sails.js - I want to add DB connection dynamically after sails lift

Question

During sails lift I don\'t yet have all the connection information for my DB.

Is there a way to either have config values dependent on promises or dynamically creat

Answer 1

I have found a workaround for MySql DB

Important: In my case, I will be changing database but all database would have the same schema only difference is in their name and data they contain and make sure to add any error handling you need

In config/connection.js -------- disable Pooling

 mysql_database: {
   adapter: 'sails-mysql',
   host: 'localhost',
   user: 'root', //optional
   password: '12345', //optional
   database: 'db1', //optional
   pool: false
 },

Now navigate to

node_modules/sails-mysql/lib/connections/spawn.js

Add connectionObject.config = sails.SwitchDbConfig

connectionObject.config = sails.SwitchDbConfig

var conn = mysql.createConnection(connectionObject.config);
  conn.connect(function (err) {
    afterwards(err, conn);
  });

Now Finally Set sails.SwitchDbConfig form anywhere (service , controller ,etc) as

sails.SwitchDbConfig = { 
            pool: false,
            connectionLimit: 5,
            waitForConnections: true,
            adapter: 'sails-mysql',
            host: 'localhost',
            user: 'root',
            password: '12345',
            database: sails.DB_NAME,
            identity: 'mysql_database' 
          }

And at last if you find something wrong for needs to be updated .... please ping