[Checkins] SVN: grok/trunk/src/grok/ do not allow both a render-method and a template

[Wolfgang Schnerring]

Log message for revision 70685:
  do not allow both a render-method and a template

Changed:
  U   grok/trunk/src/grok/_grok.py
  A   grok/trunk/src/grok/tests/view/eithertemplateorrender.py

-=-
Modified: grok/trunk/src/grok/_grok.py
===================================================================
--- grok/trunk/src/grok/_grok.py	2006-10-16 12:03:59 UTC (rev 70684)
+++ grok/trunk/src/grok/_grok.py	2006-10-16 12:23:57 UTC (rev 70685)
@@ -115,6 +115,11 @@
                                 % (factory, template_name, factory_name))
 
         if template:
+            if getattr(factory, 'render', None):
+                raise GrokError("Multiple possible ways to render view %r. "
+                                "It has both a 'render' method as well as "
+                                "an associated template." % factory)
+
             templates.markAssociated(template_name)
             factory.template = template
         else:

Added: grok/trunk/src/grok/tests/view/eithertemplateorrender.py
===================================================================
--- grok/trunk/src/grok/tests/view/eithertemplateorrender.py	2006-10-16 12:03:59 UTC (rev 70684)
+++ grok/trunk/src/grok/tests/view/eithertemplateorrender.py	2006-10-16 12:23:57 UTC (rev 70685)
@@ -0,0 +1,20 @@
+"""
+Only one, either a template, or render() can be specified:
+
+  >>> grok.grok(__name__)
+  Traceback (most recent call last):
+    ...
+  GrokError: Multiple possible ways to render view
+  <class 'grok.tests.view.eithertemplateorrender.CavePainting'>.
+  It has both a 'render' method as well as an associated template.
+"""
+import grok
+
+class Mammoth(grok.Model):
+    pass
+
+class CavePainting(grok.View):
+    def render(self):
+        pass
+
+cavepainting = grok.PageTemplate("nothing")