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diff --git a/muggle-plugin/mg_mysql.h b/muggle-plugin/mg_mysql.h
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+/*! 
+ * \file   mg_mysql.h
+ * \brief  A capsule around MySql database access
+ *
+ * \version $Revision: 1.2 $
+ * \date    $Date: 2005-02-10 17:42:54 +0100 (Thu, 10 Feb 2005) $
+ * \author  Ralf Klueber, Lars von Wedel, Andreas Kellner, Wolfgang Rohdewald
+ * \author  Responsible author: $Author: LarsAC $
+ */
+
+#ifndef __MG_MYSQL_H
+#define __MG_MYSQL_H
+
+#include <string>
+#include <mysql/mysql.h>
+
+using namespace std;
+
+void database_end();		// must be done explicitly
+void set_datadir(char *datadir);
+
+/*!
+ * \brief an abstract database class
+ * 
+ */
+class mgmySql
+{
+ public:
+
+  /*! \brief default constructor 
+   */
+  mgmySql( );
+
+  ~mgmySql();
+
+  /*! 
+   * \brief helper function to execute queries
+   *
+   */
+  MYSQL_RES* exec_sql( const string query);
+
+  /*!
+   * \brief escape arguments to be contained in a query
+   */
+  string sql_string( string s );
+
+  char* sql_Cstring( const string s,char *buf=0);
+  char* sql_Cstring( const char *s,char *buf=0);
+
+  string get_col0( const string query);
+  
+/*! \brief executes a query and returns the integer value from
+ * the first column in the first row. The query shold be a COUNT query
+ * returning only one row.
+ * \param query the SQL query to be executed
+ */
+  unsigned long exec_count (string query);
+
+  long thread_id() { return mysql_thread_id(m_db);}
+  long affected_rows() { return mysql_affected_rows(m_db);}
+  bool ServerConnected() const;
+  bool Connected() const;
+  bool HasFolderFields() const { return m_hasfolderfields;}
+  void Connect();
+  //! \brief create database and tables
+  void Create();
+  void FillTables();
+  void CreateFolderFields();
+ private:
+  MYSQL *m_db;
+  bool m_database_found;
+  bool m_hasfolderfields;
+  bool sql_query(const char *query);
+};
+
+#endif