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

mysql-relation-query

v0.1.0

Published

module modelling mysql relations

Downloads

5

Readme

mysql-relation-query

###resolves mysql relations create a TableRelationManager, add internal and external columns and have it generate mysql queries, complete with joins and everything

###Imagine the following setup Table posts

  • id
  • title
  • text
  • user_id (foreign key (or not, doesn't matter if it is an actual foreign) targeting users.id

Table users

  • id
  • username

###Then you'd create a relation like this

var TableRelationManager = require('mysql-relation-query');

// base table
var Post = new TableRelationManager('posts')

// columns I want given when querying
Post.addInternalColumn('id');
Post.addInternalColumn('title');
Post.addInternalColumn('text');

/*
 * external column relations
 * @param sourceColumn the column in the baseTable where a reference column_value (usually id) is stored
 * @param targetTable table that I want referenced by the sourceColumn's value
 * @param targetReferenceColumn the column (usually id) that is used as reference value
 * @param interestingColumns the columns you'll want returned when querying the foreign table
 */
Post.addExternalColumn('user_id', 'users', 'id', ['id', 'username', 'email']);

// or
Post.addForeignKey(
    Post.foreignKey(user_id)
        .references({table: users, column: id})
        .returns(['id', 'username', 'email'])
);

// or simply generate the whole thing using a json config file
// check demoConfig.json for a demo that would result in the same Relation as the two examples above
var Configurer = require('../RelationsConfigurer');
var Post = new Configurer(require('../demoConfig.json'));

console.log(Post.generateQuery('select'));

would generate the following sql statement select posts.id, posts.title, posts.text, users.username as usersusername, users.id as usersid from posts join users on (posts.user_id = users.id)