Efficiently Loading Controller-Specific Scripts in Rails 3.1 and Higher with Sprockets
application.css, you may encounter scenarios where you need to load controller-specific scripts efficiently.
application.js), which can be inefficient for larger applications.
- Disadvantage: Increased initial load time if all controllers’ assets are needed.
- Prevents JS Back-Firing: Isolating controller-specific scripts prevents unintended interactions between different parts of your application.
How to Load Controller-Specific Scripts
In your application’s layout file, usually located at
This modification tells Rails to include the
Rails.application.config.assets.precompile += %w( controller1.js )
Rails.application.config.assets.precompile += %w( controller2.js )
# Add entries for each controller-specific script you want to load
Ensure that you have entries for each controller-specific script you wish to include.
3. Restart the Server
After making changes to the configuration files within the
config folder, it’s essential to restart your Rails server to apply these modifications effectively.
In conclusion, understanding how to manage your assets effectively in Rails, especially when dealing with larger applications, can significantly impact your application’s performance and maintainability. Controller-specific script loading is just one of the techniques that can help you achieve these goals.