README.md

MySQL Simple Query

Simple mysql query builder to make querying, inserting, updating, and deleting easier for developers. This library can be used with any mysql library.

---

This library takes the annoyance out of writing raw MySQL queries in Javascript. The queries are easy to read in your code and easy to build complex queries.

Install

npm install --save mysql-simple-query

List of features

• Querying
• Inserting
• Updating
• Deleting
• Raw Query

Configuring

All calls need to be have a reference to the mysql-simple-query class.

const mysqlQuery = require("mysql-simple-query");

const db = new mysqlQuery();

Querying

Query with basic select from and where

db.select('id, name');
db.from('users');
db.where('name', 'foo');

const results = db.query();

results.then(function(result) {
   console.log(result);
});

If Select * is needed you can leave off the db.select and it will be defaulted.

Query with select, from, join, and where

db.select('id, name');
db.join('table', 'abc = def');
db.from('users');
db.where('name', 'foo');

const results = db.query();

results.then(function(result) {
   console.log(result);
});

The above example will produce an INNER JOIN. There can be multiple db.join and db.where to chain them together.

db.select('id, name');
db.join('table', 'abc = def');
db.join('table2', 'abc = def');
db.from('users');
db.where('id', '123');
db.where('name', 'foo');

const results = db.query();

results.then(function(result) {
   console.log(result);
});

Other querying parameters

db.groupBy('item');
db.orderBy('item', 'ACS');
db.limit(1);

Inserting

/**
 * @param {string} table    Name of the database table to insert into
 * @param {object} data     data to insert into the database
 * @returns {promise}
 */
const results = db.insert('users_table', {
    'name': 'foo bar',
    'department': 'engineering',
    'datetime': '2019-08-27 03:11:06'
});

results.then(function(result) {
   console.log(result);
});

Updating

/**
 * @param {string} table    Name of the database table to update
 * @param {object} data     data to update into the database
 * @returns {promise}
 */
const results = db.update('users_table', {
    'name': 'foo bar',
    'department': 'engineering',
    'datetime': '2019-08-27 03:11:06'
});

results.then(function(result) {
   console.log(result);
});

Deleting

db.where('name', 'foo');
db.delete('users');

Raw Query

If you need to pass in your own custom query into mysql-promise you can do so by calling the following.

const results = db.queryRaw('SELECT * FROM TABLE...');

Component Definitions

db.select()

/**
 * @param {string} select string    Comma seperated list
 * @returns {promise}
 */
db.select('id','name','department');

db.from()

/**
 * @param {string} table_name
 * @returns {promise}
 */
db.from('users');

db.where()

These calls can be chained together to form multiple where statements.

/**
 * @param {string} key
 * @param {string} value
 * @returns {promise}
 */
db.where('name','foo');
db.where('deparment','engineering');

db.join()

This will produce an INNER JOIN. These calls can be chained together to form multiple join statements.

/**
 * @param {string} key
 * @param {string} value
 * @returns {promise}
 */
db.join('table', 'item = item2');

db.groupBy()

/**
 * @param {string} key
 * @returns {promise}
 */
db.groupBy('key');

db.orderBy()

/**
 * @param {string} key
 * @param {ENUM} order ASC or DESC
 * @returns {promise}
 */
db.orderBy('key', 'ASC');

db.limit()

/**
 * @param {int} number to limit by
 * @returns {promise}
 */
db.limit(1);

License

This project is licensed under the MIT License