第一次提交 #21
第一次提交 #21
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Actionable comments posted: 17
🧹 Outside diff range and nitpick comments (5)
roboko12/Dockerfile (3)
1-8: LGTM! Good setup for Go build environment.The use of
golang:alpineas the base image and the environment variable setup look good. They provide a solid foundation for building a Go application with static linking.Consider making the GOPROXY setting more flexible by using an ARG:
ARG GOPROXY=https://goproxy.cn,direct ENV GOPROXY=${GOPROXY}This allows easier customization of the proxy during build time if needed.
19-28: LGTM! Efficient final image setup.The use of a scratch image for the final stage is excellent for minimizing the image size. The binary is correctly copied from the builder stage, and the ENTRYPOINT is set appropriately.
Consider adding a non-root user for running the application, which is a security best practice:
FROM scratch # Add a non-root user COPY --from=builder /etc/passwd /etc/passwd USER nobody # Copy the binary COPY --from=builder /build/app /app # Set the entrypoint ENTRYPOINT ["/app"]This adds a layer of security by not running the application as root.
1-28: Overall, good Dockerfile structure with room for optimization.This Dockerfile demonstrates good use of multi-stage builds and creates a minimal final image. Here's a summary of the suggestions for improvement:
- Use ARG for GOPROXY to allow build-time customization.
- Optimize the file copying process to leverage Docker's layer caching.
- Add build flags for optimization and consider including a test step.
- Implement a non-root user in the final image for improved security.
These changes will enhance the build process efficiency, final image size, and overall security of your containerized application.
Consider creating a
.dockerignorefile to exclude unnecessary files from the build context, further optimizing the build process and reducing the risk of including sensitive information in the image.roboko12/route.go (2)
17-19: Use CamelCase for struct and variable names to follow Go naming conventionsIn Go, the convention is to use CamelCase for naming structs and variables. Please rename
Deleted_QuestionstoDeletedQuestionsanddeleted_questionstodeletedQuestionsfor consistency and readability.Apply this diff to update the names:
-type Deleted_Questions struct { +type DeletedQuestions struct { deleted map[string]Question mux sync.Mutex } -var deleted_questions Deleted_Questions = Deleted_Questions{deleted: make(map[string]Question)} +var deletedQuestions DeletedQuestions = DeletedQuestions{deleted: make(map[string]Question)}Also applies to: 22-22
241-285: Implement voting mechanism to prevent multiple votes from the same userCurrently, users can agree or disagree with an answer multiple times, artificially inflating the counts. Implement a mechanism to ensure users can only vote once per answer and toggle their vote if needed.
Consider creating a separate
Votemodel to track user votes:type Vote struct { ID uint `gorm:"primarykey"` UserID uint AnswerID uint IsAgree bool } func AgreeAnswer(c *gin.Context) { // ... // Check if the user has already voted var vote Vote if err := db.Where("user_id = ? AND answer_id = ?", userID, answer.ID).First(&vote).Error; err == nil { if vote.IsAgree { c.JSON(http.StatusBadRequest, gin.H{"error": "您已经赞同过该答案"}) return } // User previously disagreed; update the vote vote.IsAgree = true answer.AgreeNum++ answer.DisagreeNum-- } else { // New vote vote = Vote{UserID: userID, AnswerID: answer.ID, IsAgree: true} answer.AgreeNum++ } // Save the vote and update the answer // ... }This ensures that each user can only vote once per answer and provides accurate agree/disagree counts.
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📒 Files selected for processing (4)
- roboko12/Dockerfile (1 hunks)
- roboko12/go.mod (1 hunks)
- roboko12/main.go (1 hunks)
- roboko12/route.go (1 hunks)
🧰 Additional context used
🔇 Additional comments (3)
roboko12/go.mod (2)
1-43: Well-structured go.mod fileThe overall structure and organization of the
go.modfile are good. The dependencies are listed in alphabetical order, which is a best practice for maintainability.Keep up the good work in maintaining a clean and organized
go.modfile. This will make it easier to manage dependencies as your project grows.
5-43: Review and potentially prune indirect dependenciesAll listed dependencies are marked as indirect, which means they are not directly imported in your code but are required by other dependencies. It's a good practice to review these dependencies and ensure that all of them are necessary for your project.
Consider the following steps:
- Review your code to identify which dependencies are directly used.
- Run
go mod tidyto remove any unnecessary dependencies and add any missing ones.- If any dependencies are still marked as indirect after running
go mod tidy, investigate if they are truly needed or if they can be removed.To help with this process, you can run the following command to see which packages are importing these indirect dependencies:
This will help you understand which of your direct dependencies are pulling in these indirect dependencies, allowing you to make informed decisions about whether they are necessary for your project.
roboko12/main.go (1)
90-92: Ensure Handler Functions Are DefinedThe routes for user registration and login reference handler functions
RegisterandLogin:v_post.POST("register", Register) v_post.POST("login", Login)Please verify that these handler functions are defined in your codebase. If they are not yet implemented, you should add them to handle the respective routes.
| # 移动到工作目录：/build | ||
| WORKDIR /build | ||
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| # 将代码复制到容器中 | ||
| COPY . . |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consider optimizing the file copying process.
While setting the working directory is good, copying all files from the build context might include unnecessary files in the image.
Consider being more selective about what files are copied:
WORKDIR /build
COPY go.mod go.sum ./
RUN go mod download
COPY . .This approach:
- Copies only the dependency files first.
- Downloads dependencies (which can be cached).
- Then copies the rest of the source code.
This can improve build times by leveraging Docker's layer caching mechanism.
| # 将我们的代码编译成二进制可执行文件 app | ||
| RUN go build -o app . |
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🛠️ Refactor suggestion
Consider adding build flags for optimization.
The current build command is functional but could be optimized further.
Consider adding flags to reduce binary size and improve performance:
RUN go build -ldflags="-s -w" -o app .The -ldflags="-s -w" flags strip debugging information and the symbol table, reducing the binary size.
Additionally, you might want to add a step to run tests before building:
RUN go test ./...
RUN go build -ldflags="-s -w" -o app .This ensures that all tests pass before creating the final binary.
| module sample-app | ||
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| go 1.23.1 |
There was a problem hiding this comment.
Incorrect Go version specified
The Go version specified (1.23.1) is not a valid Go version. As of October 2024, the latest stable version is in the 1.22.x series.
Please update the Go version to a valid, stable version. For example:
-go 1.23.1
+go 1.22.0Make sure to test your code with the corrected Go version to ensure compatibility.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| module sample-app | |
| go 1.23.1 | |
| module sample-app | |
| go 1.22.0 |
| deleted_questions.mux.Lock() | ||
| for _, q := range deleted_questions.deleted { | ||
| if q.IsDeleted && time.Since(q.Deleted_Time) > time.Second*10 { | ||
| resultCh <- q | ||
| db.Unscoped().Delete(&q) | ||
| } | ||
| } | ||
| deleted_questions.mux.Unlock() | ||
| } |
There was a problem hiding this comment.
Undefined Variable: 'deleted_questions'
The variable deleted_questions is used but not defined within the provided code. This will lead to a compilation error due to undefined variable usage. Please ensure that deleted_questions is properly declared and initialized before it's used.
| case q := <-resultCh: | ||
| delete(deleted_questions.deleted, strconv.FormatUint(uint64(q.ID), 10)) |
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Undefined Variable: 'deleted_questions'
Again, the variable deleted_questions is referenced but not defined:
delete(deleted_questions.deleted, strconv.FormatUint(uint64(q.ID), 10))This will cause a runtime error. Ensure that deleted_questions is properly declared and initialized.
| if err := c.ShouldBindJSON(&user); err != nil { | ||
| c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()}) | ||
| fmt.Println("error:", err.Error()) | ||
| return | ||
| } |
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Prevent users from setting sensitive fields during registration
When binding JSON into the user model, users might include fields like IsManager to set themselves as managers. Although you set user.IsManager = false, it's safer to use an input struct that only includes the fields users are allowed to set.
Define an input struct for registration:
type UserRegistrationInput struct {
Username string `json:"username" binding:"required"`
Password string `json:"password" binding:"required"`
}
func Register(c *gin.Context) {
var input UserRegistrationInput
if err := c.ShouldBindJSON(&input); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}
user := User{
Username: input.Username,
Password: input.Password,
IsManager: false,
}
if err := db.Create(&user).Error; err != nil {
// Handle error
}
// ...
}| if c.ShouldBindJSON(&comment) != nil { | ||
| c.JSON(http.StatusBadRequest, gin.H{"error": "请求参数有误"}) | ||
| return | ||
| } |
There was a problem hiding this comment.
Properly handle errors returned by ShouldBindJSON
The current code checks if c.ShouldBindJSON(&comment) != nil, but it would be clearer to assign the error to a variable. This improves readability and follows standard error handling practices.
Update the code as follows:
if err := c.ShouldBindJSON(&comment); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": "请求参数有误"})
return
}| answer.delete_answer(&question) | ||
| } | ||
| //保存被删除的问题到map中 | ||
| deleted_questions.deleted[id] = question |
There was a problem hiding this comment.
Ensure thread-safe access to deleted_questions.deleted by using mutex locks
When modifying the shared deleted_questions.deleted map, you should acquire the mutex lock to prevent data races and ensure thread safety.
Update the code to use the mutex:
deleted_questions.mux.Lock()
defer deleted_questions.mux.Unlock()
deleted_questions.deleted[id] = questionThis ensures that concurrent accesses to deleted_questions.deleted are properly synchronized.
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| if answer.UserID != userID.(uint) && !CheckManager(userID.(uint)) { | ||
| c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该问题"}) | ||
| return |
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Correct error messages to accurately reflect the resource type
The error messages in the DeleteAnswer and DeleteCommentToAnswer functions incorrectly mention "问题" (question) instead of "答案" (answer) or "评论" (comment). This could confuse users.
Update the error messages accordingly:
// In DeleteAnswer (line 559)
- c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该问题"})
+ c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该答案"})
// In DeleteCommentToAnswer (line 670)
- c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该问题"})
+ c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该评论"})This ensures that users receive accurate feedback about the actions they are attempting.
Also applies to: 670-670
| func CheckLogin(c *gin.Context) interface{} { | ||
| session := sessions.Default(c) | ||
| userID := session.Get("user_id") | ||
| if userID == nil { | ||
| return nil | ||
| } | ||
| return userID | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Return a specific type in CheckLogin function instead of interface{}
The CheckLogin function returns an interface{}, which requires type assertions whenever it's used. Consider returning *uint (pointer to uint) to represent the user ID or nil if the user is not logged in. This enhances type safety and avoids unnecessary type assertions.
Apply this diff to update the function signature and return type:
-func CheckLogin(c *gin.Context) interface{} {
+func CheckLogin(c *gin.Context) *uint {
session := sessions.Default(c)
userID := session.Get("user_id")
if userID == nil {
return nil
}
- return userID
+ id, ok := userID.(uint)
+ if !ok {
+ return nil
+ }
+ return &id
}Update the calling code to handle the pointer to uint appropriately.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| func CheckLogin(c *gin.Context) interface{} { | |
| session := sessions.Default(c) | |
| userID := session.Get("user_id") | |
| if userID == nil { | |
| return nil | |
| } | |
| return userID | |
| } | |
| func CheckLogin(c *gin.Context) *uint { | |
| session := sessions.Default(c) | |
| userID := session.Get("user_id") | |
| if userID == nil { | |
| return nil | |
| } | |
| id, ok := userID.(uint) | |
| if !ok { | |
| return nil | |
| } | |
| return &id | |
| } |
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Actionable comments posted: 8
🧹 Outside diff range and nitpick comments (3)
roboko12/main.go (1)
23-25: Consider removing unused structKeyWordThe
KeyWordstruct is defined but not used anywhere in the provided code. If it's not used in other parts of the application, consider removing it to keep the codebase clean.roboko12/route.go (2)
758-759: Validate search keyword before processingWhen the search keyword is empty, the error message is appropriate. However, consider validating the keyword length and trimming whitespace before processing to enhance user experience.
keyword.Keyword = strings.TrimSpace(keyword.Keyword) if len(keyword.Keyword) == 0 { c.JSON(http.StatusBadRequest, gin.H{"error": "请输入搜索关键词"}) return }
796-804: Ensure consistent error responsesWhen retrieving the comment and answer in
CreateReplyToComment, you return an internal server error if not found. Consider returning aNotFoundstatus with a user-friendly message.if err := db.Where("id = ?", comment_id).First(&comment).Error; err != nil { c.JSON(http.StatusNotFound, gin.H{"error": "评论未找到"}) return }
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⛔ Files ignored due to path filters (4)
roboko12/__debug_bin1067692169.exeis excluded by!**/*.exeroboko12/__debug_bin1222785051.exeis excluded by!**/*.exeroboko12/__debug_bin630280278.exeis excluded by!**/*.exeroboko12/__debug_bin708761844.exeis excluded by!**/*.exe
📒 Files selected for processing (2)
- roboko12/main.go (1 hunks)
- roboko12/route.go (1 hunks)
🧰 Additional context used
🔇 Additional comments (13)
roboko12/main.go (4)
82-82:⚠️ Potential issueSecurity risk: Hardcoded database credentials
Hardcoding database credentials in the source code is a significant security risk. Instead, use environment variables or a secure configuration management system to store and access sensitive data.
Example using environment variables:
import "os" // ... dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True&loc=Local", os.Getenv("DB_USER"), os.Getenv("DB_PASSWORD"), os.Getenv("DB_HOST"), os.Getenv("DB_PORT"), os.Getenv("DB_NAME")) dialector := mysql.Open(dsn)Make sure to set these environment variables in your deployment environment.
107-109: 🛠️ Refactor suggestionImprove RESTful design: Use path parameters for resource identification
Several routes use query parameters to identify resources. In RESTful API design, it's more common and clearer to use path parameters for resource identification. Consider updating the following routes:
- v_post.POST("questions/answers/comments", CreateCommentToAnswer) + v_post.POST("questions/:question_id/answers/:answer_id/comments", CreateCommentToAnswer) - v_post.POST("questions/answers/comments/comments", CreateReplyToComment) + v_post.POST("questions/:question_id/answers/:answer_id/comments/:comment_id/replies", CreateReplyToComment) - v_delete.DELETE("questions/answers", DeleteAnswerForever) + v_delete.DELETE("questions/:question_id/answers/:answer_id", DeleteAnswerForever) - v_delete.DELETE("questions/deleted_answers", DeleteAnswer) + v_delete.DELETE("questions/:question_id/answers/:answer_id", DeleteAnswer) - v_delete.DELETE("questions/answers/comments", DeleteCommentToAnswer) + v_delete.DELETE("questions/:question_id/answers/:answer_id/comments/:comment_id", DeleteCommentToAnswer) - v_delete.DELETE("questions/answers/deleted_comments", DeleteCommentForever) + v_delete.DELETE("questions/:question_id/answers/:answer_id/comments/:comment_id", DeleteCommentForever)Update the corresponding handler functions to accept these path parameters.
Also applies to: 153-159
137-139: 🛠️ Refactor suggestionConsider using POST for non-idempotent actions
The routes for agreeing and disagreeing with an answer are using the PUT method:
v_put.PUT("questions/answers/agree", AgreeAnswer) v_put.PUT("questions/answers/disagree", DisagreeAnswer)In RESTful API design, actions that do not idempotently update a resource state are often better suited to the POST method. Consider using POST for these endpoints to align with RESTful principles.
- v_put.PUT("questions/answers/agree", AgreeAnswer) + v_post.POST("questions/:question_id/answers/:answer_id/agree", AgreeAnswer) - v_put.PUT("questions/answers/disagree", DisagreeAnswer) + v_post.POST("questions/:question_id/answers/:answer_id/disagree", DisagreeAnswer)
163-175:⚠️ Potential issueFix undefined variable and adjust deletion time threshold
There are two issues in this goroutine:
The
deleted_questionsvariable is used but not defined in the provided code. This will lead to a runtime error.The comment suggests deleting questions after 15 days, but the code deletes them after 10 seconds:
//统计每个被删除的删除天数，超过15天则永久删除 if q.IsDeleted && time.Since(q.Deleted_Time) > time.Second*10 {To fix these issues:
Ensure that
deleted_questionsis properly defined and initialized before use.Adjust the deletion threshold to match the intended 15-day period:
- if q.IsDeleted && time.Since(q.Deleted_Time) > time.Second*10 { + if q.IsDeleted && time.Since(q.Deleted_Time) > time.Hour*24*15 {Also, consider using a constant for the deletion threshold to make it easier to update in the future.
roboko12/route.go (9)
25-32: Return a specific type instead ofinterface{}inCheckLoginfunctionThe
CheckLoginfunction currently returnsinterface{}, which requires type assertions in the calling code. Consider returning a specific type, such as*uint, to enhance type safety and avoid unnecessary type assertions.
127-131: Prevent users from setting sensitive fields during registrationBinding JSON directly into the
usermodel may allow users to set fields likeIsManager. Although you setuser.IsManager = false, it's safer to use an input struct that only includes the fields users are allowed to set.
147-154: Usegorm.ErrRecordNotFoundinstead ofsql.ErrNoRowswhen checking for missing recordsIn GORM, when a record is not found, the error returned is
gorm.ErrRecordNotFound, notsql.ErrNoRows. Replacesql.ErrNoRowswithgorm.ErrRecordNotFoundto correctly handle this case.
350-353: Prevent unintended field updates during question updateDirectly binding JSON into the retrieved
questionmodel can overwrite fields that should not be modified by users, such asUserID,IsDeleted, and timestamps. Use a separate input struct for binding and update only the allowed fields.
620-623: Properly handle errors returned byShouldBindJSONAssign the error returned by
c.ShouldBindJSON()to a variable for clearer error handling and improved readability.
408-408: Ensure thread-safe access todeleted_questions.deletedby using mutex locksWhen modifying the shared
deleted_questions.deletedmap, you should acquire the mutex lock to prevent data races and ensure thread safety.Apply the lock and defer unlocking around the map modification:
deleted_questions.mux.Lock() defer deleted_questions.mux.Unlock() deleted_questions.deleted[id] = question
561-561: Correct error messages to accurately reflect the resource typeThe error messages in the
DeleteAnswer,DeleteCommentToAnswer, andDeleteCommentForeverfunctions incorrectly mention "问题" (question) instead of "答案" (answer) or "评论" (comment). This could confuse users.Update the error messages accordingly:
// In DeleteAnswer (line 561) - c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该问题"}) + c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该答案"}) // In DeleteCommentToAnswer (line 672) - c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该问题"}) + c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该评论"}) // In DeleteCommentForever (line 733) - c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该问题"}) + c.JSON(http.StatusUnauthorized, gin.H{"error": "您没有权限删除该评论"})Also applies to: 672-672, 733-733
479-481: Fix incorrect slice element removal logicThe code attempts to remove elements from slices
question.Answersandanswer.Commentsusing incorrect slicing. Usinglenof the slice in this way does not remove any elements. You need to identify the index of the element to remove and update the slice properly.For example, to remove an element at index
ifrom a slice:slice = append(slice[:i], slice[i+1:]...)Please update the code in the following functions to correctly remove the specific answer or comment:
(answer *Answer) delete_answer_forever(lines 479-481)(answer *Answer) delete_answer(lines 533-535)(comment *Comment) delete_comment_to_answer(lines 653-656)(comment *Comment) delete_comment_forever(lines 714-717)Also applies to: 533-535, 653-656, 714-717
183-185: Handle potential errors when creating a questionThe error handling after
db.Create(&question)is appropriate. Ensure that any potential errors are properly logged and that sensitive information is not exposed to the user.
| type Comment struct { | ||
| gorm.Model | ||
| AgreeOrNot | ||
| Content string | ||
| UserID uint | ||
| AnswerID uint | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Reconsider embedding AgreeOrNot in Comment struct
The Comment struct embeds the AgreeOrNot struct, which includes AgreeNum and DisagreeNum fields. It's unusual for individual comments to have agree/disagree counts. Consider removing this embedding if it's not intentional or necessary for your application's logic.
| var db *gorm.DB | ||
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| const max_question_num = 30 | ||
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| var resultCh chan Question = make(chan Question, max_question_num) |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consider refactoring global variables
Global variables like db and resultCh can make the code harder to test and maintain. Consider the following improvements:
- Pass
dbas a parameter to functions that need it, or use a struct to encapsulate the application state. - Add a comment explaining the purpose of
resultChand consider moving its declaration closer to where it's used.
Example refactoring:
type App struct {
DB *gorm.DB
ResultCh chan Question
}
func NewApp(db *gorm.DB) *App {
return &App{
DB: db,
ResultCh: make(chan Question, max_question_num),
}
}This approach would make the code more modular and easier to test.
| if err != nil { | ||
| log.Fatal("数据库连接失败:", err) | ||
| } | ||
| db.AutoMigrate(&User{}, &Question{}, &Answer{}, &Comment{}, &ReplyComment{}) |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Caution: Auto-migration in production
Using AutoMigrate in a production environment can be risky as it may lead to unintended schema changes or data loss. Consider using a dedicated migration tool or implementing a more controlled migration process for production deployments.
Example:
if os.Getenv("ENVIRONMENT") != "production" {
db.AutoMigrate(&User{}, &Question{}, &Answer{}, &Comment{}, &ReplyComment{})
} else {
log.Println("Skipping auto-migration in production. Please run migrations manually.")
}| go func() { | ||
| for { | ||
| select { | ||
| case q := <-resultCh: | ||
| delete(deleted_questions.deleted, strconv.FormatUint(uint64(q.ID), 10)) | ||
| } | ||
| } | ||
| }() |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Potential issue: Unbuffered channel usage
The goroutine collecting results from resultCh runs in an infinite loop without any exit condition. This could lead to a goroutine leak if the main function exits before this goroutine. Consider adding a way to signal this goroutine to stop, such as using a context or a dedicated stop channel.
Example:
stopCh := make(chan struct{})
go func() {
for {
select {
case q := <-resultCh:
delete(deleted_questions.deleted, strconv.FormatUint(uint64(q.ID), 10))
case <-stopCh:
return
}
}
}()
// In the main function, before r.Run(":8080"):
defer close(stopCh)This allows the goroutine to be properly stopped when the main function exits.
| } | ||
| }() | ||
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| r.Run(":8080") |
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🛠️ Refactor suggestion
Consider using environment variable for port configuration
Hardcoding the port number (8080) reduces the flexibility of the application in different environments. Consider using an environment variable to set the port:
import "os"
// ...
port := os.Getenv("PORT")
if port == "" {
port = "8080" // Default port if not set
}
r.Run(":" + port)This change allows easy configuration of the port through environment variables, making the application more flexible for different deployment scenarios.
| func (answer *Answer) Init(c *gin.Context, user_id uint) { | ||
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| answer_id := c.Query("answer_id") | ||
| question_id := c.Query("question_id") | ||
| var err error | ||
| var int_answer_id int | ||
| var int_question_id int | ||
| if int_answer_id, err = strconv.Atoi(answer_id); err != nil { | ||
| c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()}) | ||
| return | ||
| } | ||
| if int_question_id, err = strconv.Atoi(question_id); err != nil { | ||
| c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()}) | ||
| return | ||
| } | ||
| answer.UserID = user_id | ||
| answer.ID = uint(int_answer_id) | ||
| answer.QuestionID = uint(int_question_id) | ||
| } |
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Avoid handling HTTP responses within model initialization methods
In the Init methods for Answer and Comment, you handle HTTP responses using c.JSON(...) and return from the Init methods. This could lead to unexpected behaviors, as the calling function may not know that an error has occurred.
Consider refactoring the Init methods to return an error and handle the HTTP response in the calling functions.
Refactored Init methods:
func (answer *Answer) Init(c *gin.Context, user_id uint) error {
// ...
if int_answer_id, err = strconv.Atoi(answer_id); err != nil {
return err
}
// ...
return nil
}
func (comment *Comment) Init(c *gin.Context) error {
// ...
if int_comment_id, err = strconv.Atoi(comment_id); err != nil {
return err
}
// ...
return nil
}And in the calling functions:
if err := answer.Init(c, userID.(uint)); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}Also applies to: 58-76
| return | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consolidate error handling for database queries
In DisagreeAnswer, you handle database query errors. Similar error handling is repeated in multiple functions. Consider creating a helper function to reduce code duplication and improve maintainability.
Example helper function:
func getAnswerByID(id uint) (*Answer, error) {
var answer Answer
if err := db.Where("id = ?", id).First(&answer).Error; err != nil {
return nil, err
}
return &answer, nil
}Then use this helper in your functions:
answer, err := getAnswerByID(answerID)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
return
}| var replyComment []ReplyComment | ||
| //查找CommentUserID = userID的所有回复 | ||
| if err := db.Where("comment_user_id =?", userID.(uint)).Order("created_at desc").Find(&replyComment).Error; err != nil { | ||
| c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()}) | ||
| return | ||
| } | ||
| for _, v := range replyComment { | ||
| var newReplys []Comment | ||
| if err := db.Where("id =?", v.ReplyCommentID).Find(&newReplys).Error; err != nil { | ||
| c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()}) | ||
| return | ||
| } | ||
| replys = append(replys, newReplys...) | ||
| } | ||
|
|
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🛠️ Refactor suggestion
Optimize retrieval of replies to the user
The current implementation retrieves replies by iterating over replyComment entries and querying the database for each. This can lead to performance issues due to multiple database calls.
Consider using a JOIN or IN query to fetch all replies in a single database call:
// Fetch all reply comment IDs where CommentUserID matches the user
var replyCommentIDs []uint
if err := db.Model(&ReplyComment{}).
Where("comment_user_id = ?", userID.(uint)).
Pluck("reply_comment_id", &replyCommentIDs).Error; err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
return
}
// Fetch all replies with the collected IDs
var replies []Comment
if err := db.Where("id IN ?", replyCommentIDs).Find(&replies).Error; err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
return
}This reduces the number of database queries and improves performance.
Summary by CodeRabbit