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[core.git] / inc / database.php
1 <?php
2 /**
3  * Initializes the database layer
4  *
5  * @author              Roland Haeder <webmaster@ship-simu.org>
6  * @version             0.0.0
7  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, this is free software
8  * @license             GNU GPL 3.0 or any newer version
9  * @link                http://www.ship-simu.org
10  *
11  * This program is free software: you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation, either version 3 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program. If not, see <http://www.gnu.org/licenses/>.
23  */
24
25 // Initialize layer
26 $layerInstance = null;
27
28 // Get config instance
29 $cfg = FrameworkConfiguration::getInstance();
30
31 // Generate FQFN for the database layer
32 $INC = sprintf("%sinc/database/lib-%s.php",
33         $cfg->readConfig('base_path'),
34         $cfg->readConfig('db_type')
35 );
36
37 // Load the database layer include
38 if ((file_exists($INC)) && (is_file($INC)) && (is_readable($INC))) {
39         // Load the layer
40         require_once($INC);
41 } else {
42         // Layer is missing!
43         ApplicationEntryPoint::app_die(sprintf("[Main:] Database layer is missing! (%s) -&gt; R.I.P.",
44                 $cfg->readConfig('db_type')
45         ));
46 }
47
48 // Clean it up
49 unset($INC);
50
51 // Prepare database instance
52 try {
53         $db = DatabaseConnection::createDatabaseConnection(DebugMiddleware::getInstance(), $layerInstance);
54 } catch (NullPointerException $e) {
55         ApplicationEntryPoint::app_die(sprintf("[Main:] Database sub-system not initialized for the follwing reason: <span class=\"exception_reason\">%s</span><br />\n",
56                 $e->getMessage()
57         ));
58 } catch (InvalidDirectoryResourceException $e) {
59         ApplicationEntryPoint::app_die(sprintf("[Main:] Database sub-system not initialized for the follwing reason: <span class=\"exception_reason\">%s</span><br />\n",
60                 $e->getMessage()
61         ));
62 } catch (PathIsEmptyException $e) {
63         ApplicationEntryPoint::app_die(sprintf("[Main:] Database sub-system not initialized for the follwing reason: <span class=\"exception_reason\">%s</span><br />\n",
64                 $e->getMessage()
65         ));
66 } catch (PathIsNoDirectoryException $e) {
67         ApplicationEntryPoint::app_die(sprintf("[Main:] Database sub-system not initialized for the follwing reason: <span class=\"exception_reason\">%s</span><br />\n",
68                 $e->getMessage()
69         ));
70 } catch (PathReadProtectedException $e) {
71         ApplicationEntryPoint::app_die(sprintf("[Main:] Database sub-system not initialized for the follwing reason: <span class=\"exception_reason\">%s</span><br />\n",
72                 $e->getMessage()
73         ));
74 } catch (DirPointerNotOpenedException $e) {
75         ApplicationEntryPoint::app_die(sprintf("[Main:] Database sub-system not initialized for the follwing reason: <span class=\"exception_reason\">%s</span><br />\n",
76                 $e->getMessage()
77         ));
78 }
79
80 // Is the app variable there and valid?
81 if (is_object($app)) $app->setDatabaseInstance($db);
82
83 // Datenbankobjekt debuggen
84 if (defined('DEBUG_DATABASE_OBJ')) {
85         DebugMiddleware::getInstance()->output(sprintf("The database sub-system does now look like this:<br />
86 <pre>%s</pre>\n",
87                 print_r($db, true)
88         ));
89 }
90
91 // [EOF]
92 ?>