Group_concat - 查询生成器

Question

这是我的SQL操作：

select `id_ifc_espaces`,GROUP_CONCAT(DISTINCT `nom_espace`) as   nom_espace ,GROUP_CONCAT(DISTINCT `fonction_espace`) as fonction_espace, GROUP_CONCAT(DISTINCT `id_ouvrage_slab_wall`) as id_ouvrage_slab_wall , GROUP_CONCAT(DISTINCT `type_limit`) as type_limit,GROUP_CONCAT(DISTINCT `type_ouvr`) as type_ouvr from `relespouv` group by`id_ifc_espaces`

这是我试过的查询生成器：

$relations = DB::table('relespouv')
->select('id_ifc_espaces')
->group_by('id_ifc_espaces')
->where('id_mn','=',$idmn)
->get(array(DB::raw('GROUP_CONCAT(DISTINCT nom_espace) as   nom_espace,
                     GROUP_CONCAT(DISTINCT fonction_espace) AS fonction_espace,
                     GROUP_CONCAT(DISTINCT id_ouvrage_slab_wall) AS id_ouvrage_slab_wall,
                     GROUP_CONCAT(DISTINCT type_limit) AS type_limit, 
                     GROUP_CONCAT(DISTINCT type_ouvr) AS type_ouvr ')));

当我尝试使用例如 nom_espace:

 $relespouv[$allelement['Relation']][12]=$relation->nom_espace;

我收到错误：

Undefined property: stdClass::$nom_espace

谁能帮帮我吗？

Answer 1

你应该搬家

array(DB::raw('GROUP_CONCAT(DISTINCT nom_espace) as   nom_espace,
    GROUP_CONCAT(DISTINCT fonction_espace) AS fonction_espace,
    GROUP_CONCAT(DISTINCT id_ouvrage_slab_wall) AS id_ouvrage_slab_wall,
    GROUP_CONCAT(DISTINCT type_limit) AS type_limit, 
    GROUP_CONCAT(DISTINCT type_ouvr) AS type_ouvr ')
)

从 get() 到 select() 像这样

$relations = DB::table('relespouv')
    ->select(array(
        'id_ifc_espaces'
        DB::raw('GROUP_CONCAT(DISTINCT nom_espace) as   nom_espace,
        GROUP_CONCAT(DISTINCT fonction_espace) AS fonction_espace,
        GROUP_CONCAT(DISTINCT id_ouvrage_slab_wall) AS id_ouvrage_slab_wall,
        GROUP_CONCAT(DISTINCT type_limit) AS type_limit, 
        GROUP_CONCAT(DISTINCT type_ouvr) AS type_ouvr ')
    ))
    ->group_by('id_ifc_espaces')
    ->where('id_mn','=',$idmn)
    ->get();

Group_concat - 查询生成器

Group_concat - query builder

query-builder

laravel