Files
NetNewsWire/Frameworks/RSDatabase/Related Objects/DatabaseRelatedObjectsTable.swift
2017-09-11 06:46:32 -07:00

39 lines
1.1 KiB
Swift

//
// DatabaseRelatedObjectsTable.swift
// RSDatabase
//
// Created by Brent Simmons on 9/2/17.
// Copyright © 2017 Ranchero Software, LLC. All rights reserved.
//
import Foundation
public protocol DatabaseRelatedObjectsTable: DatabaseTable {
var databaseIDKey: String { get}
func fetchObjectsWithIDs(_ databaseIDs: Set<String>, in database: FMDatabase) -> [DatabaseObject]
func objectsWithResultSet(_ resultSet: FMResultSet) -> [DatabaseObject]
func objectWithRow(_ row: FMResultSet) -> DatabaseObject?
func save(_ objects: [DatabaseObject], in database: FMDatabase)
}
public extension DatabaseRelatedObjectsTable {
// MARK: Default implementations
func fetchObjectsWithIDs(_ databaseIDs: Set<String>, in database: FMDatabase) -> [DatabaseObject] {
guard let resultSet = selectRowsWhere(key: databaseIDKey, inValues: Array(databaseIDs), in: database) else {
return [DatabaseObject]()
}
return objectsWithResultSet(resultSet)
}
func objectsWithResultSet(_ resultSet: FMResultSet) -> [DatabaseObject] {
return resultSet.flatMap(objectWithRow)
}
}