2 /**************************************************************************
3 ** (c) Copyright 2002, Andromeda Technology & Automation
4 ** This is free software; you can redistribute it and/or modify it under the
5 ** terms of the GNU General Public License, see the file COPYING.
6 ***************************************************************************
7 ** MODULE INFORMATION *
8 ***********************
9 ** FILE NAME : database.cpp
10 ** SYSTEM NAME : Gnucomo - Gnu Computer Monitoring
11 ** VERSION NUMBER : $Revision: 1.10 $
13 ** DESCRIPTION : Implementation of the gnucomo database classes
18 ***************************************************************************
19 ** ADMINISTRATIVE INFORMATION *
20 ********************************
21 ** ORIGINAL AUTHOR : Arjen Baart - arjen@andromeda.nl
22 ** CREATION DATE : Sep 10, 2002
23 ** LAST UPDATE : Aug 17, 2003
25 **************************************************************************/
27 /*****************************
28 $Log: database.cpp,v $
29 Revision 1.10 2003-12-03 08:23:17 arjen
30 Write messages to the log stream instead of cout.
32 Revision 1.9 2003/08/17 11:39:56 arjen
33 Changed the gnucomo_database class to the new PostgreSQL
36 Revision 1.8 2003/07/31 15:44:02 arjen
39 Revision 1.7 2003/02/19 12:07:55 arjen
40 Use the SQL function currval() to obtain the identification number
41 of the most recently created notification.
43 Revision 1.6 2003/02/05 09:33:42 arjen
44 gnucomo_database::new_notification() retruns the id number of the
45 newly created notification record.
47 Revision 1.5 2003/01/20 07:31:42 arjen
48 Removed some debug output.
50 Revision 1.4 2003/01/18 08:52:32 arjen
51 New C++ function: gnucomo_database::new_notification()
53 Revision 1.3 2002/11/09 08:04:27 arjen
54 Added a reference to the GPL
56 Revision 1.2 2002/11/04 10:13:36 arjen
57 Use proper namespace for iostream classes
59 Revision 1.1 2002/10/05 10:25:49 arjen
60 Creation of gcm_input and a first approach to a web interface
62 *****************************/
64 static const char *RCSID = "$Id: database.cpp,v 1.10 2003-12-03 08:23:17 arjen Exp $";
70 extern std::ostream *log;
72 /*=========================================================================
73 ** NAME : gnucomo_database
74 ** SYNOPSIS : gnucomo_database(gnucomo_config &c);
76 ** RETURN VALUE : Database constructor. Establishes a connection with
77 ** the database server.
85 ** LAST MODIFIED : Aug 17, 2003
86 **=========================================================================
89 static int gdb_refcount = 0;
91 gnucomo_database::gnucomo_database(gnucomo_config *c)
95 dbconn = new pqxx::Connection(cfg->Database());
97 if (!dbconn->is_open())
99 std::cerr << "Connection to database failed.\n";
103 // Create the transaction object
105 dbxact = new pqxx::Transaction(*dbconn, "GnuCoMo");
110 gnucomo_database::gnucomo_database(const gnucomo_database &gdb)
117 void gnucomo_database::operator = (const gnucomo_database &gdb)
124 // A destructor must Commit the transaction and
125 // destroy the transaction before destroying the
127 // The connection can only be destroyed by the last
130 gnucomo_database::~gnucomo_database()
132 if (--gdb_refcount == 0 && dbconn != 0 && dbxact != 0)
142 /*=========================================================================
144 ** SYNOPSIS : String gnucomo_database::find_host(String hostname);
146 ** RETURN VALUE : Find a hostname in the 'object' table of the gnucomo database
147 ** and return its object id.
148 ** Return an empty string as objectid if the hostname is
157 ** LAST MODIFIED : Aug 15, 2003
158 **=========================================================================
161 String gnucomo_database::find_host(const String hostname)
164 String check_host("select objectid from object where ");
166 check_host += "objectname = '";
167 check_host += hostname;
170 if (Query(check_host) > 0)
172 objectid = Field(0, "objectid");
179 * Create a new notification with an action_user and return the notification id
182 String gnucomo_database::new_notification(String objectid, String issue, String remark)
192 *log << "Creating notification for " << issue << ": " << remark << "\n";
194 qry = "select type_of_issueid, suggested_priority from type_of_issue where name='";
198 issueid = Field(0, "type_of_issueid");
199 insertion = "insert into notification (objectid, type_of_issueid, timestamp, ";
200 insertion += " statuscode, priority) values ('";
201 insertion += objectid + "', '";
202 insertion += issueid + "', '" + now.format("%Y-%m-%d %T") + "', 'new', '";
203 insertion += Field(0, "suggested_priority") + "')";
207 Query("select currval('notification_notificationid_seq')");
208 notif_id = Field(0, "currval");
212 insertion = "insert into action_user (actionid, username, notificationid,";
213 insertion += " timestamp, statuscode, remarks) values ('1', 'gnucomo', '";
214 insertion += notif_id + "', '" + now.format("%Y-%m-%d %T") + "', 'new', '";
215 insertion += remark + "')";
221 std::cerr << "Error inserting notification.\n";
226 std::cerr << "DATABASE ERROR: Type of issue " << issue << " not found.\n";