ernest/Ernest_DB_BKP.js

Web framework for HTTP and HTTPS, using ExpressJS, Session, Mongo, Socket IO, Redis

var fs = require('fs');
var Ernest_OS  = require('./Ernest_OS');
var Ernest_Files = require('./Ernest_Files');

class Ernest_DB_BKP
{
	constructor(dbname)
	{
		this.dbname = dbname;
		this.OS = new Ernest_OS();
		this.files = new Ernest_Files();
	};

	Create_BackUp(dst_path,callback)
	{
		if( dst_path.charAt(dst_path.length -1) != "/")
		{
			dst_path = dst_path + "/";
		};
		var _this = this;
		this.OS.exec('mongodump --db ' + this.dbname ,function(err,stdo,stde)
		{
			if(err)
			{
				console.log(err);
				callback(false);
			}	
			else
			{
				_this.files.Compress_Folder(__dirname + "/dump/",dst_path + _this.dbname+".tar.gz",function(e,r)
				{
					if(e)
					{
						callback(false);
					}
					else
					{
						_this.files.DeleteFolder(__dirname + "/dump/",function()
						{
							callback(true);
						});
					};					
				});
			};			
		});
	};

	Restore_BackUp(src_path,tarfile,new_dbname,callback)
	{
		var _this = this;
		_this.files.Decompress_Folder(src_path+ "/" + tarfile,src_path + "/dump/",function(r)
		{
			var comm = "mongorestore --db " + new_dbname + " " + src_path + "/dump/" + _this.dbname +  "/";
			_this.OS.exec(comm,function(err,stdo,stde)
			{
				if(err)
				{
					console.log(err);
					callback(false);
				}	
				else
				{
					_this.files.DeleteFolder(src_path + "/dump/",function()
					{
						callback(true);
					});
				};
			});
		});
		
	};

};

module.exports = Ernest_DB_BKP;