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signalapp
GitHub Repository: signalapp/Signal-iOS
Path: blob/main/SignalServiceKit/Storage/Database/SDSCodableModel/SDSCodableModelDatabaseInterface+Remove.swift
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//
// Copyright 2023 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
//

extension SDSCodableModelDatabaseInterfaceImpl {

    /// Remove a model from the database.
    func removeModel<Model: SDSCodableModel>(
        _ model: Model,
        transaction: DBWriteTransaction,
    ) {
        model.anyWillRemove(transaction: transaction)

        removeModelFromDatabase(model, transaction: transaction)

        model.anyDidRemove(transaction: transaction)
    }

    private func removeModelFromDatabase<Model: SDSCodableModel>(
        _ model: Model,
        transaction: DBWriteTransaction,
    ) {
        failIfThrows {
            let sql: String = """
                DELETE FROM \(Model.databaseTableName.quotedDatabaseIdentifier)
                WHERE uniqueId = ?
            """

            let statement = try transaction.database.cachedStatement(sql: sql)
            try statement.setArguments([model.uniqueId])
            try statement.execute()
        }
    }
}