Search drop down in all sites of site collection

Question

I found here a discussion about it:

https://social.technet.microsoft.com/Forums/office/en-US/fdb4c91c-0ecb-4815-a830-8b371aceeace/set-the-search-drop-down-in-all-sites-in-site-collection?forum=sharepointsearch

And a link to an powershell script.

http://sharepointloupe.net/search-navigation-dropdown-sp2013/

In general, I want to get on all sites in my sitecollection the same custom dropdown values. So I found a script here, which I am not able to use:

#region Parameters
param(
    [Parameter(Mandatory = $true)]
    [ValidateSet('site','webapplication')]
    [string]$Scope,

    [Parameter(Mandatory = $true)]
    [string]$URL,

    [bool]$RemoveExisting = $false
    )
if(-not($Scope)) { Throw "You must supply a value for -Scope. Examples -Scope site or -Scope webapplication" }
if(-not($URL)) { Throw "You must supply a value for -URL. Examples -URL http://mysharepoint.com" }
#endregion

#region Functions

#Save the search navigation nodes
$masterweb = Get-SPWeb $URL
$masternodes = $masterweb.Navigation.SearchNav

function Remove-SearchNav([string]$SiteURL)
{
    $site = Get-SPSite $SiteURL

     foreach ($web in $site.AllWebs) 
    {
        $SearchNav = $web.Navigation.SearchNav

        IF ($SearchNav -ne $NULL -and $web.url -ne $site.Rootweb.Url)
        {
            Write-Host -ForegroundColor Green "Removeing Search Navigation for" $web.url;
            foreach($node in $web.Navigation.SearchNav)
            {
                $web.Navigation.SearchNav.delete($node)
            }
        }
        $web.Dispose()
    }

    $site.Dispose()
    Write-Host -ForegroundColor Red "============================================="
}


function Update-SearchNav([string]$SiteURL)
{
 Write-Host -ForegroundColor Red "============================================="
 Write-Host -ForegroundColor Green "Updating Search Navigation at URL " -NoNewline;
 Write-Host -ForegroundColor Green $SiteURL

 remove-varable 
 $site = Get-SPSite $SiteURL

 foreach ($web in $site.AllWebs) 
 { 
  Write-Host -ForegroundColor Red "============================================="
  Write-Host -ForegroundColor Green "Updating Search Navigation at URL " -NoNewline;
  Write-Host -ForegroundColor Green $web.Url

  $SearchNav = $web.Navigation.SearchNav

  IF ($SearchNav -ne $NULL)
  {
   Write-Host -ForegroundColor Red "This Site Search Navigation Already containing values";
  }
  ELSE
  {
   foreach ($node in $masternodes)
   {
    Write-Host -ForegroundColor Green "Adding Search Navigation" $node.Title;
    $web.Navigation.SearchNav.AddAsLast($node)
   }
  }
   $web.Dispose()
 }
 $site.Dispose()
 Write-Host -ForegroundColor Red "============================================="
}

If ($Scope -eq "webApplication")
{
    $WebApplication = Get-SPWebapplication $URL

    if($RemoveExisting -eq $true)
    {
        Foreach ($Sites in $WebApplication.Sites)
        {
            Remove-SearchNav($Sites.URL)
        }
        Write-Host "Cleared the existing search navigation"
    }
    $site.Dispose();
    Foreach ($Sites in $WebApplication.Sites)
    {   
        Update-SearchNav($Sites.url.trim())
    }
}
elseif ($Scope -eq "site")
{
    if($RemoveExisting -eq $true)
    {
        Remove-SearchNav($URL)
        Write-Host "Cleared the existing search navigation"
    }
    Update-SearchNav($URL)
}

Write-Host "Press any key to continue ..."
$x = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")

But I can not figure out what to type in. It alyways throws the error:

The argument ... does not belong to the set "site,webpplication".

Can anyone help me out here? What parameters should I use? Where do I specify the dropdown values? Proberby an easy thing.

Answer 1

Regarding the error you're seeing:

If you use [ValidateSet('site','webapplication')] for your Scope-argument, you can only call -Scope site or -Scope webapplication. If you use something different PowerShell will tell you by raising an exception ("The argument ... does not belong to the set ...")

Explaining the script:

(Be warned: My findings are from examining the script - I have not tested it!)

What I get from the script is that you have to set up the "root" seachnavigation manually and when you run this script it will then copy the seachnavigation to all sub-webs.

So, if you have a WebApplication http://my.sp/ with a SiteCollection on / (I think this is a requirement of the script) then you could set up the searchnavigation on http://my.sp/.

If you then call

.\This-Script -Scope webapplication -Url http://my.sp -RemoveExisting $true

The script will walk every site in the WebApplication and every web in every site and copy the searchnavigation from the rootweb of the site http://my.sp

If you instead call

.\This-Script -Scope site -Url http://my.sp -RemoveExisting $true

the script will walk each subweb of the site at http://my.sp and copy the searchnavigation from the rootweb