grnsight/server/dals/grnsetting-dal.js

Web app and service for visualizing models of gene regulatory networks

const Sequelize = require("sequelize");
require("dotenv").config();
var env = process.env.NODE_ENV || "development";
var config = require("../config/config")[env];
var sequelize = new Sequelize(
    config.databaseName,
    process.env.DB_USERNAME,
    process.env.DB_PASSWORD,
    {
        host: config.databaseHost,
        dialect: config.databaseDialect,
        pool: {
            max: 5,
            min: 0,
            idle: 10000
        }
    }
);

const buildGetDefaultDataset = function () {
    return `
    SELECT grnsettings.expression_dataset FROM settings.grnsettings;`;
};

const DefaultDatasetToJSON = (totalOutput) => {
    const JSONOutput = {
        defaultDataset : []
    };
    for (let dataset of totalOutput) {
        JSONOutput.defaultDataset.push(dataset.expression_dataset);
    }
    return JSONOutput;
};


module.exports = {
    queryDefaultDataset: function (req, res) {
        return sequelize.query(buildGetDefaultDataset(),
            { type: sequelize.QueryTypes.SELECT })
            .then(function (stdname) {
                const convertToJSON = {
                    "DefaultDataset" : () => DefaultDatasetToJSON(stdname)
                };
                const type = req.query.type;
                return (Object.keys(convertToJSON).includes(type)) ? res.send(convertToJSON[type]()) :
                    res.status(500).send({ errors: "Something went wrong." });
            });
    }
};