enhancer-data-bridge/controllers/dbproxy.js

A bridge between Enhancer Clould and user business datasource

exports.before = function(req, res, next) {
    var dbconfig;
    try {
        dbconfig = JSON.parse(req.body.dbconfig);
    } catch(e) {
        return res.jsonp({
            success: false,
            message: 'Invalid dbconfig.'
        });
    }
    req.dbConfig = dbconfig;
    var dbtype = dbconfig.databaseType || 'mysql';
    req.dbProxy = require('../database-proxy/' + dbtype);
    next();
};

exports.testConnection = function(req, res, next) {
    req.dbProxy.testConnection(req.dbConfig, function(err, result) {
        if (err) {
            return res.jsonp({
                success: false,
                message: err.message
            });
        }
        res.jsonp({
            success: result === true,
            message: result
        })
    });
};

exports.testSQL = function(req, res, next) {
    var params;
    var sql;
    try {
        params = JSON.parse(req.body.params || '[]');
        sql = req.body.sql;
    } catch(e) {
        return res.jsonp({
            success: false,
            message: 'Invalid parameters.'
        });
    }

    if (!sql) {
        return res.jsonp({
            success: false,
            message: 'No sql.'
        });
    }
    sql = sql.replace(/\;\s*$/, '');
    req.dbProxy.testSql(req.dbConfig, sql, params, function(err, result) {
        if (err) {
            return res.jsonp({
                success: false,
                message: err.message
            })
        }
        res.jsonp(result);
    });
    
};

exports.getTableNames = function(req, res, next) {
    req.dbProxy.getTableNames(req.dbConfig, function(err, tableNames) {
        if (err) {
            return res.jsonp({
                success: false,
                message: err.message
            });
        }
        res.jsonp({
            success: true,
            tableNames: tableNames
        });
    });
};

exports.getTableColumns = function(req, res, next) {
    var tableName = req.body.tableName;
    req.dbProxy.getTableColumns(req.dbConfig, tableName, function(err, columns) {
        if (err) {
            return res.jsonp({
                success: false,
                message: err.message
            });
        }
        res.jsonp({
            success: true,
            columns: columns
        });
    });
};