Rapid Web Applications with TurboGears: Using Python to Create Ajax-Powered Sites

Chapter 16.8. Summary

• Widgets provide a way to Package HTML, CSS and JavaScript into reusable components.

• Widgets are shared between all incoming requests, so they should be stateless.

• Widget params can be given defaults at instantiation time, values at render time, or they can be assigned a callable which will be run automatically at render time to get the proper value.

• TurboGears provides a form widget which handles displaying its own validation errors.

• TurboGears form widgets integrate with FormEncode to handle validation.

• FormWidget makes it easy to create your own Validators by subclassing FancyValidator.

• The FormWidget is a special case of the more general CompoundWidget, which you can use to create nested widget structures of your own.

• CSSLink ...