private function getCommList($brokerId, $lat, $lng)
{
// 从缓存中读取数据
$communities = Bll_Commsign::getCommList($brokerId);
if (empty($communities)) {
// 根据lat和lng获取1.5km内的小区列表
$latLngRound = Util_Map::round($lat, $lng, 1500);
$communities = Model_Community_AjkCommunity::data_access()->load_field(array('commId', 'commName', 'sosolng', 'sosolat'))->filter('typeFlag', 0)->filter_by_op_multi(array(array('sosolat', '>=', $latLngRound['minLat']), array('sosolat', '<=', $latLngRound['maxLat']), array('sosolng', '>=', $latLngRound['minLng']), array('sosolng', '<=', $latLngRound['maxLng'])))->limit(1000)->get_all();
if (empty($communities)) {
return array();
}
// 实现按距离排序 • 升序
uasort($communities, function (&$a, &$b) use($lat, $lng) {
// 计算坐标的距离
$a['distance'] = Util_Map::distance($lat, $lng, $a['sosolat'], $a['sosolng']);
$b['distance'] = Util_Map::distance($lat, $lng, $b['sosolat'], $b['sosolng']);
// 比较两小区坐标
if ($a['distance'] == $b['distance']) {
return 0;
}
return $a['distance'] < $b['distance'] ? -1 : 1;
});
$i = 0;
$data = array();
foreach ($communities as $community) {
if (++$i > 300) {
break;
}
$row = array();
$row['commId'] = $community['commId'];
$row['commName'] = $community['commName'];
$row['lng'] = $community['sosolng'];
$row['lat'] = $community['sosolat'];
$row['distance'] = $community['distance'];
$data[] = $row;
}
// 缓存数据
Bll_Commsign::setCommList($brokerId, $data);
return $data;
} else {
if (is_array($communities)) {
return $communities;
} else {
return array();
}
}
}
