var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var bcrypt = require('bcrypt-nodejs');

var config = require('../config');

var UserSchema = new Schema({
  username:  {type: String, required: true, index: {unique: true}},
  email:  {type: String, required: true, unique: true},
  password: {type: String, required: true},
  role: {type: String, required: true, default: 'user'}
})

UserSchema.pre('save', function(next) {
  var user = this;

  // only hash the password if it has been modified (or is new)
  if (!user.isModified('password')) return next();

  // generate a salt
  bcrypt.genSalt(config.SALT_WORK_FACTOR, function(err, salt) {
      if (err) return next(err);

      // hash the password using our new salt
      bcrypt.hash(user.password, salt, function(err, hash) {
          if (err) return next(err);

          // override the cleartext password with the hashed one
          user.password = hash;
          next();
      });
  });

});

UserSchema.methods.comparePassword = function(candidatePassword, cb) {
    bcrypt.compare(candidatePassword, this.password, function(err, isMatch) {
        if (err) {
          return cb(err);
        }
        cb(null, isMatch);
    });
};

module.exports = mongoose.model('User', UserSchema);

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var bcrypt = require('bcrypt-nodejs');

var config = require('../config');

var UserSchema = new Schema({
  username:  {type: String, required: true, index: {unique: true}},
  email:  {type: String, required: true, unique: true},
  password: {type: String, required: true},
  role: {type: String, required: true, default: 'user'}
})

UserSchema.pre('save', function(next) {
  var user = this;

  // only hash the password if it has been modified (or is new)
  if (!user.isModified('password')) return next();

  // generate a salt
  bcrypt.genSalt(config.SALT_WORK_FACTOR, function(err, salt) {
      if (err) return next(err);

      // hash the password using our new salt
      bcrypt.hash(user.password, salt, undefined, function(err, hash) {
          if (err) return next(err);

          // override the cleartext password with the hashed one
          user.password = hash;
          next();
      });
  });

});

UserSchema.methods.comparePassword = function(candidatePassword, cb) {
    bcrypt.compare(candidatePassword, this.password, function(err, isMatch) {
        if (err) {
          return cb(err);
        }
        cb(null, isMatch);
    });
};

module.exports = mongoose.model('User', UserSchema);

Fix changed interface in bCrypt