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

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//
// Article+Database.swift
// NetNewsWire
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//
// Created by Brent Simmons on 7/3/17.
// Copyright © 2017 Ranchero Software. All rights reserved.
//
import Foundation
import RSDatabase
import Articles
import RSParser
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extension Article {
init?(accountID: String, row: FMResultSet, status: ArticleStatus) {
guard let articleID = row.string(forColumn: DatabaseKey.articleID) else {
assertionFailure("Expected articleID.")
return nil
}
guard let webFeedID = row.string(forColumn: DatabaseKey.feedID) else {
assertionFailure("Expected feedID.")
return nil
}
guard let uniqueID = row.string(forColumn: DatabaseKey.uniqueID) else {
assertionFailure("Expected uniqueID.")
return nil
}
let title = row.string(forColumn: DatabaseKey.title)
let contentHTML = row.string(forColumn: DatabaseKey.contentHTML)
let contentText = row.string(forColumn: DatabaseKey.contentText)
let url = row.string(forColumn: DatabaseKey.url)
let externalURL = row.string(forColumn: DatabaseKey.externalURL)
let summary = row.string(forColumn: DatabaseKey.summary)
let imageURL = row.string(forColumn: DatabaseKey.imageURL)
let datePublished = row.date(forColumn: DatabaseKey.datePublished)
let dateModified = row.date(forColumn: DatabaseKey.dateModified)
self.init(accountID: accountID, articleID: articleID, webFeedID: webFeedID, uniqueID: uniqueID, title: title, contentHTML: contentHTML, contentText: contentText, url: url, externalURL: externalURL, summary: summary, imageURL: imageURL, datePublished: datePublished, dateModified: dateModified, authors: nil, status: status)
}
init(parsedItem: ParsedItem, maximumDateAllowed: Date, accountID: String, webFeedID: String, status: ArticleStatus) {
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let authors = Author.authorsWithParsedAuthors(parsedItem.authors)
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// Deal with future datePublished and dateModified dates.
var datePublished = parsedItem.datePublished
if datePublished == nil {
datePublished = parsedItem.dateModified
}
if datePublished != nil, datePublished! > maximumDateAllowed {
datePublished = nil
}
var dateModified = parsedItem.dateModified
if dateModified != nil, dateModified! > maximumDateAllowed {
dateModified = nil
}
self.init(accountID: accountID, articleID: parsedItem.syncServiceID, webFeedID: webFeedID, uniqueID: parsedItem.uniqueID, title: parsedItem.title, contentHTML: parsedItem.contentHTML, contentText: parsedItem.contentText, url: parsedItem.url, externalURL: parsedItem.externalURL, summary: parsedItem.summary, imageURL: parsedItem.imageURL, datePublished: datePublished, dateModified: dateModified, authors: authors, status: status)
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}
private func addPossibleStringChangeWithKeyPath(_ comparisonKeyPath: KeyPath<Article,String?>, _ otherArticle: Article, _ key: String, _ dictionary: inout DatabaseDictionary) {
if self[keyPath: comparisonKeyPath] != otherArticle[keyPath: comparisonKeyPath] {
dictionary[key] = self[keyPath: comparisonKeyPath] ?? ""
}
}
func byAdding(_ authors: Set<Author>) -> Article {
if authors.isEmpty {
return self
}
return Article(accountID: self.accountID, articleID: self.articleID, webFeedID: self.webFeedID, uniqueID: self.uniqueID, title: self.title, contentHTML: self.contentHTML, contentText: self.contentText, url: self.url, externalURL: self.externalURL, summary: self.summary, imageURL: self.imageURL, datePublished: self.datePublished, dateModified: self.dateModified, authors: authors, status: self.status)
}
func changesFrom(_ existingArticle: Article) -> DatabaseDictionary? {
if self == existingArticle {
return nil
}
var d = DatabaseDictionary()
if uniqueID != existingArticle.uniqueID {
d[DatabaseKey.uniqueID] = uniqueID
}
addPossibleStringChangeWithKeyPath(\Article.title, existingArticle, DatabaseKey.title, &d)
addPossibleStringChangeWithKeyPath(\Article.contentHTML, existingArticle, DatabaseKey.contentHTML, &d)
addPossibleStringChangeWithKeyPath(\Article.contentText, existingArticle, DatabaseKey.contentText, &d)
addPossibleStringChangeWithKeyPath(\Article.url, existingArticle, DatabaseKey.url, &d)
addPossibleStringChangeWithKeyPath(\Article.externalURL, existingArticle, DatabaseKey.externalURL, &d)
addPossibleStringChangeWithKeyPath(\Article.summary, existingArticle, DatabaseKey.summary, &d)
addPossibleStringChangeWithKeyPath(\Article.imageURL, existingArticle, DatabaseKey.imageURL, &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 != existingArticle.datePublished {
if let updatedDatePublished = datePublished {
d[DatabaseKey.datePublished] = updatedDatePublished
}
}
if dateModified != existingArticle.dateModified {
if let updatedDateModified = dateModified {
d[DatabaseKey.dateModified] = updatedDateModified
}
}
return d.count < 1 ? nil : d
}
// static func articlesWithParsedItems(_ parsedItems: Set<ParsedItem>, _ accountID: String, _ feedID: String, _ statusesDictionary: [String: ArticleStatus]) -> Set<Article> {
// let maximumDateAllowed = Date().addingTimeInterval(60 * 60 * 24) // Allow dates up to about 24 hours ahead of now
// return Set(parsedItems.map{ Article(parsedItem: $0, maximumDateAllowed: maximumDateAllowed, accountID: accountID, feedID: feedID, status: statusesDictionary[$0.articleID]!) })
// }
static func articlesWithWebFeedIDsAndItems(_ webFeedID: String, _ items: Set<ParsedItem>, _ accountID: String, _ statusesDictionary: [String: ArticleStatus]) -> Set<Article> {
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let maximumDateAllowed = Date().addingTimeInterval(60 * 60 * 24) // Allow dates up to about 24 hours ahead of now
let feedArticles = Set(items.map{ Article(parsedItem: $0, maximumDateAllowed: maximumDateAllowed, accountID: accountID, webFeedID: webFeedID, status: statusesDictionary[$0.articleID]!) })
return feedArticles
}
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}
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extension Article: DatabaseObject {
public func databaseDictionary() -> DatabaseDictionary? {
var d = DatabaseDictionary()
d[DatabaseKey.articleID] = articleID
d[DatabaseKey.feedID] = webFeedID
d[DatabaseKey.uniqueID] = uniqueID
if let title = title {
d[DatabaseKey.title] = title
}
if let contentHTML = contentHTML {
d[DatabaseKey.contentHTML] = contentHTML
}
if let contentText = contentText {
d[DatabaseKey.contentText] = contentText
}
if let url = url {
d[DatabaseKey.url] = url
}
if let externalURL = externalURL {
d[DatabaseKey.externalURL] = externalURL
}
if let summary = summary {
d[DatabaseKey.summary] = summary
}
if let imageURL = imageURL {
d[DatabaseKey.imageURL] = imageURL
}
if let datePublished = datePublished {
d[DatabaseKey.datePublished] = datePublished
}
if let dateModified = dateModified {
d[DatabaseKey.dateModified] = dateModified
}
return d
}
public var databaseID: String {
return articleID
}
public func relatedObjectsWithName(_ name: String) -> [DatabaseObject]? {
switch name {
case RelationshipName.authors:
return databaseObjectArray(with: authors)
default:
return nil
}
}
private func databaseObjectArray<T: DatabaseObject>(with objects: Set<T>?) -> [DatabaseObject]? {
guard let objects = objects else {
return nil
}
return Array(objects)
}
}
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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() -> [DatabaseDictionary]? {
return self.compactMap { $0.databaseDictionary() }
}
}