使用OR运算符和动态参数使用Rails发出查询

Question

What is the best way to issue a query with an "OR" operator with dynamic params within Rails? I have a simple API that checks whether the user wants to search in certain categories.

categories = params[:categories].split(',')

I want to make a query that seems like this

category_1 = 1 OR category_2 = 1 OR ...

I currently build a string iterating through categories and issue

@resource = Resource.where(query)

Is this the best way to make a query of this type?

Answer 1

"best" doesn't really mean much here, different methods have their pros and cons. There's certainly nothing wrong with doing what you're doing (in fact I recommended essentially this method earlier today here )