70 lines
1.8 KiB
Objective-C
70 lines
1.8 KiB
Objective-C
//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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#import "OWSDatabaseMigration.h"
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#import <SignalServiceKit/TSStorageManager.h>
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NS_ASSUME_NONNULL_BEGIN
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@implementation OWSDatabaseMigration
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- (instancetype)initWithStorageManager:(TSStorageManager *)storageManager
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{
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self = [super initWithUniqueId:[self.class migrationId]];
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if (!self) {
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return self;
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}
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_storageManager = storageManager;
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return self;
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}
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+ (MTLPropertyStorage)storageBehaviorForPropertyWithKey:(NSString *)propertyKey
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{
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if ([propertyKey isEqualToString:@"storageManager"]) {
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return MTLPropertyStorageNone;
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} else {
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return [super storageBehaviorForPropertyWithKey:propertyKey];
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}
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}
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+ (NSString *)migrationId
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{
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@throw [NSException
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exceptionWithName:NSInternalInconsistencyException
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reason:[NSString stringWithFormat:@"Must override %@ in subclass", NSStringFromSelector(_cmd)]
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userInfo:nil];
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}
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+ (NSString *)collection
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{
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// We want all subclasses in the same collection
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return @"OWSDatabaseMigration";
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}
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- (void)runUpWithTransaction:(YapDatabaseReadWriteTransaction *)transaction
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{
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@throw [NSException
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exceptionWithName:NSInternalInconsistencyException
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reason:[NSString stringWithFormat:@"Must override %@ in subclass", NSStringFromSelector(_cmd)]
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userInfo:nil];
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}
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- (void)runUp
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{
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[self.storageManager.newDatabaseConnection
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asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull transaction) {
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[self runUpWithTransaction:transaction];
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}
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completionBlock:^{
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DDLogInfo(@"Completed migration %@", self.uniqueId);
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[self save];
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}];
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}
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@end
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NS_ASSUME_NONNULL_END
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