在Rails中組合兩個SQL where語句

Question

如何使這兩個WHERE語句都滿意？

where("cast(strftime('%d', date) as int) = ?", month)
where("cast(strftime('%Y', date) as int) = ?", year)

就像是：

where("cast(strftime('%d', date) as int) = ?", month) AND
       where("cast(strftime('%Y', date) as int) = ?", year)

我嘗試了幾種方法，但無法正常工作。

謝謝

Answer 1

您可以使用多個問號：

where("cast(strftime('%d', date) as int) = ? 
       AND cast(strftime('%Y', date) as int) = ?", month, year)

或者只使用2個where語句：

where("cast(strftime('%d', date) as int) = ?", month)
.where("cast(strftime('%Y', date) as int) = ?", year)