Ruby On Rails Active Record Query delete_all

.delete_all

Example:-

If you need to delete a lot of records quickly, ActiveRecord gives .delete_all method. to be called directly on a model, to delete all records in that table, or a collection. Beware though, as .delete_all does not instantiate any object hence does not provide any callback (before_* and after_destroy don't get triggered).

Let's suppose we have a Blog Model and blogs table which has 50 rows.

We want to delete all the blogs records or rows.

Blog.delete_all    #=> 50  <-- .delete_all return the number of rows deleted

Blog.where(author_name: "John").delete_all