Core Data Migration

A presentation on database migration.

Transcript

1. Core Data Migration @zeeshan_khan
2. Core Data • What is it? • A Framework, APIs • Why shall we use it over sqlite? • All objects, SQL-less queries, Lesser time... • How does it work?
3. Core Data Terms • A Model • A Store • A Coordinator • A Context Managed Object Context Persistent Store Coordinator Persistent Store Managed Object Model
4. Problem & Solution
5. Migration • When is it required? • Requirements for migration. • Changes that don’t require migration. • How it works? • Initialization of Core Data • The Process...
6. Migration Ways • Lightweight • ’s Term, Less work, Simple Changes... • Manual • A little more work, need mapping model • Custom (For complex transformation) • Fully Manual
7. Lightweight • Adding a version • Migrating with code
8. Manual • Adding a version • Adding a mapping model • Migrating with code
9. Manual Demo
10. The mo-generator
11. What next?
12. References • iWrite (Presentation Data) • iCode (Sample Code)
13. Thanks!