split website and cms; work on sections

cms/routes.py

@@ -0,0 +1,162 @@
+from django.conf.urls import url
+from django.utils import timezone
+
+from website.models import *
+from website.views import *
+
+class Router:
+    registry = []
+
+    def register (self, route):
+        if not route in self.registry:
+            self.registry.append(route)
+
+    def register_set (self, view_set):
+        for route in view_set.routes:
+            self.register(route)
+
+    def unregister (self, route):
+        self.registry.remove(route)
+
+    def get_urlpatterns (self):
+        return [ route.get_url() for route in self.registry ]
+
+
+class Route:
+    """
+    Base class for routing. Given a model, we generate url specific for each
+    route type. The generated url takes this form:
+        base_name + '/' + route_name + '/' + '/'.join(route_url_args)
+
+    Where base_name by default is the given model's verbose_name (uses plural if
+    Route is for a list).
+
+    The given view is considered as a django class view, and has view_
+    """
+    model = None        # model routed here
+    view = None         # view class to call
+    view_kwargs  = None   # arguments passed to view at creation of the urls
+
+    class Meta:
+        name = None         # route name
+        is_list = False     # route is for a list
+        url_args = []       # arguments passed from the url [ (name : regex),... ]
+
+    def __init__ (self, model, view, view_kwargs = None):
+        self.model = model
+        self.view = view
+        self.view_kwargs = view_kwargs
+        self.embed = False
+
+        _meta = {}
+        _meta.update(Route.Meta.__dict__)
+        _meta.update(self.Meta.__dict__)
+        self._meta = _meta
+
+        self.base_name = model._meta.verbose_name_plural.lower()
+
+    def get_queryset (self, request, **kwargs):
+        """
+        Called by the view to get the queryset when it is needed
+        """
+        pass
+
+    def get (self, request, **kwargs):
+        """
+        Called by the view to get the object when it is needed
+        """
+        pass
+
+    def get_url (self):
+        pattern = '^{}/{}'.format(self.base_name, self.Meta.name)
+        if self._meta['url_args']:
+            url_args = '/'.join([
+                '(?P<{}>{}){}'.format(
+                    arg, expr,
+                    (optional and optional[0] and '?') or ''
+                )
+                for arg, expr, *optional in self._meta['url_args']
+            ])
+            pattern += '/' + url_args
+        pattern += '/?$'
+
+        kwargs = {
+            'route': self,
+        }
+        if self.view_kwargs:
+            kwargs.update(self.view_kwargs)
+
+        return url(pattern, self.view, kwargs = kwargs,
+                   name = self.base_name + '_' + self.Meta.name)
+
+
+class DetailRoute (Route):
+    class Meta:
+        name = 'detail'
+        is_list = False
+        url_args = [
+            ('pk', '[0-9]+'),
+            ('slug', '(\w|-|_)+', True),
+        ]
+
+    def get (self, request, **kwargs):
+        return self.model.objects.get(pk = int(kwargs['pk']))
+
+
+class AllRoute (Route):
+    class Meta:
+        name = 'all'
+        is_list = True
+
+    def get_queryset (self, request, **kwargs):
+        return self.model.objects.all()
+
+
+class ThreadRoute (Route):
+    class Meta:
+        name = 'thread'
+        is_list = True
+        url_args = [
+            ('pk', '[0-9]+'),
+        ]
+
+    def get_queryset (self, request, **kwargs):
+        return self.model.objects.filter(thread__pk = int(kwargs['pk']))
+
+
+class DateRoute (Route):
+    class Meta:
+        name = 'date'
+        is_list = True
+        url_args = [
+            ('year', '[0-9]{4}'),
+            ('month', '[0-9]{2}'),
+            ('day', '[0-9]{1,2}'),
+        ]
+
+    def get_queryset (self, request, **kwargs):
+        return self.model.objects.filter(
+            date__year = int(kwargs['year']),
+            date__month = int(kwargs['month']),
+            date__day = int(kwargs['day']),
+        )
+
+
+class SearchRoute (Route):
+    class Meta:
+        name = 'search'
+        is_list = True
+
+    def get_queryset (self, request, **kwargs):
+        q = request.GET.get('q') or ''
+        qs = self.model.objects
+        for search_field in model.search_fields or []:
+            r = self.model.objects.filter(**{ search_field + '__icontains': q })
+            if qs: qs = qs | r
+            else: qs = r
+
+        qs.distinct()
+        return qs
+
+
+