查詢在紅寶石檢查整數值在軌道上

Question

我想在執行這個查詢Rails應用程序

Video.where("category= 'film' AND grant = 1").order('created_at DESC').page(params[:page]).per_page(10) 

這裏授予店的整數值。

和我收到以下錯誤

Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'grant = 1) ORDER BY created_at DESC LIMIT 10 OFFSET 0' at line 1: SELECT `videos`.* FROM `videos` WHERE (category= 'film' AND grant = 1) ORDER BY created_at DESC LIMIT 10 OFFSET 0 

在此先感謝

Answer 1

的問題是有補助。 GRANT是MySql中的保留字。你應該在他們周圍使用反勾號。

Video.where("category= 'film' AND `grant` = 1").order('created_at DESC').page(params[:page]).per_page(10) 

會做我的工作。請參考Reserved Words

Answer 2

檢查：

Video.where("category = ? AND `grant` = ?", "film", 1).order('created_at DESC').page(params[:page]).per_page(10) 

Answer 3

試試這個..

@videos=Video.where(:category => 'film',:grant => 'yes').order('created_at DESC').page(params[:page]).per_page(10)