will be automatically generated by the database. Id property settings that can be used for auto-migration / auto-update: Keyįor auto-migrate usage. Relational database schemas based on definitions of their models. In LoopBack, auto-migration helps the user create This is done by the typical Js/Tsc classes inheritance way in class MySuperModel extends MyBaseModel ) id : number If you’re a LB3 user, the following entries that are no longer available in LB4: Click to Expand Property To discover more about Model Decorator in LoopBack 4, please check This is particularly useful when dealing with old data that you wish to lose without a migration script. If you load or save a model instance with properties that are not predefined, LoopBack will ignore them.
This mode is useful to store free-form JSON data to a schema-less database such as MongoDB and supported by such databases only. false: The model is an open model and accepts all properties, including ones not predefined in the model.In addition, SQL databases only support this mode. If a model instance contains properties that are not predefined, LoopBack throws a ValidationError. It ensure the model accepts only predefined properties. true: Only properties defined in the model are accepted.Specifies whether the model accepts only predefined properties or not. In LB4, the default for this entry is set to be true. See Scope below for more details and examples. Scope enables you to set a scope that will apply to every query made by the model's repository. See Hidden properties section below for details. The properties can be hidden from response bodies Set it to true to prevent clients from setting the auto-generated ID value manually. Now: Supported Entries of Model Definition Property Please check the following section for available entries.Īs for entries in settings, LoopBack 4 supports these built-in entries for For example, properties and relations cannot be defined through the model decorator.
If you used LoopBack 3 before, the model decorator in LoopBack 4 is not exactly the same as what it is
0 kommentar(er)
