merge branch 'master'

composer/schema/field.py

@@ -30,7 +30,7 @@ from zope.component import adapts
 from zope import component
 from zope.i18n.format import DateTimeParseError
 from zope.i18n.locales import locales
-from zope.schema.interfaces import IVocabularyFactory
+from zope.schema.interfaces import IVocabularyFactory, IContextSourceBinder
 from zope.tales.engine import Engine
 from zope.tales.tales import Context
 
@@ -137,7 +137,14 @@ class Field(Component):
                 return terms
             voc = voc.splitlines()
             return [dict(token=t, title=t) for t in voc if t.strip()]
+        elif IContextSourceBinder.providedBy(voc):
+            source = voc(context)
+            terms = component.queryMultiAdapter((source, request), ITerms)
+            if terms is not None:
+                termsList = [terms.getTerm(value) for value in source]
+                return [dict(token=t.token, title=t.title) for t in termsList]
             else:
+                return None
         return [dict(token=t.token, title=t.title or t.value) for t in voc]
 
     def getVocabularyTerms(self, name, context, request):

composer/schema/grid/field.py

@@ -162,6 +162,8 @@ class KeyTableFieldInstance(RecordsFieldInstance):
     def display(self, value):
         headers = [fi.context.title for fi in self.columnFieldInstances]
         rows = []
+        if value is None:
+            value = {}
         for k, v in value.items():
             row = [k]
             for idx, fi in enumerate(self.columnFieldInstances[1:]):