SwiftData Predicates on Enums

SwiftData has always supported enums — but filtering on them was a chore. Raw values, mapping, manual conversions. Not anymore.

iOS 27 changes everything.

What's covered:

• SwiftData enum predicates — direct, no workarounds
• Filtering with #Predicate { $0.expenseType == expenseType }
• Building segmented filters in SwiftUI
• Query initialization techniques with enums
• Clean, type-safe code without raw values

Real example: An expense tracker that filters by ExpenseType enum (food, travel, housing, entertainment) — no raw values, no mapping, just Swift.