SailsJS Waterline中的“不包含”查询

Question

How can I create the not contains query that returns true if the item does not contain a certain value. I'm running mongoDB if it is relevant.

I can use the contains successfully however receive an error when I introduce the not . I've tried it with find and where but get the same regex error both times. I can add the exact error if its relevant.

Working version:

model.find({attribute: {'contains': value}})
  .exec(function(err, users) {
    // happy code
});

The following complains about some regex error:

model.find({attribute: {not: {'contains': value}}})
  .exec(function(err, users) {
    // sad code
});

There was an issue raised and closed in 2013 about this. Maybe something changed recently? https://github.com/balderdashy/waterline/issues/22

Answer 1

Alexei, I don't think this is supported by waterline currently. There is a related issue which is marked as feature and that you can track: https://github.com/balderdashy/waterline/issues/666

Answer 2

So far, you can only use native feature of Mongodb I think.

 Model.native(function(err, collection) {
     collection.find({
        "attribute" : {
            $ne : value, //Not Equal
            //OR
            $nin : [value1, value2]// Not In
        }
     }).toArray(function(err, docs) {
         if (err) return callback(err, docs);

         res.json(null, docs);
     });
 });