grok.template() is not properly inherited in subclasses

[Jan Wijbrand Kolman]

The grok.template() directive set on a view component is not inherited by subclasses of this view. This is contrary to e.g. grok.context() and grok.name() that are properly inherited.

Consider:

in module app.py:
-----------------------

import grok

class MyApp(grok.Application, grok.Container):
    pass

class AppIndex(grok.View):
    grok.context(MyApp)
    grok.name('index')
    grok.template('index')

in module more.py:
-------------------------

import grok

import app

class AnotherAppView(app.AppIndex):
    grok.name('foo')

Will result in:

ConfigurationExecutionError: <class 'martian.error.GrokError'>: View <class '...more.AnotherAppView'> has no associated template or 'render' method.

[Philipp von Weitershausen (philikon)]

When you fix this, can you please do so in grokcore.view instead of
the grok trunk? I will release grokcore.view 1.0 soon and will make
the grok trunk use it.

Thanks.

[Jan Wijbrand Kolman (janwijbrand)]

@Philipp - yes, I'm trying to fix this in grokcore.view indeed.

From the original description it might not be clear enough that this happens for views that subclass views *from another module*. Subclasses of views in the same module do not seem to suffer from this problem.

[Jan Wijbrand Kolman (janwijbrand)]

see also:

https://bugs.launchpad.net/grok/+bug/242698

https://bugs.launchpad.net/grok/+bug/225855

[Reinout van Rees (reinout)]

This ought to be easier how that View/CodeView are split.

[Martijn Faassen (faassen)]

We're not going to fix it in 1.0.

[Marc Nieper-Wißkirchen (marc-nieper-wisskirchen)]

Are there plans to fix it in 1.1.x?

Marc

[Christian Klinger (cklinger)]

This example works in new grok 1.2.