如何在Rails中通过ID以外的属性查找对象？

Question

I need to find multiple models in my db by a unique identifier that is not the id. Is there a way to do this in rails? Basically, I'm looking for the analog of:

Foo.find([1,2,3])

for the by_attribute helpers:

Foo.find_by_name(['me','you','him'])

The issue I'm having now is that the find_by_name helper is appending LIMIT 1 to the query it creates so I'm just getting one object back rather than an array of all of the objects I'm looking for.

Thanks!

Answer 1

Using rails 3.x:

Foo.find_all_by_name(['me','you','him']);

Or using rails 4.x

Foo.where(name: ['me','you','him'])

Answer 2

As usual, I figured this out as soon as I'd written up the question for Stack Overflow :)

where supports a list of values and will return all objects that match. So, to find all Foos by name:

Foo.where(name: ['me','you','him'])