Rails Helpers

Organization

• Keep helpers focused on specific domains (navigation, styling, forms, media)
• Use descriptive method names
• Group related functionality together
• Avoid business logic in helpers — presentation only

Module Structure

• One module per concern; match file name to module name (Zeitwerk)
• Place in app/helpers/ and include automatically by Rails
• Use content_tag, concat, link_to, etc. from ActionView

Styling and CSS Helpers

• Use helper methods for conditional CSS classes
• Support multiple class types and variants
• Keep class logic maintainable and extensible
• Use arrays + join(' ') to build class strings