A Rails talk for Dev Bootcamp

1. SESSIONS AND FLASH
What goes in a hash?

2. REVIEW: WHAT IS A SESSION?
A session is a hash that will store information on the client’s
server until the session times out or is deleted.
Ex: creating a new session at login to remember a user until they log out or
exit the application.

3. FUN FACTS
➤ Sessions are “lazily loaded”, meaning they will only load if
you use them. If you choose not to use sessions, you don’t
have to disable them.
➤ You can use the reset_session method to reset the entire
session hash.
➤ To store data that persists from session to session, you can
store a session in the CookieStore.

4. WHAT IS THE FLASH HASH?
Much like a session, a flash is a bit of information that is
stored on the client’s server. A flash will only last from one
request to the next.

5. MORE ABOUT FLASH
➤ You can create different types of messages, such as :notice or
:alert.
➤ You can also create custom alerts such as:
➤ To display multiple flash messages, iterate through the hash
using each.

6. OTHER WAYS TO USE FLASH
flash.now
flash.keep

7. FUN FACT
➤ Bootstrap has alert classes that can be used to display flash
messages.