Portlets

An introduction to the portlets architecture of Plone 3, with practical examples.

• What's a Portlet?
  • Differences with viewlets
• Basic plone.portlets architecture
  • The use case
  • The configuration data
  • The add and edit forms
  • The portlet presentation
  • Registering the portlet
  • Installing the portlet
• Testing the portlet
• How and where are Portlet Assignments stored?
  • Site-wide
  • Contextual
• How are portlets rendered?
• Order and blacklisting
• Appendix: Practicals
  • Subclassing new portlets
  • Moving portlet assignments from one item to another
  • How to update schemas for already registered portlets
  • How to make portlets availability configurable via adapters
• Portlet tips (advanced)
  • Introduction
  • Creating a portlet
  • Subclassing a portlet
  • Using z3c.form in portlets
  • Overriding portlet rendering
  • update() and render()
  • available property
  • Iterate portlets assigned to the portal root
  • Looking up a portlet by id
  • Walking through every portlet on the site
  • Checking if a certain context portlet is active on a page
  • Rendering a portlet
  • Hiding unwanted portlets
  • Disabling right or left columns in a view or template
  • Disabling right or left columns on a context
  • Creating a new portlet manager
  • Fixing relative links for static text portlets
  • Other resources and examples