[Code] – Mail Merge/Form Letters in Lotuscript

Back in 2003 or so, I wrote some code to take a form letter (stored in a Notes document) and merge that with data stored in another Notes document in order to create a personalized letter that could be printed or emailed. Back then we were still on Notes 5, so very limited rich text functionality and no budget to purchase Ben’s excellent Midas LSX. The end result worked, but any formatting in the form letter template was lost.

Eventually we upgraded to Notes 7 and later to Notes 8.5. Now I had much more rich text functionality to play with, so I rewrote the code as a class. I added some additional functionality, like formatting values using a mask, and some lookup functionality. The class support all kind of formatting in the form letter template, including fonts, colors, tables, graphics, etc.

This is what a typical form letter look like:

Form Letter Template

As you can see, the placeholders are using curly brackets to hold either a field name or a command. The commands are indicated by the percent sign (%). There can also be different arguments, for formatting, lookup into the NAB/Domino Directory, etc. I even have functionality to present a nice dialog box where the user can pick recipient from a list of everyone associated with the claim (as this is from a claim system used by an insurance company).

Here is a description of the syntax for the placeholders:

{fieldname}
Displays the content of the specified field from the selected source document. Additional (optional) formatting arguments can be used, for example to format values to desired format.
By using the argument LOSSNOTICE or SOURCE=”LOSSNOTICE” the value of the field is retrieved from the Loss Notice instead of the current source document, e.g. {adjuster LOSSNOTICE}.
Use the argument SELECTED to get the fields name, address, city, state, zip, email, SSN and DoB for the recipient selected in the separate dialog box.
{email SELECTED} will return the email address for the recipient selected, either producer, insured or one of the claimants.
The optional argument NABFIELD will retrieve the value of the specified field from the NAB for the user specified in the field (field must be spelled exactly as in the NAB design):
{Adjuster NABFIELD=”JobTitle”} will return the title of the person in the ‘Adjuster’ field.

{%DATE}
Displayes the current date. Default format is mm/dd/yyyy but the FORMAT argument can be used to change the value into desired format. The old {%DUS}, {%DUT}, etc have been removed and must be replaced with the new format, as they don’t work.
Examples of date formats:
FORMAT=”mmmm d, yyyy” -> March 3, 2010
FORMAT=”yyyy-mm-dd” -> 2010-03-01
FORMAT=”mmmm yyyy” -> March 2010

{%TIME}
Displayes the current time. Default format is hh:nn:ss (24h universal format) but like with the date, the FORMAT argument can be used to change the value into desired format. Note that minutes use the letter N, not M (which is used for month)! The old {%TUS}, {%TUT}, etc have been removed and must be replaced with the new format, as they don’t work.
Examples of time formats:
FORMAT=”h.nn ampm” -> 2.34 pm
FORMAT=”hh.nn ampm” -> 02.34 pm
FORMAT=”hh:nn” -> 14:34

{%INPUT PROMPT=”Please enter the amount” FORMAT=”$#,##0.00″ REQUIRED SETVAR=”variablename”}
Asks the user to enter a value. The optional arguemnt REQUIRED is used to force the user to enter a value (blank values will not be accepted). FORMAT can be used to format the value entered, for example into correct currency format (as shown above) or desired date format.
Additionally, SETVAR=”variablename” can be used to store the value entered for re-use later in the document, where {%GETVAR NAME=”variablename”} is used to retrieve/display it.

{%GETVAR NAME=”variablename”}
Get the value previously stored in an {%INPUT} command using the SETVAR argument.

{%USER} or {%USR}
Displayes the current user’s name. It will be the name of the user creating the form letter. {%USR} have been deprecated, it is just available for backwards compatibility. The optional argument NABFIELD will retrieve the value of the specified field from the NAB for the current user (field must be spelled exactly as in the NAB design):
{%USER NABFIELD=”JobTitle”}

{%PICKLIST SERVER=”servername” DB=”database” VIEW=”viewname” FIELD=”fieldname” PROMPT=”text}
This command let the user select a document from a list, and returns the value in the
specified field. SERVER and DB are optional, and defaults to current server and current database. VIEW, FIELD and PROMPT are required. Optionally CLEARCACHE can be used for multiple lookups to the same view where different documents are to be selected.

By using the FILTER argument, the document collection will be filtered to only those where the category (in a categorized view) matches the value in the specified field in the source document. E.g: VIEW=”(ClaimantList)” FILTER=”ParentUNID” will only show documents in the (categorized) lookup view with the same ParentUNID as the document being processed (merged).
By specifying the optional keyword/argument CLAIMANT, the VIEW, PROMPT and FILTER argumenst are set automatically as follows: VIEW=”(SysLookupClaimantsCatByParentUNID)” PROMPT=”Select Claimant:” FILTER=”ParentUNID”.

{%PICKLIST VIEW=”viewname” FIELD=”fieldname” CACHED}
This command is used after the initial picklist command. It will retrieve additional fields from the same (cached) document, so the user only have to select the document once but can retrieve multiple field values from it. If another {%PICKLIST} command is encountered with the CLEARCACHE argument, the cached document will not be available anymore.

And now the code, from a script library called Class.MailMerge.
Right now I don’t have the time to move the code out of my application and build a working sample database (the form letters are actually stored in a separate database), but I hope that this code can still help someone.

Option Public
Option Declare

'*** Script Library for MailMerge, preserving formatting in Rich Text field
'*** Requires Notes 6.5 or higher (tested in 7.0, 8.0 and 8.5)
'*** Copyright (c) Karl-Henry Martinsson 2003-2012
'*** Email: texasswede@gmail.com
'*** Websites: www.texasswede.com & blog.texasswede.com
'*** This code can be user in any application, as long as this notice
'*** is left intact. Also, the copyright information must be published in
'*** any documentation and on the About page, or similar location visible
'*** to the users, if they can not easily view/access the source code.
'*** If this code saves you time and helps you, consider a donation.

Const TYPE_FIELD = 1
Const TYPE_CMD = 2
Dim picklist List As NotesDocument 
Dim variable List As String

Class PlaceHolderData
    Public placeholderstring As String
    Public placeholdertype As Integer
    Public fieldname As String
    Public fieldtype As Long
    Public command As String
    Public argument List As String
    Public text As String 

    Public Sub New(Byval placeholder As String)
        ' Store the original placeholder
        placeholderstring = placeholder        
        ' Strip out curly brackets before and after
        placeholder = Mid$(placeholder,2,Len(placeholder)-2)
        If Left$(placeholder,1) = "%" Then    ' Check if it is a command
            Me.placeholdertype = TYPE_CMD
            ' Remove the % in front of the command
            placeholder = Right$(placeholder,Len(placeholder)-1)    
        Else
            Me.placeholdertype = TYPE_FIELD
        End If
        Call ParsePlaceHolder(placeholder)
    End Sub

    Private Sub ParsePlaceHolder(Byval placeholder As String)
        Dim startpos As Integer 
        Dim midpos As Integer 
        Dim endpos As Integer 
        Dim args As Integer                            ' Boolean to indicate argements present or not
        Dim argstring As String
        Dim qt As Integer 
        Dim eq As Integer
        Dim char As String
        Dim argname As String
        Dim argvalue As String
        Dim i As Integer

        ' First we need to find the end of the command or field.
        ' It is either at the end of the placeholder or when we encounter a space
        endpos = Instr(placeholder," ")            ' Search for space
        If endpos = 0 Then                                ' No space, e.g. no arguments
            endpos = Len(placeholder)                
            args = False
        Else                                                    ' We have some arguments
            endpos = endpos -1                        ' Reduce by one to get rid of trailing space
            args = True
        End If
        If Me.placeholdertype = TYPE_CMD Then
            Me.command = Ucase(Left$(placeholder,endpos))
        Else
            Me.fieldname = Left$(placeholder,endpos)            
        End If
        If args = True Then 
        ' Add code here to get arguments
            argstring = Fulltrim(Right$(placeholder,Len(placeholder)-endpos)    )    ' Get arguments only
            qt = False
            eq = False
            For i = 1 To Len(argstring)
                char = Mid$(argstring,i,1)    ' Get character
                If eq = True Then
                    argvalue=argvalue & char
                Else
                    argname=argname & char
                End If

                If char = |"| Then                    ' We found a quote
                    If qt = False Then
                        qt = True                        
                    Else
                        qt = False
                    End If
                Elseif char="=" Then             ' Found a equal, e.g. now we are getting to a value
                    If eq = False Then
                        eq = True                        
                    Else
                        eq = False
                    End If
                End If
                If i = Len(argstring) Then        ' We are at the end
                    char = " "                        ' Fake a space
                End If
                If char = " " Then                    ' Found a space
                    If qt = False Then            ' Make sure it is not within quotes
                        eq = False                    ' Now we are back at argument name again
                        If Right$(argname,1) = "=" Then                    
                            argname = Left$(argname,Len(argname)-1)    ' Remove trainling equal sign
                        End If
                        Me.argument(Ucase(argname)) = Fulltrim(Replace(argvalue,|"|,""))    ' Create list item, remove quotes
                        argname = ""
                        argvalue = ""
                    End If
                End If
            Next
        End If
    End Sub

    Public Sub ProcessPlaceHolder(sourcedoc As NotesDocument, lossnotice As NotesDocument)
        Dim session As New NotesSession                
        Dim thisdb As NotesDatabase
        Dim ws As New NotesUIWorkspace
        Dim pickcollection As NotesDocumentCollection
        Dim pickdoc As NotesDocument
        Dim servername As String
        Dim dbname As String
        Dim viewname As String        
        Dim fieldvalue As String
        Dim formatstring As String
        Dim inputstr As String
        Dim prompt As String
        Dim title As String
        Dim default As String
        Dim filterfield As String
        Dim filtervalue As String
        Dim nabdoc As NotesDocument

        ' Read any formatting specified in arguments
        If Iselement(Me.argument("FORMAT")) Then
            formatstring = Me.argument("FORMAT")
        Elseif Iselement(Me.argument("FMT")) Then
            formatstring = Me.argument("FMT")
        Else 
            formatstring = ""
        End If

        If placeholdertype = TYPE_FIELD Then
            If sourcedoc Is Nothing Then
                Msgbox "Error: sourcedoc not defined, unable to retrieve data from field '" & Me.fieldname & "'.",,"MailMerge::PlaceHolder.ProcessPlaceHolder()"
                fieldvalue = "*** ERROR ***"                
                Exit Sub
            Else
                If Iselement(Me.Argument("LOSSNOTICE")) Then
                    fieldvalue = lossnotice.GetItemValue(Me.fieldname)(0)
                    Me.FieldType = lossnotice.GetFirstItem(Me.fieldname).Type
                Elseif Iselement(Me.Argument("SOURCE")) Then
                    If Ucase(Me.Argument("SOURCE")) = "LOSSNOTICE" Then
                        fieldvalue = lossnotice.GetItemValue(Me.fieldname)(0)
                        Me.FieldType = lossnotice.GetFirstItem(Me.fieldname).Type
                    End If
                Else
                    fieldvalue = sourcedoc.GetItemValue(Me.fieldname)(0)
                    Me.FieldType = sourcedoc.GetFirstItem(Me.fieldname).Type
                End If
                If formatstring <> "" Then
                    If Isdate(fieldvalue) Then                    ' Check if it might be a date/time value
                        fieldvalue = Format$(Cdat(fieldvalue),formatstring)
                    Elseif Isnumeric(fieldvalue) Then    ' Check if it might be a numeric value
                        fieldvalue = Format$(Cdbl(fieldvalue),formatstring)
                    End If
                End If
            End If
            Me.text = fieldvalue
        Else
            ' *** Fix legacy commands
            If Ucase(Me.Command) = "USR" Then    
                Me.Command = "USER"
            End If
            ' *** Process placeholder commands
            Select Case Ucase(Me.Command)
            Case "USER" :
                If Iselement(Me.Argument("NABFIELD")) Then
                    Me.Text = GetNABField(session.CommonUserName, Me.Argument("NABFIELD")) 
                Else
                    Me.Text = session.CommonUserName 
                End If
            Case "INPUT"        :        ' *** Ask the user to enter information
                prompt = Me.Argument("PROMPT")
                If Iselement(Me.Argument("TITLE")) Then
                    title = Me.Argument("TITLE")
                Else
                    title = "FormLetter Mail Merge"
                End If
                If Iselement(Me.Argument("DEFAULT")) Then
                    default = Me.Argument("DEFAULT")
                Else
                    default = ""
                End If
                If Iselement(Me.Argument("REQUIRED")) Then
                    ' Repeat until user enter a value
                    Do                
                        inputstr = Inputbox$(prompt, title, default)                        
                    Loop While Fulltrim(inputstr)=""
                Else
                    inputstr = Inputbox$(prompt, title, default)                        
                End If
                If formatstring <> "" Then
                    If Isdate(inputstr) Then                    ' Check if it might be a date/time value
                        inputstr = Format$(Cdat(inputstr),formatstring)
                    Elseif Isnumeric(inputstr) Then    ' Check if it might be a numeric value
                        inputstr = Format$(Cdbl(inputstr),formatstring)
                    End If
                End If
                Me.Text = inputstr
                ' *** Check for SETVAR argument
                If Iselement(Me.argument("SETVAR")) Then
                    variable(Ucase(Me.argument("SETVAR")))=Me.Text
                End If

            Case "PICKLIST"    :        ' Present the user with a list of documents to choose from
                Set thisdb = session.CurrentDatabase
                Set pickdoc = Nothing        ' Clear pickdoc
                ' *** We need to get the view argument to perform a lookup into the list...
                If Iselement(Me.Argument("VIEW")) Then
                    viewname = Ucase(Me.Argument("VIEW"))
                End If
                ' *** If CLAIMANT argument is specified, set arguments to predefined values
                If Iselement(Me.Argument("CLAIMANT")) Then
                    Me.Argument("VIEW") = "(SysLookupClaimantsCatByParentUNID)"
                    Me.Argument("FILTER") = "ParentUNID"
                    Me.Argument("PROMPT") = "Select Claimant:"
                End If
                ' *** Check if user requested to clear cached data
                If Iselement(Me.Argument("CLEARCACHE")) Then
                    If Iselement(picklist(viewname)) Then
                        Erase picklist(viewname)    ' Delete this cached item (document)
                    End If
                End If
                ' *** If user want to use cached data, load pickdoc with cached data
                If Iselement(Me.Argument("CACHED")) Then
                    If Iselement(picklist(viewname)) Then
                        Set pickdoc = picklist(viewname)
                    End If
                End If
                If pickdoc Is Nothing Then    ' No cached document for this view 
                    If Iselement(Me.Argument("SERVER")) Then
                        servername = Me.Argument("SERVER")
                    Else
                        servername = thisdb.Server
                    End If
                    If Iselement(Me.Argument("DB")) Then
                        dbname = Me.Argument("DB")
                    Else
                        dbname = thisdb.FilePath 
                    End If
                    If Iselement(Me.Argument("VIEW")) Then
                        viewname = Me.Argument("VIEW")    
                    Else
                        Msgbox "Missing Required Argument - VIEW" & Chr$(13) & Me.PlaceHolderString,,"Missing Argument"
                        Exit Sub
                    End If
                    If Iselement(Me.Argument("PROMPT")) Then
                        prompt = Me.Argument("PROMPT")
                    Else
                        Msgbox "Missing Required Argument - PROMPT" & Chr$(13) & Me.PlaceHolderString,,"Missing Argument"
                        Exit Sub
                    End If
                    If Iselement(Me.Argument("TITLE")) Then
                        title = Me.Argument("TITLE")
                    Else
                        title = "FormLetter Mail Merge"
                    End If
onemoretime:                
                    If Iselement(Me.Argument("FILTER")) Then
                        filterfield = Me.Argument("FILTER")                            ' Get field to filter on
                        filtervalue = sourcedoc.GetItemValue(filterfield)(0)        ' Get value of field on source document
                        Set pickcollection = ws.PicklistCollection(3, False, servername, dbname, viewname, title, prompt, filtervalue)
                    Else
                        Set pickcollection = ws.PicklistCollection(3, False, servername, dbname, viewname, title, prompt)
                    End If
                    If Isempty(pickcollection) Then
                        If Iselement(Me.Argument("REQUIRED")) Then
                            If Ucase(Me.Argument("REQUIRED")) <> "NO" Then
                                Msgbox "You need to select one item/document in the list.", , title
                                Goto onemoretime
                            End If
                        End If
                    Else
                        Set pickdoc = pickcollection.GetFirstDocument        
                    End If
                    If pickdoc Is Nothing Then
                        Msgbox "Error: No document returned.",,"MailMerge::PlaceHolder.ProcessPlaceHolder()"
                        Exit Sub
                    End If
                    Set picklist(Ucase(viewname)) = pickdoc
                End If
                If Iselement(Me.Argument("FIELD")) Then
                    fieldname = Me.Argument("FIELD")
                Else
                    Msgbox "Missing Required Argument - FIELD" & Chr$(13) & Me.PlaceHolderString,,"Missing Argument"                        
                    Exit Sub
                End If
                inputstr = pickdoc.GetItemValue(fieldname)(0)
                If formatstring <> "" Then
                    If Isdate(inputstr) Then                    ' Check if it might be a date/time value
                        inputstr = Format$(Cdat(inputstr),formatstring)
                    Elseif Isnumeric(inputstr) Then    ' Check if it might be a numeric value
                        inputstr = Format$(Cdbl(inputstr),formatstring)
                    End If
                End If
                Me.Text = inputstr
                ' *** Check for SETVAR argument
                If Iselement(Me.argument("SETVAR")) Then
                    variable(Ucase(Me.argument("SETVAR")))=Me.Text
                End If

            Case "DATE"            :         ' *** Current Date
                If formatstring = "" Then 
                    Me.Text = Format$(Now(),"mm/dd/yyyy")
                Else
                    Me.Text = Format$(Now(),formatstring)
                End If

            Case "TIME"            :         ' *** Current Time
                If formatstring = "" Then 
                    Me.Text = Format$(Now(),"hh:nn:ss")
                Else
                    Me.Text = Format$(Now(),formatstring)
                End If

            Case "GETVAR"    :    ' *** Get variable previously stored
                If Iselement(variable(Ucase(Me.argument("NAME")))) Then
                    Me.Text = variable(Ucase(Me.argument("NAME")))
                End If

            Case Else                :
                Me.Text = "**** undefined command ***"

            End Select
        End If

    End Sub

    ' *** Private supporting functions/subs

    Private Function GetNABField(user As String, fieldname As String) As String
        Dim session As New NotesSession
        Dim curdb As NotesDatabase    
        Dim nabdb As NotesDatabase
        Dim view As NotesView
        Dim col As NotesDocumentCollection
        Dim userdoc As NotesDocument

        Set curdb = session.CurrentDatabase
        Set nabdb = New Notesdatabase(curdb.Server, "names.nsf")
        Set view = nabdb.GetView("PeopleByFirstname")
        Set col = view.GetAllDocumentsByKey(user)
        If col Is Nothing Then
            GetNABField = ""
            Exit Function
        End If
        Set userdoc = col.GetFirstDocument
        If userdoc Is Nothing Then
            GetNABField = ""
            Exit Function
        End If
        GetNABField = userdoc.GetItemValue(fieldname)(0)
    End Function

End Class

Class MailMergeObject
    Public templatedoc As NotesDocument    ' Where to get layout from
    Public sourcefield As NotesRichTextItem    
    Public targetfield As NotesRichTextItem    ' Where to put the merged text
    Public placeholder List As PlaceHolderData
    Private sourcedoc As NotesDocument     ' The document containing data to be merged
    Private maindoc As NotesDocument        ' The main document for the processed document
    Private tempbody As NotesRichTextItem        ' Temporary copy of body field for this class/instance

    Public Sub New()

    End Sub

    Public Sub SetSourceDoc(doc As NotesDocument)
        Set sourcedoc = doc                
    End Sub

    Public Sub SetMainDoc(doc As NotesDocument)
        Set maindoc = doc
    End Sub

    Public Function LoadTemplate() As Integer
        Dim body As NotesRichTextItem
        Dim temp As String            
        Dim bodytext As String
        Dim startpos As Long
        Dim endpos As Long
        Set sourcefield = templatedoc.GetFirstItem("Body")    ' Put template body field (rich text) into global object
        Set body = sourcefield                                ' Put rich text into temporary body object
        bodytext = body.GetUnformattedText()
        startpos = Instr(bodytext,"{")
        Do While startpos > 0
            endpos = Instr(startpos,bodytext,"}")
            If endpos>0 Then
                temp = Mid$(bodytext,startpos,endpos-startpos+1)
                Set placeholder(temp & "~" & startpos) = New PlaceHolderData(temp)    ' Add to list of placeholder objects        
            End If
            startpos = Instr(endpos,bodytext,"{")
        Loop
    End Function

    Public Function MergedRichText() As NotesRichTextItem
        Dim range As NotesRichTextRange         
        Dim cnt As Integer
        Set tempbody = sourcefield
        Set range = tempbody.CreateRange 
        Forall p In placeholder
            Call p.ProcessPlaceHolder(sourcedoc, maindoc)
            If p.text = "" Then
                p.text = " -- "
            End If
            cnt =  range.FindAndReplace(p.placeholderstring, p.text, 1+4+8+16)            
        End Forall
        Call tempbody.Compact 
        Call tempbody.Update 
        Set targetfield = tempbody
        Set MergedRichText = tempbody
    End Function    

    Public Function Content() As NotesRichTextItem
        Set Content = targetfield
    End Function

End Class

I will try to post some sample code later, using this script library.

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