Feature/check serial exist

[alex001x]

On the devices.php page,
a serial number verification button has been added. This button is invisible by default and visible when the page is in edit mode (no serial number in the entry when loading) or when creating a new device.
An AJAX request is sent to verify the existence of a serial number, triggered by the serialexist button.

[alex001x]

[wilpig]

Instead of adding a new function here, we should instead reuse the function above this but add an exact option.

openDCIM/classes/Device.class.php

Line 1513 in 0ea5e3c

function SearchDevicebySerialNo(){

	function SearchDevicebySerialNo($exact=false){
		global $dbh;

		$this->MakeSafe();

		if($exact){
			$extend="SerialNo = :serial LIMIT 1;"
		}else{
			$extend="SerialNo LIKE \"%$this->SerialNo%\" ORDER BY Label;"
		}

		$sql="SELECT * FROM fac_Device WHERE $extend";

		$deviceList=array();

		foreach($dbh->query($sql) as $deviceRow){
			$deviceList[$deviceRow["DeviceID"]]=Device::RowToObject($deviceRow);
		}

		return $deviceList;
	}

then over there in devices it would become $devList = $dev->SearchDevicebySerialNo(true);