Regarding pagination in cakephp 2.0 with order by - php

Question

How to deal with order by with different models.For e.g. i have an CareseekerJob model which is in association(belongsTO) with city,state,category and user model.I am doing searching and want to sort the job with price but it is taking by default paging of job table.
Please refer the code:-
$searchdata = array();
$conditioncat = '';
$conditionsearch = '';
if(!empty($categories) && $categories!='-1')
{
$conditioncat = 'CareseekerJob.category_id IN ('.$categories.') ';
}
if($categories == '-1')
{
$conditionserv = '(1 = 1) ';
}
$conditionserv = '';
if(!empty($services) && $services!='-1')
{
$serviceses = explode(',',$services);
$servicename = '';
$con = '(1 = 1) AND '; $i='0';
$servicename = '';
foreach($serviceses as $key=>$value)
{ $i++;
$servicedata = $this->Service->find('first',array('conditions'=>array('Service.id'=>$value)));
$servicename = $servicedata['Service']['name'];
$con .= '(CareseekerJob.services LIKE "%'.$servicename.'%")' ;
if(count($serviceses) == $i){
$con .= ' ';
}else{
$con .= ' OR ';
}
}
$conditionserv = $con;
}
if($services == '-1')
{
$conditionserv = '(1 = 1) ';
}
$conditiontime = '';
if($timingess != '1')
{
$start = '';
$end = '';
if($timingess == 'morning')
{
$start = date('H:i:s',strtotime('00:00:00'));
$end = date('H:i:s',strtotime('11:59:00'));
}
elseif($timingess == 'afternoon')
{
$start = date('H:i:s',strtotime('11:59:00'));
$end = date('H:i:s',strtotime('16:00:00'));
}
elseif($timingess == 'evening')
{
$start = date('H:i:s',strtotime('16:00:00'));
$end = date('H:i:s',strtotime('20:00:00'));
}
elseif($timingess == 'night')
{
$start = date('H:i:s',strtotime('20:00:00'));
$end = date('H:i:s',strtotime('23:59:00'));
}
elseif($timingess == 'morning,afternoon')
{
$start = date('H:i:s',strtotime('00:00:00'));
$end = date('H:i:s',strtotime('16:00:00'));
}
elseif($timingess == 'morning,evening')
{
$start = date('H:i:s',strtotime('00:00:00'));
$end = date('H:i:s',strtotime('20:00:00'));
}
elseif($timingess == 'morning,afternoon,evening')
{
$start = date('H:i:s',strtotime('00:00:00'));
$end = date('H:i:s',strtotime('20:00:00'));
}
elseif($timingess == 'morning,afternoon,evening,night')
{
$start = date('H:i:s',strtotime('00:00:00'));
$end = date('H:i:s',strtotime('23:59:00'));
}
$conditiontime = "( TIME(CareseekerJob.starttime) >= TIME('".$start."') and TIME(CareseekerJob.starttime) <= TIME('".$end."') ) ";
}
if($timingess == '1')
{
$conditiontime = '(1 = 1) ';
}
$conditionsearch = "";
$conditionZip = "";
if($searchtext != 1)
{
if(is_numeric($searchtext))
{
$url1 = "https://maps.googleapis.com/maps/api/geocode/xml?address=" . $searchtext . "&sensor=false";
$details = simplexml_load_file($url1);
if ($details->status == 'OK') {
$sourceLat = $details->result->geometry->location->lat;
$sourceLon = $details->result->geometry->location->lng;
$radiusKm = 160.934;
$proximity = $this->Radiussearch->mathGeoProximity($sourceLat, $sourceLon, $radiusKm);
$latmin=min($proximity["latitudeMin"],$proximity["latitudeMax"]);
$latmax=max($proximity["latitudeMin"],$proximity["latitudeMax"]);
$lonmin=min($proximity["longitudeMin"],$proximity["longitudeMax"]);
$lonmax=max($proximity["longitudeMin"],$proximity["longitudeMax"]);
$conditionZip=array("CareseekerJob.lat BETWEEN ? AND ?" => array(number_format(min($proximity["latitudeMin"],$proximity["latitudeMax"]), 12, ".", ""), number_format(max($proximity["latitudeMin"],$proximity["latitudeMax"]), 12, ".", "")),"CareseekerJob.long BETWEEN ? AND ?"=> array(number_format(max($proximity["longitudeMin"],$proximity["longitudeMax"]), 12, ".", ""),number_format(min($proximity["longitudeMin"],$proximity["longitudeMax"]), 12, ".", "")));
}
$conditionsearch = '(1 = 1)';
}
else{
$conditionsearch= array('OR'=>array('CareseekerJob.title LIKE'=>'%'.$searchtext.'%','CareseekerJob.zipcode'=>$searchtext));
}
}else{
$conditionZip = '(1 = 1)';
$conditionsearch = '(1 = 1)';
}
if($sort =='recent' )
{
$condition= array('CareseekerJob.job_status'=>'jobactive','CareseekerJob.is_deleted'=>0,'CareseekerJob.status'=>'active');
$this->paginate = array(
'conditions' => array('AND'=>array($condition,$conditioncat,$conditiontime,$conditionserv,$conditionsearch,$conditionZip)),
'limit' => 4,
'order' => array(
'CareseekerJob.id' => 'desc'
)
);
$searchdata = $this->paginate('CareseekerJob');
}
elseif($sort =='distance' )
{
$condition= array('CareseekerJob.job_status'=>'jobactive','CareseekerJob.is_deleted'=>0,'CareseekerJob.status'=>'active');
$this->paginate = array(
'conditions' => array('AND'=>array($condition,$conditioncat,$conditiontime,$conditionserv,$conditionsearch,$conditionZip)),
'limit' => 4,
'order' => array(
'CareseekerJob.lat' => 'desc'
),
);
$searchdata = $this->paginate('CareseekerJob');
}elseif($sort =='price')
{
$condition= array('CareseekerJob.job_status'=>'jobactive','CareseekerJob.is_deleted'=>0,'CareseekerJob.status'=>'active');
$this->paginate = array(
'conditions' => array('AND'=>array($condition,$conditioncat,$conditiontime,$conditionserv,$conditionsearch,$conditionZip)),
'limit' => 4,
'order' => array(
'CareseekerJob.rate' => 'desc'
)
);
$searchdata = $this->paginate('CareseekerJob');
}