Navigation

Building extensions
  - Introduction
  - Life cycle & Execution mode
  - Content Page Extension
  - Examples
  - Interact with extensions
  - Interact with SMMenu
  - Interact with SMPages
  - Debugging

Building design templates
  - Introduction
  - Place holders
  - Repeating blocks
  - Examples

Framework API
  - Introduction
  - Simple data attributes
  - Authentication
  - Configuration manager
  - Data Sources (DB)
  - Environment data
  - Extension base class
  - The extension context
  - The extension manager
  - Filesystem functions
  - The Form component
  - Image provider
  - Key Value Collections
  - Language handling
  - Logging and error handling
  - GUIDs & Random numbers
  - Various utilities
  - Send and receive data
  - Template engine
  - Text files
  - Strongly typed

GUI Controls
  - Introduction
  - Input types
  - Option list
  - Link button
  - Tree menu
  - Grid view
  - Fieldset (sub form)
  - JavaScript library

Receiving payments
  - Introduction
  - PayPal and Ewire

More help
  - Forum

Extension base class

All extensions must inherit from the SMExtension base class. This class defines all the life cycle functions, and a constructor that receives a context object. The following example demonstrates how to define the main class for a new extension, and how to override one of the life cycle functions.

class MyExtension extends SMExtension
{
    // Override Init() function from SMExtension class
    public function Init()
    {
    }
}

See the Building extensions section for more information on how to create extensions.

SMExtension class

Function	Return type	Description
__construct($context:SMContext)		Used by controller to a create new instance of an extension. The $context object is an instance of the SMContext class. It contains information about what extension is currently running, and provides access to the template and form component.
PreInit()		See life cycle description.
Init()		See life cycle description.
InitComplete()		See life cycle description.
PreRender()		See life cycle description.
Render()	String	See life cycle description.
RenderComplete()		See life cycle description.
PreTemplateUpdate()		See life cycle description.
TemplateUpdateComplete()		See life cycle description.
PreOutput()		See life cycle description.
OutputComplete()		See life cycle description.
Unload()		See life cycle description.
Finalize()		See life cycle description.