moha/class/db.php

<?php
logger(DEBUG,"Including db.php");

class db extends mysqli
{
	public $mysqlServer = "192.168.1.253"; // "127.0.0.1";
	public $username = "moha";
	public $passwd = "MysqlMoha";
	public $database = "moha";
	public $result;

	function __construct()
	{
		if ($this->connect($this->mysqlServer, $this->username, $this->passwd, $this->database) === false)
		{
			logger(ERROR,"Connection to sql server error :" . $this->connect_error);
			return 2;
		}
		$result = new mysqli_result($this);
	}

	function protect($string)
	{
		return $this->real_escape_string($string);
	}

	function logProperty($device, $propertyTree, $value, $oldValue = 0)
	{
		global $mohaDB, $properties2log, $testMode;
		$precision = 0;
		//echo "############## logProperty ################\nproperty => " . $propertyTree .EOL;
		if (array_key_exists($propertyTree, $properties2log))
		{
			//echo "logging in database";
			$ieeeAddress = $device->ieeeAddress;
			//print_r($ieeeAddress);
			$query = "INSERT INTO logs (device, property, value) VALUES('" . $this->protect($ieeeAddress) . "', '" . $this->protect($propertyTree) . "', '" . $this->protect($value) . "')";
			if (is_numeric($value) and !empty($properties2log[$propertyTree]))
			{
				// calculate a min/max value for storing data
				$var = $properties2log[$propertyTree];
				if (!is_numeric($var))
				{
					$minMax = (float)$value * (float)$var / 100;
				}else
				{
					$minMax = $var;
				}
				echo "minMax = " .$minMax . EOL;
				//echo "oldValue = " . $oldValue . EOL;
				//echo "Value = " . $value . EOL;
				if ($value >= $oldValue - $minMax and $value <= $oldValue + $minMax)
				{
					//echo "========>>>>>>>>>not changed" . EOL;
					return 0;
				}
			}
			if ($testMode)
			{
				logger(INFO, _("Test mode on: not storing in DB "));
			}else
			{
				if(!$this->result = $this->query($query))
				{
					logger(ERROR, _("mysql query errror: ") . $this->error);
				}
			}
			logger(INFO, sprintf(_("New value of property: '%s' of device: %s stored in database"), $propertyTree, $device->friendlyName, $value));
		}
	}
}

$mohaDB = new db();

?>