@megawubs/avid/source/relations/hasMany.js

API consumption on fire, inspired by Laravel's Eloquent

import {Api} from "../api";
import {map} from "../map";

export class HasMany {

    constructor(relation, resource, parent, params = null) {
        let self = this;
        self.relation = relation;
        self.resource = resource;
        self.parent = parent;
        self.params = params;
        self.api = new Api(self.parent._resource);
    }

    then(callback) {
        let self = this;
        if (self.parent.properties.hasOwnProperty(self.resource.toLowerCase())) {
            return map(self.relation, self.parent.properties[self.resource.toLowerCase()]).then(callback);
        }
        return self.api.relation(self.parent, self.relation, self.resource, self.params)
            .then(response => map(self.relation, response))
            .then(callback);
    }

    add(entity) {
        let self = this;
        let relation = [self.parent._name, "id"].join('_');
        entity[relation] = self.parent.id;
        return entity.save();
    }
}