查询Builder也Laravel 5

Question

有人可以帮助我，

这我的数据库SQL查询 My Table

SELECT supplier, 
MAX(IF(item_name = 'Lemon', price, NULL)) AS Lemon, 
MAX(IF(item_name = 'Apple', price, NULL)) AS Apple, 
MAX(IF(item_name = 'Durian', price, NULL)) AS Durian, 
MAX(IF(item_name = 'Mango', price, NULL)) AS Mango 
FROM offer 
where status = 'open' 
GROUP BY supplier 

如何通过Laravel的QueryBuilder使用此查询？谢谢...

Answer 1

$results = DB::table('offer')->select(DB::raw("supplier, 
    MAX(IF(item_name = 'Lemon', price, NULL)) AS Lemon, 
    MAX(IF(item_name = 'Apple', price, NULL)) AS Apple, 
    MAX(IF(item_name = 'Durian', price, NULL)) AS Durian, 
    MAX(IF(item_name = 'Mango', price, NULL)) AS Mango")) 
->where('status', 'open') 
->groupBy('supplier') 
->get(); 

真的，查询生成器不是为复杂的查询。当他们得到的是复杂的，你可能会发现它更容易只是使用原始声明：

$results = DB::select("SELECT supplier, 
    MAX(IF(item_name = 'Lemon', price, NULL)) AS Lemon, 
    MAX(IF(item_name = 'Apple', price, NULL)) AS Apple, 
    MAX(IF(item_name = 'Durian', price, NULL)) AS Durian, 
    MAX(IF(item_name = 'Mango', price, NULL)) AS Mango 
FROM offer 
where status = 'open' 
GROUP BY supplier");