How to delete all data from all tables in Rails?

Question

I can do Post.delete_all to delete all my posts, but what if I want to delete all posts, comments, blogs, etc.?

How do I iterate over all my models and

Answer 1

You can have finer control with:

rake db:drop:all

And then create the database without running the migrations,

rake db:create:all

Then run all your migrations,

rake db:migrate 

You can also do:

mysqladmin drop databasename