Re: How to mix in class based views from pluggable apps?

Thank You, Roland, this was a good point to start with. I now found an elegant solution:

I added a base DetailView class for this project:

from django.views.generic import DetailView

class PluggableDetailView(DetailView):

    def get_context_data(self, **kwargs):

        context = super(PluggableDetailView, self).get_context_data(**kwargs)
        for plugin in self.__class__.__bases__:
            if hasattr(plugin, 'get_extra_context') and callable(plugin.get_extra_context):
                context.update(plugin.get_extra_context(self, **kwargs))
        return context

    def post(self, *args, **kwargs):
        for plugin in self.__class__.__bases__:
            if hasattr(plugin, 'handle_post_request') and callable(plugin.handle_post_request):
                plugin.handle_post_request(self, *args, **kwargs)

now I can add plug-ins and add two methods 

get_extra_context shall return a dict of extra context data merged together with the default context.

handle_post_request shall extract the plug-in specific post data and update the database or whatever else it must do.

The DetailView of the main app then inherits from PluggableDetailView, additional plug-ins can be mixed in, but no extra code has to be written to extend the context or to handle post requests.

class MainAppDetailView(PluggableDetailView, PluginAMixin, PluginBMixin):
    pass

Does this approach make sense or did I reinvent the wheel?

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