我怎麼可以把一些過濾字符串到我的SQL在playframework與scalikejdbc

Question

的司機我要算在我的城市的人與一些過濾

val filter = sex match{ 
    case "all"=>"" 
    case "men" => "where sex = 'men'" 
    case "women" => "where sex = 'women'" 
} 
sql""" 
    select * from users $filter 
    """.map{...}.apply 

但它是錯誤這樣

SELECT * FROM users 'where sex = 'women'' 

過濾器字符串只是一個我不需要的字符串。 我怎麼能解決這個問題？

Answer 1

您可能需要使用兩個不同的查詢：

val results = sex match{ 
    case "all"=>sql""" 
    select * from users""".map{...}.apply 
    case _ => sql"""select * from users where sex = $sex""".map{...}.apply 
} 

或使用相應的參數：

val filter = sex match{ 
    case "all"=>"%" 
    case "men" => "men" 
    case "women" => "women" 
} 
sql""" 
    select * from users where sex = $filter 
    """.map{...}.apply