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treatments : delete treatments older than 90 days 

deletion is done at app start up.
If user would go to treatments screen very fastly, after starting the app, then it may crash (only once). But that's probably not going to happen frequently
This commit is contained in:
Johan Degraeve 2022-04-30 11:36:33 +02:00
parent 8069c00b46
commit 7c5f20af5d
2 changed files with 44 additions and 5 deletions
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4
xdrip/Constants/ConstantsHousekeeping.swift
View File

@ -2,7 +2,7 @@ import Foundation
enum ConstantsHousekeeping {
/// how long to keep bgReadings can calibrations
static let retentionPeriodBgReadingsAndCalibrationsInDays = 90.0
/// how long to keep bgReadings can calibrations and treatments
static let retentionPeriodBgReadingsAndCalibrationsAndTreatmentsInDays = 90.0
}

45
xdrip/Utilities/HouseKeeping/HouseKeeper.swift
View File

@ -16,6 +16,9 @@ class HouseKeeper {
/// CalibrationsAccessor instance
private var calibrationsAccessor:CalibrationsAccessor
/// TreatmentEntryAccessor instance
private var treatmentsEntryAccessor: TreatmentEntryAccessor
/// CoreDataManager instance
private var coreDataManager: CoreDataManager
@ -30,9 +33,11 @@ class HouseKeeper {
self.calibrationsAccessor = CalibrationsAccessor(coreDataManager: coreDataManager)
self.treatmentsEntryAccessor = TreatmentEntryAccessor(coreDataManager: coreDataManager)
self.coreDataManager = coreDataManager
self.toDate = Date(timeIntervalSinceNow: -ConstantsHousekeeping.retentionPeriodBgReadingsAndCalibrationsInDays*24*3600)
self.toDate = Date(timeIntervalSinceNow: -ConstantsHousekeeping.retentionPeriodBgReadingsAndCalibrationsAndTreatmentsInDays*24*3600)
}
@ -62,11 +67,19 @@ class HouseKeeper {
}
// delete delete OldTreatments on the private managedObjectContext, asynchronously
managedObjectContext.perform {
// delete delete OldTreatments
self.deleteOldTreatments(on: managedObjectContext)
}
}
// MARK: - private functions
/// deletes old readings. Readings older than ConstantsHousekeeping.retentionPeriodBgReadingsInDays will be deleted
/// deletes old readings. Readings older than ConstantsHousekeeping.retentionPeriodBgReadingsAndCalibrationsAndTreatmentsInDays will be deleted
/// - managedObjectContext : the ManagedObjectContext to use
private func deleteOldReadings(on managedObjectContext: NSManagedObjectContext) {
@ -90,7 +103,7 @@ class HouseKeeper {
}
/// deletes old calibrations. Readings older than ConstantsHousekeeping.retentionPeriodBgReadingsInDays will be deleted
/// deletes old calibrations. Readings older than ConstantsHousekeeping.retentionPeriodBgReadingsAndCalibrationsAndTreatmentsInDays will be deleted
private func deleteOldCalibrations(on managedObjectContext: NSManagedObjectContext) {
// get old calibrations to delete
@ -120,5 +133,31 @@ class HouseKeeper {
}
}
/// deletes old treatments. Treatments older than ConstantsHousekeeping.retentionPeriodBgReadingsAndCalibrationsAndTreatmentsInDays will be deleted
/// - managedObjectContext : the ManagedObjectContext to use
private func deleteOldTreatments(on managedObjectContext: NSManagedObjectContext) {
// get old treatments to delete
let oldTreatments = self.treatmentsEntryAccessor.getTreatments(fromDate: nil, toDate: Date(timeIntervalSinceNow: -ConstantsHousekeeping.retentionPeriodBgReadingsAndCalibrationsAndTreatmentsInDays*24*3600), on: managedObjectContext)
if oldTreatments.count > 0 {
trace("in deleteOldTreatments, number of treatments to delete : %{public}@, to date = %{public}@", log: self.log, category: ConstantsLog.categoryHouseKeeper, type: .info, oldTreatments.count.description, self.toDate.description(with: .current))
}
// delete them
for oldTreatment in oldTreatments {
treatmentsEntryAccessor.delete(treatmentEntry: oldTreatment, on: managedObjectContext)
coreDataManager.saveChanges()
}
}
}