fix modellist field/widget labels list

with previous commit fields could be filtered according to form
permissions

abilian/web/forms/fields.py

@@ -106,6 +106,26 @@ class ModelFieldList(FilterFieldListMixin, BaseModelFieldList):
   Filter empty entries before saving and refills before displaying
   """
 
+  def __init__(self, *args, **kwargs):
+    super(ModelFieldList, self).__init__(*args, **kwargs)
+
+    # build visible field list for widget. We must do it during form
+    # instanciation so as to have permission filtering
+    field_names = []
+    labels = []
+    fieldsubform = self.unbound_field.bind(form=None, name='dummy',
+                                           _meta=self.meta)
+    subform = fieldsubform.form_class()
+    for f in subform:
+      if f.is_hidden:
+        continue
+      name = f.short_name
+      field_names.append(name)
+      labels.append(f.label.text if f.label else f.name)
+
+    self._field_names = field_names
+    self._field_labels = labels
+
   def __call__(self, **kwargs):
     """
     Refill with default min_entry, which were possibly

abilian/web/forms/widgets.py

@@ -1347,18 +1347,8 @@ def render_view(self, field, **kwargs):
       return render_template(self.template, field=field, labels=(),
                              rows=(), **kwargs)
 
-    field_names = []
-    labels = []
-
-    fieldsubform = field.unbound_field.bind(form=None, name='dummy', _meta=field.meta)
-    subform = fieldsubform.form_class()
-    for f in subform:
-      if f.is_hidden:
-        continue
-      name = f.short_name
-      field_names.append(name)
-      labels.append(f.label.text if f.label else f.name)
-
+    field_names = field._field_names
+    labels = field._field_labels
     data_type = field.entries[0].object_data.__class__.__name__ + 'Data'
     Data = namedtuple(data_type, field_names)
     labels = Data(*labels)