mirror of
https://github.com/ae-utbm/sith.git
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249 lines
9.6 KiB
Python
249 lines
9.6 KiB
Python
from django.shortcuts import render
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from django.views.generic import ListView, DetailView, RedirectView
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from django.views.generic.edit import UpdateView, CreateView, DeleteView, ProcessFormView, FormMixin
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from django.forms.models import modelform_factory
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from django.forms import CheckboxSelectMultiple
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from django.core.urlresolvers import reverse_lazy
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from django.contrib.auth.forms import AuthenticationForm
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from django.http import HttpResponseRedirect
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from django.utils import timezone
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from django import forms
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from core.views import CanViewMixin, CanEditMixin, CanEditPropMixin
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from subscription.models import Subscriber
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from accounting.models import Customer, Product
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from counter.models import Counter
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class GetUserForm(forms.Form):
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"""
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The Form class aims at providing a valid user_id field in its cleaned data, in order to pass it to some view,
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reverse function, or any other use.
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The Form implements a nice JS widget allowing the user to type a customer account id, or search the database with
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some nickname, first name, or last name (TODO)
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"""
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code = forms.CharField(label="Code", max_length=64, required=False)
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id = forms.IntegerField(label="ID", required=False)
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# TODO: add a nice JS widget to search for users
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def clean(self):
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cleaned_data = super(GetUserForm, self).clean()
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user = None
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if cleaned_data['code'] != "":
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user = Customer.objects.filter(account_id=cleaned_data['code']).first()
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elif cleaned_data['id'] is not None:
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user = Customer.objects.filter(user=cleaned_data['id']).first()
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if user is None:
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raise forms.ValidationError("User not found")
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cleaned_data['user_id'] = user.user.id
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return cleaned_data
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class CounterMain(DetailView, ProcessFormView, FormMixin):
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"""
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The public (barman) view
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"""
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model = Counter
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template_name = 'counter/counter_main.jinja'
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pk_url_kwarg = "counter_id"
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form_class = GetUserForm # Form to enter a client code and get the corresponding user id
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def get_context_data(self, **kwargs):
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"""
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We handle here the login form for the barman
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Also handle the timeout
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"""
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if self.request.method == 'POST':
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self.object = self.get_object()
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kwargs = super(CounterMain, self).get_context_data(**kwargs)
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# TODO: make some checks on the counter type, in order not to make the AuthenticationForm if there is no need to
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kwargs['login_form'] = AuthenticationForm()
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kwargs['form'] = self.get_form()
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kwargs['barmen'] = Counter.get_barmen_list(self.object.id)
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return kwargs
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def form_valid(self, form):
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"""
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We handle here the redirection, passing the user id of the asked customer
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"""
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self.kwargs['user_id'] = form.cleaned_data['user_id']
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return super(CounterMain, self).form_valid(form)
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def get_success_url(self):
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return reverse_lazy('counter:click', args=self.args, kwargs=self.kwargs)
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class BasketForm(forms.Form):
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def __init__(self, *args, **kwargs):
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print(kwargs)
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super(BasketForm, self).__init__(*args, **kwargs)
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for p in kwargs['initial']['counter'].products.all(): # TODO: filter on the allowed products for this counter
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self.fields[p.id] = forms.IntegerField(label=p.name, required=False)
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# TODO ^: add some extra infos for the products (price, or ID to load infos dynamically)
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def clean(self):
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cleaned_data = super(BasketForm, self).clean()
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total = 0
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for pid,q in cleaned_data.items():
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p = Product.objects.filter(id=pid).first()
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total += (q or 0)*p.selling_price
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print(total)
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class CounterClick(DetailView):
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"""
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The click view
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This is a detail view not to have to worry about loading the counter
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Everything is made by hand in the post method
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"""
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model = Counter
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template_name = 'counter/counter_click.jinja'
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pk_url_kwarg = "counter_id"
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def get(self, request, *args, **kwargs):
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"""Simple get view"""
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self.customer = Customer.objects.filter(user__id=self.kwargs['user_id']).first()
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ret = super(CounterClick, self).get(request, *args, **kwargs)
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if len(Counter.get_barmen_list(self.object.id)) < 1: # Check that at least one barman is logged in
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return self.cancel(request) # Otherwise, go to main view
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if 'basket' not in request.session.keys(): # Init the basket session entry
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request.session['basket'] = {}
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return ret
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def post(self, request, *args, **kwargs):
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""" Handle the many possibilities of the post request """
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self.object = self.get_object()
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self.customer = Customer.objects.filter(user__id=self.kwargs['user_id']).first()
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if len(Counter.get_barmen_list(self.object.id)) < 1: # Check that at least one barman is logged in
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return self.cancel(request)
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if 'basket' not in request.session.keys():
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request.session['basket'] = {}
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if 'add_product' in request.POST['action']:
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self.add_product(request)
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elif 'del_product' in request.POST['action']:
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self.del_product(request)
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elif 'cancel' in request.POST['action']:
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return self.cancel(request)
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elif 'finish' in request.POST['action']:
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return self.finish(request)
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context = self.get_context_data(object=self.object)
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return self.render_to_response(context)
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def add_product(self, request):
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""" Add a product to the basket """
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pid = str(request.POST['product_id'])
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if pid in request.session['basket']:
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request.session['basket'][pid] += 1
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else:
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request.session['basket'][pid] = 1
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request.session.modified = True
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def del_product(self, request):
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""" Delete a product from the basket """
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pid = str(request.POST['product_id'])
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if pid in request.session['basket']:
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request.session['basket'][pid] -= 1
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if request.session['basket'][pid] <= 0:
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del request.session['basket'][pid]
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else:
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request.session['basket'][pid] = 0
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request.session.modified = True
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def finish(self, request):
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""" Finish the click session, and validate the basket """
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# TODO: handle the basket
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kwargs = {'counter_id': self.object.id}
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del request.session['basket']
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return HttpResponseRedirect(reverse_lazy('counter:details', args=self.args, kwargs=kwargs))
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def cancel(self, request):
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""" Cancel the click session """
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kwargs = {'counter_id': self.object.id}
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request.session.pop('basket', None)
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return HttpResponseRedirect(reverse_lazy('counter:details', args=self.args, kwargs=kwargs))
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def get_context_data(self, **kwargs):
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""" Add customer to the context """
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kwargs = super(CounterClick, self).get_context_data(**kwargs)
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kwargs['customer'] = self.customer
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return kwargs
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class CounterLogin(RedirectView):
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"""
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Handle the login of a barman
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Logged barmen are stored in the class-wide variable 'barmen_session', in the Counter model
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"""
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permanent = False
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def post(self, request, *args, **kwargs):
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"""
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Register the logged user as barman for this counter
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"""
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self.counter_id = kwargs['counter_id']
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form = AuthenticationForm(request, data=request.POST)
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if form.is_valid():
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user = Subscriber.objects.filter(username=form.cleaned_data['username']).first()
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if self.counter_id not in Counter.barmen_session.keys():
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Counter.barmen_session[self.counter_id] = {'users': {user.id}, 'time': timezone.now()}
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else:
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Counter.barmen_session[self.counter_id]['users'].add(user.id)
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else:
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print("Error logging the barman") # TODO handle that nicely
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return super(CounterLogin, self).post(request, *args, **kwargs)
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def get_redirect_url(self, *args, **kwargs):
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return reverse_lazy('counter:details', args=args, kwargs=kwargs)
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class CounterLogout(RedirectView):
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permanent = False
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def post(self, request, *args, **kwargs):
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"""
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Unregister the user from the barman
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"""
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self.counter_id = kwargs['counter_id']
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Counter.barmen_session[str(self.counter_id)]['users'].remove(int(request.POST['user_id']))
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return super(CounterLogout, self).post(request, *args, **kwargs)
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def get_redirect_url(self, *args, **kwargs):
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return reverse_lazy('counter:details', args=args, kwargs=kwargs)
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## Counter admin views
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class CounterListView(CanViewMixin, ListView):
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"""
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A list view for the admins
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"""
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model = Counter
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template_name = 'counter/counter_list.jinja'
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class CounterEditView(CanEditMixin, UpdateView):
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"""
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Edit a counter's main informations (for the counter's admin)
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"""
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model = Counter
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form_class = modelform_factory(Counter, fields=['name', 'club', 'type', 'products'],
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widgets={'products':CheckboxSelectMultiple})
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pk_url_kwarg = "counter_id"
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template_name = 'counter/counter_edit.jinja'
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class CounterCreateView(CanEditMixin, CreateView):
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"""
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Create a counter (for the admins)
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"""
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model = Counter
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form_class = modelform_factory(Counter, fields=['name', 'club', 'type', 'products'],
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widgets={'products':CheckboxSelectMultiple})
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template_name = 'counter/counter_edit.jinja'
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class CounterDeleteView(CanEditMixin, DeleteView):
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"""
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Delete a counter (for the admins)
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"""
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model = Counter
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pk_url_kwarg = "counter_id"
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template_name = 'core/delete_confirm.jinja'
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success_url = reverse_lazy('counter:admin_list')
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