دانلود کتاب داده های اصلی را آزاد کنید: واکشی داده ها، مهاجرت، و نگهداری فروشگاه های پایدار

Years ago, when I made my first steps in iOS development, I remember how I bumped into Core Data for the first time.

I also remember how immature iOS development was. No ARC, Auto Layout wasn’t out yet, and Xcode was still a multiple-window IDE with iOS SDK version 3 as the most recent deployment version.

But I still remember the feeling I had. I was fascinated by how simple it was to use Core Data.

No SQL queries. No complicated setup or looping the SELECT results.

Core Data felt like magic, as if the data was “just there” when I needed it and in the format I needed.

But after a while, issues came up.

Weird crashes, concurrency issues, performance, migrations, and complicated predicates.

What I didn’t know was that these issues weren’t only my problem.

Stack Overflow and Apple Developer Forums were full of complaints and frustrated users.

After years of development, I understood something about Core Data – it’s one of the most sophisticated, intelligent, and essential frameworks in iOS SDK. And while Core Data looks simple at first glance, it hides many secrets underneath we need to unleash to use it right.

That’s why I called my book Unleash Core Data.