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