Core Concepts:
-
Server-side scripts execute on the ServiceNow server and have access to the database
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Business Rules are triggered by database operations: query, update, insert, and delete
- Business Rule script logic is executed relative to when the database operation occurs
- before
- after
- async
- display
- Debug Business Rules using:
- JavaScript Debugger - debug script logic
- Debug Business Rule (Details) - debug condition script
- Application log - view log messages
- Use the JavaScript Debugger to debug synchronous server-side scripts
- See variable values
- Set breakpoints
- View call stack
- See transaction information
- Script Includes are reusable server-side logic
- On demand/classless Script Includes
- Cannot be called from the client-side
- Contain a single function
- Script Includes which extend a class
- Inherit properties of extended class
- Do not override inherited properties
- Most commonly extended class is GlideAjax
- Script Includes can create a new class (does not extend an existing class)
- Many applications have a Utils Script Include
- Initialize function automatically invoked
- Developer must write all properties
