basic feature adding in editor

src/c3nav/editor/forms.py

@@ -0,0 +1,16 @@
+from django.forms import ModelForm
+from django.forms.widgets import HiddenInput
+
+from ..mapdata.models import Feature
+
+
+class FeatureForm(ModelForm):
+    def __init__(self, *args, feature_type, **kwargs):
+        self.feature_type = feature_type
+        super().__init__(*args, **kwargs)
+        self.fields['level'].widget = HiddenInput()
+        self.fields['geometry'].widget = HiddenInput()
+
+    class Meta:
+        model = Feature
+        fields = ['name', 'package', 'level', 'geometry']