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Sessions and Flash

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A Rails talk for Dev Bootcamp

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Sessions and Flash

  1. 1. SESSIONS AND FLASH What goes in a hash?
  2. 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. 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. 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. 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. 6. OTHER WAYS TO USE FLASH flash.now flash.keep
  7. 7. FUN FACT ➤ Bootstrap has alert classes that can be used to display flash messages.

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