70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
from django.core.exceptions import Http404, ObjectDoesNotExist
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from django.core.template import Context, loader
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from django.models.core import sites, contenttypes
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from django.utils import httpwrappers
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def shortcut(request, content_type_id, object_id):
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"Redirect to an object's page based on a content-type ID and an object ID."
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# Look up the object, making sure it's got a get_absolute_url() function.
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try:
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content_type = contenttypes.get_object(pk=content_type_id)
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obj = content_type.get_object_for_this_type(pk=object_id)
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except ObjectDoesNotExist:
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raise Http404, "Content type %s object %s doesn't exist" % (content_type_id, object_id)
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try:
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absurl = obj.get_absolute_url()
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except AttributeError:
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raise Http404, "%s objects don't have get_absolute_url() methods" % content_type.name
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# Try to figure out the object's domain, so we can do a cross-site redirect
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# if necessary.
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# If the object actually defines a domain, we're done.
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if absurl.startswith('http://'):
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return httpwrappers.HttpResponseRedirect(absurl)
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object_domain = None
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# Next, look for an many-to-many relationship to sites
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if hasattr(obj, 'get_site_list'):
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site_list = obj.get_site_list()
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if site_list:
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object_domain = site_list[0].domain
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# Next, look for a many-to-one relationship to sites
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elif hasattr(obj, 'get_site'):
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try:
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object_domain = obj.get_site().domain
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except sites.SiteDoesNotExist:
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pass
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# Then, fall back to the current site (if possible)
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else:
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try:
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object_domain = sites.get_current().domain
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except sites.SiteDoesNotExist:
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# Finally, give up and use a URL without the domain name
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return httpwrappers.HttpResponseRedirect(obj.get_absolute_url())
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return httpwrappers.HttpResponseRedirect('http://%s%s' % (object_domain, obj.get_absolute_url()))
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def page_not_found(request):
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"""
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Default 404 handler, which looks for the requested URL in the redirects
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table, redirects if found, and displays 404 page if not redirected.
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Templates: `404`
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Context: None
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"""
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t = loader.get_template('404')
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return httpwrappers.HttpResponseNotFound(t.render(Context()))
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def server_error(request):
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"""
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500 error handler.
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Templates: `500`
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Context: None
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"""
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t = loader.get_template('500')
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return httpwrappers.HttpResponseServerError(t.render(Context()))
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