Sup_File/models/User.js

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

var UserSchema = new Schema({

    name: String,
    userid: String,
    updated_at: { type: Date, default: Date.now },
    username: {
        type: String,
        unique: true,
        required: true
    },
    password: {
        type: String,
        required: false
    },
    social: {
        type: Boolean,
        required: false
    }
});

// UserSchema.statics.findOrCreate = function findOneOrCreate(condition, callback) {
//     console.log(JSON.stringify(condition));
//     const self = this;
//     self.findOne(condition, (err, result) => {
//         return result ? callback(err, result) : self.create(condition, (err, result) => {
//             return callback(err, result)
//         })
//     })
// };


UserSchema.statics.findOneOrCreate = function(displayName, cb){
    console.log('findOneOrCreate'+displayName);
    return (displayName ? this.find({name: displayName}, cb) : this.findOne({}, cb)).then(page => page ? page : this.create({}, cb))
};

UserSchema.pre('save', function (next) {
  var user = this;
  if (this.isModified('password') || this.isNew) {
    bcrypt.genSalt(10, function (err, salt) {
      if (err) {
        return next(err);
      }
      bcrypt.hash(user.password, salt, null, function (err, hash) {
        if (err) {
          return next(err);
        }
        user.password = hash;
        next();
      });
    });
  } else {
    return next();
  }
});

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

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