Documentation / @warp-drive/core / reactive / CAUTION_MEGA_DANGER_ZONE_Extension

Interface: CAUTION_MEGA_DANGER_ZONE_Extension

Defined in: warp-drive-packages/core/src/reactive/-private/schema.ts:84

Extensions allow providing non-schema driven behaviors to ReactiveResources, ReactiveArrays, and ReactiveObjects.

This should only be used for temporary migration purposes to the new schema system when migrating from either Model or ModelFragments.

Properties

features

features: 
  | Function
| Record<string | symbol, unknown>;

Defined in: warp-drive-packages/core/src/reactive/-private/schema.ts:174

An object with iterable keys whose values are the getters or methods to expose on the object or array.

or

A constructable such as a Function or Class whose prototype will be iterated with getOwnPropertyNames.

Examples:

An Object with methods

store.schema.CAUTION_MEGA_DANGER_ZONE_registerExtension({
   kind: 'object',
   name: 'do-thing-1',
   features: {
     doThingOne(this: { street: string }) {
       return `do-thing-1:${this.street}`;
     },
     doThingTwo(this: { street: string }) {
       return `do-thing-1:${this.street}`;
     },
   },
 });

A class with getters, methods and decorated fields

class Features {
  sayHello() {
    return 'hello!';
  }

  @tracked trackedField = 'initial tracked value';

  get realName() {
    const self = this as unknown as { name: string };
    return self.name;
  }
  set realName(v: string) {
    const self = this as unknown as { name: string };
    self.name = v;
  }

  get greeting() {
    const self = this as unknown as { name: string };
    return `hello ${self.name}!`;
  }

  @computed('name')
  get salutation() {
    const self = this as unknown as { name: string };
    return `salutations ${self.name}!`;
  }

  @cached
  get helloThere() {
    const self = this as unknown as { name: string };
    return `Well Hello There ${self.name}!`;
  }
}

// non-decorated fields dont appear on class prototypes as they are instance only
// @ts-expect-error
Features.prototype.untrackedField = 'initial untracked value';

store.schema.CAUTION_MEGA_DANGER_ZONE_registerExtension({
  kind: 'object',
  name: 'my-ext',
  features: Features,
});

---

kind

kind: "object" | "array";

Defined in: warp-drive-packages/core/src/reactive/-private/schema.ts:89

Whether this extension extends the behaviors of objects (both ReactiveObjects and ReactiveResources) or of arrays.

---

name

name: string;

Defined in: warp-drive-packages/core/src/reactive/-private/schema.ts:95

The name of the extension, to be used when specifying either objectExtensions or arrayExtensions on the field, ResourceSchema or ObjectSchema