Head First iPhone and iPad Development, 2nd Edition

Chapter 9. Migrating and Optimizing with Core Data: Things are changing

We have a great app in the works.

iBountyHunter successfully loads the data Bob needs and lets him view the fugitives easily. But what about when the data has to change? Bob wants some new functionality, and what does that do to the data model? In this chapter, you’ll learn how to handle changes to your data model and how to take advantage of more Core Data features.

Bob needs documentation

Bob needs to record more information.

Bob has to keep track of his work so he can be paid. That means we need somewhere to store the day and time of a capture and then use that to build the Captured view...

Note

Remember that Captured view we built in the last chapter?

How are we going to update iBountyHunter to handle the new information?

Sharpen your pencil

We need to figure out how to update iBountyHunter to handle this new data. Look at each piece of our application and write what, if anything, needs to change.

Sharpen your pencil Solution

We need to figure out how to update iBountyHunter to handle this new data. Look at each piece of our application and write what, if anything, needs to change.

Everything stems from our object model