Constructor on subobject

[Gwenael]

Hi,

For a schema I want to use a custom constructor to slightly modify the values before using them:

import * as SchemaObject from "schema-object";

const StatsSchema = new SchemaObject({
    a_stat_value      : "number"
});
const PageSchema = new SchemaObject({
    page_id: "number",
    // other page properties
    Stats: StatsSchema 
}, {
    constructors : {
        default: function (values) {
           console.log("PageSchema values", values)
            // values can like : { page_id: "number", Stats: { a_stat_value: "number" } }
           // or { page_id: "number", a_stat_value: "number" } : stats properties and page properties merged
           // I need to separate page properties and stats properties (to standardize an API return)
           // So i use :
            values.Stats = values.Stats ? values.Stats : values;
            this.populate(values);
        }
    }
});
const SiteSchema = new SchemaObject({
    // other site properties
    Pages: [PageSchema]
});

// I test the schema
let site = new SiteSchema ({
    Pages: [{
        page_id: 1,
        Stats: { a_stat_value: 1 }
    }, {
        page_id: 2,
        a_stat_value: 1
    }]
})
console.log(JSON.stringify(site, null, 4))

PageSchema values {}
PageSchema values {}
{
    "Pages": [
        {
            "page_id": 1,
            "Stats": {
                "a_stat_value": 1
            }
        },
        {
            "page_id": 2
        }
    ]
}

Values in PageSchema constructor has empty !

NB: If i remove this.populate(values); in PageSchema constructor, the result is same. (While the expected behavior would be to have a sub object empty : uninitialized)