starred/CoreStore-JohnEstropia
1
0
Fork 0
mirror of https://github.com/JohnEstropia/CoreStore.git synced 2026-03-20 16:43:55 +01:00
Code Issues 95 Packages Projects Releases 10 Wiki Activity

WIP: allow migrations for CoreStoreObjects

Browse Source
This commit is contained in:
John Estropia
2017-04-11 19:13:35 +09:00
parent e5ef4992d3
commit 9f3db61ff7
27 changed files with 1146 additions and 691 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
CoreStoreDemo/CoreStoreDemo/MIgrations Demo/MigrationsDemoViewController.swift
View File

@@ -60,7 +60,7 @@ class MigrationsDemoViewController: UIViewController, ListObserver, UITableViewD
}
for model in models {
if model.version == storeVersion {
if model.schemaHistory.currentModelVersion == storeVersion {
return model
}
@@ -141,29 +141,35 @@ class MigrationsDemoViewController: UIViewController, ListObserver, UITableViewD
// MARK: Private
private typealias ModelMetadata = (label: String, version: String, entityType: NSManagedObject.Type, migrationChain: MigrationChain)
private typealias ModelMetadata = (label: String, entityType: NSManagedObject.Type, schemaHistory: SchemaHistory)
private let models: [ModelMetadata] = [
(
label: "Model V1",
version: "MigrationDemo",
entityType: OrganismV1.self,
migrationChain: ["MigrationDemoV3", "MigrationDemoV2", "MigrationDemo"]
schemaHistory: SchemaHistory(
modelName: "MigrationDemo",
migrationChain: ["MigrationDemoV3", "MigrationDemoV2", "MigrationDemo"]
)
),
(
label: "Model V2",
version: "MigrationDemoV2",
entityType: OrganismV2.self,
migrationChain: [
"MigrationDemo": "MigrationDemoV2",
"MigrationDemoV3": "MigrationDemoV2"
]
schemaHistory: SchemaHistory(
modelName: "MigrationDemo",
migrationChain: [
"MigrationDemo": "MigrationDemoV2",
"MigrationDemoV3": "MigrationDemoV2"
]
)
),
(
label: "Model V3",
version: "MigrationDemoV3",
entityType: OrganismV3.self,
migrationChain: ["MigrationDemo", "MigrationDemoV2", "MigrationDemoV3"]
schemaHistory: SchemaHistory(
modelName: "MigrationDemo",
migrationChain: ["MigrationDemo", "MigrationDemoV2", "MigrationDemoV3"]
)
)
]
@@ -210,17 +216,14 @@ class MigrationsDemoViewController: UIViewController, ListObserver, UITableViewD
private func selectModelVersion(_ model: ModelMetadata) {
if self.dataStack?.modelVersion == model.version {
if self.dataStack?.modelVersion == model.schemaHistory.currentModelVersion {
return
}
self.set(dataStack: nil, model: nil, scrollToSelection: false) // explicitly trigger NSPersistentStore cleanup by deallocating the stack
let dataStack = DataStack(
modelName: "MigrationDemo",
migrationChain: model.migrationChain
)
let dataStack = DataStack(schemaHistory: model.schemaHistory)
self.setEnabled(false)
let progress = dataStack.addStorage(
@@ -313,7 +316,13 @@ class MigrationsDemoViewController: UIViewController, ListObserver, UITableViewD
if let dataStack = dataStack, let model = model {
self.segmentedControl?.selectedSegmentIndex = self.models.map { $0.version }.index(of: model.version)!
self.segmentedControl?.selectedSegmentIndex = self.models
.index(
where: { (_, _, schemaHistory) -> Bool in
schemaHistory.currentModelVersion == model.schemaHistory.currentModelVersion
}
)!
self._dataStack = dataStack
let listMonitor = dataStack.monitorList(From(model.entityType), OrderBy(.descending("dna")))