Validation before a object name change

I wasn't able to get what I was looking since I don't believe there is any way to validate after an object's name is changed but before it is saved (only on the click or on save). I created the macro to check "on save" and I created a new attribute called "previousName" that stores the most recent name in case people decide not to revert the changes. 

This is how to code works:

1. User modifies an object and hits save
2. Macro auto runs on object name change
3. Determines if the object occures in multiple models
4. If it shows up in more than one (aka other than the current model), it will pop open a message warning the user that they are about to impact more than their own model
5. If they hit "Ok", it saves the previousName to the current name and ARIS does the rest
6. If they hit "Cancel," it resets the current name to the previousName 
7. If the change only exists in one model, it will auto save the previousName to the current name

Here is a sample of the warning:

Here is the MACRO code (NOTE: Because previousName is a custom made attribute, you need to change the previousName GUID to what yours is)

var selModels = Context.getSelectedModels();
var nLocale = Context.getSelectedLanguage();
var selobjs = Context.getSelectedObjects();
var CONSTANT_PREVNAME = 68838;

for (var i=0;i<selobjs.length;i++)
{
    var occ = Designer.getOccs(selobjs[i]);
    var occModels = []; //this stores the model GUID so we know if we've seen it before
    //for every occurance of this object, we need to see which model it is in
    for (var y=0;y<occ.length;y++)
    {
        var found = false;
        var oModel = Designer.getModel(occ[y]);
        for (var x=0;x<occModels.length;x++)
        {
            if (occModels[x] == Designer.getGUID(oModel))
                found = true;
        }
        if (!found)
            occModels.push(Designer.getGUID(oModel));
    }
    
    //We now know how many models this object occures in. If it's in more than one
    //that we need to indicate that.
    var objType = Designer.getAttribute(selobjs[i], 389, null);
    var previousName = Designer.getAttribute(selobjs[i], CONSTANT_PREVNAME, null);
    var currentName = Designer.getAttribute(selobjs[i], Constants.AT_NAME, null);
    //We only run this if it shows up in more than one model
    if (occModels.length > 1)
    {
        var btnPressed = Dialogs.MsgBox("You are about to change a(n) " +objType+ "'s name to \""+currentName +"\". This object occures in " + (occModels.length - 1) + " other model(s).\nAre you sure you want to continue?", "Warning", Constants.MSGBOX_ICON_WARNING, Constants.MSGBOX_BTN_OKCANCEL);
        switch (btnPressed) { 
        case Constants.MSGBOX_RESULT_OK: 
            //We set the previousName to current one
            Designer.setAttributePersistent(selobjs[i],CONSTANT_PREVNAME,currentName,null);
            break; 
        case Constants.MSGBOX_RESULT_CANCEL: 
            Designer.setAttributePersistent(selobjs[i],Constants.AT_NAME,previousName,null);
            break; 
        default: 
            Dialogs.MsgBox("How did you click something else?"); 
        }
    }
    else
    {
        //This means that it only shows up in one model. This might mean it's a new object or just shows up once
        //either way, we need to set it's prevname to it's current name
        Designer.setAttributePersistent(selobjs[i],CONSTANT_PREVNAME,currentName,null);
    }
}

You will probably need to run a script to auto update all your objects with the previousName attribute set to the current name. Here is a REPORT that will do it. Once again, you need to change the GUID of the previousName attribute!

var oSelGroups = ArisData.getSelectedGroups(); 
var nLocale = Context.getSelectedLanguage();    // Selected database language 
for (var n = 0; n < oSelGroups.length;n++)
{
    var objectsList = oSelGroups[n].ObjDefList(true);
    for (var i = 0; i < objectsList.length; i++) 
    {
        var object = objectsList[i];                    // Current model 
        var objectName = object.Name(nLocale);      // Name of current model 
        var attr = object.Attribute(68838, nLocale); //CHANGE THAT NUMBER TO YOUR ATTRIBUTE NUMBER
        attr.setValue(objectName);
    }
}

Awesome, thanks for the suggestion.