Updating rails application
MVC divides your application into three layers, each with a specific responsibility.The represents your domain model (such as Account, Product, Person, Post, etc.) and encapsulates the business logic that is specific to your application.It’s a good idea to upgrade your dependencies to the latest version, or at least the latest minor version of each dependencies’ major version.With a good version requirement, this could be as easy as running .Rails is a web-application framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern.Understanding the MVC pattern is key to understanding Rails.
What command are you entering when you get the error? However, I rerouted the index page to a new view I made, and my changes show up correctly locally (in localhost:3000), but when I git add/commit/push (and it shows up in Heroku that I correctly deployed). I tried just committing/pushing to heroku master, but I get the error "fatal: remote end hung up unexpectedly." What should I do instead?Also: am I supposed to run db:migrate BEFORE deploying/pushing?Unless you’re upgrading from an ancient version of Ruby, this process should be simple and straightforward, provided you have good test coverage.Note that upgrading to newer version of Ruby may cause your application to use more memory, so you should monitor your application’s memory usage after the upgrade.