Add basic 'about' page with some package versions

tailbone/templates/about.mako

@@ -0,0 +1,10 @@
+## -*- coding: utf-8 -*-
+<%inherit file="/base.mako" />
+
+<%def name="title()">About ${project_title}</%def>
+
+<h2>${project_title} ${project_version}</h2>
+
+% for name, version in packages.iteritems():
+    <h3>${name} ${version}</h3>
+% endfor

tailbone/views/common.py

@@ -26,41 +26,81 @@ Various common views
 
 from __future__ import unicode_literals, absolute_import
 
+import rattail
 from rattail.mail import send_email
+from rattail.util import OrderedDict
 
-import formencode
+import formencode as fe
 from pyramid import httpexceptions
-from formencode import validators
 from pyramid_simpleform import Form
 
+import tailbone
 from tailbone import forms
+from tailbone.views import View
 
 
-class Feedback(formencode.Schema):
+class Feedback(fe.Schema):
     """
     Form schema for user feedback.
     """
     allow_extra_fields = True
     user = forms.validators.ValidUser()
-    user_name = validators.NotEmpty()
-    message = validators.NotEmpty()
+    user_name = fe.validators.NotEmpty()
+    message = fe.validators.NotEmpty()
 
 
-def feedback(request):
+class CommonView(View):
+    """
+    Base class for common views; override as needed.
+    """
+    project_title = "Tailbone"
+    project_version = tailbone.__version__
+
+    def about(self):
+        """
+        Generic view to show "about project" info page.
+        """
+        return {
+            'project_title': self.project_title,
+            'project_version': self.project_version,
+            'packages': self.get_packages(),
+        }
+
+    def get_packages(self):
+        """
+        Should return the full set of packages which should be displayed on the
+        'about' page.
+        """
+        return OrderedDict([
+            ('rattail', rattail.__version__),
+            ('Tailbone', tailbone.__version__),
+        ])
+
+    def feedback(self):
         """
         Generic view to present/handle the user feedback form.
         """
-    form = Form(request, schema=Feedback)
+        form = Form(self.request, schema=Feedback)
         if form.validate():
             data = dict(form.data)
             if data['user']:
-            data['user_url'] = request.route_url('users.view', uuid=data['user'].uuid)
-        send_email(request.rattail_config, 'user_feedback', data=data)
-        request.session.flash("Thank you for your feedback.")
+                data['user_url'] = self.request.route_url('users.view', uuid=data['user'].uuid)
+            send_email(self.rattail_config, 'user_feedback', data=data)
+            self.request.session.flash("Thank you for your feedback.")
             return httpexceptions.HTTPFound(location=form.data['referrer'])
         return {'form': forms.FormRenderer(form)}
     
+    @classmethod
+    def defaults(cls, config):
+
+        config.add_route('about', '/about')
+        config.add_view(cls, attr='about', route_name='about', 
+                        renderer='/about.mako')
+
+        config.add_route('feedback', '/feedback')
+        config.add_view(cls, attr='feedback', route_name='feedback',
+                        renderer='/feedback.mako')
+
 
 def includeme(config):
-    config.add_route('feedback', '/feedback')
-    config.add_view(feedback, route_name='feedback', renderer='/feedback.mako')
+    CommonView.defaults(config)