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Code Issues 95 Packages Projects Releases 10 Wiki Activity

display explanation dialog for migration demo

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John Rommel Estropia
2015-07-29 22:21:22 +09:00
parent 2a56c097f2
commit 4dbc4558e3
1 changed files with 9 additions and 0 deletions
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9
CoreStoreDemo/CoreStoreDemo/MIgrations Demo/MigrationsDemoViewController.swift
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@@ -37,6 +37,15 @@ class MigrationsDemoViewController: UIViewController {
super.viewDidAppear(animated) super.viewDidAppear(animated)
let alert = UIAlertController(
title: "Migrations Demo",
message: "This demo shows how to run incremental migrations and how to support multiple model versions in a single project.\n\nThe persistent store contains 10000 organisms, which gain/lose properties when the migration evolves/devolves them.\n\nYou can use the \"mutate\" button to change an organism's properties then migrate to a different model to see how its value gets affected.",
preferredStyle: .Alert
)
alert.addAction(UIAlertAction(title: "OK", style: .Cancel, handler: nil))
self.presentViewController(alert, animated: true, completion: nil)
let modelMetadata = withExtendedLifetime(DataStack(modelName: "MigrationDemo")) { let modelMetadata = withExtendedLifetime(DataStack(modelName: "MigrationDemo")) {
(dataStack: DataStack) -> ModelMetadata in (dataStack: DataStack) -> ModelMetadata in