in view onclick change value previous and current row

Question

I would like to change the value of a field in the backend document of the clicked row in a view, but also of the previous row. What could be the best way of dooing this ?

Answer 1

Interesting topic. I just gave it a try and found this solution:

I assume you're using a view panel (using something like a repeat instead might make things a bit easier, though). Under "All properties" of your viewPanel look for the property called "data > var" (take care: there's also a "data > data > var", but that's a different thing!). Here you enter a unique name to access your view entries:

<xp:viewPanel rows="30" id="viewPanel1" var="entry">        
    <xp:this.data>
        <xp:dominoView var="view1" viewName="myView"></xp:dominoView>
    </xp:this.data>

I added an extra column making its data property computed, calculating the previous entry using the current entry's parent view Navigator object, and making sure that both the current and the previous entries are valid View Entry objects. Then, as a result I return the previous entry's NoteID value to make sure that I indeed accessed it.

if(!entry.isCategory()){
    var vnav:NotesViewNavigator = entry.getParent();
    vnav.gotoEntry(entry.getDocument())
    var pentry = vnav.getPrev();
    if(pentry!=null){
        pentry.getNoteID();
    }
}

To be able to check this properly I added one more column to show the current entry's NoteID:

entry.getNoteID();

The result looks like this:

So, once you have the previous object you also have access to its document object.

Edit: how to get the viewNavigator object the ordinary way:

simply create your viewNavigator using the parent view object as in

var view = database.getView("myView);
var vnav = view.createViewNav();

On the other hand if you see that entry.getParent() leads to a viewEntryCollection you might as well try to access the prvious entry in a different way:

var vec = entry.getParent();
if (vec.toString().indexOf("ViewEntryCollection")>0){
    var preventry = vec.getPrevEntry(entry);
}