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ccb4a88742
git remote add ssk ../SignalServiceKit git remote update git merge -s ours --allow-unrelated-histories --no-commit ssk/master git read-tree --prefix=SignalServiceKit -u ssk/master git commit
44 lines
1.7 KiB
Objective-C
44 lines
1.7 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 "TSDatabaseSecondaryIndexes.h"
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#import "TSInteraction.h"
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#define TSTimeStampSQLiteIndex @"messagesTimeStamp"
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@implementation TSDatabaseSecondaryIndexes
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+ (YapDatabaseSecondaryIndex *)registerTimeStampIndex {
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YapDatabaseSecondaryIndexSetup *setup = [[YapDatabaseSecondaryIndexSetup alloc] init];
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[setup addColumn:TSTimeStampSQLiteIndex withType:YapDatabaseSecondaryIndexTypeReal];
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YapDatabaseSecondaryIndexWithObjectBlock block =
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^(YapDatabaseReadTransaction *transaction, NSMutableDictionary *dict, NSString *collection, NSString *key, id object) {
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if ([object isKindOfClass:[TSInteraction class]]) {
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TSInteraction *interaction = (TSInteraction *)object;
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[dict setObject:@(interaction.timestamp) forKey:TSTimeStampSQLiteIndex];
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}
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};
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YapDatabaseSecondaryIndexHandler *handler = [YapDatabaseSecondaryIndexHandler withObjectBlock:block];
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YapDatabaseSecondaryIndex *secondaryIndex = [[YapDatabaseSecondaryIndex alloc] initWithSetup:setup handler:handler];
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return secondaryIndex;
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}
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+ (void)enumerateMessagesWithTimestamp:(uint64_t)timestamp
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withBlock:(void (^)(NSString *collection, NSString *key, BOOL *stop))block
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usingTransaction:(YapDatabaseReadWriteTransaction *)transaction {
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NSString *formattedString = [NSString stringWithFormat:@"WHERE %@ = %lld", TSTimeStampSQLiteIndex, timestamp];
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YapDatabaseQuery *query = [YapDatabaseQuery queryWithFormat:formattedString];
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[[transaction ext:@"idx"] enumerateKeysMatchingQuery:query usingBlock:block];
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}
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@end
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