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Merge pull request #149 from JUDA-Hrmi/refactoring/Post
[Edit] Post 및 Drink ViewModel 및 Service 파일 로직 수정중 #142
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| // | ||
| // PostService.swift | ||
| // JUDA | ||
| // | ||
| // Created by Minjae Kim on 3/8/24. | ||
| // | ||
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| import SwiftUI | ||
| import FirebaseFirestore | ||
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| @MainActor | ||
| final class PostViewModel: ObservableObject { | ||
| // 파이어베이스 연결 | ||
| private let db = Firestore.firestore() | ||
| private let firestorePostService = FirestorePostService() | ||
| private let firestoreDrinkService = FirestoreDrinkService() | ||
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| // 게시글 객체 배열 | ||
| @Published var posts = [Post]() | ||
| // 마지막 포스트 확인용(페이징) | ||
| @Published var lastQuerydocumentSnapshot: QueryDocumentSnapshot? | ||
| // 게시글 불러오기 또는 삭제 작업이 진행중인지 나타내는 상태 프로퍼티 | ||
| @Published var isLoading = false | ||
| } | ||
|
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| // MARK: Fetch | ||
| extension PostViewModel { | ||
| func getPostSortType(postSortType: PostSortType) -> Query { | ||
| let postRef = db.collection("posts") | ||
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| switch postSortType { | ||
| case .popularity: | ||
| return postRef.order(by: "likedCount", descending: true) | ||
| case .mostRecent: | ||
| return postRef.order(by: "postedTimeStamp", descending: true) | ||
| } | ||
| } | ||
|
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| func firstFetchPost(query: Query) async { | ||
| do { | ||
| let firstSnapshot = try await query.limit(to: 20).getDocuments() | ||
| lastQuerydocumentSnapshot = firstSnapshot.documents.last | ||
| isLoading = true | ||
| await fetchPosts(querySnapshots: firstSnapshot) | ||
| } catch { | ||
| print("posts paging fetch error \(error.localizedDescription)") | ||
| } | ||
| } | ||
|
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| func nextFetchPost(query: Query) async { | ||
| guard let lastQuerydocumentSnapshot = lastQuerydocumentSnapshot else { return } | ||
| do { | ||
| let nextSnapshot = try await query.limit(to: 20).start(afterDocument: lastQuerydocumentSnapshot).getDocuments() | ||
| self.lastQuerydocumentSnapshot = nextSnapshot.documents.last | ||
| await fetchPosts(querySnapshots: nextSnapshot) | ||
| } catch { | ||
| print("posts paging fetch error \(error.localizedDescription)") | ||
| } | ||
| } | ||
|
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| func fetchPosts(querySnapshots: QuerySnapshot) async { | ||
| var tasks: [Task<(Int, Post)?, Error>] = [] | ||
| let postRef = db.collection("posts") | ||
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| for (index, document) in querySnapshots.documents.enumerated() { | ||
| let task = Task<(Int, Post)?, Error> { | ||
| do { | ||
| let post = try await firestorePostService.fetchPostDocument(document: document.reference) | ||
| return (index, post) | ||
| } catch PostError.fieldFetch { | ||
| print("error :: fetchPostField() -> fetch post field data failure") | ||
| return nil | ||
| } catch PostError.documentFetch { | ||
| print("error :: fetchPostDocument() -> fetch post document data failure") | ||
| return nil | ||
| } | ||
| } | ||
| tasks.append(task) | ||
| } | ||
|
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| var results = [(Int, Post)]() | ||
| for task in tasks { | ||
| do { | ||
| if let result = try await task.value { | ||
| results.append(result) | ||
| } | ||
| } catch { | ||
| print(error.localizedDescription) | ||
| } | ||
| } | ||
| results.sort { $0.0 < $1.0 } | ||
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| let posts = results.map { $0.1 } | ||
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| self.posts.append(contentsOf: posts) | ||
| self.isLoading = false | ||
| } | ||
| } | ||
|
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| // MARK: delete | ||
| extension PostViewModel { | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| // | ||
| // RecordService.swift | ||
| // JUDA | ||
| // | ||
| // Created by Minjae Kim on 3/8/24. | ||
| // | ||
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| import Foundation |