edan_f0/oscar/views.py

from django.conf import settings
from django.http import HttpResponse, Http404, HttpResponseRedirect
from django.template import Context, loader, RequestContext
from django.shortcuts import render
from django.core.urlresolvers import reverse
from django.contrib import messages


def class_based_view(class_obj):
    u"""
    Simple function that takes a view class and returns a function
    that instantiates a new instance each time it is called.
    
    This is used urls.py files when using class-based views.
    """
    def _instantiate_view_class(request, *args, **kwargs):
        return class_obj()(request, *args, **kwargs)
    return _instantiate_view_class


class ModelView(object):
    u"""
    A generic view for models which can recieve GET and POST requests
    
    The __init__ method of subclasses should set the default response 
    variable.
    """
    template_file = None
    response = None
        
    def __call__(self, request, *args, **kwargs):
        
        self.request = request
        self.args = args
        self.kwargs = kwargs
        
        method_name = "handle_%s" % request.method.upper()
        model = self.get_model()
        getattr(self, method_name)(model)
        
        return self.response
        
    def handle_GET(self, model):
        u"""Default implementation of model view is to do nothing."""
        pass
    
    def handle_POST(self, model):
        u"""
        Handle a POST request to this resource.
        
        This will forward on request to a method of form "do_%s" where the
        second part needs to be specified as an "action" name within the
        request.
        
        If you don't want to handle POSTs this way, just override this method
        """
        if 'action' in self.request.POST:
            getattr(self, "do_%s" % self.request.POST['action'].lower())(model)
            
    def get_model(self):
        u"""Responsible for loading the model that is being acted on"""
        return None


def home(request):
    u"""Oscar home page"""
    return render(request, 'home.html', locals())