Fixed #13009 -- Added BoundField.widget_type property.

django/forms/boundfield.py

@@ -1,4 +1,5 @@
 import datetime
+import re
 
 from django.forms.utils import flatatt, pretty_name
 from django.forms.widgets import Textarea, TextInput
@@ -227,6 +228,10 @@ class BoundField:
             attrs['disabled'] = True
         return attrs
 
+    @property
+    def widget_type(self):
+        return re.sub(r'widget$|input$', '', self.field.widget.__class__.__name__.lower())
+
 
 @html_safe
 class BoundWidget: