Is there a way to extract raw data from a JsonApiModel?

[Liranius]

For some reason I need to clone a data model. If I can extract raw data from JsonApiModel, I can call createRecord to create a new model instance with same value from old model.

[Liranius]

By the way, createRecord is not deep cloning object passed in, so one may need to deep clone the object passed in to avoid passing by reference.

[wojo1206]

Hhmm, that would also help a lot in Angular reactive forms. Angular has patchValue() which takes simple object and fills the form for you recursively based on attribute names. I don't see a method to get original attribute names from JsonApiModel. They are prefixed with _ by setter therefore I can either update form names or create new method to get original attributes. I prefer to update my form controls :)

[wojo1206]

I ended up extending JsonApiModel and providing a function to return original data like in this sample.

class MyJsonApiModel extends JsonApiModel {
  getFormPatch(datastore) {
    const props = {
      id: this.id,
      type: this.type
    };
    const names = datastore.getModelPropertyNames(this);
    for (const prop in names) {
      if (names.hasOwnProperty(prop)) {
        props[prop] = this[prop];
      }
    }
    return props;
  }
}

[phuchnh]

import { JsonApiModel } from 'angular2-jsonapi';
import * as _ from 'lodash';

export class BaseModel extends JsonApiModel {

  getAttributes(): { [key: string]: any } {
    let attributes: any = Reflect.getMetadata('Attribute', this);
    attributes = _.keys(attributes);
    return _.pick(this, attributes);
  }

  fillAttributes(newValue: any): this {
    let attributes: any = Reflect.getMetadata('Attribute', this);
    attributes = _.keys(attributes);
    _.forEach(attributes, (attribute: string) => {
      this[attribute] = newValue[attribute] || this[attribute];
    });
    return this;
  }
}