Practice WOD: DigitsMultiUser

The goal of this WOD is to update the model in your Digits system to support multiple users. You should create two different users and initialize them with different contacts. Then only the contacts associated with the authenticated user will be displayed after login.

Instructions

Support Create, Read, and Update for your digits application. You have already implemented Create and Read, so this WOD simply requires you to modify the existing code to support Update. Follow the approach described in the screencast of using an ID field to distinguish between new and pre-existing instances.

1. Start your timer.
2. Create a branch of your digits system called multiuser-1.
3. Enable checkstyle.
4. Add a small change to a file, then push this commit to GitHub with the message “Starting WOD”.
5. In this branch, implement multi-user support as described above.
6. When you have verified that it’s working, push your enhanced code to your branch on GitHub with the message “Finished WOD”. The difference between the timestamps associated with the two commits represent your WOD time, and the code diffs represent your implementation.

When finished, stop your timer, and record how many minutes it took you to complete the WOD.

Rx: <10 min Av: 10-15 min Sd: 15-20 min DNF: 20+ min

Demonstration

Once you’ve finished doing the WOD a single time, watch me do it:

Standard WOD Caveats

You’ll learn significantly less from watching me solve the WOD if you haven’t attempted the WOD yourself first.

While it’s an achievement to finish the WOD no matter how long it takes, you might experience “diminishing returns” if you work longer than the DNF time. Thus, it might be strategic to stop working at the DNF time and watch my solution.

After watching my solution, I recommend that you repeat the WOD if you have not achieved at least Av performance. If so, be sure to:

• Delete your old project so you cannot refer to it;
• Don’t look at my screencast while you WOD; and
• Reset your timer.

Feel free to keep trying until you make Rx if that’s of interest to you.

How to repeat the WOD

To repeat the WOD, simply switch your local workspace branch to master, then create a new branch off of master called “Attempt-2″ (or whatever attempt you are on). Then, in the play console, type ; clean ; compile ; run to clean the target directory, then recompile the system, then run the web application.

When you’ve finished doing this WOD as many times as you need, you might want to merge your changes into the master branch so that they are easily available for future WODs.