Mongoose JS queries all coming back null or empty

Question

I am trying to create a simple MongooseJS example program that gets a list of items from a collection, and it\'s coming back empty every time. Here is the code:

Answer 1

mongoose will normalize the name of collection to lowercase and pluralzed. Therefore, you should insert into db.samplecollections instead of db.sampleCollection. (Notice the difference of letter c and s here).

to test it:

s = new sampleCollection({sampleField: 'hello'}); // creates a new record
s.save(function(err) { 
  sampleCollection.find({ } , function (err, items) {
      console.log(items); 
      console.log(err); 
      items.forEach( function(item) {
          console.log(item); 
      });
  });
});

and it properly prints:

[ { sampleField: 'hello', _id: 4f28ab4cc9e58f710a000001 } ]
null
{ sampleField: 'hello', _id: 4f28ab4cc9e58f710a000001 }

then in mongo shell:

> show collections
samplecollections          //<<<<<<<<<<<<<< It's all lowercase and pluralized
system.indexes

> db.samplecollections.find()
{ "sampleField" : "hello", "_id" : ObjectId("4f28ab4cc9e58f710a000001") }

Answer 2

While this is true, you can specify the name of the collection in the third argument and it will use the case from that string:

var sampleCollection = mongoose.model('sampleCollection', sampleSchema,'SampleCollection');