(no commit message)

[shipsimu.git] / inc / database.php

diff --git a/inc/database.php b/inc/database.php
new file mode 100644 (file)
index 0000000..b429a39
--- /dev/null
+++ b/inc/database.php
@@ -0,0 +1,90 @@
+<?php
+/**
+ * Initializes the database layer
+ *
+ * @author             Roland Haeder <webmaster@ship-simu.org>
+ * @version            0.0
+ * @copyright  Copyright(c) 2007, 2008 Roland Haeder, this is free software
+ * @license            GNU GPL 3.0 or any newer version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// Initialize the layer
+$layer = null;
+
+// Is the type defined?
+if (!defined('_DB_TYPE')) {
+       // Abort here
+       ApplicationEntryPoint::app_die("[Main:] Please define a database type first!<br />
+E.g.:<pre>&#36;GLOBALS[&#39;cfg&#39]->defineDatabaseType(&quot;local&quot;);</pre>
+This will choose the local-file-based database type (layer)");
+}
+
+// Generate FQFN for the database layer
+$INC = sprintf("%sinc/database/lib-%s%s", PATH, _DB_TYPE, FrameworkConfiguration::getInstance()->readConfig("php_extension"));
+
+// Load the database layer include
+if ((file_exists($INC)) && (is_file($INC)) && (is_readable($INC))) {
+       // Load the layer
+       require_once($INC);
+} else {
+       // Layer is missing!
+       ApplicationEntryPoint::app_die(sprintf("[Main:] Database layer is missing! (%s) -&gt; R.I.P.",
+               _DB_TYPE
+       ));
+}
+
+// Clean it up
+unset($INC);
+
+// Prepare database instance
+try {
+       $db = DatabaseConnection::createDatabaseConnection(DebugMiddleware::getInstance(), $layer);
+} catch (NullPointerException $e) {
+       ApplicationEntryPoint::app_die(sprintf("[Main:] Datenbank-System nicht initialisiert. Reason: <strong>%s</strong><br />\n",
+               $e->getMessage()
+       ));
+} catch (InvalidDirectoryResourceException $e) {
+       ApplicationEntryPoint::app_die(sprintf("[Main:] Datenbank-System nicht initialisiert. Reason: <strong>%s</strong><br />\n",
+               $e->getMessage()
+       ));
+} catch (PathIsEmptyException $e) {
+       ApplicationEntryPoint::app_die(sprintf("[Main:] Datenbank-System nicht initialisiert. Reason: <strong>%s</strong><br />\n",
+               $e->getMessage()
+       ));
+} catch (PathIsNoDirectoryException $e) {
+       ApplicationEntryPoint::app_die(sprintf("[Main:] Datenbank-System nicht initialisiert. Reason: <strong>%s</strong><br />\n",
+               $e->getMessage()
+       ));
+} catch (PathReadProtectedException $e) {
+       ApplicationEntryPoint::app_die(sprintf("[Main:] Datenbank-System nicht initialisiert. Reason: <strong>%s</strong><br />\n",
+               $e->getMessage()
+       ));
+} catch (DirPointerNotOpenedException $e) {
+       ApplicationEntryPoint::app_die(sprintf("[Main:] Datenbank-System nicht initialisiert. Reason: <strong>%s</strong><br />\n",
+               $e->getMessage()
+       ));
+}
+
+// Datenbankobjekt debuggen
+if (defined('DEBUG_DATABASE_OBJ')) {
+       DebugMiddleware::getInstance()->output(sprintf("Die Datenbank-Schicht sieht wie folgt aus:<br />
+<pre>%s</pre>\n",
+               print_r($db, true)
+       ));
+}
+
+// [EOF]
+?>