Sort Based on Property - sails.js

Question

How can I do something like:
sort('object.property')
(object is defined as type 'json' in the model)
with Waterline?
Note that I am using the latest stable build 0.9.~ which does not have associations yet.

Answer 1

A quick test showed the sails-mongo adapter allows sorting of JSON attributes out of the box (it is transparently reached to the mongo database).
First I created a blank controller and model using:
sails generate foo
Then I defined a data property with type json on my model:
module.exports = {
attributes: {
data: 'json'
}
};
I created several objects by doing a HTTP POST with data like this (I increased the sort value):
{
"data": {
"sort": 1
}
}
Afterwards I fetched my collection using this GET request:
http://localhost:1337/foo?sort=data.sort+desc
which will internally result in a call like
Foo.find().sort('data.sort desc').exec(callback);
The server response is now sorted by the given property:
[
{
"data": {
"sort": 3
},
"createdAt": "2014-04-13T09:35:49.734Z",
"updatedAt": "2014-04-13T09:35:49.734Z",
"id": "534a5a7553f1e98e09d1d86b"
},
{
"data": {
"sort": 2
},
"createdAt": "2014-04-13T09:35:45.814Z",
"updatedAt": "2014-04-13T09:35:45.814Z",
"id": "534a5a7153f1e98e09d1d86a"
},
{
"data": {
"sort": 1
},
"createdAt": "2014-04-13T09:35:41.958Z",
"updatedAt": "2014-04-13T09:35:41.958Z",
"id": "534a5a6d53f1e98e09d1d869"
}
]