How to get an array with column names of a table

Question

I need an array with the column names of a table

Any ideas how I can do this with rails 3.0.0rc?

Answer 1

For ActiveRecord:

Model.column_names

---

For Mongoid:

Model.attribute_names

---

Output:

=> ["id", "title", "body", "created_at", "updated_at"] 

Note: It'll be _id instead of id for Mongoid