pathway_musings.py

from django.shortcuts import render

# urls.py
pathway_urls = []
for pathway in Pathway.list():
    pathway_urls += [
        url(pathway.get_template_url(), PathwayTemplateView],
    ]

# pathway

class Pathway(object):

    def __init__(self, request):
        self.request = request

    @classmethod
    def get_url(k):
        return k.url

    @classmethod
    def get_template_url(k):
        return k.url + "/template.html"

    def get_template_name(self, *args, **kwargs):
        pass

    def get_template_context_data(*a **k):
        pass




# pathway.views

class PathwayTemplateView():
    def dispatch(self, *args, **kwargs):
        self.pathway = Pathway.get(kwargs['slug'])(request)
        super()

    def get_template_name(self, *a, **k):
        return self.pathway.get_template_name()

    def get_context_data(self, *args, **kwargs):
        return self.pathway.get_template_context_data()




# app.pathways
class SomeDiagnsisChange(Pathway):
    slug          = "diagnosis-change"
    url           = "/pathway/<slug>/<episode_id>/diagnosis/"
    template_name = "/some_template/blahblah.html"

    def get_initial_data(self, *a, **k):
        return Diagnosis.objects.filter(episode_id=self.pk)

    def save_data(self, *a, **k):
        """
        Nothing is deleted...
        """
        for diagnosis in some_data:
            diagnosis["episode_id"] = self.pk
        Diagnosis.bulk_update_from_dicts(some_data)