allow viewing report 'as such' (without results, but children)

expert/browser/report.pt

@@ -3,7 +3,8 @@
 
 <div metal:define-macro="main">
   <div tal:define="report item/reportInstance;
-                   reportView nocall:item"
+                   reportView nocall:item;
+                   renderer item/resultsRenderer"
        tal:attributes="class string:content-$level;">
       <metal:block use-macro="view/concept_macros/concepttitle" />
       <form method="post" name="report_data">
@@ -20,7 +21,12 @@
                  i18n:attributes="value" />
         </div>
       </form>
-    <div metal:use-macro="item/resultsRenderer" />
+    <tal:list condition="renderer">
+      <div metal:use-macro="renderer" />
+    </tal:list>
+    <tal:list condition="not:renderer">
+      <div metal:use-macro="view/concept_macros/conceptchildren" />
+    </tal:list>
   </div>
 </div>
 

expert/browser/report.py

@@ -45,6 +45,8 @@ class ReportView(ConceptView):
     """ A view for defining (editing) a report.
     """
 
+    resultsRenderer = None  # to be defined by subclass
+
     @Lazy
     def report_macros(self):
         return self.controller.getTemplateMacros('report', report_template)
@@ -57,6 +59,25 @@ class ReportView(ConceptView):
     def dynamicParams(self):
         return self.request.form
 
+    @Lazy
+    def report(self):
+        return self.adapted
+
+    @Lazy
+    def reportInstance(self):
+        instance = component.getAdapter(self.report, IReportInstance,
+                                        name=self.report.reportType)
+        instance.view = self
+        return instance
+
+    @Lazy
+    def queryFields(self):
+        ri = self.reportInstance
+        qf = ri.getAllQueryFields()
+        if ri.userSettings:
+            return [f for f in qf if f in ri.userSettings]
+        return qf
+
 
 class ResultsView(NodeView):
 
@@ -105,13 +126,6 @@ class ResultsView(NodeView):
     def report(self):
         return adapted(self.virtualTargetObject)
 
-    @Lazy
-    def reportInstance(self):
-        instance = component.getAdapter(self.report, IReportInstance,
-                                        name=self.report.reportType)
-        instance.view = self
-        return instance
-
     #@Lazy
     def results(self):
         return self.reportInstance.getResults(self.params)
@@ -221,11 +235,3 @@ class ReportConceptView(ResultsConceptView, ReportView):
     @Lazy
     def macro(self):
         return self.report_macros['main']
-
-    @Lazy
-    def queryFields(self):
-        ri = self.reportInstance
-        qf = ri.getAllQueryFields()
-        if ri.userSettings:
-            return [f for f in qf if f in ri.userSettings]
-        return qf