Question

QueryPaste script library

Asked by: shuboarder

Hi,

I have written a small script library to handle pasting into views in Lotus Notes.
If I use the library code directly in the view's QueryPaste event it will work and the document will not be pasted.

If I use the code in a library the document is still pasted after the code has run...

Now, I'm pretty sure this is because the continue = false is not globally recognised between the QueryPaste event and the script library call.

My question is therefore... How can I pass the value of continue back to the QueryPaste event after my call to the script library?
OR...
How can I terminate all code at the point of realising the document should not be pasted?

I should perhaps explain that I have around 100 views in this database and I am checking the current user against another database to see if they have access to paste documents.
I would prefer to set this up in a library so I do not have to repeat and maintain the same code across 100 views.

Thanks for your help in advance!

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Asked On
2009-09-21 at 07:49:17ID24748459
Tags

Lotus Notes

,

Domino Designer

Topics

Cascading Style Sheets (CSS)

,

Lotus Notes

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Answers

 

by: sjef_bosmanPosted on 2009-09-21 at 08:33:15ID: 25383966

Declare your function as
      Sub MyQuerypaste(Source As Notesuiview, Continue As Variant)

and calll your function from the view's QueryPaste event with
      Call Querypaste(Source, Continue)

These variables aren't global indeed, so you have to pass them.

 

by: sjef_bosmanPosted on 2009-09-21 at 08:33:50ID: 25383977

Could you paste your view's QueryPaste-code here, maybe?

 

by: Bill-HansonPosted on 2009-09-21 at 09:38:08ID: 25384733

Here's the function from my own library.  Hope this helps.

Public Sub ViewPreventPaste(Source As Notesuiview, Continue As Variant)
	
	'/**
	' * Documents are prevented from being pasted into the specified view and a message box is displayed to the user.
	' * Place this function in a view's Querypaste event.
	' * @param Source A handle to the view into which the documents are being pasted.
	' * @param Continue This parameter is set to False to prevent pasting.
	' */
	
	Continue = False
	Msgbox "Pasting is not permitted in this view.", MB_ICONSTOP, Source.View.Parent.Title
	
End Sub

                                              
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by: BlackmoorianPosted on 2009-09-21 at 16:26:30ID: 25388593

Unfortunately I don't know of a way to include this without touching every view. However once the groundwork is laid in each view you will only have to make code changes to one location...

You need to create a Script Library => MyScriptLibrary
Include the Sub MyQuerypaste(Source As Notesuiview, Continue As Variant) as mentioned by sjef in MyScriptLibrary
In each view that you want this to pertain to you must:
     Add the following line to the Global -> OPTIONS section of the view:
             Use "MyScriptLibrary"
     Add the forementioned call statement to the QueryPaste section => Call MyQuerypaste(Source, Continue)




 

by: mbonaciPosted on 2009-09-22 at 00:30:44ID: 25390320

I see you already got a few answers, so I'll join in.

Sub StopPasting checks the user's organizational unit to determine whether he can paste (copy) documents.

As it's already said, you have to pass Continue as an argument and since it's passed by reference, it will be changed and it'll affect the QueryPaste outcome.

'libAllViews:
 
Sub StopPasting( Continue As Variant )
	On Error Goto ErrHandler
	Dim s As New NotesSession
	Dim n As New NotesName( s.UserName )
	
	If Not Ucase( n.OrgUnit1 ) = "OU_name" Then
		Msgbox "Document copying is not allowed!" + Chr$(13), 16, "Warning"
		Continue = False
	End If
	
leave:
	Exit Sub
ErrHandler:
	Msgbox |libAllViews - Sub "StopPasting"| & Error$ & " in line " & Cstr( Erl ) & " " & Err, 16, "Error"
	Resume leave
	
End Sub
 
 
 
'In every view:
Use "libAllViews"
 
Sub Querypaste(Source As Notesuiview, Continue As Variant)
	Call StopPasting( Continue )
End Sub

                                              
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by: sjef_bosmanPosted on 2009-09-22 at 00:44:47ID: 25390375

A wild guess: in your code, did you use by any chance
      MyQuerypaste(Continue)
instead of
      Call MyQuerypaste(Continue)

Because that would indeed change everything...

 

by: mbonaciPosted on 2009-09-22 at 00:50:23ID: 25390407

As I understood, reading shuborader's question, my guess is that he did not send Continue as an argument, but just hoped he could change it as a global (lib) variable from the lib's function.

Sjef,
I didn't know you can call the method like that. Maybe you meant like this, without parentheses:

     MyQuerypaste Continue

like Msgbox is often called?

 

by: mbonaciPosted on 2009-09-22 at 00:51:09ID: 25390412

If so, how that could change anything?

 

by: mbonaciPosted on 2009-09-22 at 00:53:03ID: 25390423

Oh, I see (from Designer help):

For a sub or a function, do not use parentheses around the argument list (Syntax 2) unless you are passing a single argument by value to the sub or function (Syntax 3).

Syntax 1
Call subOrFunction [ ( [ argList ] ) ]
Syntax 2
subOrFunction [ argList ]
Syntax 3
subOrFunction ( argPassedByVal )
Syntax 4 (functions only)
returnVal = function [ ( [ argList ] ) ]

 

by: mbonaciPosted on 2009-09-22 at 00:55:41ID: 25390434

This is the first time I hear about this syntax.

Sjef
did you know about this earlier, or you also stumbled on it answering this question?

 

by: sjef_bosmanPosted on 2009-09-22 at 00:59:52ID: 25390449

Indeed. Assuming that the subroutine MyQuerypaste alters the value of its first parameter, you'll see that calling the sub like
      MyQuerypaste(Continue)
won't change the value of Continue, whereas
      Call Querypaste(Continue)
does modify the value.

The difference is that the first call the parameter is passed by value (since it is an expression).

 

by: sjef_bosmanPosted on 2009-09-22 at 01:06:10ID: 25390479

You could say I stumbled... I was developing a subroutine, defined as
      Sub QSort(somearray As Variant)
I called it as
      QSort(myarray)
and I have been debugging for the best of a day to try to understand why I didn't get a sorted array back, while right at the end of the sub the contents of the array was completely sorted.

All I had to do was change the call into
      Call QSort(myarray)
or
      QSort myarray

From that time, I ALWAYS use the word Call when calling a subroutine.

Hey, I'm old school, I used a lot of C: no "Call", only pass by value, easy...

 

by: shuboarderPosted on 2009-09-22 at 06:46:51ID: 25392726

Wow, I'm overwhelmed by the number of responses!

In the end it was as simple as sticking the word "public" before the word "sub" - highlighted in Bill-Hanson's example. I was almost there, but could have spent hours looking for this problem!

Thanks all!

 

by: sjef_bosmanPosted on 2009-09-22 at 06:56:57ID: 25392848

At the start of the script library, you can add, in the (Options) section:

Option Public

All subs will then be Public by default.

20120131-EE-VQP-002

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