Becoming Proficient In Code Review For Salesforce

Opening statement:

Embarking on the domain of Salesforce development resembles navigating unfamiliar territories, and central to this expedition is the practice of code review. Analogous to a musician honing their rhythmic precision, developers foster a ‘code sense,’ a vital skill that matures with each pull request. In this extensive guide, we will unravel the complexities of code review, delving into its importance and furnishing a thorough roadmap for mastering this indispensable facet of software development within the Salesforce ecosystem.

Exploring Characteristics of Code Quality:
1. Readability:

Consider the code as a story – a narrative that should be easily comprehensible. To achieve this, adopt clear formatting and choose expressive names for variables and functions. Let’s take a closer look at how readability enhances code:

// Poorly Readable

int x = 10;

// Improved Readability

int userCount = 10;

While readability ensures the code can be deciphered, clarity ensures it’s easily understood. This involves avoiding complex mixtures of low-level and high-level operations. A simple example illustrates the importance of code clarity:

// Mixed Abstractions

for (Integer i = 0; i < 10; i++) {

    // High-level logic

3. Dependability:

Reliable code is like a well-maintained car that anticipates and handles errors gracefully. Robust error handling and thorough testing contribute to code reliability.

4. Reusability and Extensibility:

Think of your code as modular Lego blocks – reusable and ready for expansion. Utilize object-oriented principles to create code that is both reusable and extensible:

// Non-Reusable

void processOrder() {

    // Processing logic


// Reusable

class OrderProcessor {

    void processOrder() {

        // Processing logic


5. Testability:

Writing code that is easy to test is like building a Lego structure that can be easily checked for stability. Adopt Test-Driven Development (TDD) principles to ensure your code is testable:

// Code Without Testability

void complexLogic() {

    // Complex logic


// Testable Code

void complexLogic() {

    // Complex logic with associated tests

6. Maintainability:

Code should be like a well-kept garden – easy to tend and recover after storms. Adequate logging and resilient error-handling contribute to code maintainability:

// Inadequate Error Handling

try {

    // Risky operation

} catch (Exception e) {

    // Handle error


// Improved Maintainability

try {

    // Risky operation with comprehensive error handling

} catch (Exception e) {

    // Handle error gracefully


7. Efficiency and Performance:

Efficient code is like a high-performance car, optimized for speed. Always consider performance implications, even if the project’s requirements don’t explicitly demand it:

// Suboptimal Performance

for (Account acc : accounts) {

    // Time-consuming operation


// Optimized Performance

List<Account> updatedAccounts = new List<Account>();

for (Account acc : accounts) {

    // Optimize operation for better performance

7. Security:

Code should be a fortress, protecting against potential attacks. Leverage Salesforce’s security tools and adhere to best practices to ensure a robust defense:

// Insecure Code

String userInput = System.currentPageReference().getParameters().get('input');

// Secure Code

String userInput = EncodingUtil.urlDecode(System.currentPageReference().getParameters().get('input'), 'UTF-8');
Revealing Tips for the Code Review Process:

Requirements: Prior to engaging in code review, comprehend the business objectives that the code aims to accomplish. This is comparable to understanding the purpose of a recipe before scrutinizing its steps.

Ready Solutions: Explore existing solutions before initiating new code creations. Utilize Salesforce’s extensive functionality, AppExchange packages, and open-source solutions available on platforms like GitHub.Design and Architecture: Evaluate the structure of new components, emphasizing clarity, reusability, extensibility, and testability. Adhere to SOLID principles and design patterns, especially crucial for projects involving managed packages.Implementation: The meticulous stage of code review where attention to detail is paramount. Scrutinize every line of code, ensuring it aligns with identified quality attributes.Pull Request Comments: Clear and constructive comments enhance the code review process. Encourage a dialogue between reviewers and submitters, fostering a collaborative environment.Time: Break down large code submissions to streamline the review process. Versioning systems can facilitate incremental reviews, saving time for both reviewers and developers.Code Analysis Tools: Harness automated code analysis tools such as Salesforce Graph Engine and emerging AI-powered tools. They function as virtual assistants, ensuring code meets established quality standards.

Closing Thoughts:

Becoming proficient in code review is a journey during which developers enhance their skills. By emphasizing readability, reliability, and security, developers play a vital role in building software that endures. Use these tips as your guide through the code review process, skillfully navigating the complexities of Salesforce development.