将原始查询转换为 Laravel eloquent [英] Convert raw query to Laravel eloquent

问题描述

如何将此原始查询转换为 Laravel 雄辩的方式:

select c.name as country from country c, address ad, city ci wheread.id = 1 and city.id = ad.city_id and c.code = ci.country_code

解决方案

我会修改Andrey Lutscevich eloquent part

的答案

Country::select('country.name as country')->has('city')->whereHas('address', function ($query){$query->where('id', 1);})->get();

<块引用>

查询关系是否存在在访问模型的记录时，您可能希望根据关系的存在限制结果，在这种情况下使用 has

WhereHas 方法将where"条件放在你的查询上

How to convert this raw query to Laravel eloquent way:

select c.name as country from country c, address ad, city ci where
ad.id = 1 and city.id = ad.city_id and c.code = ci.country_code

解决方案

I will modify the answer from Andrey Lutscevich eloquent part

Country::select('country.name as country')->has('city')
  ->whereHas('address', function ($query)
  {
    $query->where('id', 1);
  })
  ->get();

Querying Relationship Existence When accessing the records for a model, you may wish to limit your results based on the existence of a relationship use has in that case

WhereHas methods put "where" conditions on your has queries

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