Fix Buefy "row grids" when viewing parent; add basic file upload support

tailbone/templates/forms/deform_buefy.mako

@@ -20,6 +20,10 @@
 
             <b-field horizontal
                      label="${form.get_label(field.name)}"
+                     ## TODO: is this class="file" really needed?
+                     % if isinstance(field.schema.typ, deform.FileData):
+                     class="file"
+                     % endif
                      % if field.error:
                      type="is-danger"
                      :message='${form.messages_json(field.error.messages())|n}'
@@ -58,6 +62,28 @@
   </div>
 </script>
 
+<script type="text/javascript">
+
+  let TailboneFormData = {
+
+      ## TODO: ugh, this seems pretty hacky.  need to declare some data models
+      ## for various field components to bind to...
+      % if not form.readonly:
+          % for field in form.fields:
+              % if field in dform:
+                  <% field = dform[field] %>
+                  % if isinstance(field.schema.typ, colander.Date):
+                      field_model_${field.name}: null,
+                  % elif isinstance(field.schema.typ, deform.FileData):
+                      field_model_${field.name}: null,
+                  % endif
+              % endif
+          % endfor
+      % endif
+  }
+
+</script>
+
 
 <div id="tailbone-form-app">
   <tailbone-form></tailbone-form>