Swift Firestore 删除嵌套在文档中的数组中的元素时出现问题

Question

感谢您查看不确定我缺少什么？

这是我的数据在 Firestore 中的样子

这里是评论模型。请注意，我应该在原始问题中显示这一点以获得更多上下文。

import SwiftUI
import FirebaseFirestoreSwift

struct Comment: Identifiable, Codable, Hashable {
    var id: String
    var userId: String
    var storyId: String
    var commentText: String
    var createdAt: Date
}

这是我删除 Firestore 数据的方法。没有错误被抛出？方法中的打印语句打印预期的 Firestore 文档 ID 和有问题的整个评论对象，但它也打印成功案例，并且 UI 或 FireStore 中没有任何变化。

func deleteComment(id: String, comment: Comment) {
        print(id, comment)
        //prints firestore document id and whole comment object
        
        let commentData: [String: Any] = [
            "id" : comment.id as Any,
            "userId" : comment.userId,
            "storyId" : comment.storyId,
            "commentText" : comment.commentText,
            "createdAt" : comment.createdAt
        ]
        
        store.collection(path).document(id).updateData([
            "comments" : FieldValue.arrayRemove([commentData])
        ]) { error in
            if let error = error {
                print("Unable to delete comment: \(error.localizedDescription)")
            }  else {
                print("Successfully deleted comment")
            }
        }
    }

Answer 1

事实证明，我的模型中 createdAt 属性的类型是 date。我编辑了我的原始问题以显示更多上下文的模型

所以我暂时只是删除了 createdAt 属性 感谢@jnpdx 提供的所有帮助。

 func deleteComment(docId: String,comment: Comment) {
        print("ID here",docId)
        print("Comment",comment)

        let commentData: [String: Any] = [
            "id" : comment.id,
            "userId" : comment.userId,
            "storyId" : comment.storyId,
            "commentText" : comment.commentText
        ]
   
        DispatchQueue.main.async {
            self.store.collection(self.path).document(docId).updateData([
                "comments" : FieldValue.arrayRemove([commentData])
            ]) { error in
                if let error = error {
                    print("Unable to delete comment: \(error.localizedDescription)")
                }  else {
                    print("Successfully deleted comment")
                }
            }
        }
       
    }

Answer 2

您只是从comments 部分中删除id。您应该像添加评论一样删除整个数据。

func deleteComment(id: String, comment: Comment) {
        print(id, comment.id)
         // print results QDobPXyOM2WSLUA0j7Cj 
         //55BAE423-B32F-41E3-8B2CB594BF9002D7

        let commentData: [String: Any] = [
            "id" : comment.id as Any,
            "userId" : comment.userId,
            "storyId" : comment.storyId,
            "commentText" : comment.commentText,
            "createdAt" : comment.createdAt
        ]

        let docRef = store.collection(path).document(id)

        docRef.updateData([
            "comments" : FieldValue.arrayRemove([commentData])
        ])
    }