Add Prevent Writes With A Sandboxed Rails Console as a Rails til

rails/prevent-writes-with-a-sandboxed-rails-console.md

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+# Prevent Writes With A Sandboxed Rails Console
+
+I often open a `rails console` to play around with some data and make sure I
+understand how some models can be instantiated while respecting their
+associations. There are plenty of times where I've created some data in the
+`development` database that doesn't need to be there. It may even be incomplete
+data from a failed experiment.
+
+This data accumlates and clutters up the database.
+
+One way to avoid this is by running the console in a sandboxed mode. Include
+the `--sandbox` flag when starting up a session to do this.
+
+```bash
+$ rails console --sandbox
+Loading development environment in sandbox (Rails 5.2.6)
+Any modifications you make will be rolled back on exit
+[1] pry(main)>
+```
+
+This wraps the session in a transaction so that any writes to the database can
+be rolledback afterward.
+
+[source](https://dev.to/citizen428/rails-quick-tips-1-console-sandbox-4k0c)