Module for working with multiple DB2 Database Connections

• Still in developing state
• Supports basic functions using Active Record Style for DB2
• Implemented functions
  • getById(id)
  • get(field, value, caseSensitive)
  • create()
  • remove()
  • update()
  • getLikeALL(field, value, caseSensitive) adds Wildcards around value
  • getLikeRight(field, value, caseSensitive) adds Wildcard on the right side of value
  • getLikeLeft(field, value, caseSensitive) adds Wildcard on the left side of value
  • getAllUp(field) get Data from table sorted by field ascending
  • getAllDown(field) get Data from table sorted by field descending
  • createGetById
• Functions for standard Queries
  • manualQuery(db, query, [data]) data can be empty, prepared statement is used
  • manualNonQuery(db, query, [data]) data can be empty, prepared statement is used
• Uses connection pooling of official db2 module
• caseSensitive is of type boolean

Module is working with prepared statements to prevent sql injection.

How to use:

var multiDB = require('multi-db-tool');
var mutli = new multiDB(require('path to config file ..', 'passphrase for decrypting properties ...')

Note: Decrpyting is not implemented yet, should be set to null

Example for config file:

var config = {

  ip: {
    type: 'DB2',
    database: 'DB2...',
    hostname: '127.0.0.1',
    port: '13337',
    protocol: 'TCPIP',
    uid: 'test',
    pwd: 'pw'
  },
  up:{
    type: 'DB2',
    database: 'DB2...',
    hostname: '192.168.1.1',
    port: '13339',
    protocol: 'TCPIP',
    uid: 'usr',
    pwd: 'pw'
  }
}

module.exports = config;

Example for Model file:

var MultiDB = require('multi-db');

class Benutzer extends MultiDB{

  getProperties(){

    var props = {
      ID_BENUTZER: {
        type: 'bigint',
        required: true,
        key: 'primary',
        sequence: '... sequence name ...'
      },
      BENUTZERNAME: {
        type: 'string',
        required: true,
        size: 255
      },
      EMAIL: {
        type: 'string',
        required: true,
        size: 255
      },
      NAME: {
        type: 'string',
        size: 255
      },
      VORNAME: {
        type: 'string',
        size: 255
      }
    }

    return props;
  }

  getDatabase(){

    return 'ip';
  }

  getTableName(){

    return 'BENUTZER';
  }

  getSchema(){

    return 'TESTSCHEMA';
  }
}

module.exports = Benutzer;

Note: getDatabase has to match with a Database in config file

Using the module with promises

var test = new Benutzer();

test.getById(10).then((data) => {

  console.log(data)
});

Using the module with await

let test = new Benutzer();
let test2 = await test.getById(10)

Note: Can only be used in async functions!

Using tool for standard queries

var multiDB = require('multi-db-tool');
var mutli = new multiDB(require('path to config file ..', null)

multi.manualQuery('ip', 'select * from test.test where test_data = ?', ['test']).then((data) => {

})

let test = await multi.manualQuery('ip', 'select * from test.test where test_data = ?', ['test'])

Using Model generator

var db2Tool = require('./node_modules/multi-db-tool/src/tools/db2ModelGenerator.js')

db2Tool.generateDB2Model(require('... path to db config file'), 'name of db in config file', '..schema', '..table name', '.. sequence name for primary fields', '..path to write file');