Registering Zend Database Adapter in Registry

Question

I am looking to register a reference to the main Database Adapter in the Registry during Bootstrapping so it can be used elsewhere in my site (specifically the Authorisation

Answer 1

Your missing the best thing :)

If you use the Zend_Db_Table models (you should be) etc then you can set up a default adaptor - this way when you instantiate a model the DB connection it taken care off - this way you dont really need to save it in the registry or bother about connection before running a query through the model.

I do save it in the registry for later use if needed though - but I may remove this

protected function _initDB()
{
    // Check that the config contains the correct database array.
    if ($this->_config->db) {

        // Instantiate the DB factory
        $dbAdapter = Zend_Db::factory($this->_config->db);

        // Set the DB Table default adaptor for auto connection in the models
        Zend_Db_Table::setDefaultAdapter($dbAdapter);

        // Add the DB Adaptor to the registry if we need to call it outside of the modules.
        Zend_Registry::set('dbAdapter', $dbAdapter);
    }
}

Answer 2

Here is what i do:

Inside the bootstrap:

define('CONFIG_FILE', '../config/general.ini');
define('APP_MODE', 'development');

Inside the Initializer:

 /**
 * Initialize data bases
 * 
 * @return void
 */
public function initDb ()
{
    $options = Zend_Registry::get('conf');
    $db = Zend_Db::factory($options->database);
    $db->query(new Zend_Db_Expr('SET NAMES utf8'));
    Zend_Registry::set('db', $db);
}

public function initConfig ()
{
    if (file_exists(CONFIG_FILE) && is_readable(CONFIG_FILE)) {
        $conf = new Zend_Config_Ini(CONFIG_FILE, APP_MODE);
        Zend_Registry::set('conf', $conf);
    } else {
        throw new Zend_Config_Exception('Unable to load config file');
    }
}

And finaly my config file looks like this:

[production]
database.adapter         = pdo_Mysql
database.params.host     = db.example.com
database.params.username = dbuser
database.params.password = secret
database.params.dbname   = dbname

; Overloaded configuration from production

[development : production]
database.params.host     = localhost
database.params.username = root
database.params.password = 

Take a look at:

• Zend_Db::Factory()
• Zend_Config_Ini
• Zend_Registry

Answer 3

My 2 cents...

How to grab the default DB Adapter:

From Bootstrap:

<?php    
$dbResource = $this->getPluginResource('db');
db = $dbResource->getDbAdapter();
var_dump($db);
?>

From a Controller there are two methods:

<?php
// Method 1
$bootstrap = $this->getInvokeArg('bootstrap');
$dbResource = $bootstrap->getPluginResource('db');
$dbAdapter = $dbResource->getDbAdapter();
var_dump($dbAdapter);

// Method 2
$dbAdapter = Zend_Db_Table::getDefaultAdapter();
var_dump($dbAdapter);
?>