Question

我试图通过波纹管功能来实现这一点。但是问题在于，由于某种原因，这样做会导致thumbRef.delete {无法运行。相反，它只会永远循环。

我该如何进行这项工作？

注意：我要删除文件夹中的所有内容。如果我可以删除整个文件夹，则可以。

private var done = false

private func deletePostFromStorage(selectedPost: Post) {
    let postID = selectedPost.media.postID
    let uid = selectedPost.user.userID
    print(postID, " tytytytyty ", uid)

    // Create a reference to the file to delete
    let storageRef = Storage.storage().reference().child(uid!).child(postID!)
    var i = 1
    while !done {
        let thumbRef = storageRef.child("media\(i).jpg")
        let vidRef2 = storageRef.child("media\(i).mov")
        let imageRef3 = storageRef.child("media\(i)")

        print(done, " INSIDE THE WHILE LOOP ", i)
        // Delete the file
        thumbRef.delete { error in
            print("fhdjskfhdsakjfhkadsl")

            if let error = error {
                // Uh-oh, an error occurred!
                print("thumb error in delete")
                imageRef3.delete(completion: { (error) in
                    if let error = error {
                        //error occured no more medias (no vid no image and no thumbnail with this media)
                        self.done = true
                        print("image error in delete")
                    } else {
                        //successfull deletion
                        print("image deleted")
                    }
                })
            } else {
                print("thumb delete succes")

                // File deleted successfully
                vidRef2.delete(completion: { (error) in
                    if let error = error {
                        //error occured
                        print("video error in delete")
                    } else {
                        //successfull deletion
                        print("video deleted")
                    }
                })
            }

            if i > 30 {
                //this is only for testing make sure its not endless
                self.done = true
            }
        }
        i+=1
    }
}

我还在后端中试用此功能：

    function deletePostFromStorage(uid: string, postID: string) {
  const gcs = require('@google-cloud/storage')();
  const functions = require('firebase-functions');

    //const bucket = gcs.bucket(functions.config().firebase.storageBucket);
    const bucket = admin.storage().bucket();

    return bucket.deleteFiles({
      prefix: `${uid}/${postID}/`
    }, function(err) {
      if (err) {
        console.log(err);
      } else {
        console.log(`All the Firebase Storage files in ${uid}/${postID}/ have been deleted`);
      }
    });
}

但是我收到类似这样的错误：

    ERROR: /Users/=/Desktop/FinalAppPrjv2/firefunctions/functions/src/index.ts:205:23 - Module '@google-cloud/storage' is not listed as dependency in package.json
ERROR: /Users/=/Desktop/FinalAppPrjv2/firefunctions/functions/src/index.ts:206:9 - Shadowed name: 'functions'
ERROR: /Users/=/Desktop/FinalAppPrjv2/firefunctions/functions/src/index.ts:211:12 - Expression has type `void`. Put it on its own line as a statement.

Answer 1

我可以使用以下后端功能来完成这项工作：

    function deletePostFromStorage(uid: string, postID: string) {
  //const gcs = require('@google-cloud/storage')();
  //const functions = require('firebase-functions');

    //const bucket = gcs.bucket(functions.config().firebase.storageBucket);
    const bucket = admin.storage().bucket();

    bucket.deleteFiles({
      prefix: `${uid}/${postID}/`
    }, function(err) {
      if (err) {
        console.log(err);
      } else {
        console.log(`All the Firebase Storage files in ${uid}/${postID}/ have been deleted`);
      }
    });
}

如何从Firebase存储中删除文件夹？

1 个答案: