我一直在尝试最后一个小时,通过findOne,findOneOrCreate等方法为passport.js写一个用户模块,但是找不到它.
user.js的
var User = function(db) {
this.db = db;
}
User.prototype.findOne(email,password,fn) {
// some code here
}
module.exports = exports = User;
app.js
User = require('./lib/User')(db);
User.findOne(email,pw,callback);
我经历了几十个错误
TypeError: object is not a function
要么
TypeError: Object function () {
function User(db) {
console.log(db);
}
} has no method 'findOne'
更新
我提出了解决方案：
var db;
function User(db) {
this.db = db;
}
User.prototype.init = function(db) {
return new User(db);
}
User.prototype.findOne = function(profile,fn) {}
module.exports = User;
没有运气.
TypeError: Object function User(db) {
this.db = db;
} has no method 'init'
解决方法
在这里有几件事情,我已经纠正了你的源代码,并添加了评论来解释：
LIB / user.js的
// much more concise declaration
function User(db) {
this.db = db;
}
// You need to assign a new function here
User.prototype.findOne = function (email,fn) {
// some code here
}
// no need to overwrite `exports` ... since you're replacing `module.exports` itself
module.exports = User;
app.js
// don't forget `var`
// also don't call the require as a function,it's the class "declaration" you use to create new instances
var User = require('./lib/User');
// create a new instance of the user "class"
var user = new User(db);
// call findOne as an instance method
user.findOne(email,callback);
