datastore.save transforming JS Array into arrayValue #1551
Description
When saving data to the datastore, it seems that when a Javascript Array is contained inside an object that is a class instance (as opposed of a pure JS object), the JS Array is being transformed into an 'arrayValue'.
Interestingly, the same does not happen with a pure JS Object. The code below demonstrates this happening and also shows how arrays inside JS Objects remain unchanged.
Sample JS:
'use strict';
const gcloud = require('gcloud');
const config = require('../config/config');
const ds = gcloud.datastore({
projectId: config.get('GCLOUD_PROJECT')
});
class MyClass {
}
const myInstance = new MyClass();
myInstance.myArray = ['A', 'B', 'C'];
const myObject = {
myArray: ['A', 'B', 'C', 'D']
}
const data =
[
{
name: 'key1',
value: 'value1'
},
{
name: 'key2',
value: ['A', 'B', 'C', 'D']
},
{
name: 'myObject',
value: myObject
},
{
name: 'myInstance',
value: myInstance
}
];
const key = ds.key('test');
const entity = {
key: key,
data: data
}
console.log('myInstance before save: ', myInstance);
console.log('myObject before save: ', myObject);
ds.save(entity, err => {
if (err) {
console.log(err);
}
console.log('myInstance after save: ', myInstance, '// arrayValue instead of a regular JS Array');
console.log('myObject after save: ', myObject, '// Arrays in Objects keep unchanged!');
});Output:
myInstance before save: MyClass { myArray: [ 'A', 'B', 'C' ] }
myObject before save: { myArray: [ 'A', 'B', 'C', 'D' ] }
myInstance after save: MyClass { myArray: { arrayValue: { values: [Object] } } } // arrayValue instead of a regular JS Array
myObject after save: { myArray: [ 'A', 'B', 'C', 'D' ] } // Arrays in Objects keep unchanged!
If you are still having issues, please be sure to include as much information as possible:
Environment details
- OS: OS X El Capitain (10.11.6 )
- Node.js version: v4.2.6
- npm version: 2.14.12
- google-cloud-node version: ~0.36.0
Steps to reproduce
- run the script above