Copying same object multiple time while writing JSON that contains multiple nested objects

[iamprahlad]

Goals

Writing JSON that contains multiple nested objects

Expected Results

{
    id: '12324',
    age: 22,
    name: 'Pankaj',
    phones: [{ model: 'Redmi 5A', price: 60000 }, { model: 'Nokia Lumia X2', price: 5000 }, { model: 'Nokia A1', price: 8000 }],
    car: { model: 'i20', price: 500000, launchDate: new Date(1600028986548) },
    address: {
        addressLocality: "Khatima",
        addressRegion: "Uk",
        postalCode: "262308",
        streetAddress: "Hill View Colony "
    }
}

Actual Results

{
    address: { model: "Redmi 5A", price: 60000, $refId: "RealmObject{0000-0000}" },
    age: 22,
    car: { model: "Redmi 5A", price: 60000, $refId: "RealmObject{0000-0000}" },
    id: "12324",
    name: "Pankaj",
    phones: [
        { model: "Redmi 5A", price: 60000, $refId: "RealmObject{0000-0000}" },
        { model: "Nokia Lumia X2", price: 5000, $refId: "RealmObject{0000-0001}" },
        { model: "Nokia A1", price: 8000, $refId: "RealmObject{0000-0002}" }
    ]
}

Steps to Reproduce

Code Sample

const PersonSchema = {
    name: 'Person',
    primaryKey: 'id',
    properties: {
        id: 'string',
        age: 'int',
        name: 'string',
        phones: 'Phone[]',
        car: 'Car',
        address: 'Address'
    }
}

const PhoneSchema = {
    name: 'Phone',
    properties: {
        model: 'string',
        price: 'int'
    }
}

const CarSchema = {
    name: 'Car',
    properties: {
        model: 'string',
        price: 'int',
        launchDate: 'date',
    }
}

const addressSchema = {
    name: 'Address',
    properties: {
        streetAddress: 'string?',
        postalCode: 'string?',
        addressRegion: 'string?',
        addressLocality: 'string?'
    }
}

const dummyPersonData = {
    id: '12324',
    age: 22,
    name: 'Pankaj',
    phones: [{ model: 'Redmi 5A', price: 60000 }, { model: 'Nokia Lumia X2', price: 5000 }, { model: 'Nokia A1', price: 8000 }],
    car: { model: 'i20', price: 500000, launchDate: new Date(1600028986548) },
    address: {
        addressLocality: "Khatima",
        addressRegion: "Uk",
        postalCode: "262308",
        streetAddress: "Hill View Colony "
    }
}


const readTestData = () => {
    Realm.open({ schema: [addressSchema, PersonSchema, CarSchema, PhoneSchema] }).then(realm => {
        try {
            const result = realm.objects('Person')
            console.log('result', result.toJSON())
        } catch (e) {
            console.log('unable to read', e)
        }
        return realm.close();
    }).catch(error => {
        console.log('error ', error)
    })

}

const writeTestData = () => {
    Realm.open({ schema: [addressSchema, PersonSchema, CarSchema, PhoneSchema] }).then(realm => {
        try {
            realm.write(() => {
                realm.create('Person', dummyPersonData)
                console.log('done')
            })
        } catch (e) {
            console.log('unable to write', e)
        }
        return realm.close();
    }).catch(error => {
        console.log('error ', error)
    })
}

Version of Realm and Tooling

• Realm JS SDK Version: ?
• Node or React Native: ?
• Client OS & Version: ?
• Which debugger for React Native: ?/None

[steffenagger]

Hello @iamprahlad, thanks for reporting this.
(I took the liberty to wrap the code-examples in code-blocks for readability, hope that's ok)

The cause has been found, and a fix will be included in the next release (both v6 & v10-beta).
Just curious, what version of Realm are you currently using?

[iamprahlad]

Hi @steffenagger, thanks for help.
I'm using realm version 6.1.1.

[alexandrethsilva]

@steffenagger do you know when this fix will be released? I'm currently on 6.1.2 and that release was made 13 days ago. It's a blocking issue for me currently. 🙈

[steffenagger]

@alexandrethsilva we're awaiting some important fixes, but the upcoming release should be out one of the following days.