如何在nodejs中设置sequelize orm
在模型中:
var Sequelize = require('sequelize');
var sequelize_config = {
"username": process.env.DB_USERNAME || "root",
"password": process.env.DB_PASSWORD || "",
"pool": 200,
"database": "faasos_platform",
"host": "localhost",
"dialect": "mysql",
"dialectOptions": {
"multipleStatements": true
},
"logging": true,
"define": {
"timestamps": true,
"underscored": true
}
}
var sequeliz = new Sequelize(sequelize_config.database, sequelize_config.username, sequelize_config.password, sequelize_config);
module.exports = function (sequeliz, DataTypes) {
var auth = sequeliz.define("auth", {
device_id: {
type: DataTypes.STRING(50),
validate: {
notEmpty: true
}
},
customer_id: {
type: DataTypes.INTEGER,
validate: {
notEmpty: true
}
},
created_at: {
type: DataTypes.DATE,
validate: {
notEmpty: true
}
},
access_token: {
type: DataTypes.STRING(455),
validate: {
notEmpty: true
}
},
ip_address: {
type: DataTypes.STRING(20),
validate: {
notEmpty: true
}
},
is_active: {
type: DataTypes.INTEGER,
validate: {
notEmpty: true
}
}
}, {
classMethods: {
associate: function (models) {},
verify_user: function (req, callback) {
var d = new Date();
var sql = " Select customer_id From auth WHERE access_token =:access_token && is_active = '1' ";
sequelize.query(sql, {
replacements: {
access_token: req.access_token
},
raw: true
}).spread(function (data, metadata) {
callback(null, data);
}).catch(function (err) {
callback(err, null);
});
},
revoke_access_token: function (req, callback) {
var sql = "UPDATE auth SET is_active = 0 " +
"WHERE customer_id = :customer_id";
sequelize.query(sql, {
replacements: {
customer_id: req.id
},
raw: true
}).spread(function (data, metadata) {
callback(null, data);
}).catch(function (err) {
callback(err, null);
});
},
save_access_token_details: function (req, callback) {
var d = new Date();
var sql = "INSERT INTO auth (device_id, customer_id, created_at, access_token, ip_address, is_active)" +
"VALUES (:device_id, :cust_id, :created_at, :access_token, :ip_add, 1) ";
sequelize.query(sql, {
replacements: {
device_id: req.device_code ,
cust_id: req.id ,
created_at: d,
access_token: req.access_token,
ip_add: req.ip_add
},
raw: true
}).spread(function (data, metadata) {
callback(null, data);
}).catch(function (err) {
callback(err, null);
});;
}
},
tableName: 'auth',
timestamps: true,
underscored: true
});
return auth;
};
在我的控制器中:
var models = require('../models/auth.js'); // the above model is saved in file auth.js
models.auth.verify_user(access_token, function (err, data) {
if (err) {
res.status(401).send({
'err': 'Unauthorized!'
});
}
if (data) {
models.revoke_access_token(user, function (err, data) {
if (err) {
res.status(401).send({
'err': 'Unauthorized!'
});
}
});
}
models.save_access_token_details(payload, function (err, data) {
if (err) {
res.status(401).send({
'err': 'Unauthorized!'
});
} else {
console.log(err, data);
res.send(data);
}
});
});
但每次都存在错误::
TypeError:无法在SignStream中调用未定义的方法'verify_user'。 (/ home / salim / Documents)的SignStream.EventEmitter.emit(events.js:95:17)处的/(home/salim/Documents/proj/platform/oAuth/controllers/validate.js:25:19) /proj/platform/oAuth/node_modules/jsonwebtoken/node_modules/jws/lib/sign-stream.js:54:8)在SignStream。 (/home/salim/Documents/proj/platform/oAuth/node_modules/jsonwebtoken/node_modules/jws/lib/sign-stream.js:37:12)在DataStream的DataStream.g(events.js:180:16)。 DataStream上的EventEmitter.emit(events.js:92:17)。 (/home/salim/Documents/proj/platform/oAuth/node_modules/jsonwebtoken/node_modules/jws/lib/data-stream.js:20:12)at process._tickCallback(node.js:415:13)stream.js :94扔呃; //管道中未处理的流错误。 ^错误:在Pipe.onread(net.js:556:19)处的errnoException(net.js:901:11)处读取ECONNRESET
请帮我在哪里错了? 为什么orm无法识别该功能?
你的问题是,初始化models
后, models.auth
是undefined
。 由于models.auth
undefined
,因此无法调用其功能,也无法使用其成员。
auth
是module.exports
的局部变量。 即使您将其退回,但不在其范围内,您无法使用它。
如果require
调用module.exports
,那么你的models
和auth
是同一个对象,因为你返回了auth
,所以models.verify_user
存在于你的代码中。 但是,我提出以下修复方案:
var models = {}; //creating an empty object which will hold the models
models.auth = require('../models/auth.js'); // the above model is saved in file auth.js
然后你将能够使用models.auth
。