NetNewsWire/Frameworks/Database/Extensions/Article+Database.swift

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//
// Article+Database.swift
// Database
//
// Created by Brent Simmons on 7/3/17.
// Copyright © 2017 Ranchero Software. All rights reserved.
//
import Foundation
import RSDatabase
import Data
import RSParser
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extension Article {
init(databaseArticle: DatabaseArticle, accountID: String, authors: Set<Author>?, attachments: Set<Attachment>?, tags: Set<String>?) {
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, tags: tags, attachments: attachments, status: databaseArticle.status)
}
init(parsedItem: ParsedItem, accountID: String, feedID: String, status: ArticleStatus) {
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let authors = Author.authorsWithParsedAuthors(parsedItem.authors)
let attachments = Attachment.attachmentsWithParsedAttachments(parsedItem.attachments)
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, dateModified: parsedItem.dateModified, authors: authors, tags: parsedItem.tags, attachments: attachments, status: status)
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}
private func addPossibleStringChangeWithKeyPath(_ comparisonKeyPath: KeyPath<Article,String?>, _ otherArticle: Article, _ key: String, _ dictionary: NSMutableDictionary) {
if self[keyPath: comparisonKeyPath] != otherArticle[keyPath: comparisonKeyPath] {
dictionary.addOptionalStringDefaultingEmpty(self[keyPath: comparisonKeyPath], key)
}
}
func changesFrom(_ otherArticle: Article) -> NSDictionary? {
if self == otherArticle {
return nil
}
let d = NSMutableDictionary()
if uniqueID != otherArticle.uniqueID {
// This should be super-rare, if ever.
if !otherArticle.uniqueID.isEmpty {
d[DatabaseKey.uniqueID] = otherArticle.uniqueID
}
}
addPossibleStringChangeWithKeyPath(\Article.title, otherArticle, DatabaseKey.title, d)
addPossibleStringChangeWithKeyPath(\Article.contentHTML, otherArticle, DatabaseKey.contentHTML, d)
addPossibleStringChangeWithKeyPath(\Article.contentText, otherArticle, DatabaseKey.contentText, d)
addPossibleStringChangeWithKeyPath(\Article.url, otherArticle, DatabaseKey.url, d)
addPossibleStringChangeWithKeyPath(\Article.externalURL, otherArticle, DatabaseKey.externalURL, d)
addPossibleStringChangeWithKeyPath(\Article.summary, otherArticle, DatabaseKey.summary, d)
addPossibleStringChangeWithKeyPath(\Article.imageURL, otherArticle, DatabaseKey.imageURL, d)
addPossibleStringChangeWithKeyPath(\Article.bannerImageURL, otherArticle, DatabaseKey.bannerImageURL, d)
// If updated versions of dates are nil, and we have existing dates, keep the existing dates.
// This is data thats good to have, and its likely that a feed removing dates is doing so in error.
if datePublished != otherArticle.datePublished {
if let updatedDatePublished = otherArticle.datePublished {
d[DatabaseKey.datePublished] = updatedDatePublished
}
}
if dateModified != otherArticle.dateModified {
if let updatedDateModified = otherArticle.dateModified {
d[DatabaseKey.dateModified] = updatedDateModified
}
}
if d.count < 1 {
return nil
}
return d
}
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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extension Article: DatabaseObject {
public func databaseDictionary() -> NSDictionary? {
let d = NSMutableDictionary()
d[DatabaseKey.articleID] = articleID
d[DatabaseKey.feedID] = feedID
d[DatabaseKey.uniqueID] = uniqueID
d.addOptionalString(title, DatabaseKey.title)
d.addOptionalString(contentHTML, DatabaseKey.contentHTML)
d.addOptionalString(contentText, DatabaseKey.contentText)
d.addOptionalString(url, DatabaseKey.url)
d.addOptionalString(externalURL, DatabaseKey.externalURL)
d.addOptionalString(summary, DatabaseKey.summary)
d.addOptionalString(imageURL, DatabaseKey.imageURL)
d.addOptionalString(bannerImageURL, DatabaseKey.bannerImageURL)
d.addOptionalDate(datePublished, DatabaseKey.datePublished)
d.addOptionalDate(dateModified, DatabaseKey.dateModified)
return (d.copy() as! NSDictionary)
}
public var databaseID: String {
get {
return articleID
}
}
}
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extension Set where Element == Article {
func statuses() -> Set<ArticleStatus> {
return Set<ArticleStatus>(map { $0.status })
}
func dictionary() -> [String: Article] {
var d = [String: Article]()
for article in self {
d[article.articleID] = article
}
return d
}
func databaseObjects() -> [DatabaseObject] {
return self.map{ $0 as DatabaseObject }
}
func databaseDictionaries() -> [NSDictionary]? {
return self.flatMap { $0.databaseDictionary() }
}
}
private extension NSMutableDictionary {
func addOptionalString(_ value: String?, _ key: String) {
if let value = value {
self[key] = value
}
}
func addOptionalStringDefaultingEmpty(_ value: String?, _ key: String) {
if let value = value {
self[key] = value
}
else {
self[key] = ""
}
}
func addOptionalDate(_ date: Date?, _ key: String) {
if let date = date {
self[key] = date as NSDate
}
}
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}