Ruby On Rails Active Record Query .delete_all
Example of Ruby On Rails Active Record Query delete_all
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