Chapter One: Getting to Know Cursor’s Code Review Feature
Ma Su: Lord Zhuge, I am in charge of code review in our team project recently, but I feel the efficiency is very low. I have to switch back and forth between various files and manually mark issues.
Zhuge Liang: Hmm, code review is indeed a technical task. However, I know a great tool – Cursor Editor, which has a powerful built-in code review feature.
Ma Su: Oh? This Cursor sounds impressive, can you elaborate?
Zhuge Liang: Cursor is not just an ordinary code editor; it also integrates AI-assisted features. During code reviews, it can automatically analyze code quality and provide improvement suggestions, just like having an experienced programmer review your code.
Ma Su: Wow! That’s fantastic! Shall we give it a try now?
Chapter Two: Practical Experience
Zhuge Liang: Alright, let’s take a look at a piece of code; this is the user registration function you submitted yesterday:
def register_user(username, password):
if len(username) > 0 and len(password) > 0:
user = {
'username': username,
'password': password,
'created_at': datetime.now()
}
db.users.insert_one(user)
return True
return False
Ma Su: This code looks fine to me?
Zhuge Liang: Let’s use Cursor’s code review feature to check. Just select the code, right-click and choose “Review Code,” or use the shortcut Ctrl+Shift+R.
Ma Su: Wow! Cursor immediately gave several suggestions!
Zhuge Liang: Yes, let’s see what issues Cursor found:
-
The password is not encrypted
-
The validation for username and password is too simple
-
There is a lack of exception handling
-
No prevention for duplicate username registration
Ma Su: There are indeed these issues! How can we improve it?
Zhuge Liang: We can let Cursor help us optimize the code. Look at this modification:
from werkzeug.security import generate_password_hash
from datetime import datetime
def register_user(username, password):
try:
# Validate input
if not validate_input(username, password):
return False, "Invalid username or password format"
# Check if username exists
if db.users.find_one({'username': username}):
return False, "Username already exists"
# Create user record
user = {
'username': username,
'password': generate_password_hash(password),
'created_at': datetime.now()
}
db.users.insert_one(user)
return True, "Registration successful"
except Exception as e:
return False, f"Registration failed: {str(e)}"
def validate_input(username, password):
return (len(username) >= 3 and len(username) <= 20 and
len(password) >= 8 and len(password) <= 50)
Ma Su: Amazing! The code suddenly became more professional!
Chapter Three: In-Depth Understanding of Code Review Techniques
Zhuge Liang: Besides basic code reviews, Cursor can help us do more:
-
Code Style Checking: Automatically detects code that does not conform to PEP 8 standards
-
Performance Optimization Suggestions: Identifies potential performance bottlenecks
-
Security Vulnerability Scanning: Discovers possible security risks
-
Documentation Completion: Automatically generates function documentation comments
Ma Su: These features are very practical! By the way, what if I want to review the entire project’s code in bulk?
Zhuge Liang: Cursor provides project-level code review functionality. Right-click in the file directory and select “Review Project,” and it will scan and analyze the entire project.
Ma Su: Lord Zhuge, after using Cursor, I feel that code review has become so easy!
Zhuge Liang: That’s right. To do a good job, one must first sharpen their tools. Using tools well can greatly improve our work efficiency. Remember, the purpose of code review is to improve code quality, not to find fault with others. Cursor is just an auxiliary tool; the most important thing is the reviewer’s professional quality and the spirit of teamwork.
Ma Su: I’ve learned a lot! I’m going to tell the other team members to use it together!
Summary
Code review is an important means to enhance team code quality, and Cursor’s AI-assisted features make this process more efficient and enjoyable. Through real-time code analysis and suggestions, we can discover and resolve code issues more quickly while continuously learning and improving in the process.
To become an excellent code reviewer, it is essential to master the use of the tool, but more importantly, to maintain an open and learning mindset. Let’s use Cursor together to make code review easier and more fun!
