ruby - rails collection_select vs. select

Question

collection_select and select Rails helpers: Which one should I use?

I can't see a difference in both ways. Both helpers take a collection and generates options tags inside a select tag. Is there a scenario where collection_select is better than select? or is anything I am missing here?

question from:https://stackoverflow.com/questions/1728593/rails-collection-select-vs-select

Answer 1

collection_select is intended to be used when the list of items is an array of ActiveRecord objects. collection_select is built on the top of select so it's a convenient method when you need to display a collection of objects and not an array of strings.

collection_select(:post, :author_id, Author.find(:all), :id, :name)