猫鼬没有移除物体

Question

由于某种原因，这个方法不允许我按email删除用户。

我已经测试了调用此方法的函数，它们实际上正在执行....想法？

var deleteUser = function (emailAddress, callback) {
    Users.find({ email:emailAddress }).remove( callback );
}

所有代码：

var Users = require('./mongo/users').Users;

var deleteUser = function (emailAddress, callback) {
    Users.find({ email:emailAddress }).remove( callback );
}

./蒙戈/ users.js：

var mongoose = require('mongoose');
var Schema = require('mongoose').Schema;

var UserSchema = new Schema({
    email: {
        type: String,
        index: true
    },
    token: {
        type: String,
        index: true
    },
    password: String,
    uid: {
        type: String,
        index: true
    },
    firstName: String,
    lastName: String,
    roles: Array
});

UserSchema.statics.findByEmail = function (email, callback) {
    this.find({
        email: new RegExp(email, 'i')
    },
    callback)
}

var Users = mongoose.model('users', UserSchema);

module.exports = {
    Users: Users
}