35 lines
1.6 KiB
Swift
35 lines
1.6 KiB
Swift
// Copyright © 2023 Rangeproof Pty Ltd. All rights reserved.
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import Foundation
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import GRDB
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import SessionUtilitiesKit
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/// This migration adds a table to track pending read receipts (it's possible to receive a read receipt message before getting the original
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/// message due to how one-to-one conversations work, by storing pending read receipts we should be able to prevent this case)
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enum _011_AddPendingReadReceipts: Migration {
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static let target: TargetMigrations.Identifier = .messagingKit
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static let identifier: String = "AddPendingReadReceipts" // stringlint:disable
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static let needsConfigSync: Bool = false
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static let minExpectedRunDuration: TimeInterval = 0.01
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static func migrate(_ db: Database) throws {
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try db.create(table: PendingReadReceipt.self) { t in
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t.column(.threadId, .text)
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.notNull()
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.indexed() // Quicker querying
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.references(SessionThread.self, onDelete: .cascade) // Delete if Thread deleted
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t.column(.interactionTimestampMs, .integer)
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.notNull()
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.indexed() // Quicker querying
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t.column(.readTimestampMs, .integer)
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.notNull()
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t.column(.serverExpirationTimestamp, .double)
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.notNull()
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t.primaryKey([.threadId, .interactionTimestampMs])
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}
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Storage.update(progress: 1, for: self, in: target) // In case this is the last migration
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}
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}
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