public function index()
{
if (Input::get('coordinates')) {
$cd = Input::get('coordinates');
$_cd = explode(',', $cd);
$wd = $_cd[0];
$jd = $_cd[1];
$schools = School::all();
$ret = array();
$radius = Input::get('radius') ? Input::get('radius') : 30000;
foreach ($schools as $v) {
$tmp = explode(',', $v->coordinates);
$lat1 = $tmp[0];
$lng1 = $tmp[1];
$dst = $this->getDistance($lat1, $lng1, $wd, $jd);
if ($dst < $radius) {
$ret[floor($dst)] = $v;
}
ksort($ret);
$out = [];
foreach ($ret as $v) {
$out[] = $v;
}
}
return $this->output(array('schoolList' => $out));
} else {
return $this->output(array('schoolList' => School::orderBy('ord', 'desc')->limit(4)->get()));
}
}
