Hệ thống quản lý trường học bằng PHP / MySQLi
1 <?php
2 /*
3 Reportico - PHP Reporting Tool
4 Copyright (C) 2010-2014 Peter Deed
5
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19
20 * File: swmodify.php
21 *
22 * Base class for handling generic updating functionality
23 * to the database where details of an operation, a data view name
24 * a key and values are passed within the URL
25 *
26 * @link http://www.reportico.org/
27 * @copyright 2010-2014 Peter Deed
28 * @author Peter Deed <info@reportico.org>
29 * @package Reportico
30 * @license - http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
31 * @version $Id: swmodify.php,v 1.8 2014/05/17 15:12:31 peter Exp $
32 */
33
34 class reportico_db_engine
35 {
36 public $pdo;
37 public $stmt;
38 public $last_sql;
39 public $errorno;
40 public $errormsg;
41 public $errortext;
42
43 function __construct($in_pdo)
44 {
45 $this->pdo = $in_pdo;
46 }
47
48 function executeSQL( $in_sql, $no_rows_is_error = false )
49 {
50 $this->last_sql = $in_sql;
51 $this->stmt = $this->pdo->query($in_sql);
52 if ( !$this->stmt )
53 {
54 $this->storeErrorMessage();
55 return ( $this->stmt);
56 }
57
58 if ( $no_rows_is_error )
59 {
60 if ( $this->getRowsAffected() == 0 )
61 {
62 $this->errorno = "100";
63 $this->errormsg = "Warning - No data was affected by the operation";
64 $this->last_sql = "";
65 return false;
66 }
67
68 }
69 return $this->stmt;
70 }
71
72 function fetch()
73 {
74 $result = $this->stmt->fetch();
75 return $result;
76 }
77
78 function close()
79 {
80 $this->stmt = null;
81 }
82
83 function storeErrorMessage()
84 {
85 $arr = $this->pdo->errorInfo();
86 $this->errorno = $arr[0];
87 $this->errormsg = $arr[2];
88 }
89
90 function getErrorMessage($add_sql = true)
91 {
92 return "Error ". $this->errorno. " - <BR>".$this->errormsg."<BR><BR>".$this->last_sql;
93 }
94
95 function showPDOError( )
96 {
97 $info = $this->pdo->errorInfo();
98 $msg = "Error ".$info[1]."<BR>".
99 $info[2];
100 trigger_error("$msg", E_USER_NOTICE);
101 }
102
103 function getRowsAffected( )
104 {
105 return $this->stmt->rowCount();
106 }
107
108 function rpt_setDirtyRead()
109 {
110 $sql = "SET ISOLATION TO DIRTY READ";
111 return $this->pdo->Execute($sql);
112 }
113
114
115 function perform_project_modifications ($project)
116 {
117 $filename = find_best_location_in_include_path( "projects/".$project."/modification_rules.php");
118 $return_status = array (
119 "errstat" => 0,
120 "msgtext" => "Modification sucessful"
121 );
122
123 if ( is_file ( $filename ) )
124 {
125 require_once($filename);
126 custom_project_modifications(&$this, $return_status);
127 }
128 else
129 {
130 $return_status["errstat"] = -1;
131 $return_status["msgtext"] = "No modifcation rules were found";
132 }
133
134 return $return_status;
135 }
136
137 }
138 ?>
