cakephp check database configuration exist and connection alive valid

Keyword
Check cakephp database configuration exist
Check cakephp database can be connect

In cakephp you need to configure the connection
The configuration file was in app/config/database.php

Inside the file, you can see 2 variable which is 'default' and 'test'

By default is 'default' but if you want to use 'test' in the controller for example, you need to call it like this

$this->Mmodel->useDbConfig = 'test';
 

Problem arise is, can we connect to 'test' without problem?

So, here is the code I made. Been googling it and quite hard to found the solution, thus I'm putting this in my blog. lol...

This code will check
- Does the configuration 'test' exist
- If the configuration exist, does the database connection valid

If these 2 condition is pass, you can only have SQL Syntax Error like selecting table that does not exist

So here is the code (its free)

//Checking is done by connecting with the  database
if (class_exists('DATABASE_CONFIG')){
    $dbConfigName1 = 'test'; //<-- PUT YOUR DATABASE CONFIG VARIABLE NAME HERE

    $dbConfig1 = new DATABASE_CONFIG();
    //pr( $dbConfig1);                    

    if( isset( $dbConfig1->$dbConfigName1)){                       

        //Now check wether the database configuration, its alive!
        //pr( $dbConfig1->$dbConfigName1);
        $dbTemp1 =& ConnectionManager::getDataSource($dbConfigName1);

        if( $dbTemp1->isConnected() == true){

            //Means database exist and you can use it
            echo "DATABASE CONFIG '$dbConfigName1' EXIST AND MANAGE TO CONNECT";
        }
        else{

            //Database configuration exist, but cannot connect to the database
            echo "DATABASE CONFIG '$dbConfigName1' EXIST BUT FAILED TO CONNECT";
        }
    }
    else{

        //The database configuration does not exist
        echo "HAS NO DATABASE CONFIGURATION WITH NAME '$dbConfigName1'";
    }
}
else{

    //The database.php file not even exist. How can this be? IMPOSIBIEBERBEL!
    echo "CANNOT FIND THE 'database.php' CONFIGURATION FILE";
}

Reference
http://bakery.cakephp.org/articles/T0aD/2009/07/08/handle-database-connection-errors
http://debuggable.com/posts/handling-database-connection-errors-in-cakephp:480f4dd5-9570-421a-a04d-43cdcbdd56cb