Add "hidden" concept for form fields

i.e. include hidden fields but don't show label or other dressing

tailbone/forms2/core.py

@@ -320,10 +320,11 @@ class Form(object):
     """
     Base class for all forms.
     """
+    update_label = "Save"
 
     def __init__(self, fields=None, schema=None, request=None, readonly=False, readonly_fields=[],
                  model_instance=None, model_class=None, nodes={}, enums={}, labels={}, renderers=None,
-                 widgets={}, defaults={}, validators={}, required={}, helptext={},
+                 hidden={}, widgets={}, defaults={}, validators={}, required={}, helptext={},
                  action_url=None, cancel_url=None):
 
         self.fields = None
@@ -346,6 +347,7 @@ class Form(object):
             self.renderers = self.make_renderers()
         else:
             self.renderers = renderers or {}
+        self.hidden = hidden or {}
         self.widgets = widgets or {}
         self.defaults = defaults or {}
         self.validators = validators or {}
@@ -588,6 +590,9 @@ class Form(object):
         else:
             self.renderers[key] = renderer
 
+    def set_hidden(self, key, hidden=True):
+        self.hidden[key] = hidden
+
     def set_widget(self, key, widget):
         self.widgets[key] = widget
 
@@ -681,6 +686,11 @@ class Form(object):
         context['render_field_readonly'] = self.render_field_readonly
         return render('/forms2/deform.mako', context)
 
+    def field_visible(self, field):
+        if self.hidden and self.hidden.get(field):
+            return False
+        return True
+
     def render_field_readonly(self, field_name, **kwargs):
         label = HTML.tag('label', self.get_label(field_name), for_=field_name)
         field = self.render_field_value(field_name) or ''

tailbone/templates/forms2/deform.mako

@@ -20,11 +20,8 @@ ${h.csrf_token(request)}
     % elif field in dform:
         <% field = dform[field] %>
 
-    ##       % if field.requires_label:
+        % if form.field_visible(field.name):
             <div class="field-wrapper ${field.name} ${'error' if field.error else ''}">
-    ##             % for error in field.errors:
-    ##                 <div class="field-error">${error}</div>
-    ##             % endfor
               % if field.error:
                   <div class="field-error">
                     % for msg in field.error.messages():
@@ -61,9 +58,10 @@ ${h.csrf_token(request)}
                 % endif
             % endif
 
-    ##       % else:
-    ##           ${field.render()|n}
-    ##       % endif
+        % else:
+            ## hidden field
+            ${field.serialize()|n}
+        % endif
 
     % endif