如何在squeel中动态处理where条件？

从这个输入：{‘hear’=> 1}我需要生成此查询

Score.joins(:target_disability).where{ (target_disabilities.name == 'hearing') & (round(total_score) >= 1) } 

从这个输入{{hearing’=> 1，’mobility’=> 2}，我需要生成这个：

 Score.joins(:target_disability).where{ (target_disabilities.name == 'hearing') & (round(total_score) >= 1) | (target_disabilities.name == 'mobility') & (round(total_score) >= 2) } 

等等…

这怎么可以概括？ 因为我的输入有时会有3或4个键…有时候1 …

Answer 1

假设您的哈希值在my_params ：

 @scores = Score.joins(:target_disability).where do my_params.map{|k,v| (target_disabilities.name==k) & (round(total_score)>=v) }.inject(:|) end