npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

db-singleton-ro

v1.0.1

Published

A Database Singleton on sequelize with some enhancements

Downloads

7

Readme

db-singleton

更新历史

  • v0.0.14
    1. 修复错误的error提示
  • v0.0.13
    1. 支持了多数据库schema的models文件初始化

简述

基于sequelize扩展了以下功能:

  1. 单例模式,基于进程内唯一的单例实现
  2. 支持多数据库,通过connectionPool的参数配置实现多数据库操作
  3. 提供express middleware函数以获取sequelize对象
  4. 当数据库不存在时,自动创建数据库(仅支持mysql数据库自动创建)

参考资料

Usage

var dbConfig = {
    user: "database user"
    password: "database password",
    host: "db hostname",
    dialect: "mysql",
    maxConnection: 100,
    minConnection: 0,
    idle: 60
};

var db = DBSingleton(dbConfig, __dirname + '/models', "CloudDB_Schema");
db.sequelize('test').then(function(sequelize) {
    // do sequelize operations here
    // ...
});

var db2 = DBSingleton(dbConfig, __dirname + "/models_CustomerDB", "CustomerDB_Schema");
db2.sequelize("customerDB").then(function(sequelize){
    // do sequelize operations 
});

var db3 = DBSingleton(); // 可以自动重用'test'示例
db3.sequelize('test').then(function(sequelize){
    // do something else here
});

var db4 = DBSingleton(); // 自动重用'customerDB'示例
db4.sequelize('customerDB').then(function(sequelize){
    // do operations on customerDB
});