unknown template assumes a distroseries has a product

[Curtis Hovey]

OOPS-1729S273 was caused by a visit to https://blueprints.staging.launchpad.net/debian/squeeze/+specs. This error lookl like it was caused by python in the template. The template should be be making decisions like this. The python logic needs to be moved into the view.

/srv/staging.launchpad.net/staging/launchpad/lib/lp/blueprints/browser/../templates/unknown-specs.pt
   - Line 25, Column 10
   - Expression: <PythonExpr (view.context.product and view.context.product or view.context.distribution)>
   - Names:
      {'args': (),
       'context': <DistroSeries u'squeeze'>,
       'default': <object object at 0x2b2a2d6ac230>,
       'loop': {},
       'nothing': None,
       'options': {},
       'repeat': {},
       'request': <lp.blueprints.publisher.BlueprintsBrowserRequest instance URL=https://blueprints.staging.launchpad.net/debian/squeeze/+specs>,
       'template': <z3c.ptcompat.ViewPageTemplateFile object at 0x6702050>,
       'view': <zope.browserpage.metaconfigure.HasSpecificationsView object at 0xf7e4450>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0xe653310>}
  Module zope.tales.pythonexpr, line 59, in __call__
    return eval(self._code, vars)
   - __traceback_info__: (view.context.product and view.context.product or view.context.distribution)
  Module <string>, line 1, in <module>
ForbiddenAttribute: ('product', <DistroSeries u'squeeze'>)

[Curtis Hovey (sinzui)]

This has also happened on edge: OOPS-1729EC886

[Curtis Hovey (sinzui)]

series.parent returns either a product or distribution and might be helpful in this fix.

[j.c.sackett (jcsackett)]

This was fixed by another branch related to the unknown-specs template, as shown in the linked branch.