From 9b1372a29ada55b621de15a729a30e093090037a Mon Sep 17 00:00:00 2001
From: sminnee <sminnee@467b73ca-7a2a-4603-9d3b-597d59a354a9>
Date: Wed, 13 Oct 2010 04:24:00 +0000
Subject: [PATCH] ENHANCEMENT show all database systems we support, along with
 messages if the user cannot use them. Also allow 3rd parties to register
 their own database classes to appear in this list. (from r100696)

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/phpinstaller/trunk@112197 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 install.php | 77 ++++++++++++++++++++++++++++++-----------------------
 1 file changed, 44 insertions(+), 33 deletions(-)

diff --git a/install.php b/install.php
index be18a7b..1b245d9 100644
--- a/install.php
+++ b/install.php
@@ -50,41 +50,52 @@ if($envFileExists) {
 	}
 }
 
-// This is a listing of known external databases
-$otherDatabaseLocations = array(
-	'mssql' => array(
-		'dir' => 'mssql/code',
-		'class' => 'MSSQLDatabase',
-		'title' => 'SQL Server 2008'
-	),
-	'postgresql' => array(
-		'dir' => 'postgresql/code',
-		'class' => 'PostgreSQLDatabase',
-		'title' => 'PostgreSQL 8.3+'
-	),
-	'sqlite3' => array(
-		'dir' => 'sqlite3/code',
-		'class' => 'SQLite3Database',
-		'title' => 'SQLite 3'
-	),
-	'sqlitepdo' => array(
-		'dir' => 'sqlite3/code',
-		'class' => 'SQLitePDODatabase',
-		'title' => 'SQLite PDO'
-	)
-);
-
-// MySQL support comes out of the box with sapphire
-$foundDatabaseClasses = array('MySQLDatabase' => 'MySQL 4.1+');
 include_once('sapphire/dev/install/DatabaseConfigurationHelper.php');
-include_once('sapphire/dev/install/MySQLDatabaseConfigurationHelper.php');
+include_once('sapphire/dev/install/DatabaseAdapterRegistry.php');
 
-// Determine which external database modules are installed
-foreach($otherDatabaseLocations as $details) {
-	$helperPath = $details['dir'] . '/' . $details['class'] . 'ConfigurationHelper.php';
-	if(file_exists($helperPath)) {
-		$foundDatabaseClasses[$details['class']] = $details['title'];
-		include_once($helperPath);
+// Register the SilverStripe provided databases
+DatabaseAdapterRegistry::register(
+	'MySQLDatabase',
+	'MySQL 4.1+',
+	'sapphire/dev/install/MySQLDatabaseConfigurationHelper.php',
+	function_exists('mysql_connect'));
+DatabaseAdapterRegistry::register(
+	'MSSQLDatabase',
+	'SQL Server 2008',
+	'mssql/code/MSSQLDatabaseConfigurationHelper.php',
+	function_exists('mssql_connect') || function_exists('sqlsrv_connect'),
+	null,
+	'Neither the <a href="http://php.net/mssql">mssql</a> or <a href="http://www.microsoft.com/sqlserver/2005/en/us/PHP-Driver.aspx">sqlsrv</a> PHP extensions are available. Please install or enable one of them and refresh this page.');
+DatabaseAdapterRegistry::register(
+	'PostgreSQLDatabase',
+	'PostgreSQL 8.3+',
+	'postgresql/code/PostgreSQLDatabaseConfigurationHelper.php',
+	function_exists('pg_query'),
+	null,
+	'The <a href="http://php.net/pgsql">pgsql</a> PHP extension is not available. Please install or enable it and refresh this page.');
+DatabaseAdapterRegistry::register(
+	'SQLitePDODatabase',
+	'SQLite PDO',
+	'sqlite3/code/SQLitePDODatabaseConfigurationHelper.php',
+	in_array('sqlite', PDO::getAvailableDrivers()));
+DatabaseAdapterRegistry::register(
+	'SQLite3Database',
+	'SQLite 3',
+	'sqlite3/code/SQLite3DatabaseConfigurationHelper.php',
+	class_exists('SQLite3'),
+	'');
+
+// Discover any 3rd party ones
+DatabaseAdapterRegistry::autodiscover();
+
+// Determine which external database modules are USABLE
+foreach(DatabaseAdapterRegistry::adapters() as $class => $details) {
+	$databaseClasses[$class] = $details;
+	if(file_exists($details['helperPath'])) {
+		$databaseClasses[$class]['hasModule'] = true;
+		include_once($details['helperPath']);
+	} else {
+		$databaseClasses[$class]['hasModule'] = false;
 	}
 }