group by stations in Laravel

问题

I'm trying to display the results of this query in laravel, this time only using fluent since Eloquent results where too nested, there're are data retrived from 6 tables in total

$result = \DB::table('estacion')

          ->join('equipo_estacion as eq_est', 'estacion.id','=', 'eq_est.estacion_id')
          ->join('equipo as eq', 'eq_est.equipo_id', 'eq.id')
          ->join('equipo_parametro as eq_param','eq.id','eq_param.equipo_id')
          ->join('parametro as pa','eq_param.parametro_id','pa.id')
          ->join('region','estacion.region_id','region.id')
          ->select('estacion.id','estacion.nombre as nom_est','eq.id as id_eq','eq.nombre as nombre_eq','pa.nombre as nombre_parametro','region.nombre as nombre_region')
          ->get();

I got this collection as a result, and i need to display data in this format shown in the two images below:

collection retrieved

i just need one row per station (ex. Antofagasta) and i get the data in two separated arrays because Antofagasta has two equipments, each station can have 0, 1 or many equipments (Equipo), so if station Antofagasta has two equipments(Environment 101m and Equipo3) , each equipment has 1 parameter to gauge(Environment measure MP10, Equipo3 measure NO2) , I must show every station and to the right the parameters measured by the equipments in that station, for example in the Antofagasta Station there are two equiments, I show that one measure MP10 in the respective column, and the other NO2 in the respective column.the same for the 2 other rows

   
(Title)Region   Station       MP10     MP2.5-     SO2 -    N02  -   CO   
---------------------------------------------------------------------------
(row1)Region1  Antofagasta    YES        NO       NO       YES      NO 

回答1:

Did you think about rebuild query? you can use pivot in SQL (depends on RDBMS) to build columns with you equipments.

Sorry that in answer not comment, but I can't add comment.

来源：https://stackoverflow.com/questions/43791227/group-by-stations-in-laravel