Search entire database

is there any way to search through all the models and display it
without having to loop through all the columns of each table?

I looked around and the only thing I could find was to specify :models
=> :all as an option when I call find_by_contents on a model. But that
doesn’t work for me. It keeps only searching the model that I call
find_by_contents on. But even if that works I don’t want to have to go
through all my models (I have a lot of them) and loop through each
column to output the search results.

Any easy methods to do this?

Thanks in advance.