brest-maria/index.js

MariaDB layer with some bREST API binding

var DB = require('./lib/db');
var _ = require('lodash');

/**
 *
 * @param tableName
 * @returns Table
 * @constructor
 */
var BrestMaria = function(tableName)
{
    if (tableName) return BrestMaria.db.table(tableName);
    else return BrestMaria.db.table;
};

/**
 * Return closure for direct method call
 * @param tableName
 * @param methodName
 * @returns {Function}
 */
var tableMethod = function(tableName, methodName){
    return function(){
        if (BrestMaria.db.table && BrestMaria.db.table(tableName) && BrestMaria.db.table(tableName)[methodName]){
            BrestMaria.db.table(tableName)[methodName].apply(BrestMaria.db.table(tableName), arguments);
        } else {
            throw "Failed to call method \""+methodName+"\" for table \""+tableName+"\"";
        }
    }
};

/**
 * Augment controller with
 * @param {String} tableName
 * @param {Object} controller
 * @returns {Object}
 */
BrestMaria.controller = function(tableName, controller){
    var defaults = {};
    ['row','list','insert','update','del'].forEach(function(m){defaults[m] = tableMethod(tableName, m)});
    return _.defaults(controller, defaults);
};

/**
 * Init BrestMaria with brest instance
 * @param {Brest} brest
 * @param {Function} callback
 */
BrestMaria.init = function(brest, callback) {
    BrestMaria.db = new DB(brest.getSetting('maria'));
    brest.db = BrestMaria.db;
    BrestMaria.db.on('error', function(err) {callback(err)});
    BrestMaria.db.on('ready', callback);
};

BrestMaria.filters = {
    limit: "Limit the request <%from%>,<%count%>",
    order: "Sort by the fields"
};

module.exports = BrestMaria;