backport from bbmaster2: add field property 'visible'; add FieldGroup

composer/schema/field.py

@@ -42,10 +42,19 @@ from cybertools.composer.schema.schema import formErrors
 from cybertools.util.format import toStr, toUnicode
 
 
+class FieldGroup(object):
+
+    def __init__(self, name, label, sublabels=[]):
+        self.name = name
+        self.label = label
+        self.sublabels = sublabels
+
+
 class Field(Component):
 
     implements(IField)
 
+    visible = True
     required = False
     readonly = False
     nostore = False

composer/schema/interfaces.py

@@ -215,6 +215,7 @@ class IField(IComponent):
                         '(only for dropdown and other selection fields)'),
                 required=False,)
 
+    visible = Attribute('Should the field be shown in display views?')
     fieldRenderer = Attribute('Name of a renderer (i.e. a ZPT macro or '
                         'an adapter) that is responsible for rendering '
                         '(presenting) the field as a whole.')