Add model Recipe

apps/food/views.py

@@ -9,7 +9,8 @@ from django_tables2.views import SingleTableView, MultiTableMixin
 from django.core.exceptions import PermissionDenied
 from django.db import transaction
 from django.db.models import Q, Count
-from django.http import HttpResponseRedirect, Http404
+from django.http import HttpResponseRedirect, Http404, JsonResponse
+from django.views.decorators.http import require_GET
 from django.views.generic import DetailView, UpdateView, CreateView
 from django.views.generic.list import ListView
 from django.views.generic.base import RedirectView
@@ -22,12 +23,13 @@ from activity.models import Activity
 from permission.backends import PermissionBackend
 from permission.views import ProtectQuerysetMixin, ProtectedCreateView, LoginRequiredMixin
 
-from .models import Food, BasicFood, TransformedFood, QRCode, Order, Dish, Supplement
+from .models import Food, BasicFood, TransformedFood, QRCode, Order, Dish, Supplement, Recipe
 from .forms import QRCodeForms, BasicFoodForms, TransformedFoodForms, \
     ManageIngredientsForm, ManageIngredientsFormSet, AddIngredientForms, \
     BasicFoodUpdateForms, TransformedFoodUpdateForms, \
-    DishForm, SupplementFormSet, SupplementFormSetHelper, OrderForm
-from .tables import FoodTable, DishTable, OrderTable
+    DishForm, SupplementFormSet, SupplementFormSetHelper, OrderForm, RecipeForm, \
+    RecipeIngredientsForm, RecipeIngredientsFormSet, UseRecipeForm
+from .tables import FoodTable, DishTable, OrderTable, RecipeTable
 from .utils import pretty_duration
 
 
@@ -118,6 +120,10 @@ class FoodListView(ProtectQuerysetMixin, LoginRequiredMixin, MultiTableMixin, Li
 
         context['can_add_meal'] = PermissionBackend.check_perm(self.request, 'food.transformedfood_add')
 
+        context['can_add_recipe'] = PermissionBackend.check_perm(self.request, 'food.recipe_add')
+
+        context['can_view_recipes'] = PermissionBackend.check_perm(self.request, 'food.recipe_view')
+
         context["open_activities"] = Activity.objects.filter(activity_type__name="Perm bouffe", open=True)
 
         return context
@@ -329,7 +335,7 @@ class ManageIngredientsView(LoginRequiredMixin, UpdateView):
             if not (ingredient.polymorphic_ctype.model == 'basicfood' and ingredient.date_type == 'DDM'):
                 self.object.expiry_date = min(self.object.expiry_date, ingredient.expiry_date)
             self.object.allergens.set(self.object.allergens.union(ingredient.allergens.all()))
-            self.object.tracese.set(self.object.traces.union(ingredient.traces.all()))
+            self.object.traces.set(self.object.traces.union(ingredient.traces.all()))
 
         self.object.save(old_ingredients=old_ingredients, old_allergens=old_allergens, old_traces=old_traces)
         return HttpResponseRedirect(self.get_success_url())
@@ -355,6 +361,7 @@ class ManageIngredientsView(LoginRequiredMixin, UpdateView):
                 'qr_number': '' if qr.count() == 0 else qr[0].qr_code_number,
                 'fully_used': 'true' if ingredient.end_of_life else '',
             })
+
         return context
 
     def get_success_url(self, **kwargs):
@@ -874,3 +881,166 @@ class KitchenView(ProtectQuerysetMixin, LoginRequiredMixin, SingleTableView):
             table.columns.hide(field)
 
         return table
+
+
+class RecipeCreateView(ProtectQuerysetMixin, ProtectedCreateView):
+    """
+    Create a recipe
+    """
+    model = Recipe
+    form_class = RecipeForm
+    extra_context = {"title": _("Create a recipe")}
+
+    def get_sample_object(self):
+        return Recipe(name='Sample recipe')
+
+    @transaction.atomic
+    def form_valid(self, form):
+        formset = RecipeIngredientsFormSet(self.request.POST)
+        if formset.is_valid():
+            ingredients = [f.cleaned_data['name'] for f in formset if f.cleaned_data.get('name')]
+            self.object = form.save(commit=False)
+            self.object.ingredients = ingredients
+            self.object.save()
+            return super().form_valid(form)
+        else:
+            return self.form_invalid(form)
+
+    def get_context_data(self, *args, **kwargs):
+        context = super().get_context_data(*args, **kwargs)
+        context['form'] = RecipeIngredientsForm()
+        context['recipe_form'] = self.get_form()
+        if self.request.POST:
+            context['formset'] = RecipeIngredientsFormSet(self.request.POST,)
+        else:
+            context['formset'] = RecipeIngredientsFormSet()
+        return context
+
+    def get_success_url(self):
+        return reverse_lazy('food:recipe_create')
+
+
+class RecipeListView(ProtectQuerysetMixin, LoginRequiredMixin, SingleTableView):
+    """
+    List all recipes
+    """
+    model = Recipe
+    table_class = RecipeTable
+    extra_context = {"title": _('All recipes')}
+
+    def get_context_data(self, *args, **kwargs):
+        context = super().get_context_data(*args, **kwargs)
+
+        context['can_add_recipe'] = PermissionBackend.check_perm(self.request, 'food.recipe_add')
+
+        return context
+
+
+class RecipeDetailView(ProtectQuerysetMixin, LoginRequiredMixin, DetailView):
+    """
+    List all recipes
+    """
+    model = Recipe
+    extra_context = {"title": _('Details of:')}
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context["ingredients"] = self.object.ingredients
+        context["update"] = PermissionBackend.check_perm(self.request, "food.change_recipe")
+
+        return context
+
+
+class RecipeUpdateView(ProtectQuerysetMixin, LoginRequiredMixin, UpdateView):
+    """
+    Create a recipe
+    """
+    model = Recipe
+    form_class = RecipeForm
+    extra_context = {"title": _("Create a recipe")}
+
+    def get_sample_object(self):
+        return Recipe(name='Sample recipe')
+
+    @transaction.atomic
+    def form_valid(self, form):
+        formset = RecipeIngredientsFormSet(self.request.POST)
+        if formset.is_valid():
+            ingredients = [f.cleaned_data['name'] for f in formset if f.cleaned_data.get('name')]
+            self.object = form.save(commit=False)
+            self.object.ingredients = ingredients
+            self.object.save()
+            return super().form_valid(form)
+        else:
+            return self.form_invalid(form)
+
+    def get_context_data(self, *args, **kwargs):
+        context = super().get_context_data(*args, **kwargs)
+        context['form'] = RecipeIngredientsForm()
+        context['recipe_form'] = self.get_form()
+        if self.request.POST:
+            formset = RecipeIngredientsFormSet(self.request.POST,)
+        else:
+            formset = RecipeIngredientsFormSet()
+        ingredients = self.object.ingredients
+        context["ingredients_count"] = len(ingredients)
+        formset.extra += len(ingredients)
+        context["formset"] = formset
+        context["ingredients"] = []
+        for ingredient in ingredients:
+            context["ingredients"].append({"name": ingredient})
+        return context
+
+    def get_success_url(self):
+        return reverse_lazy('food:recipe_detail', kwargs={"pk": self.object.pk})
+
+
+class UseRecipeView(LoginRequiredMixin, UpdateView):
+    """
+    Add ingredients to a TransformedFood using a Recipe
+    """
+    model = TransformedFood
+    fields = '__all__'
+    template_name = 'food/use_recipe_form.html'
+    extra_context = {"title": _("Use a recipe:")}
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+
+        context["form"] = UseRecipeForm()
+
+        return context
+
+
+@require_GET
+def get_ingredients_for_recipe(request):
+    recipe_id = request.GET.get('recipe_id')
+    if not recipe_id:
+        return JsonResponse({'error': 'Missing recipe_id'}, status=400)
+
+    try:
+        recipe = Recipe.objects.get(pk=recipe_id)
+    except Recipe.DoesNotExist:
+        return JsonResponse({'error': 'Recipe not found'}, status=404)
+
+    # 🔧 Supporte les deux cas : ManyToMany ou simple liste
+    ingredients_field = recipe.ingredients
+
+    if hasattr(ingredients_field, "values_list"):
+        # Cas ManyToManyField
+        ingredient_names = list(ingredients_field.values_list('name', flat=True))
+    elif isinstance(ingredients_field, (list, tuple)):
+        # Cas liste directe
+        ingredient_names = ingredients_field
+    else:
+        return JsonResponse({'error': 'Unsupported ingredients type'}, status=500)
+
+    # Union des Foods dont le nom commence par un nom d’ingrédient
+    query = Q()
+    for name in ingredient_names:
+        query |= Q(name__istartswith=name)
+
+    qs = Food.objects.filter(query).distinct()
+
+    data = [{'id': f.id, 'name': f.name, 'qr_code_numbers': ", ".join(str(q.qr_code_number) for q in f.QR_code.all())} for f in qs]
+    return JsonResponse({'ingredients': data})