Algolia：如何根据值对搜索进行排名？

Posted 2023-02-23

【中文标题】Algolia：如何根据值对搜索进行排名？

【英文标题】：Algolia: how to rank search based on a value?

【发布时间】：2017-02-16 08:50:38

【问题描述】：

如何根据给定值对我的 algolia 记录进行排名？ 该值是根据用户的 ip 位置动态变化的。

我希望SC 状态显示在列表的首位，我该怎么做？

例如我有记录

[
 
   "category":"Emergency Department",
   "address": "state": "SC"
   ......
 ,
 
   "category":"Emergency Department",
   "address": "state": "NC"
   ......
 , 
 
   "category":"Emergency Department",
   "address": "state": "NC",
   ......
 , 
 
   "category":"Radiology",
   "address": "state": "WV"
   ......
 , 
 
   "category":"PROVIDENCE HOSPITAL",
   "address": "state": "TN"
   ......
 , 
 
   "category":"PROVIDENCE HOSPITAL",
   "address": "state": "TN"
   ......
 , 
]

我的搜索代码是这样写的

algoliaIndex.search(
   query: 'Emergency Department' +' '+ 'SC',
 , function(err, hits) 
  console.log(hits.hits);
);

我的索引设置

[
 'searchableAttributes' => [
  'general_name',
  'name',
  'category',
  'address.city',
  'address.state',
  'address.zip_code',
  ],
 'customRanking' => [
   "desc(address.state)",
   "desc(general_name)"
  ],
]

【参考方案1】：

您可以使用地理搜索功能根据用户的位置对结果进行排序。这是实现它的指南：https://www.algolia.com/doc/guides/geo-search/geo-search-overview/#filter-and-sort-around-a-location

API允许你直接提供一个ip，它会自动转换成对应的坐标：https://www.algolia.com/doc/guides/geo-search/geo-search-overview/#by-looking-at-the-ip-address

要实现它，您需要将 address.state 字段转换为 lat/lng 坐标以使其正常工作。你可以看看这个 SO 线程来找到一个数据库来做这件事：Latitude and Longitude based on Zip Code