Unified detail views, model

CHDataManagement/Model/LocalizedTag.swift

@@ -2,6 +2,8 @@ import Foundation
 
 final class LocalizedTag: ObservableObject {
 
+    unowned let content: Content
+
     @Published
     var urlComponent: String
 
@@ -22,12 +24,14 @@ final class LocalizedTag: ObservableObject {
     /// The original url in the previous site layout
     let originalUrl: String?
 
-    init(urlComponent: String,
+    init(content: Content,
+         urlComponent: String,
          name: String,
          subtitle: String? = nil,
          description: String? = nil,
          thumbnail: FileResource? = nil,
          originalUrl: String? = nil) {
+        self.content = content
         self.urlComponent = urlComponent
         self.name = name
         self.subtitle = subtitle
@@ -35,4 +39,9 @@ final class LocalizedTag: ObservableObject {
         self.linkPreviewImage = thumbnail
         self.originalUrl = originalUrl
     }
+
+    func isValid(urlComponent: String) -> Bool {
+        content.isValidIdForTagOrPageOrPost(urlComponent) &&
+        !content.containsTag(withUrlComponent: urlComponent)
+    }
 }