Added PostgreSQL DAL class.

Updated configure.ac to include PostgreSQL & MySQL. (MySQL needs to be adjusted, and it seems that using --with-sqlite will drop out of configure after check for atexit. I dont know why, as i didn't touch the SQLite stuff) :)

6 files changed, 292 insertions, 22 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index 71f67e5e..33e18365 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -34,8 +34,6 @@ tmwserv_SOURCES = main.cpp \
 		  dal/dataprovider.cpp \
 		  dal/dataproviderfactory.h \
 		  dal/dataproviderfactory.cpp \
-		  dal/sqlitedataprovider.h \
-		  dal/sqlitedataprovider.cpp \
 		  dal/recordset.h \
 		  dal/recordset.cpp \
 		  dal/dalexcept.h \
@@ -48,26 +46,24 @@ tmwserv_SOURCES = main.cpp \
 		  utils/logger.h \
 		  utils/logger.cpp
 
-#		  dal/mysqldataprovider.h
-#		  dal/mysqldataprovider.cpp
+if BUILD_SQLITE
+tmwserv_SOURCES += dal/sqlitedataprovider.h \
+		   dal/sqlitedataprovider.cpp
+endif
 
-# Obsoleted by utils/logger.*
-#
-#		  log.h
-#		  log.cpp
+if BUILD_POSTGRE
+tmwserv_SOURCES += dal/pqdataprovider.h \
+		   dal/pqdataprovider.cpp
+endif
 
-# Obsoleted by DAL.
-#
-#if BUILD_SQLITE
-#tmwserv_SOURCES += sqlite/SQLiteWrapper.cpp \
-#	           sqlite/SQLiteWrapper.h \
-#		   sqlitestorage.cpp \
-#		   sqlitestorage.h
-#endif
+if BUILD_MYSQL
+tmwserv_SOURCES += dal/mysqldataprovider.h \
+		   dal/mysqldataprovider.cpp
+endif
 
 # set the include path found by configure
-INCLUDES= $(all_includes) $(SQLITE_CFLAGS)
-LIBS = $(SQLITE_LIBS)
+INCLUDES= $(all_includes) 
+LIBS = $(SQLITE_LIBS) $(MYSQL_LIBS) $(POSTGRE_LIBS)
 
 # the library search path.
 tmwserv_LDFLAGS = $(all_libraries) \
@@ -75,7 +71,9 @@ tmwserv_LDFLAGS = $(all_libraries) \
 				  `pkg-config --libs libxml-2.0` \
 				  -lphysfs \
 				  -lcrypto
-tmwserv_CXXFLAGS = -g -Wall `sdl-config --cflags` `pkg-config --cflags libxml-2.0` -fno-inline $(SCRIPT_CFLAGS)
+tmwserv_CXXFLAGS = -g -Wall `sdl-config --cflags` `pkg-config --cflags libxml-2.0` -fno-inline $(SCRIPT_CFLAGS) $(POSTGRE_CFLAGS) $(SQLITE_CFLAGS)
+
 #tmwserv_LDADD = $(LIBSDL_LIBS) -lphysfs
 tmwserv_LDADD = $(SCRIPT_LIBS)
 tmwserv_TARGET = ../tmwserv
+
diff --git a/src/dal/dataprovider.h b/src/dal/dataprovider.h
index 4e897b3c..a3ea8cc5 100644
--- a/src/dal/dataprovider.h
+++ b/src/dal/dataprovider.h
@@ -42,7 +42,8 @@ namespace dal
  */
 typedef enum {
     DB_BKEND_MYSQL,
-    DB_BKEND_SQLITE
+    DB_BKEND_SQLITE,
+    DB_BKEND_POSTGRESQL
 } DbBackends;
 
 
diff --git a/src/dal/dataproviderfactory.cpp b/src/dal/dataproviderfactory.cpp
index 7cd44e29..f0f951dd 100644
--- a/src/dal/dataproviderfactory.cpp
+++ b/src/dal/dataproviderfactory.cpp
@@ -26,10 +26,18 @@
 #ifdef MYSQL_SUPPORT
 #include "mysqldataprovider.h"
 #else
+
 #ifdef SQLITE_SUPPORT
 #include "sqlitedataprovider.h"
 #else
+
+#ifdef POSTGRE_SUPPORT
+#include "pqdataprovider.h"
+#else
+
 #error "Database not specified"
+
+#endif
 #endif
 #endif
 
@@ -76,6 +84,11 @@ DataProviderFactory::createDataProvider(void)
     return provider;
 #endif
 
+#ifdef POSTGRE_SUPPORT
+    PqDataProvider *provider = new PqDataProvider;
+    return provider;
+#endif
+
     // a data provider cannot be created as the server has been compiled
     // without support for any database.
     throw std::runtime_error("missing database backend support.");
diff --git a/src/dal/pqdataprovider.cpp b/src/dal/pqdataprovider.cpp
new file mode 100644
index 00000000..e39665ef
--- /dev/null
+++ b/src/dal/pqdataprovider.cpp
@@ -0,0 +1,151 @@
+/*
+ *  The Mana World Server
+ *  Copyright 2004 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World  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 2 of the License, or any later version.
+ *
+ *  The Mana  World 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 The Mana  World; if not, write to the  Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ *  $Id$
+ */
+
+#include "pqdataprovider.h"
+
+namespace tmwserv
+{
+namespace dal
+{
+
+/**
+ * Constructor
+ */
+PqDataProvider::PqDataProvider(void)
+    throw()
+{
+}
+
+/**
+ * Destructor
+ */
+PqDataProvider::~PqDataProvider(void)
+    throw()
+{
+    disconnect();
+}
+
+/**
+ * Get the database backend name.
+ */
+DbBackends
+PqDataProvider::getDbBackend(void) const
+    throw()
+{
+    return DB_BKEND_POSTGRESQL;
+}
+
+/**
+ * Create a connection to the database.
+ */
+void
+PqDataProvider::connect(const std::string& dbName,
+			const std::string& userName,
+			const std::string& password)
+{
+    // Create string to pass to PQconnectdb
+    std::string connStr = "dbname = " + dbName + " "; // database name
+    if (userName != "")
+	connStr += "user = " + userName + " "; // username
+    if (password != "")
+	connStr += "password = " + password; // password
+
+    // Connect to database
+    mDb = PQconnectdb(connStr.c_str());
+
+    if (PQstatus(mDb) != CONNECTION_OK)
+    {
+	// TODO: Postge needs to be cleaned up after throwing the exception
+	// PQfinish(mDb);
+	throw DbConnectionFailure(PQerrorMessage(mDb));
+    }
+
+    mIsConnected = true;
+}
+
+/**
+ * Execute a SQL query.
+ */
+const RecordSet&
+PqDataProvider::execSql(const std::string& sql,
+			const bool refresh)
+{
+    if (!mIsConnected) {
+	throw std::runtime_error("not connected to database");
+    }
+
+    if (refresh || (sql != mSql)) {
+	mRecordSet.clear();
+
+	// execute the query
+	PGresult *res;
+
+	res = PQexec(mDb, sql.c_str());
+	if (PQresultStatus(res) != PGRES_COMMAND_OK) {
+	    PQclear(res);
+	    throw DbSqlQueryExecFailure(PQerrorMessage(mDb));
+	}
+
+	// get field count
+	unsigned int nFields = PQnfields(res);
+
+	// fill column names
+	Row fieldNames;
+	for (unsigned int i = 0; i < nFields; i++) {
+	    fieldNames.push_back(PQfname(res, i));
+	}
+	mRecordSet.setColumnHeaders(fieldNames);
+
+	// fill rows
+	for (unsigned int r = 0; r < PQntuples(res); r++) {
+	    Row row;
+
+	    for (unsigned int i = 0; i < nFields; i++) {
+		row.push_back(PQgetvalue(res, r, i));
+	    }
+
+	    mRecordSet.add(row);
+	}
+
+	// clear results
+	PQclear(res);
+    }
+}
+
+/**
+ * Close connection to databse.
+ */
+void
+PqDataProvider::disconnect(void)
+{
+    if (!mIsConnected) {
+	return;
+    }
+
+    // finish up with Postgre
+    PQfinish(mDb);
+
+    mIsConnected = false;
+}
+
+} // namespace dal
+} // namespace tmwserv
diff --git a/src/dal/pqdataprovider.h b/src/dal/pqdataprovider.h
new file mode 100644
index 00000000..1e8beedc
--- /dev/null
+++ b/src/dal/pqdataprovider.h
@@ -0,0 +1,107 @@
+/*
+ *  The Mana World Server
+ *  Copyright 2004 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World  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 2 of the License, or any later version.
+ *
+ *  The Mana  World 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 The Mana  World; if not, write to the  Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ *  $Id$
+ */
+
+#ifndef PQDATAPROVIDER_H
+#define PQDATAPROVIDER_H
+
+#include <string>
+#include "dataprovider.h"
+#include "libpq-fe.h"
+
+namespace tmwserv
+{
+namespace dal
+{
+
+class PqDataProvider : public DataProvider
+{
+ public:
+    /**
+     * Constructor
+     */
+    PqDataProvider()
+	throw();
+    
+    /**
+     * Destructor
+     */
+    ~PqDataProvider()
+	throw();
+    
+    /**
+     * Get name of the database backend
+     *
+     * @return the database backend name
+     */
+    DbBackends
+    getDbBackend(void) const
+	throw();
+    
+    /**
+     * Create a connection to the database.
+     *
+     * @param dbName the database name.
+     * @param userName the user name.
+     * @param password the user password.
+     *
+     * @exception DbConnectionFailure if unsuccessful connection.
+     */
+    void
+    connect(const std::string& dbName,
+	    const std::string& userName,
+	    const std::string& password);
+    
+    
+    /**
+     * Execute a SQL query.
+     *
+     * @param sql the SQL query.
+     * @param refresh if true, refresh the cache (default = false).
+     *
+     * @return a recordset.
+     *
+     * @exception DbSqlQueryExecFailure if unsuccessful execution.
+     * @exception std::runtime_error if trying to query a closed database.
+     */
+    const RecordSet&
+    execSql(const std::string& sql,
+	    const bool refresh = false);
+    
+    
+    /**
+     * Close the connection to the database.
+     *
+     * @exception DbDisconnectionFailure if unsuccessful disconnection.
+     */
+    void
+    disconnect(void);
+
+ protected:
+    PGconn *mDb; /**<  Database connection handle */
+
+};
+
+
+}
+}
+
+#endif
diff --git a/src/dalstoragesql.h b/src/dalstoragesql.h
index 3de9b33f..1e24f09e 100644
--- a/src/dalstoragesql.h
+++ b/src/dalstoragesql.h
@@ -25,8 +25,8 @@
 #define _TMWSERV_DALSTORAGE_SQL_H_
 
 
-#if !defined (MYSQL_SUPPORT) && !defined (SQLITE_SUPPORT)
-#error "no database backend defined"
+#if !defined (MYSQL_SUPPORT) && !defined (SQLITE_SUPPORT) && !defined (POSTGRE_SUPPORT)
+#error "(dalstorage.h) no database backend defined"
 #endif