Mike3355's questions

我正在尝试将 userID 添加到 MongoDB 中的 likes 字段。此字段将是一个字符串数组[]string。它当前为空，但这不应该是问题，因为使用的是"$set"。我还尝试手动将字段设为数组并使用$setOnInsert和$addToSet代替，但$set无济于事。

我正在使用这个结构创建文档：

comment := entity.Comment{
    PostID:    postID,
    Content:   content,
    AuthorID:  authorID,
    Likes:     []string{},
    Dislikes:  []string{},
    Votes:     []string{},
    CreatedAt: time.Now(),
}

相关文档在数据库中如下所示：

{"_id":{"$oid":"67de0487653132119ba14548"},"postid":"67de00a0eea2fe8f5a55e1da","content":"awesome Pizza day","authorid":"3204aa18-2006-4aa1-ad88-1b71256d8a36","createdat":{"$date":{"$numberLong":"1742603399198"}},"updatedat":{"$date":{"$numberLong":"1742603992797"}},"likes":null,"dislikes":null,"votes":null}

现在，我正在尝试向中添加一个用户 ID 字符串"likes":null,"dislikes":null。

它在 UpdateOne 处因写入异常而失败。userID和comment.ObjectId不为空，并且comment.ObjectId确实存在于数据库中。目前只有一条评论。

func (r *CommentsRepository) ToggleLikeComment(ctx context.Context, comment *entity.Comment, userID string) error {
    filter := bson.D{{Key: "_id", Value: comment.ObjectId}}
    update := bson.D{}

    // Check if user already disliked
    dislikeFilter := bson.D{{Key: "_id", Value: comment.ObjectId}, {Key: "dislikes", Value: userID}}
    dislikeCount, err := r.collection.CountDocuments(ctx, dislikeFilter)
    if err != nil {
        return err
    }
    if dislikeCount > 0 {
        // Remove dislike
        update = append(update, bson.E{Key: "$pull", Value: bson.D{{Key: "dislikes", Value: userID}}})
    }

    // Check if user already liked
    likeFilter := bson.D{{Key: "_id", Value: comment.ObjectId}, {Key: "likes", Value: userID}}
    likeCount, err := r.collection.CountDocuments(ctx, likeFilter)
    if err != nil {
        return err
    }
    if likeCount > 0 {
        // Remove like
        update = append(update, bson.E{Key: "$pull", Value: bson.D{{Key: "likes", Value: userID}}})
    } else {
        // Add like
        update = append(update, bson.E{Key: "$set", Value: bson.D{{Key: "likes", Value: userID}}})
    }
    update = append(update, bson.E{Key: "$set", Value: bson.D{{Key: "updatedat", Value: time.Now()}}})

    // fails to write here...
    _, err = r.collection.UpdateOne(ctx, filter, bson.D{{Key: "$set", Value: update}})
    return err
}

在@aneroid 的帮助下，我能够调整代码。以下是最终有效的查询

likeFilter := bson.D{
        {Key: "_id", Value: objectID},
        {Key: "likes", Value: bson.D{{Key: "$ne", Value: userID}}},
    }
    likeUpdate := bson.A{
        bson.D{{Key: "$set", Value: bson.D{
            {Key: "likes", Value: bson.D{
                {Key: "$cond", Value: bson.D{
                    {Key: "if", Value: bson.D{{Key: "$eq", Value: bson.A{"$likes", nil}}}},
                    {Key: "then", Value: bson.A{userID}},
                    {Key: "else", Value: bson.D{{Key: "$concatArrays", Value: bson.A{"$likes", bson.A{userID}}}}},
                }},
            }},
            {Key: "updatedat", Value: time.Now()},
        }}},
    }
    result, err := r.collection.UpdateOne(ctx, likeFilter, likeUpdate)

我有一个 dockerfile 给我一个错误，内容如下

exec /usr/local/bin/script.sh：没有此文件或目录

该文件肯定存在。我#!/bin/zsh在脚本顶部有 ，当我将其更改为 时，#!/usr/bin/env bash我收到一条错误消息env: can't execute 'bash': No such file or directory。没有隐藏字符cat -e script.sh，并且该文件是可执行的。

脚本

#!/bin/zsh

#API_URL="http://$API_HOST:$API_PORT/v1/healthcheck"
API_URL="http://localhost:8081/v1/healthcheck"
echo "Calling URL: $API_URL"

for i in {1..25}; do
  curl -s "$API_URL"
  #curl -s -o /dev/null -w "Response: %{http_code}\n" "$API_URL"
done

Dockerfile

FROM alpine/curl

COPY script.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/script.sh

ENTRYPOINT ["/usr/local/bin/script.sh"]

我正在尝试调试 GCP Cloud Run 上的连接问题，但无法让它在本地运行。我不确定为什么它在找到文件却说无法执行时却无法执行该文件。

我刚刚从 spring 2 -> 3 升级了我的应用程序，从那时起我收到了与 Pub/Sub 和凭证相关的错误。我尝试在映像构建过程中添加服务帐户，但这也不起作用。

#pubsub
spring.cloud.gcp.project-id=qzf-product-play-13cf
spring.cloud.gcp.pubsub.emulator-host=localhost:8681
spring.cloud.gcp.credentials.location=classpath:test.json
spring.cloud.gcp.project-id=local-project

然后我看看它是否在 main 方法中拾取文件，它是

public static void main(final String[] args) {
    String credentialsLocation = "classpath:test.json";
    System.out.println("Trying to load credentials from: " + credentialsLocation);

<dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>spring-cloud-gcp-starter-pubsub</artifactId>
  <version>3.5.4</version>
</dependency>

错误

{"timestamp":"2024-05-14T06:21:54.56208905Z","@version":"1","msg":"Could not create publisher.","logger_name":"product.tt.serviceconfig.pubsub.AbstractEntityPublisher","thread_name":"main","severity":"ERROR","level_value":40000,"stack_trace":"java.io.IOException: Your default credentials were not found. To set up Application Default Credentials for your environment, see https://cloud.google.com/docs/authentication/external/set-up-adc.\n\tat com.google.auth.oauth2.DefaultCredentialsProvider.getDefaultCredentials(DefaultCredentialsProvider.java:127)\n\tat com.google.auth.oauth2.GoogleCredentials.getApplicationDefault(GoogleCredentials.java:129)\n\tat com.google.auth.oauth2.GoogleCredentials.getApplicationDefault(GoogleCredentials.java:101)\n\tat com.google.api.gax.core.GoogleCredentialsProvider.getCredentials(GoogleCredentialsProvider.java:70)\n\tat com.google.api.gax.rpc.ClientContext.create(ClientContext.java:168)\n\tat com.google.cloud.pubsub.v1.stub.GrpcPublisherStub.create(GrpcPublisherStub.java:203)\n\tat com.google.cloud.pubsub.v1.Publisher.<init>(Publisher.java:201)\n\tat com.google.cloud.pubsub.v1.Publisher.<init>(Publisher.java:91)\n\tat com.google.cloud.pubsub.v1.Publisher$Builder.build(Publisher.java:881)

我不知道还能尝试什么。我已经这样做了四天了，但无法解决这个错误。

任何建议将不胜感激。