Beginning Core Data

Learn the basics of using Core Data in this beginning series! You’ll learn how to model your data with attributes and relationships; add and update records; and then fetch your data with sorting and filtering options. By Brian Moakley.

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Part 1: Part 1

1
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What is Core Data? What does it bring to the table? This introduction will give you an overview of this powerful framework.

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Core Data is composed of a variety of components. In this tutorial, you'll learn about the various pieces that make up Core Data.

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Managed objects are what you use to construct your Core Data objects. In this video, you'll get started by making one.

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With our entity in place, it's time to add some additional attributes to it. Your challenge is to do this.

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As you start to build your objects, you'll need to both get them and then to sort them. This video will walk you through the process.

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Core Data allows you to save binary data to your data store. This video shows you how to work with binary data.

Filtering 7:21
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With a few lines of code, you can easily filter your Core Data objects. This video walks you through the process.

Sorting 5:51
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In this video, you'll learn how to sort your objects by the way of sort descriptors.

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While we implemented filtering and sorting, unfortunately things aren't working as expected. Your challenge is to fix it.

Conclusion 0:49
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This video concludes the first section and gives an overview of what will be covered in the next one.

Part 2: Part 2

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This video provides an overview of what will be covered in the second section.

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By combining a fetch request with a controller, you get a lot of power in an easy to use object.

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This video covers the process of ordering your objects by section.

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In your first challenge of the section, you'll add another entity.

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This video explores relationships that you can establish between objects.

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Once you define a relationship in your model, you'll need to access it in code. This video will show you how.

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This video covers the various deletion rules that you can use.

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In your final challenge, you'll write the code to delete the pet objects.

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The fetched results controller can inform you when your data changes. In this video, you'll learn how to respond to such changes.

Conclusion 4:11
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This video concludes the series but provides alternatives to using Core Data.