add form validation on memory widget

netbox/utilities/forms/fields.py

@@ -177,8 +177,12 @@ class MemoryField(forms.MultiValueField):
     def compress(cls, data):
         if data:
             size, unit = data
-            if size:
+            if size and not unit:
+                raise forms.ValidationError("Memory unit cannot be blank.")
+            elif size and unit:
                 return size * cls.MULTIPLIERS[unit]
+            elif not size and unit:
+                raise forms.ValidationError("Please enter a memory value when unit is selected.")
 
 
 #

netbox/utilities/templates/form_helpers/render_field.html

@@ -112,7 +112,7 @@
             {{ field }}
             {% if bulk_nullable %}
                 <div class="form-check my-1">
-                    <input type="checkbox" class="form-check-input" name="_nullify" value="{{ field.name }}_0" />
+                    <input type="checkbox" class="form-check-input" name="_nullify" value="{{ field.name }}" />
                     <label class="form-check-label">Set Null</label>
                 </div>
             {% endif %}