I have this testingdatabase which, by now, is stuffed with junk. Now I\'ve done a few Table.destroy_all commands in the rails console which deletes all records and dependencies
(A bit late to the party, I know)
Asking to do this in the console:
2.1.2 :001 > Post.all.each do |post|
2.1.2 :002 > post.destroy!
2.1.2 :003 > end
Works as well...
This essentially loops through all of the posts and destroys them. It does not change your auto increment value though...
Same logic should work for Rails 3 as well (though I am using Rails 4)