190 lines
6.3 KiB
Swift
190 lines
6.3 KiB
Swift
//
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// Article+Database.swift
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// Database
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//
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// Created by Brent Simmons on 7/3/17.
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// Copyright © 2017 Ranchero Software. All rights reserved.
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//
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import Foundation
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import RSDatabase
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import Data
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import RSParser
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extension Article {
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init(databaseArticle: DatabaseArticle, accountID: String, authors: Set<Author>?, attachments: Set<Attachment>?) {
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self.init(accountID: accountID, articleID: databaseArticle.articleID, feedID: databaseArticle.feedID, uniqueID: databaseArticle.uniqueID, title: databaseArticle.title, contentHTML: databaseArticle.contentHTML, contentText: databaseArticle.contentText, url: databaseArticle.url, externalURL: databaseArticle.externalURL, summary: databaseArticle.summary, imageURL: databaseArticle.imageURL, bannerImageURL: databaseArticle.bannerImageURL, datePublished: databaseArticle.datePublished, dateModified: databaseArticle.dateModified, authors: authors, attachments: attachments, status: databaseArticle.status)
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}
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init(parsedItem: ParsedItem, accountID: String, feedID: String, status: ArticleStatus) {
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let authors = Author.authorsWithParsedAuthors(parsedItem.authors)
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let attachments = Attachment.attachmentsWithParsedAttachments(parsedItem.attachments)
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self.init(accountID: accountID, articleID: parsedItem.syncServiceID, feedID: feedID, uniqueID: parsedItem.uniqueID, title: parsedItem.title, contentHTML: parsedItem.contentHTML, contentText: parsedItem.contentText, url: parsedItem.url, externalURL: parsedItem.externalURL, summary: parsedItem.summary, imageURL: parsedItem.imageURL, bannerImageURL: parsedItem.bannerImageURL, datePublished: parsedItem.datePublished ?? parsedItem.dateModified, dateModified: parsedItem.dateModified, authors: authors, attachments: attachments, status: status)
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}
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private func addPossibleStringChangeWithKeyPath(_ comparisonKeyPath: KeyPath<Article,String?>, _ otherArticle: Article, _ key: String, _ dictionary: NSMutableDictionary) {
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if self[keyPath: comparisonKeyPath] != otherArticle[keyPath: comparisonKeyPath] {
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dictionary.addOptionalStringDefaultingEmpty(self[keyPath: comparisonKeyPath], key)
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}
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}
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func changesFrom(_ otherArticle: Article) -> NSDictionary? {
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if self == otherArticle {
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return nil
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}
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let d = NSMutableDictionary()
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if uniqueID != otherArticle.uniqueID {
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// This should be super-rare, if ever.
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if !otherArticle.uniqueID.isEmpty {
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d[DatabaseKey.uniqueID] = otherArticle.uniqueID
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}
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}
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addPossibleStringChangeWithKeyPath(\Article.title, otherArticle, DatabaseKey.title, d)
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addPossibleStringChangeWithKeyPath(\Article.contentHTML, otherArticle, DatabaseKey.contentHTML, d)
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addPossibleStringChangeWithKeyPath(\Article.contentText, otherArticle, DatabaseKey.contentText, d)
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addPossibleStringChangeWithKeyPath(\Article.url, otherArticle, DatabaseKey.url, d)
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addPossibleStringChangeWithKeyPath(\Article.externalURL, otherArticle, DatabaseKey.externalURL, d)
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addPossibleStringChangeWithKeyPath(\Article.summary, otherArticle, DatabaseKey.summary, d)
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addPossibleStringChangeWithKeyPath(\Article.imageURL, otherArticle, DatabaseKey.imageURL, d)
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addPossibleStringChangeWithKeyPath(\Article.bannerImageURL, otherArticle, DatabaseKey.bannerImageURL, d)
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// If updated versions of dates are nil, and we have existing dates, keep the existing dates.
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// This is data that’s good to have, and it’s likely that a feed removing dates is doing so in error.
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if datePublished != otherArticle.datePublished {
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if let updatedDatePublished = otherArticle.datePublished {
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d[DatabaseKey.datePublished] = updatedDatePublished
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}
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}
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if dateModified != otherArticle.dateModified {
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if let updatedDateModified = otherArticle.dateModified {
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d[DatabaseKey.dateModified] = updatedDateModified
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}
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}
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if d.count < 1 {
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return nil
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}
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return d
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}
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static func articlesWithParsedItems(_ parsedItems: Set<ParsedItem>, _ accountID: String, _ feedID: String, _ statusesDictionary: [String: ArticleStatus]) -> Set<Article> {
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return Set(parsedItems.map{ Article(parsedItem: $0, accountID: accountID, feedID: feedID, status: statusesDictionary[$0.articleID]!) })
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}
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}
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extension Article: DatabaseObject {
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public func databaseDictionary() -> NSDictionary? {
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let d = NSMutableDictionary()
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d[DatabaseKey.articleID] = articleID
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d[DatabaseKey.feedID] = feedID
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d[DatabaseKey.uniqueID] = uniqueID
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d.addOptionalString(title, DatabaseKey.title)
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d.addOptionalString(contentHTML, DatabaseKey.contentHTML)
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d.addOptionalString(contentText, DatabaseKey.contentText)
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d.addOptionalString(url, DatabaseKey.url)
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d.addOptionalString(externalURL, DatabaseKey.externalURL)
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d.addOptionalString(summary, DatabaseKey.summary)
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d.addOptionalString(imageURL, DatabaseKey.imageURL)
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d.addOptionalString(bannerImageURL, DatabaseKey.bannerImageURL)
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d.addOptionalDate(datePublished, DatabaseKey.datePublished)
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d.addOptionalDate(dateModified, DatabaseKey.dateModified)
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return (d.copy() as! NSDictionary)
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}
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public var databaseID: String {
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return articleID
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}
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public func relatedObjectsWithName(_ name: String) -> [DatabaseObject]? {
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switch name {
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case RelationshipName.authors:
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return databaseObjectArray(with: authors)
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case RelationshipName.attachments:
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return databaseObjectArray(with: attachments)
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default:
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return nil
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}
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}
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private func databaseObjectArray<T: DatabaseObject>(with objects: Set<T>?) -> [DatabaseObject]? {
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guard let objects = objects else {
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return nil
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}
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return Array(objects)
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}
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}
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extension Set where Element == Article {
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func statuses() -> Set<ArticleStatus> {
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return Set<ArticleStatus>(map { $0.status })
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}
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func dictionary() -> [String: Article] {
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var d = [String: Article]()
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for article in self {
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d[article.articleID] = article
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}
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return d
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}
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func databaseObjects() -> [DatabaseObject] {
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return self.map{ $0 as DatabaseObject }
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}
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func databaseDictionaries() -> [NSDictionary]? {
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return self.compactMap { $0.databaseDictionary() }
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}
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}
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private extension NSMutableDictionary {
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func addOptionalString(_ value: String?, _ key: String) {
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if let value = value {
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self[key] = value
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}
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}
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func addOptionalStringDefaultingEmpty(_ value: String?, _ key: String) {
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if let value = value {
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self[key] = value
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}
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else {
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self[key] = ""
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}
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}
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func addOptionalDate(_ date: Date?, _ key: String) {
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if let date = date {
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self[key] = date as NSDate
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}
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}
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}
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