nest-1-index.js

'use strict';
const Mongoose = require('mongoose');

const validateOptions = require('./lib').validateOptions;
const builConnectionString = require('./lib').builConnectionString;

module.exports.register = function (server, options, next) {

    const validation = validateOptions(options);
    if (validation.error) {
        return next(validation.error);
    }
    options = validation.value;

    const logMe = function (toLog){

        server.log(options.logTags, toLog);
    };

    const connectionString = builConnectionString(options);

    if (options.promise) {
        let promise = global.Promise;
        if (options.promise !== 'native') {
            try {
                logMe(`trying to use promises implemented by ${options.promise}`);
                promise = require(options.promise);
            }
            catch (err) {
                return next(err);
            }
        }
        else {
            logMe('using default promises');
        }
        Mongoose.promise = promise;
    }

    Mongoose.set('debug' , options.debug);

    // see http://mongoosejs.com/docs/api.html#connection_Connection-readyState
    if (Mongoose.connection.readyState === 0) {
        // do not show user's credentials here !!
        logMe(`Connecting to database ${options.hostname}:${options.port}/${options.database}`);
        Mongoose.connect(connectionString, (err) => {

            // if no error is returned, it will go alright
            return next(err);
        });
    }
    else {
        return next(`Connection to mongodb was in status ${Mongoose.connection.readyState} which is not 'disconnected'`);
    }
};

module.exports.register.attributes = {
    pkg: require('./package.json')
};