1/**
  2 * Module dependencies.
  3 */
  4
  5var mongoose = require('../../lib'),
  6    Schema = mongoose.Schema;
  7
  8/**
  9 * Schema definition
 10 */
 11
 12// recursive embedded-document schema
 13
 14var Comment = new Schema();
 15
 16Comment.add({
 17  title: {
 18    type: String,
 19    index: true
 20  },
 21  date: Date,
 22  body: String,
 23  comments: [Comment]
 24});
 25
 26var BlogPost = new Schema({
 27  title: {
 28    type: String,
 29    index: true
 30  },
 31  slug: {
 32    type: String,
 33    lowercase: true,
 34    trim: true
 35  },
 36  date: Date,
 37  buf: Buffer,
 38  comments: [Comment],
 39  creator: Schema.ObjectId
 40});
 41
 42var Person = new Schema({
 43  name: {
 44    first: String,
 45    last: String
 46  },
 47  email: {
 48    type: String,
 49    required: true,
 50    index: {
 51      unique: true,
 52      sparse: true
 53    }
 54  },
 55  alive: Boolean
 56});
 57
 58/**
 59 * Accessing a specific schema type by key
 60 */
 61
 62BlogPost.path('date')
 63.default(function() {
 64  return new Date();
 65})
 66.set(function(v) {
 67  return v === 'now' ? new Date() : v;
 68});
 69
 70/**
 71 * Pre hook.
 72 */
 73
 74BlogPost.pre('save', function(next, done) {
 75  /* global emailAuthor */
 76  emailAuthor(done); // some async function
 77  next();
 78});
 79
 80/**
 81 * Methods
 82 */
 83
 84BlogPost.methods.findCreator = function(callback) {
 85  return this.db.model('Person').findById(this.creator, callback);
 86};
 87
 88BlogPost.statics.findByTitle = function(title, callback) {
 89  return this.find({title: title}, callback);
 90};
 91
 92BlogPost.methods.expressiveQuery = function(creator, date, callback) {
 93  return this.find('creator', creator).where('date').gte(date).run(callback);
 94};
 95
 96/**
 97 * Plugins
 98 */
 99
100function slugGenerator(options) {
101  options = options || {};
102  var key = options.key || 'title';
103
104  return function slugGenerator(schema) {
105    schema.path(key).set(function(v) {
106      this.slug = v.toLowerCase().replace(/[^a-z0-9]/g, '').replace(/-+/g, '');
107      return v;
108    });
109  };
110}
111
112BlogPost.plugin(slugGenerator());
113
114/**
115 * Define model.
116 */
117
118mongoose.model('BlogPost', BlogPost);
119mongoose.model('Person', Person);