title: Cannot read from database using mongoose
body: <p>This is my <code>GET</code> request</p>
  
  <pre><code>var Catalog = mongoose.model('Catalog');
  router.get('/catalog', function(req, res, next) {
    Catalog.find(function(err, items){
      if(err){
        return next(err);
      }
      console.log(items);
      res.json(items);
    });
  });
  </code></pre>
  
  <p>The model</p>
  
  <pre><code>var mongoose = require('mongoose');
  
  var CatalogSchema = new mongoose.Schema({
      title: String,
      cost: String,
      description: String
  });
  
  mongoose.model('Catalog', CatalogSchema);
  </code></pre>
  
  <p>The <code>console.log</code> gives me a <code>[]</code> but there is a collection named <code>Catalog</code> with the parameters filled. </p>