Page logic conventions

• Capture the naming and structural rules for page logic files.

Naming conventions

• File names.
• Function names.
• Action naming for do_*.

Structural conventions

• Keep page logic thin.
• Separate orchestration from business rules.
• Bind output late in the request flow.
• How to optionally wrap page logic in its own class.

Hypermedia

• Hypermedia is HTML over HTTP - incredibly simple and well understood by developers and web browsers.
• Use explicit actions.
• Use redirects deliberately.
• Keep side effects easy to trace.
• Once functional, add fluid user experience without changing behavioural flow.

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Move on to the view and binding reference page next.