adds a captcha to any form within a folder that doesn't have a captcha already

add-captcha-to-wffm-forms.ps1

#add captcha to any form that doesn't have one already
$formsRootPath = "master:/sitecore/content/Wbsite1/forms/test"
$wffmFormTemplateId = "{FFB1DA32-2764-47DB-83B0-95B843546A7E}"
$wffmFieldTemplateId = "{C9E1BF85-800A-4247-A3A3-C3F5DFBFD6AA}"
$captchaFieldTemplateId = "{7FB270BE-FEFC-49C3-8CB4-947878C099E5}"
$captchaFieldName = "I'm not a Robot"
$captchFieldSortOrder = 1000
$updatedCount = 0

Write-Host "Getting List of Forms to add Captchas to from: $($formsRootPath)..."

$forms = Get-ChildItem -Path $formsRootPath -Recurse | Where-Object { $_.TemplateId -eq $wffmFormTemplateId }
foreach ($form in $forms) {

    Write-Host "- checking form: $($form.Name) -" -ForegroundColor "yellow";
    
    #get captcha fields in form
    $fields = Get-ChildItem -Item $form
    $captchaFields = $fields | Where-Object { $_.TemplateId -eq $wffmFieldTemplateId -and  $_.Fields["Field Link"].value -eq $captchaFieldTemplateId }
    
    #get the last field and add 100 to its sort position in order to make sure the captcha is the last field
    $lastField = $fields | Select-Object -Last 1
    if($lastField){
        $lastFieldOrder = $lastField.Fields['__Sortorder'].value
        $captchFieldSortOrder = [int]$lastFieldOrder + 100
        #Write-Host "Last Field: $($lastField.Name) - $($lastField.Fields['__Sortorder'].value)"
        #Write-Host "Captcha Sortorder: $($captchFieldSortOrder)"
    }

    #already a captcha on the form - don't add one
    if ($captchaFields) {
        Write-Host "captcha Exists, skipping form" -ForegroundColor "red"
    }
    #add a captcha
    else {
        Write-Host "adding captcha to form..." -ForegroundColor "green"
        $captchaField = New-Item -Path $form.Paths.FullPath -Name $captchaFieldName -ItemType $wffmFieldTemplateId 
        $captchaField.Editing.BeginEdit()
        $captchaField.Fields["Title"].value = $captchaFieldName
        $captchaField.Fields["Field Link"].value = $captchaFieldTemplateId
        $captchaField.Fields["Save"].value = "1"
        $captchaField.Fields["Required"].value = "1"
        $captchaField.Fields["Parameters"].value = "<CaptchaFontWarping>0</CaptchaFontWarping><BackgroundNoiseLevel>0</BackgroundNoiseLevel><LineNoiseLevel>0</LineNoiseLevel>"
        $captchaField.Fields["Localized Parameters"].value = "<Text></Text>"
        $captchaField.Fields["__Sortorder"].value = $captchFieldSortOrder
        $captchaField.Editing.EndEdit()
        Write-Host "captcha added with Sortorder: $($captchFieldSortOrder)"
        $updatedCount ++
    }
}

 Write-Host "-Script Complete: $($updatedCount) forms updated -"