Automatically Update a History Field When a Document Changes

This routine illustrates how to automatically append an event stamp to the document field every time the document is saved using the Notes client user interface (also known as the "front-end" interface). Each time the document is saved, the date, time, and user name are added to the history field. It's important to recognize that changes are not logged if the document is modified through "back-end" LotusScript programming. The following illustrates event stamps that could be appended to the field each time the document is saved.

12/10/2005 8:42:10 AMMark ElliottDocument changed.

12/15/2005 5:12:45 PMMark ElliottDocument changed.

12/16/2005 1:29:23 PMMark ElliottDocument changed.

How It Works

There are a variety of ways to automatically log or track changes to a document. One method often used to track changes is to log a comment each time the document is saved. This is achieved by creating a computed field on the form to store the history information and adding code in the QuerySave event to log the update. Using this approach, a statement is appended to the field each time the document is saved.

Implementation

To implement this solution, complete the following steps.

   

Step 1.

Create a new field on the form. In the properties dialog, set the field name to History and field type to Computed and select Allow multiple values. On tab 2, set the Display separate values field to New Line and then close the properties dialog. If you elect to use an alternate field name, be sure to adjust the following instruction and statements.
 

Step 2.

In the Programmer's pane, set the "value" formula for this field to History.
 

Step 3.

To complete the setup, add the following code to the QuerySave event for the form.
 

Sub Querysave(Source As Notesuidocument, Continue As Variant)

 Dim w As New NotesUIWorkspace
 Dim s As New NotesSession
 Dim db As NotesDatabase
 Dim uidoc As NotesUIDocument
 Dim doc As NotesDocument
 Dim statement As String
 Dim person As NotesName
 Dim item As NotesItem

 '----------------------------------------
 ' Set object values
 '----------------------------------------
 Set s = New NotesSession
 Set db = s.CurrentDatabase
 Set uidoc = w.CurrentDocument
 Set doc = uidoc.Document

 '----------------------------------------
 ' Define statement to be added to log
 '----------------------------------------
 Set person = New NotesName(s.UserName)
 statement = Cstr(Now) + " - " + person.Common +_
 " - " + "Document changed."

 '----------------------------------------
 ' Append statement to log
 '----------------------------------------
 Set item = doc.GetFirstItem("HISTORY")
 Call item.AppendToTextList(statement)

End Sub
 


Prompt the User to Describe Document Changes and Update the History Log

An Introduction to the Lotus Domino Tool Suite

Getting Started with Designer

Navigating the Domino Designer Workspace

Domino Design Elements

An Introduction to Formula Language

An Introduction to LotusScript

Fundamentals of a Notes Application

Calendar Applications

Collaborative Applications

Reference Library Applications

Workflow Applications

Web Applications

Design Enhancements Using LotusScript

Design Enhancements Using Formula Language

View Enhancements

Sample Agents

Miscellaneous Enhancements and Tips for Domino Databases

Data Management

Security

Application Deployment and Maintenance

Troubleshooting

Appendix A. Online Project Files and Sample Applications

Appendix B. IBM® Lotus® Notes® and Domino®Whats Next?



Lotus Notes Developer's Toolbox(c) Tips for Rapid and Successful Deployment
Lotus Notes Developers Toolbox: Tips for Rapid and Successful Deployment
ISBN: 0132214482
EAN: 2147483647
Year: N/A
Pages: 293
Authors: Mark Elliott

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