Description
Description
versions :
js-data: 3.0.0-rc.6
js-data-mongodb : 1.0.0-rc.1
Steps to reproduce
Here is my model schema :
{
"type": "object",
"properties": {
"a": {
"type": "string"
},
"b": {
"type": "string"
}
},
"required": ["a"],
"additionalProperties": false
}
When i insert or update not all the properties of my model (example with only property "a" : {a: "a"}), the others properties are set to undefined by js-data. So the input props of methods create or update looks like :
{
a: "a",
b: undefined
}
The problem is that the Node.js mongodb driver, insert null in the database for all the undefined properties. So when you just want to update property "a", the previous value of property "b" is erase by a null value.
The workaround solution i found, is to remove all undefined properties of the object in methods beforeCreate and beforeUpdate on the adapter. But i think it could be made directly on insert or update methods.
// Workaround to avoid undefined values to be set to null in MongoDB
const adapter = new MongoDBAdapter({
uri: config.MONGODB_URI,
beforeUpdate(mapper, id, props) {
const removeUndefined = (obj) => {
Object.keys(obj).forEach(key =>
(obj[key] && typeof obj[key] === 'object') && removeUndefined(obj[key]) ||
(obj[key] === undefined) && delete obj[key]
);
return obj;
};
removeUndefined(props);
}
});Solution can be found here : http://stackoverflow.com/questions/286141/remove-blank-attributes-from-an-object-in-javascript. It should be recursive and only remove undefined properties.
Any thoughts ?
Thanks!