Set value into place holder at unggah materi form

app/forms.py

@@ -28,6 +28,8 @@ class UploadMateriForm(forms.ModelForm):
             if (field_name == "categories"):
                 continue
             field.widget.attrs["class"] = "form-control"
+            field.widget.attrs["placeholder"] = field.initial
+            field.initial = ""
         self.fields['categories'].widget.attrs.update({'class' : "native"})