1: <?php
  2: /**
  3:  * Magento
  4:  *
  5:  * NOTICE OF LICENSE
  6:  *
  7:  * This source file is subject to the Open Software License (OSL 3.0)
  8:  * that is bundled with this package in the file LICENSE.txt.
  9:  * It is also available through the world-wide-web at this URL:
 10:  * http://opensource.org/licenses/osl-3.0.php
 11:  * If you did not receive a copy of the license and are unable to
 12:  * obtain it through the world-wide-web, please send an email
 13:  * to license@magentocommerce.com so we can send you a copy immediately.
 14:  *
 15:  * DISCLAIMER
 16:  *
 17:  * Do not edit or add to this file if you wish to upgrade Magento to newer
 18:  * versions in the future. If you wish to customize Magento for your
 19:  * needs please refer to http://www.magentocommerce.com for more information.
 20:  *
 21:  * @category    Mage
 22:  * @package     Mage_Install
 23:  * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
 24:  * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 25:  */
 26: 
 27: /**
 28:  * Database config installation block
 29:  *
 30:  * @author      Magento Core Team <core@magentocommerce.com>
 31:  */
 32: class Mage_Install_Block_Db_Main extends Mage_Core_Block_Template
 33: {
 34:     /**
 35:      * Array of Database blocks keyed by name
 36:      *
 37:      * @var array
 38:      */
 39:     protected $_databases       = array();
 40: 
 41:     /**
 42:      * Adding customized database block template for database model type
 43:      *
 44:      * @param  string $type database type
 45:      * @param  string $block database block type
 46:      * @param  string $template
 47:      * @return Mage_Install_Block_Db_Main
 48:      */
 49:     public function addDatabaseBlock($type, $block, $template)
 50:     {
 51:         $this->_databases[$type] = array(
 52:             'block'     => $block,
 53:             'template'  => $template,
 54:             'instance'  => null
 55:         );
 56: 
 57:         return $this;
 58:     }
 59: 
 60:     /**
 61:      * Retrieve database block by type
 62:      *
 63:      * @param  string $type database model type
 64:      * @return bool | Mage_Core_Block_Template
 65:      */
 66:     public function getDatabaseBlock($type)
 67:     {
 68:         $block = false;
 69:         if (isset($this->_databases[$type])) {
 70:             if ($this->_databases[$type]['instance']) {
 71:                 $block = $this->_databases[$type]['instance'];
 72:             } else {
 73:                 $block = $this->getLayout()->createBlock($this->_databases[$type]['block'])
 74:                     ->setTemplate($this->_databases[$type]['template'])
 75:                     ->setIdPrefix($type);
 76:                 $this->_databases[$type]['instance'] = $block;
 77:             }
 78:         }
 79:         return $block;
 80:     }
 81: 
 82:     /**
 83:      * Retrieve database blocks
 84:      *
 85:      * @return array
 86:      */
 87:     public function getDatabaseBlocks()
 88:     {
 89:         $databases = array();
 90:         foreach ($this->_databases as $type => $blockData) {
 91:             $databases[] = $this->getDatabaseBlock($type);
 92:         }
 93:         return $databases;
 94:     }
 95: 
 96:     /**
 97:      * Retrieve configuration form data object
 98:      *
 99:      * @return Varien_Object
100:      */
101:     public function getFormData()
102:     {
103:         $data = $this->getData('form_data');
104:         if (is_null($data)) {
105:             $data = Mage::getSingleton('install/session')->getConfigData(true);
106:             if (empty($data)) {
107:                 $data = Mage::getModel('install/installer_config')->getFormData();
108:             }
109:             else {
110:                 $data = new Varien_Object($data);
111:             }
112:             $this->setFormData($data);
113:         }
114:         return $data;
115:     }
116: 
117: }
118: