Masud Hossain


3,460 Experience
1 Lesson Completed
3 Questions Solved


If you back up your Heroku PG database, this is storing all your users login info, right?

So can I delete my whole rails app, push up a brand new rails app (using devise and rails5) and than put in the backup PG i made on heroku?

Will this let my users sign in with their original email/pw?

I'm trying to have my 'conversations' partial which is a list of all active conversations show up on the navbar, but of course I'm getting a no method error.

I figured you can copy the conversationscontroller's instance variables and add them to the applicationcontroller, but i think there's a bit more to it than that.

Is there a video on for working with stuff like this?

Posted in Video Series on Security for rails?

Is there any videos for best practice security routines for Rails? Things to do or not do so that your rails app isn't compromised by hackers.

I also found one called

My only concern with Vestal Version from the Railscast is that it hasn't been updated since 2014, so I'm not sure how it'll work with rails 5.0.
And also my users will be uploading files, so that kind of becomes an issue too since it looks like it's mostly for EDITS.

I'm looking to create a webapp that lets users upload and save files similar to github (except no terminal usage. Users upload through the website) and have version control so they can retrieve previous files.

So basically they can 'push/upload' a folder on the site, and it'll make the previous version go into 'storage' in case they need to retrieve it and show the new version as the main version.

Is there any gems or videos on this site that can teach me more about this revision control feature?

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