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Fix reblogged statuses being pruned while still referenced, add workaround for crash

This commit is contained in:
Shadowfacts 2023-12-03 15:08:38 -05:00
parent 23f383a7f9
commit 34edd8a13f
3 changed files with 13 additions and 2 deletions
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3
Tusker/CoreData/Tusker.xcdatamodeld/Tusker.xcdatamodel/contents
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@ -123,7 +123,8 @@
<attribute name="url" optional="YES" attributeType="URI"/> <attribute name="url" optional="YES" attributeType="URI"/>
<attribute name="visibilityString" attributeType="String"/> <attribute name="visibilityString" attributeType="String"/>
<relationship name="account" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="Account" inverseName="statuses" inverseEntity="Account"/> <relationship name="account" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="Account" inverseName="statuses" inverseEntity="Account"/>
<relationship name="reblog" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="Status"/> <relationship name="reblog" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="Status" inverseName="reblogs" inverseEntity="Status"/>
<relationship name="reblogs" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="Status" inverseName="reblog" inverseEntity="Status"/>
<relationship name="timelines" optional="YES" toMany="YES" deletionRule="Nullify" destinationEntity="TimelineState" inverseName="statuses" inverseEntity="TimelineState"/> <relationship name="timelines" optional="YES" toMany="YES" deletionRule="Nullify" destinationEntity="TimelineState" inverseName="statuses" inverseEntity="TimelineState"/>
<uniquenessConstraints> <uniquenessConstraints>
<uniquenessConstraint> <uniquenessConstraint>

2
Tusker/Scenes/MainSceneDelegate.swift
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@ -148,7 +148,7 @@ class MainSceneDelegate: UIResponder, UIWindowSceneDelegate, TuskerSceneDelegate
minDate.addTimeInterval(-7 * 24 * 60 * 60) minDate.addTimeInterval(-7 * 24 * 60 * 60)
let statusReq: NSFetchRequest<NSFetchRequestResult> = StatusMO.fetchRequest() let statusReq: NSFetchRequest<NSFetchRequestResult> = StatusMO.fetchRequest()
statusReq.predicate = NSPredicate(format: "(lastFetchedAt = nil) OR (lastFetchedAt < %@)", minDate as NSDate) statusReq.predicate = NSPredicate(format: "((lastFetchedAt = nil) OR (lastFetchedAt < %@)) AND (reblogs.@count = 0)", minDate as NSDate)
let deleteStatusReq = NSBatchDeleteRequest(fetchRequest: statusReq) let deleteStatusReq = NSBatchDeleteRequest(fetchRequest: statusReq)
deleteStatusReq.resultType = .resultTypeCount deleteStatusReq.resultType = .resultTypeCount
if let res = try? context.execute(deleteStatusReq) as? NSBatchDeleteResult { if let res = try? context.execute(deleteStatusReq) as? NSBatchDeleteResult {

10
Tusker/Screens/Timeline/TimelineViewController.swift
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@ -445,6 +445,16 @@ class TimelineViewController: UIViewController, TimelineLikeCollectionViewContro
if let status = mastodonController.persistentContainer.status(for: id) { if let status = mastodonController.persistentContainer.status(for: id) {
// touch the status so that, even if it's old, it doesn't get pruned when we go into the background // touch the status so that, even if it's old, it doesn't get pruned when we go into the background
status.touch() status.touch()
// there was a bug where th the reblogged status would get pruned even when it was still refernced by the reblog
// as a temporary workaround, until there are no longer user db's in this state,
// check if the reblog is invalid and reload the status if so
if let reblog = status.reblog,
// force the fault to fire
case _ = reblog.id,
reblog.isDeleted {
unloaded.append(id)
}
} else { } else {
unloaded.append(id) unloaded.append(id)
} }