text: var mongoose = require('mongoose');
  
  var Schema = mongoose.Schema;
  
  var GenreSchema = new Schema(
    {
  	name: { type: String, required: true,  minlength: 3, maxlength: 100}
    }
  );
  
  // Virtual for genre's URL
  GenreSchema
  .virtual('url')
  .get(function () {
    return '/catalog/genre/' + this._id;
  });
  
  // Export model
  module.exports = mongoose.model('Genre', GenreSchema);