add pages to manage returnable products

counter/views/admin.py

@@ -15,19 +15,28 @@
 from datetime import timedelta
 
 from django.conf import settings
+from django.contrib.auth.mixins import PermissionRequiredMixin
 from django.core.exceptions import PermissionDenied
 from django.forms import CheckboxSelectMultiple
 from django.forms.models import modelform_factory
 from django.shortcuts import get_object_or_404
 from django.urls import reverse, reverse_lazy
 from django.utils import timezone
+from django.utils.translation import gettext as _
 from django.views.generic import DetailView, ListView, TemplateView
 from django.views.generic.edit import CreateView, DeleteView, UpdateView
 
 from core.auth.mixins import CanEditMixin, CanViewMixin
 from core.utils import get_semester_code, get_start_of_semester
-from counter.forms import CounterEditForm, ProductEditForm
-from counter.models import Counter, Product, ProductType, Refilling, Selling
+from counter.forms import CounterEditForm, ProductEditForm, ReturnableProductForm
+from counter.models import (
+    Counter,
+    Product,
+    ProductType,
+    Refilling,
+    ReturnableProduct,
+    Selling,
+)
 from counter.utils import is_logged_in_counter
 from counter.views.mixins import CounterAdminMixin, CounterAdminTabsMixin
 
@@ -146,6 +155,69 @@ class ProductEditView(CounterAdminTabsMixin, CounterAdminMixin, UpdateView):
     current_tab = "products"
 
 
+class ReturnableProductListView(
+    CounterAdminTabsMixin, PermissionRequiredMixin, ListView
+):
+    model = ReturnableProduct
+    queryset = model.objects.select_related("product", "returned_product")
+    template_name = "counter/returnable_list.jinja"
+    current_tab = "returnable_products"
+    permission_required = "counter.view_returnableproduct"
+
+
+class ReturnableProductCreateView(
+    CounterAdminTabsMixin, PermissionRequiredMixin, CreateView
+):
+    form_class = ReturnableProductForm
+    template_name = "core/create.jinja"
+    current_tab = "returnable_products"
+    success_url = reverse_lazy("counter:returnable_list")
+    permission_required = "counter.add_returnableproduct"
+
+
+class ReturnableProductUpdateView(
+    CounterAdminTabsMixin, PermissionRequiredMixin, UpdateView
+):
+    model = ReturnableProduct
+    pk_url_kwarg = "returnable_id"
+    queryset = model.objects.select_related("product", "returned_product")
+    form_class = ReturnableProductForm
+    template_name = "core/edit.jinja"
+    current_tab = "returnable_products"
+    success_url = reverse_lazy("counter:returnable_list")
+    permission_required = "counter.change_returnableproduct"
+
+    def get_context_data(self, **kwargs):
+        return super().get_context_data(**kwargs) | {
+            "object_name": _("returnable product : %(returnable)s -> %(returned)s")
+            % {
+                "returnable": self.object.product.name,
+                "returned": self.object.returned_product.name,
+            }
+        }
+
+
+class ReturnableProductDeleteView(
+    CounterAdminTabsMixin, PermissionRequiredMixin, DeleteView
+):
+    model = ReturnableProduct
+    pk_url_kwarg = "returnable_id"
+    queryset = model.objects.select_related("product", "returned_product")
+    template_name = "core/delete_confirm.jinja"
+    current_tab = "returnable_products"
+    success_url = reverse_lazy("counter:returnable_list")
+    permission_required = "counter.delete_returnableproduct"
+
+    def get_context_data(self, **kwargs):
+        return super().get_context_data(**kwargs) | {
+            "object_name": _("returnable product : %(returnable)s -> %(returned)s")
+            % {
+                "returnable": self.object.product.name,
+                "returned": self.object.returned_product.name,
+            }
+        }
+
+
 class RefillingDeleteView(DeleteView):
     """Delete a refilling (for the admins)."""
 

counter/views/mixins.py

@@ -98,6 +98,11 @@ class CounterAdminTabsMixin(TabedViewMixin):
             "slug": "product_types",
             "name": _("Product types"),
         },
+        {
+            "url": reverse_lazy("counter:returnable_list"),
+            "slug": "returnable_products",
+            "name": _("Returnable products"),
+        },
         {
             "url": reverse_lazy("counter:cash_summary_list"),
             "slug": "cash_summary",