初始版本

server/app/common/logic/CityLogic.php

@@ -0,0 +1,40 @@
+<?php
+namespace app\common\logic;
+use app\common\model\city\City;
+
+/**
+ * 城市逻辑类
+ * Class CityLogic
+ * @package app\common\logic
+ */
+class CityLogic extends BaseLogic
+{
+
+    /**
+     * @notes 获取经纬度附近的城市
+     * @param $longitude
+     * @param $latitude
+     * @return array
+     * @author cjhao
+     * @date 2024/9/3 23:41
+     */
+    public static function getNearbyCity($longitude,$latitude)
+    {
+        //用st_distance_sphere函数计算两点记录，单位米，这里换成千米
+        $field = 'id,city_id,name,0 as distance,gcj02_lng as longitude,gcj02_lat as latitude';
+        if($longitude && $latitude){
+            //用st_distance_sphere函数计算两点记录，单位米，这里换成千米
+            $field = 'id,city_id,name,round(st_distance_sphere(point('.$longitude.','.$latitude.'),
+            point(gcj02_lng, gcj02_lat))/1000,2) as distance,'.$longitude.' as longitude,'.$latitude.' as latitude';
+        }
+
+        $cityLists = City::field($field)
+            ->append(['distance_desc'])
+            ->order('distance asc')
+            ->hidden(['distance'])
+            ->select()
+            ->toArray();
+        return $cityLists;
+
+    }
+}