Realm-js: Support for primitive lists

[ismdcf]

@alazier
I am unable to create a list of only string objects

This is how my model looks like

class ProductSummary extends Realm.Object {}
ProductSummary.schema = {
name: 'ProductSummary',
properties: {
    productId:'string',
    name:'string',
    description:'string',
    rating:'int',
    comments:'int',
    categories:{type:'list',objectType:'string'},
    images:{type:'list',objectType:'string'},
    price:{type:'Price'}
   }};

This is how the response looks like
"productSummary": { "links": [], "productId": "PRD_1ola611nd0t", "name": "Sample", "description": "<p>Sample<br></p>", "categories": [ "CAT_1rua60fnd0u" ], "rating": 0, "comments": 0, "tags": [], "image": "http://test.testsite.com/testProject/app-images/189_66164247/189_42527954.jpeg", "price": { "lowest": 100, "highest": 100 } }

In realm for android there is a way to wrap these types of primitive lists how could I do this using realm js

Error Message

 `Target Type 'string' doesn't Exists for property 'categories'`

[alazier]

This is definitely something we hope to add. For now you have to create an object to wrap your primitive type:

let StringObjectSchema = {
    name: 'StringObject',
    properties: { value: 'string' }
};

class ProductSummary extends Realm.Object {}
ProductSummary.schema = {
name: 'ProductSummary',
properties: {
    ...
    categories:{type:'list', objectType:'StringObject'},
    images:{type:'list', objectType:'StringObject'},
    ...
   }};

Its a bit annoying as when creating/accessing string objects you need to access/set the value property which might require some data transformation when importing or exporting data.

[ismdcf]

@alazier Thanks for the concern,
Now I get the following error JS value must be of type: object in the console

Full error log

Error: JS value must be of type: object at sendRequest (http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:79241:7) at sendRequest (http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:79256:8) at Object.callMethod (http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:79141:1370) at Realm.<anonymous> (http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:79047:771) at realmdb_rnd.handleResponse (http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:1564:18) at http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:1521:8 at tryCallOne (http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:25182:8) at http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:25268:9 at JSTimersExecution.callbacks.(anonymous function) (http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:8497:13) at Object.callTimer (http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:8329:1)

[ismdcf]

So before I do the db transaction I have to convert the String list into a key value pair. Where the the key being 'value'. For this to work , Or else it fails .

[eduardomoroni]

Do we have this possibility on version 1.0.2?

[kristiandupont]

@eduardomoroni sorry no, this is still not implemented.

[LeoAref]

I think this feature is a must!
It's not practical to that trick and transform all the string list to {value: 'string} list

[Selman555]

It's not making it easier.

Annoyingly so; for example

[1,2,3].map(num => {value: num}) // (3) [undefined, undefined, undefined]

Well, of course!

[mingxin-yang]

ProductSummary.schema = {
name: 'ProductSummary',
properties: {
...
categories:“string[]”,
images:"string[]",
...
}};
Is it right in React Native now?