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#-*- coding: utf-8 -*- 

from django.contrib.auth.models import AnonymousUser 

from shop.models.ordermodel import Order 

 

 

def get_orders_from_request(request): 

    """ 

    Returns all the Orders created from the provided request. 

    """ 

    orders = None 

    if request.user and not isinstance(request.user, AnonymousUser): 

        # There is a logged in user 

        orders = Order.objects.filter(user=request.user) 

        orders = orders.order_by('-created') 

    else: 

        session = getattr(request, 'session', None) 

        if session is not None: 

            # There is a session 

            order_id = session.get('order_id') 

            if order_id: 

                orders = Order.objects.filter(pk=order_id) 

    return orders 

 

 

def get_order_from_request(request): 

    """ 

    Returns the currently processing Order from a request (switches between 

    user or session mode) if any. 

    """ 

    orders = get_orders_from_request(request) 

    if orders and len(orders) >= 1: 

        order = orders[0] 

    else: 

        order = None 

    return order 

 

 

def add_order_to_request(request, order): 

    """ 

    Checks that the order is linked to the current user or adds the order to 

    the session should there be no logged in user. 

    """ 

    if request.user and not isinstance(request.user, AnonymousUser): 

        # We should check that the current user is indeed the request's user. 

        if order.user != request.user: 

            order.user = request.user 

            order.save() 

    else: 

        # Add the order_id to the session There has to be a session. Otherwise 

        # it's fine to get an AttributeError 

        request.session['order_id'] = order.pk