initial import

git-svn-id: file:///var/lib/svn/phpfspot/trunk@2 fa6a889d-dae6-447d-9e79-4ba9a3039384

1 files changed, 247 insertions, 0 deletions

diff --git a/phpfspot_db.php b/phpfspot_db.php
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+<?php
+
+/***************************************************************************
+ *
+ * Copyright (c) by Andreas Unterkircher, unki@netshadow.at
+ * All rights reserved
+ *
+ *  This program 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
+ *  (at your option) any later version.
+ *
+ *  This program 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 this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ***************************************************************************/
+
+/* from pear "MDB2" package. use "pear install MDB2" if you don't have this! */
+require_once('MDB2.php');
+
+class PHPFSPOT_DB {
+
+   private $db;
+   private $db_path;
+   private $parent;
+   private $is_connected;
+   private $last_error;
+
+   /**
+    * PHPFSPOT_DB class constructor
+    *
+    * This constructor initially connect to the database.
+    */
+   public function __construct($parent, $db_path)
+   {
+      $this->parent = $parent;
+      $this->db_path = $db_path;
+
+      /* We are starting disconnected */
+      $this->setConnStatus(false);
+
+      /* Connect to MySQL Database */
+      $this->db_connect();
+
+   } // __construct()
+	 
+   /**
+    * PHPFSPOT_DB class deconstructor
+    *
+    * This destructor will close the current database connection.
+    */ 
+   public function __destruct()
+   {
+      $this->db_disconnect();
+
+   } // _destruct()
+
+   /**
+    * PHPFSPOT_DB database connect
+    *
+    * This function will connect to the database via MDB2
+    */
+   private function db_connect()
+   {
+      if(($this->db = sqlite3_open($this->db_path)) === false) {
+
+         $this->throwError("Unable to connect to database:" . $this->getLastError());
+         $this->setConnStatus(false);
+      }
+
+      $this->setConnStatus(true);
+
+   } // db_connect()
+
+   /**
+    * PHPFSPOT_DB database disconnect
+    *
+    * This function will disconnected an established database connection.
+    */
+   private function db_disconnect()
+   {
+      if($this->getConnStatus())
+         sqlite3_close($this->db);
+
+   } // db_disconnect()
+
+   /**
+    * PHPFSPOT_DB database query
+    *
+    * This function will execute a SQL query and return the result as
+    * object.
+    */
+   public function db_query($query = "")
+   {
+      if($this->getConnStatus()) {
+
+         if(($result = sqlite3_query($this->db, $query)) === false)
+            $this->trowError($this->getLastError());
+	
+         return $result;
+      }
+      else 
+         $this->ThrowError("Can't execute query - we are not connected!");
+
+   } // db_query()
+
+   public function db_fetch_object(&$resource)
+   {
+      return sqlite3_fetch_array($resource);
+
+   } // db_fetch_object
+
+   /**
+    * PHPFSPOT_DB fetch ONE row
+    *
+    * This function will execute the given but only return the
+    * first result.
+    */
+   public function db_fetchSingleRow($query = "") 
+   {
+      if($this->getConnStatus()) {
+
+         $result = $this->db_query($query);
+         $row = $result->fetchRow();
+         return $row;
+      }
+      else 
+         $this->ThrowError("Can't fetch row - we are not connected!");
+      
+   } // db_fetchSingleRow()
+
+   /**
+    * PHPFSPOT_DB number of affected rows
+    *
+    * This functions returns the number of affected rows but the
+    * given SQL query.
+    */
+   public function db_getNumRows($query = "")
+   {
+      /* Execute query */
+      $result = $this->db_query($query);
+
+      /* Errors? */
+      if(PEAR::isError($result)) 
+         $this->throwError($result->getMessage());
+
+      return $result->numRows();
+
+   } // db_getNumRows()
+
+   /**
+    * PHPFSPOT_DB get primary key
+    *
+    * This function returns the primary key of the last
+    * operated insert SQL query.
+    */
+   public function db_getid()
+   {
+      /* Get the last primary key ID from execute query */
+      return mysql_insert_id($this->db->connection);
+      
+   } // db_getid()
+
+   /**
+    * PHPFSPOT_DB check table exists
+    *
+    * This function checks if the given table exists in the
+    * database
+    * @param string, table name
+    * @return true if table found otherwise false
+    */
+   public function db_check_table_exists($table_name = "")
+   {
+      if($this->getConnStatus()) {
+         $result = $this->db_query("SHOW TABLES");
+         $tables_in = "Tables_in_". MYSQL_DB;
+	
+         while($row = $result->fetchRow()) {
+            if($row->$tables_in == $table_name)
+               return true;
+         }
+         return false;
+      }
+      else
+         $this->ThrowError("Can't check table - we are not connected!");
+	 
+   } // db_check_table_exists()
+
+   /**
+    * PHPFSPOT_DB get connection status
+    *
+    * This function checks the internal state variable if already
+    * connected to database.
+    */
+   private function setConnStatus($status)
+   {
+      $this->is_connected = $status;
+      
+   } // setConnStatus()
+
+   /**
+    * PHPFSPOT_DB set connection status
+    * This function sets the internal state variable to indicate
+    * current database connection status.
+    */
+   private function getConnStatus()
+   {
+      return $this->is_connected;
+
+   } // getConnStatus()
+
+   /**
+    * PHPFSPOT_DB throw error
+    *
+    * This function shows up error messages and afterwards through exceptions.
+    */
+   private function ThrowError($string)
+   {
+      if(!defined('DB_NOERROR'))  {
+         print "<br /><br />". $string ."<br /><br />\n";
+         try {
+            throw new Exception;
+         }
+         catch(Exectpion $e) {
+         }
+      }
+
+      $this->last_error = $string;
+	 
+   } // ThrowError()
+
+   private function getLastError()
+   {
+
+      return sqlite3_error_string(sqlite3_last_error($this->db));
+
+   } // getLastError()
+
+}
+
+?>