Rewrite food apps, new feature some changes to model

apps/food/admin.py

@@ -0,0 +1,59 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from django.contrib import admin
+from polymorphic.admin import PolymorphicChildModelAdmin, PolymorphicParentModelAdmin
+from note_kfet.admin import admin_site
+
+from .models import Allergen, Food, BasicFood, TransformedFood, QRCode
+
+
+@admin.register(Allergen, site=admin_site)
+class AllergenAdmin(admin.ModelAdmin):
+    """
+    Admin customisation for Allergen
+    """
+    ordering = ['name']
+
+
+@admin.register(Food, site=admin_site)
+class FoodAdmin(PolymorphicParentModelAdmin):
+    """
+    Admin customisation for Food
+    """
+    child_models = (Food, BasicFood, TransformedFood)
+    list_display = ('name', 'expiry_date', 'owner', 'is_ready')
+    list_filter = ('is_ready', 'end_of_life')
+    search_fields = ['name']
+    ordering = ['expiry_date', 'name']
+
+
+@admin.register(BasicFood, site=admin_site)
+class BasicFood(PolymorphicChildModelAdmin):
+    """
+    Admin customisation for BasicFood
+    """
+    list_display = ('name', 'expiry_date', 'date_type', 'owner', 'is_ready')
+    list_filter = ('is_ready', 'date_type', 'end_of_life')
+    search_fields = ['name']
+    ordering = ['expiry_date', 'name']
+
+
+@admin.register(TransformedFood, site=admin_site)
+class TransformedFood(PolymorphicChildModelAdmin):
+    """
+    Admin customisation for TransformedFood
+    """
+    list_display = ('name', 'expiry_date', 'shelf_life', 'owner', 'is_ready')
+    list_filter = ('is_ready', 'end_of_life', 'shelf_life')
+    search_fields = ['name']
+    ordering = ['expiry_date', 'name']
+
+
+@admin.register(QRCode, site=admin_site)
+class QRCodeAdmin(admin.ModelAdmin):
+    """
+    Admin customisation for QRCode
+    """
+    list_diplay = ('qr_code_number', 'food_container')
+    search_fields = ['food_container__name']

apps/food/api/serializers.py

@@ -0,0 +1,46 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from rest_framework import serializers
+
+from ..models import Allergen, BasicFood, TransformedFood, QRCode
+
+
+class AllergenSerializer(serializers.ModelSerializer):
+    """
+    REST API Serializer for Allergen.
+    The djangorestframework plugin will analyse the model `Allergen` and parse all fields in the API.
+    """
+    class Meta:
+        model = Allergen
+        fields = '__all__'
+
+
+class BasicFoodSerializer(serializers.ModelSerializer):
+    """
+    REST API Serializer for BasicFood.
+    The djangorestframework plugin will analyse the model `BasicFood` and parse all fields in the API.
+    """
+    class Meta:
+        model = BasicFood
+        fields = '__all__'
+
+
+class TransformedFoodSerializer(serializers.ModelSerializer):
+    """
+    REST API Serializer for TransformedFood.
+    The djangorestframework plugin will analyse the model `TransformedFood` and parse all fields in the API.
+    """
+    class Meta:
+        model = TransformedFood
+        fields = '__all__'
+
+
+class QRCodeSerializer(serializers.ModelSerializer):
+    """
+    REST API Serializer for QRCode.
+    The djangorestframework plugin will analyse the model `QRCode` and parse all fields in the API.
+    """
+    class Meta:
+        model = QRCode
+        fields = '__all__'

apps/food/api/urls.py

@@ -0,0 +1,14 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from .views import AllergenViewSet, BasicFoodViewSet, TransformedFoodViewSet, QRCodeViewSet
+
+
+def register_food_urls(router, path):
+    """
+    Configure router for Food REST API.
+    """
+    router.register(path + '/allergen', AllergenViewSet)
+    router.register(path + '/basicfood', BasicFoodViewSet)
+    router.register(path + '/transformedfood', TransformedFoodViewSet)
+    router.register(path + '/qrcode', QRCodeViewSet)

apps/food/api/views.py

@@ -0,0 +1,61 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from api.viewsets import ReadProtectedModelViewSet
+from django_filters.rest_framework import DjangoFilterBackend
+from rest_framework.filters import SearchFilter
+
+from .serializers import AllergenSerializer, BasicFoodSerializer, TransformedFoodSerializer, QRCodeSerializer
+from ..models import Allergen, BasicFood, TransformedFood, QRCode
+
+
+class AllergenViewSet(ReadProtectedModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `Allergen` objects, serialize it to JSON with the given serializer,
+    then render it on /api/food/allergen/
+    """
+    queryset = Allergen.objects.order_by('id')
+    serializer_class = AllergenSerializer
+    filter_backends = [DjangoFilterBackend, SearchFilter]
+    filterset_fields = ['name', ]
+    search_fields = ['$name', ]
+
+
+class BasicFoodViewSet(ReadProtectedModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `BasicFood` objects, serialize it to JSON with the given serializer,
+    then render it on /api/food/basicfood/
+    """
+    queryset = BasicFood.objects.order_by('id')
+    serializer_class = BasicFoodSerializer
+    filter_backends = [DjangoFilterBackend, SearchFilter]
+    filterset_fields = ['name', ]
+    search_fields = ['$name', ]
+
+
+class TransformedFoodViewSet(ReadProtectedModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `TransformedFood` objects, serialize it to JSON with the given serializer,
+    then render it on /api/food/transformedfood/
+    """
+    queryset = TransformedFood.objects.order_by('id')
+    serializer_class = TransformedFoodSerializer
+    filter_backends = [DjangoFilterBackend, SearchFilter]
+    filterset_fields = ['name', ]
+    search_fields = ['$name', ]
+
+
+class QRCodeViewSet(ReadProtectedModelViewSet):
+    """
+    REST API View set.
+    The djangorestframework plugin will get all `QRCode` objects, serialize it to JSON with the given serializer,
+    then render it on /api/food/qrcode/
+    """
+    queryset = QRCode.objects.order_by('id')
+    serializer_class = QRCodeSerializer
+    filter_backends = [DjangoFilterBackend, SearchFilter]
+    filterset_fields = ['qr_code_number', ]
+    search_fields = ['$qr_code_number', ]

apps/food/forms.py

@@ -0,0 +1,153 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from random import shuffle
+
+from bootstrap_datepicker_plus.widgets import DateTimePickerInput
+from django import forms
+from django.forms.widgets import NumberInput
+from django.utils.translation import gettext_lazy as _
+from member.models import Club
+from note_kfet.inputs import Autocomplete
+from note_kfet.middlewares import get_current_request
+from permission.backends import PermissionBackend
+
+from .models import BasicFood, TransformedFood, QRCode
+
+
+class QRCodeForms(forms.ModelForm):
+    """
+    Form for create QRCode for container
+    """
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields['food_container'].queryset = self.fields['food_container'].queryset.filter(
+            is_ready=False,
+            end_of_life__isnull=True,
+            polymorphic_ctype__model='transformedfood',
+        ).filter(PermissionBackend.filter_queryset(
+            get_current_request(),
+            TransformedFood,
+            "view",
+        ))
+
+    class Meta:
+        model = QRCode
+        fields = ('food_container',)
+
+
+class BasicFoodForms(forms.ModelForm):
+    """
+    Form for add basicfood
+    """
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields['name'].widget.attrs.update({"autofocus": "autofocus"})
+        self.fields['name'].required = True
+        self.fields['owner'].required = True
+
+        # Some example
+        self.fields['name'].widget.attrs.update({"placeholder": _("Pasta METRO 5kg")})
+        clubs = list(Club.objects.filter(PermissionBackend.filter_queryset(get_current_request(), Club, "change")).all())
+        shuffle(clubs)
+        self.fields['owner'].widget.attrs["placeholder"] = ", ".join(club.name for club in clubs[:4]) + ", ..."
+        self.fields['order'].widget.attrs["placeholder"] = _("Specific order given to GCKs")
+
+    class Meta:
+        model = BasicFood
+        fields = ('name', 'owner', 'date_type', 'expiry_date', 'allergens', 'order',)
+        widgets = {
+            "owner": Autocomplete(
+                model=Club,
+                attrs={"api_url": "/api/members/club/"},
+            ),
+            "expiry_date": DateTimePickerInput(),
+        }
+
+
+class TransformedFoodForms(forms.ModelForm):
+    """
+    Form for add transformedfood
+    """
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields['name'].required = True
+        self.fields['owner'].required = True
+
+        # Some example
+        self.fields['name'].widget.attrs.update({"placeholder": _("Lasagna")})
+        clubs = list(Club.objects.filter(PermissionBackend.filter_queryset(get_current_request(), Club, "change")).all())
+        shuffle(clubs)
+        self.fields['owner'].widget.attrs["placeholder"] = ", ".join(club.name for club in clubs[:4]) + ", ..."
+        self.fields['order'].widget.attrs["placeholder"] = _("Specific order given to GCKs")
+
+    class Meta:
+        model = TransformedFood
+        fields = ('name', 'owner', 'order',)
+        widgets = {
+            "owner": Autocomplete(
+                model=Club,
+                attrs={"api_url": "/api/members/club/"},
+            ),
+        }
+
+
+class BasicFoodUpdateForms(forms.ModelForm):
+    """
+    Form for update basicfood object
+    """
+    class Meta:
+        model = BasicFood
+        fields = ('name', 'owner', 'date_type', 'expiry_date', 'end_of_life', 'is_ready', 'order', 'allergens')
+        widgets = {
+            "owner": Autocomplete(
+                model=Club,
+                attrs={"api_url": "/api/members/club/"},
+            ),
+            "expiry_date": DateTimePickerInput(),
+        }
+
+
+class TransformedFoodUpdateForms(forms.ModelForm):
+    """
+    Form for update transformedfood object
+    """
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields['shelf_life'].label = _('Shelf life (in hours)')
+
+    class Meta:
+        model = TransformedFood
+        fields = ('name', 'owner', 'end_of_life', 'is_ready', 'order', 'shelf_life')
+        widgets = {
+            "owner": Autocomplete(
+                model=Club,
+                attrs={"api_url": "/api/members/club/"},
+            ),
+            "expiry_date": DateTimePickerInput(),
+            "shelf_life": NumberInput(),
+        }
+
+
+class AddIngredientForms(forms.ModelForm):
+    """
+    Form for add an ingredient
+    """
+    fully_used = forms.BooleanField()
+    fully_used.initial = True
+    fully_used.required = False
+    fully_used.label = _("Fully used")
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        # TODO find a better way to get pk (be not url scheme dependant)
+        pk = get_current_request().path.split('/')[-1]
+        self.fields['ingredients'].queryset = self.fields['ingredients'].queryset.filter(
+            polymorphic_ctype__model="transformedfood",
+            is_ready=False,
+            end_of_life='',
+        ).filter(PermissionBackend.filter_queryset(get_current_request(), TransformedFood, "change")).exclude(pk=pk)
+
+    class Meta:
+        model = TransformedFood
+        fields = ('ingredients',)

apps/food/migrations/0001_initial.py

@@ -0,0 +1,199 @@
+# Generated by Django 4.2.20 on 2025-04-17 21:43
+
+import datetime
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+    initial = True
+
+    dependencies = [
+        ("contenttypes", "0002_remove_content_type_name"),
+        ("member", "0013_auto_20240801_1436"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Allergen",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=255, verbose_name="name")),
+            ],
+            options={
+                "verbose_name": "Allergen",
+                "verbose_name_plural": "Allergens",
+            },
+        ),
+        migrations.CreateModel(
+            name="Food",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=255, verbose_name="name")),
+                ("expiry_date", models.DateTimeField(verbose_name="expiry date")),
+                (
+                    "end_of_life",
+                    models.CharField(max_length=255, verbose_name="end of life"),
+                ),
+                (
+                    "is_ready",
+                    models.BooleanField(max_length=255, verbose_name="is ready"),
+                ),
+                ("order", models.CharField(max_length=255, verbose_name="order")),
+                (
+                    "allergens",
+                    models.ManyToManyField(
+                        blank=True, to="food.allergen", verbose_name="allergens"
+                    ),
+                ),
+                (
+                    "owner",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.PROTECT,
+                        related_name="+",
+                        to="member.club",
+                        verbose_name="owner",
+                    ),
+                ),
+                (
+                    "polymorphic_ctype",
+                    models.ForeignKey(
+                        editable=False,
+                        null=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="polymorphic_%(app_label)s.%(class)s_set+",
+                        to="contenttypes.contenttype",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Food",
+                "verbose_name_plural": "Foods",
+            },
+        ),
+        migrations.CreateModel(
+            name="BasicFood",
+            fields=[
+                (
+                    "food_ptr",
+                    models.OneToOneField(
+                        auto_created=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        parent_link=True,
+                        primary_key=True,
+                        serialize=False,
+                        to="food.food",
+                    ),
+                ),
+                (
+                    "arrival_date",
+                    models.DateTimeField(
+                        default=django.utils.timezone.now, verbose_name="arrival date"
+                    ),
+                ),
+                (
+                    "date_type",
+                    models.CharField(
+                        choices=[("DLC", "DLC"), ("DDM", "DDM")], max_length=255
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Basic food",
+                "verbose_name_plural": "Basic foods",
+            },
+            bases=("food.food",),
+        ),
+        migrations.CreateModel(
+            name="QRCode",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "qr_code_number",
+                    models.PositiveIntegerField(
+                        unique=True, verbose_name="qr code number"
+                    ),
+                ),
+                (
+                    "food_container",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="QR_code",
+                        to="food.food",
+                        verbose_name="food container",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "QR-code",
+                "verbose_name_plural": "QR-codes",
+            },
+        ),
+        migrations.CreateModel(
+            name="TransformedFood",
+            fields=[
+                (
+                    "food_ptr",
+                    models.OneToOneField(
+                        auto_created=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        parent_link=True,
+                        primary_key=True,
+                        serialize=False,
+                        to="food.food",
+                    ),
+                ),
+                (
+                    "creation_date",
+                    models.DateTimeField(
+                        default=django.utils.timezone.now, verbose_name="creation date"
+                    ),
+                ),
+                (
+                    "shelf_life",
+                    models.DurationField(
+                        default=datetime.timedelta(days=3), verbose_name="shelf life"
+                    ),
+                ),
+                (
+                    "ingredients",
+                    models.ManyToManyField(
+                        blank=True,
+                        related_name="transformed_ingredient_inv",
+                        to="food.food",
+                        verbose_name="transformed ingredient",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "Transformed food",
+                "verbose_name_plural": "Transformed foods",
+            },
+            bases=("food.food",),
+        ),
+    ]

apps/food/models.py

@@ -0,0 +1,286 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from datetime import timedelta
+
+from django.db import models, transaction
+from django.utils import timezone
+from django.utils.translation import gettext_lazy as _
+from polymorphic.models import PolymorphicModel
+from member.models import Club
+
+
+class Allergen(models.Model):
+    """
+    Allergen and alimentary restrictions
+    """
+    name = models.CharField(
+        verbose_name=_('name'),
+        max_length=255,
+    )
+
+    class Meta:
+        verbose_name = _("Allergen")
+        verbose_name_plural = _("Allergens")
+
+    def __str__(self):
+        return self.name
+
+
+class Food(PolymorphicModel):
+    """
+    Describe any type of food
+    """
+    name = models.CharField(
+        verbose_name=_("name"),
+        max_length=255,
+    )
+
+    owner = models.ForeignKey(
+        Club,
+        on_delete=models.PROTECT,
+        related_name='+',
+        verbose_name=_('owner'),
+    )
+
+    allergens = models.ManyToManyField(
+        Allergen,
+        blank=True,
+        verbose_name=_('allergens'),
+    )
+
+    expiry_date = models.DateTimeField(
+        verbose_name=_('expiry date'),
+        null=False,
+    )
+
+    end_of_life = models.CharField(
+        blank=True,
+        verbose_name=_('end of life'),
+        max_length=255,
+    )
+
+    is_ready = models.BooleanField(
+        verbose_name=_('is ready'),
+        max_length=255,
+    )
+
+    order = models.CharField(
+        blank=True,
+        verbose_name=_('order'),
+        max_length=255,
+    )
+
+    def __str__(self):
+        return self.name
+
+    @transaction.atomic
+    def update_allergens(self):
+        # update parents
+        for parent in self.transformed_ingredient_inv.iterator():
+            old_allergens = list(parent.allergens.all()).copy()
+            parent.allergens.clear()
+            for child in parent.ingredients.iterator():
+                if child.pk != self.pk:
+                    parent.allergens.set(parent.allergens.union(child.allergens.all()))
+            parent.allergens.set(parent.allergens.union(self.allergens.all()))
+            if old_allergens != list(parent.allergens.all()):
+                parent.save(old_allergens=old_allergens)
+
+    def update_expiry_date(self):
+        # update parents
+        for parent in self.transformed_ingredient_inv.iterator():
+            old_expiry_date = parent.expiry_date
+            parent.expiry_date = parent.shelf_life + parent.creation_date
+            for child in parent.ingredients.iterator():
+                if (child.pk != self.pk
+                    and not (child.polymorphic_ctype.model == 'basicfood'
+                             and child.date_type == 'DDM')):
+                    parent.expiry_date = min(parent.expiry_date, child.expiry_date)
+
+            if self.polymorphic_ctype.model == 'basicfood' and self.date_type == 'DLC':
+                parent.expiry_date = min(parent.expiry_date, self.expiry_date)
+            if old_expiry_date != parent.expiry_date:
+                parent.save()
+
+    class Meta:
+        verbose_name = _('Food')
+        verbose_name_plural = _('Foods')
+
+
+class BasicFood(Food):
+    """
+    A basic food is a food directly buy and stored
+    """
+    arrival_date = models.DateTimeField(
+        default=timezone.now,
+        verbose_name=_('arrival date'),
+    )
+
+    date_type = models.CharField(
+        max_length=255,
+        choices=(
+            ("DLC", "DLC"),
+            ("DDM", "DDM"),
+        )
+    )
+
+    @transaction.atomic
+    def save(self, force_insert=False, force_update=False, using=None, update_fields=None, **kwargs):
+        created = self.pk is None
+        if not created:
+            # Check if important fields are updated
+            old_food = Food.objects.select_for_update().get(pk=self.pk)
+            if not hasattr(self, "_force_save"):
+                # Allergens
+
+                if ('old_allergens' in kwargs
+                        and list(self.allergens.all()) != kwargs['old_allergens']):
+                    self.update_allergens()
+
+                # Expiry date
+                if ((self.expiry_date != old_food.expiry_date
+                        and self.date_type == 'DLC')
+                        or old_food.date_type != self.date_type):
+                    self.update_expiry_date()
+
+        return super().save(force_insert, force_update, using, update_fields)
+
+    @staticmethod
+    def get_lastests_objects(number, distinct_field, order_by_field):
+        """
+        Get the last object with distinct field and ranked with order_by
+        This methods exist because we can't distinct with one field and
+        order with another
+        """
+        foods = BasicFood.objects.order_by(order_by_field).all()
+        field = []
+        for food in foods:
+            if getattr(food, distinct_field) in field:
+                continue
+            else:
+                field.append(getattr(food, distinct_field))
+                number -= 1
+                yield food
+            if not number:
+                return
+
+    class Meta:
+        verbose_name = _('Basic food')
+        verbose_name_plural = _('Basic foods')
+
+    def __str__(self):
+        return self.name
+
+
+class TransformedFood(Food):
+    """
+    A transformed food is a food with ingredients
+    """
+    creation_date = models.DateTimeField(
+        default=timezone.now,
+        verbose_name=_('creation date'),
+    )
+
+    # Without microbiological analyzes, the storage time is 3 days
+    shelf_life = models.DurationField(
+        default=timedelta(days=3),
+        verbose_name=_('shelf life'),
+    )
+
+    ingredients = models.ManyToManyField(
+        Food,
+        blank=True,
+        symmetrical=False,
+        related_name='transformed_ingredient_inv',
+        verbose_name=_('transformed ingredient'),
+    )
+
+    def check_cycle(self, ingredients, origin, checked):
+        for ingredient in ingredients:
+            if ingredient == origin:
+                # We break the cycle
+                self.ingredients.remove(ingredient)
+            if ingredient.polymorphic_ctype.model == 'transformedfood' and ingredient not in checked:
+                ingredient.check_cycle(ingredient.ingredients.all(), origin, checked)
+                checked.append(ingredient)
+
+    @transaction.atomic
+    def save(self, force_insert=False, force_update=False, using=None, update_fields=None, **kwargs):
+        created = self.pk is None
+        if not created:
+            # Check if important fields are updated
+            update = {'allergens': False, 'expiry_date': False}
+            old_food = Food.objects.select_for_update().get(pk=self.pk)
+            if not hasattr(self, "_force_save"):
+                # Allergens
+                # Unfortunately with the many-to-many relation we can't access
+                # to old allergens
+                if ('old_allergens' in kwargs
+                        and list(self.allergens.all()) != kwargs['old_allergens']):
+                    update['allergens'] = True
+
+                # Expiry date
+                update['expiry_date'] = (self.shelf_life != old_food.shelf_life
+                                         or self.creation_date != old_food.creation_date)
+                if update['expiry_date']:
+                    self.expiry_date = self.creation_date + self.shelf_life
+                # Unfortunately with the set method ingredients are already save,
+                # we check cycle after if possible
+                if ('old_ingredients' in kwargs
+                        and list(self.ingredients.all()) != list(kwargs['old_ingredients'])):
+                    update['allergens'] = True
+                    update['expiry_date'] = True
+
+                    # it's preferable to keep a queryset but we allow list too
+                    if type(kwargs['old_ingredients']) is list:
+                        kwargs['old_ingredients'] = Food.objects.filter(
+                            pk__in=[food.pk for food in kwargs['old_ingredients']])
+                    self.check_cycle(self.ingredients.all().difference(kwargs['old_ingredients']), self, [])
+                if update['allergens']:
+                    self.update_allergens()
+                if update['expiry_date']:
+                    self.update_expiry_date()
+
+        if created:
+            self.expiry_date = self.shelf_life + self.creation_date
+
+            # We save here because we need pk for many-to-many relation
+            super().save(force_insert, force_update, using, update_fields)
+
+            for child in self.ingredients.iterator():
+                self.allergens.set(self.allergens.union(child.allergens.all()))
+                if not (child.polymorphic_ctype.model == 'basicfood' and child.date_type == 'DDM'):
+                    self.expiry_date = min(self.expiry_date, child.expiry_date)
+        return super().save(force_insert, force_update, using, update_fields)
+
+    class Meta:
+        verbose_name = _('Transformed food')
+        verbose_name_plural = _('Transformed foods')
+
+    def __str__(self):
+        return self.name
+
+
+class QRCode(models.Model):
+    """
+    QR-code for register food
+    """
+    qr_code_number = models.PositiveIntegerField(
+        unique=True,
+        verbose_name=_('qr code number'),
+    )
+
+    food_container = models.ForeignKey(
+        Food,
+        on_delete=models.CASCADE,
+        related_name='QR_code',
+        verbose_name=_('food container'),
+    )
+
+    class Meta:
+        verbose_name = _('QR-code')
+        verbose_name_plural = _('QR-codes')
+
+    def __str__(self):
+        return _('QR-code number') + ' ' + str(self.qr_code_number)

apps/food/tables.py

@@ -0,0 +1,21 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import django_tables2 as tables
+
+from .models import Food
+
+
+class FoodTable(tables.Table):
+    """
+    List all foods.
+    """
+    class Meta:
+        model = Food
+        template_name = 'django_tables2/bootstrap4.html'
+        fields = ('name', 'owner', 'allergens', 'expiry_date')
+        row_attrs = {
+            'class': 'table-row',
+            'data-href': lambda record: 'detail/' + str(record.pk),
+            'style': 'cursor:pointer',
+        }

apps/food/templates/food/food_detail.html

@@ -0,0 +1,48 @@
+{% extends "base.html" %}
+{% comment %}
+Copyright (C) by BDE ENS Paris-Saclay
+SPDX-License-Identifier: GPL-3.0-or-later
+{% endcomment %}
+{% load i18n crispy_forms_tags %}
+
+{% block content %}
+<div class="card bg-white mb-3">
+  <h3 class="card-header text-center">
+    {{ title }} {{ food.name }}
+  </h3>
+  <div class="card-body">
+    <ul>
+      {% for field, value in fields %}
+      <li> {{ field }} : {{ value }}</li>
+      {% endfor %}
+      {% if meals %}
+      <li> {% trans "Contained in" %} : 
+      {% for meal in meals %}
+      <a href="{% url "food:transformedfood_view" pk=meal.pk %}">{{ meal.name }}</a>{% if not forloop.last %},{% endif %} 
+      {% endfor %}
+      </li>
+      {% endif %}
+      {% if foods %}
+      <li> {% trans "Contain" %} : 
+      {% for food in foods %}
+        <a href="{% url "food:food_view" pk=food.pk %}">{{ food.name }}</a>{% if not forloop.last %},{% endif %}
+      {% endfor %}
+      </li>
+      {% endif %}
+    </ul>
+      {% if update %}
+	<a class="btn btn-sm btn-secondary" href="{% url "food:food_update" pk=food.pk %}">
+	  {% trans "Update" %}
+	</a>
+      {% endif %}
+      {% if add_ingredient %}
+	<a class="btn btn-sm btn-primary" href="{% url "food:add_ingredient" pk=food.pk %}">
+	  {% trans "Add to a meal" %}
+	</a>
+      {% endif %}
+	<a class="btn btn-sm btn-primary" href="{% url "food:food_list" %}">
+	  {% trans "Return to the food list" %}
+	</a>
+  </div>
+</div>
+{% endblock %}

apps/food/templates/food/food_list.html

@@ -0,0 +1,71 @@
+{% extends "base_search.html" %}
+{% comment %}
+Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+SPDX-License-Identifier: GPL-3.0-or-later
+{% endcomment %}
+{% load render_table from django_tables2 %}
+{% load i18n %}
+
+{% block content %}
+{{ block.super }}
+<br>
+<div class="card bg-light mb-3">
+  <h3 class="card-header text-center">
+    {% trans "Meal served" %}
+  </h3>
+  {% if can_add_meal %}
+  <div class="card-footer">
+    <a class="btn btn-sm btn-primary" href="{% url 'food:transformedfood_create' %}">
+      {% trans "New meal" %}
+    </a>
+  </div>
+  {% endif %}
+  {% if served.data %}
+  {% render_table served %}
+  {% else %}
+  <div class="card-body">
+    <div class="alert alert-warning">
+      {% trans "There is no meal served." %}
+    </div>
+  </div>
+</div>
+  {% endif %}
+<div class="card bg-light mb-3">
+  <h3 class="card-header text-center">
+    {% trans "Free food" %}
+  </h3>
+  {% if open.data %}
+  {% render_table open %}
+  {% else %}
+  <div class="card-body">
+    <div class="alert alert-warning">
+      {% trans "There is no free food." %}
+    </div>
+  </div>
+  {% endif %}
+</div>
+{% if club_tables %}
+<div class="card bg-light mb-3">
+  <h3 class="card-header text-center">
+    {% trans "Food of your clubs" %}
+  </h3>
+</div>
+  {% for table in club_tables %}
+<div class="card bg-light mb-3">
+  <h3 class="card-header text-center">
+    {% trans "Food of club" %} {{ table.prefix }} 
+  </h3>
+  {% if table.data %}
+    {% render_table table %}
+  {% else %}
+  <div class="card-body">
+    <div class="alert alert-warning">
+      {% trans "Yours club has not food yet." %}
+    </div>
+  </div>
+  {% endif %}
+</div>
+  {% endfor %}
+  {% endif %}
+</div>
+{% endblock %}

apps/food/templates/food/food_update.html

@@ -0,0 +1,21 @@
+{% extends "base.html" %}
+{% comment %}
+Copyright (C) by BDE ENS Paris-Saclay
+SPDX-License-Identifier: GPL-3.0-or-later
+{% endcomment %}
+{% load i18n crispy_forms_tags %}
+
+{% block content %}
+<div class="card bg-white mb-3">
+  <h3 class="card-header text-center">
+    {{ title }}
+  </h3>
+  <div class="card-body" id="form">
+    <form method="post">
+      {% csrf_token %}
+      {{ form | crispy }}
+      <button class="btn btn-primary" type="submit">{% trans "Submit"%}</button>
+    </form>
+  </div>
+</div>
+{% endblock %}

apps/food/templates/food/qrcode.html

@@ -0,0 +1,52 @@
+{% extends "base.html" %}
+{% comment %}
+Copyright (C) by BDE ENS Paris-Saclay
+SPDX-License-Identifier: GPL-3.0-or-later
+{% endcomment %}
+{% load i18n crispy_forms_tags %}
+{% load render_table from django_tables2 %}
+
+{% block content %}
+<div class="card bg-white mb-3">
+  <h3 class="card-header text-center">
+    {{ title }}
+  </h3>
+  <div class="card-body" id="form">
+    <form method="post">
+      {% csrf_token %}
+      {{ form | crispy }}
+      <button class="btn btn-primary" type="submit">{% trans "Submit"%}</button>
+    </form>
+    <div class="card-body">
+    <h4>
+      {% trans "Copy constructor" %}
+      <a class="btn btn-secondary" href="{% url "food:basicfood_create" slug=slug %}">{% trans "New food" %}</a>
+    </h4>
+      <table class="table">
+	<thead>
+	  <tr>
+	    <th class="orderable">
+	      {% trans "Name" %}
+	    </th>
+	    <th class="orderable">
+	      {% trans "Owner" %}
+	    </th>
+	    <th class="orderable">
+	      {% trans "Expiry date" %}
+	    </th>
+	  </tr>
+	</thead>
+	<tbody>
+	  {% for food in last_items %}
+	    <tr>
+		    <td><a href="{% url "food:basicfood_create" slug=slug %}?copy={{ food.pk }}">{{ food.name }}</a></td>
+	      <td>{{ food.owner }}</td>
+	      <td>{{ food.expiry_date }}</td>
+	    </tr>
+	  {% endfor %}
+	</tbody>
+      </table>
+    </div>
+  </div>
+</div>
+{% endblock %}

apps/food/tests/test_food.py

@@ -0,0 +1,170 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from api.tests import TestAPI
+from django.contrib.auth.models import User
+from django.test import TestCase
+from django.urls import reverse
+from django.utils import timezone
+
+from ..api.views import AllergenViewSet, BasicFoodViewSet, TransformedFoodViewSet, QRCodeViewSet
+from ..models import Allergen, BasicFood, TransformedFood, QRCode
+
+
+class TestFood(TestCase):
+    """
+    Test food
+    """
+    fixtures = ('initial',)
+
+    def setUp(self):
+        self.user = User.objects.create_superuser(
+            username='admintoto',
+            password='toto1234',
+            email='toto@example.com'
+        )
+        self.client.force_login(self.user)
+
+        sess = self.client.session
+        sess['permission_mask'] = 42
+        sess.save()
+
+        self.allergen = Allergen.objects.create(
+            name='allergen',
+        )
+
+        self.basicfood = BasicFood.objects.create(
+            name='basicfood',
+            owner_id=1,
+            expiry_date=timezone.now(),
+            is_ready=False,
+            date_type='DLC',
+        )
+
+        self.transformedfood = TransformedFood.objects.create(
+            name='transformedfood',
+            owner_id=1,
+            expiry_date=timezone.now(),
+            is_ready=False,
+        )
+
+        self.qrcode = QRCode.objects.create(
+            qr_code_number=1,
+            food_container=self.basicfood,
+        )
+
+        def test_food_list(self):
+            """
+            Display food list
+            """
+            response = self.client.get(reverse('food:food_list'))
+            self.assertEqual(response.status_code, 200)
+
+        def test_qrcode_create(self):
+            """
+            Display QRCode creation
+            """
+            response = self.client.get(reverse('food:qrcode_create'))
+            self.assertEqual(response.status_code, 200)
+
+        def test_basicfood_create(self):
+            """
+            Display BasicFood creation
+            """
+            response = self.client.get(reverse('food:basicfood_create'))
+            self.assertEqual(response.status_code, 200)
+
+        def test_transformedfood_create(self):
+            """
+            Display TransformedFood creation
+            """
+            response = self.client.get(reverse('food:transformedfood_create'))
+            self.assertEqual(response.status_code, 200)
+
+        def test_food_create(self):
+            """
+            Display Food update
+            """
+            response = self.client.get(reverse('food:food_update'))
+            self.assertEqual(response.status_code, 200)
+
+        def test_food_view(self):
+            """
+            Display Food detail
+            """
+            response = self.client.get(reverse('food:food_view'))
+            self.assertEqual(response.status_code, 302)
+
+        def test_basicfood_view(self):
+            """
+            Display BasicFood detail
+            """
+            response = self.client.get(reverse('food:basicfood_view'))
+            self.assertEqual(response.status_code, 200)
+
+        def test_transformedfood_view(self):
+            """
+            Display TransformedFood detail
+            """
+            response = self.client.get(reverse('food:transformedfood_view'))
+            self.assertEqual(response.status_code, 200)
+
+        def test_add_ingredient(self):
+            """
+            Display add ingredient view
+            """
+            response = self.client.get(reverse('food:add_ingredient'))
+            self.assertEqual(response.status_code, 200)
+
+
+class TestFoodAPI(TestAPI):
+    def setUp(self) -> None:
+        super().setUP()
+
+        self.allergen = Allergen.objects.create(
+            name='name',
+        )
+
+        self.basicfood = BasicFood.objects.create(
+            name='basicfood',
+            owner_id=1,
+            expiry_date=timezone.now(),
+            is_ready=False,
+            date_type='DLC',
+        )
+
+        self.transformedfood = TransformedFood.objects.create(
+            name='transformedfood',
+            owner_id=1,
+            expiry_date=timezone.now(),
+            is_ready=False,
+        )
+
+        self.qrcode = QRCode.objects.create(
+            qr_code_number=1,
+            food_container=self.basicfood,
+        )
+
+        def test_allergen_api(self):
+            """
+            Load Allergen API page and test all filters and permissions
+            """
+            self.check_viewset(AllergenViewSet, '/api/food/allergen/')
+
+        def test_basicfood_api(self):
+            """
+            Load BasicFood API page and test all filters and permissions
+            """
+            self.check_viewset(BasicFoodViewSet, '/api/food/basicfood/')
+
+        def test_transformedfood_api(self):
+            """
+            Load TransformedFood API page and test all filters and permissions
+            """
+            self.check_viewset(TransformedFoodViewSet, '/api/food/transformedfood/')
+
+        def test_qrcode_api(self):
+            """
+            Load QRCode API page and test all filters and permissions
+            """
+            self.check_viewset(QRCodeViewSet, '/api/food/qrcode/')

apps/food/urls.py

@@ -0,0 +1,20 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from django.urls import path
+
+from . import views
+
+app_name = 'food'
+
+urlpatterns = [
+    path('', views.FoodListView.as_view(), name='food_list'),
+    path('<int:slug>', views.QRCodeCreateView.as_view(), name='qrcode_create'),
+    path('<int:slug>/add/basic', views.BasicFoodCreateView.as_view(), name='basicfood_create'),
+    path('add/transformed', views.TransformedFoodCreateView.as_view(), name='transformedfood_create'),
+    path('update/<int:pk>', views.FoodUpdateView.as_view(), name='food_update'),
+    path('detail/<int:pk>', views.FoodDetailView.as_view(), name='food_view'),
+    path('detail/basic/<int:pk>', views.BasicFoodDetailView.as_view(), name='basicfood_view'),
+    path('detail/transformed/<int:pk>', views.TransformedFoodDetailView.as_view(), name='transformedfood_view'),
+    path('add/ingredient/<int:pk>', views.AddIngredientView.as_view(), name='add_ingredient'),
+]

apps/food/utils.py

@@ -0,0 +1,53 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from django.utils.translation import gettext_lazy as _
+
+seconds = (_('second'), _('seconds'))
+minutes = (_('minute'), _('minutes'))
+hours = (_('hour'), _('hours'))
+days = (_('day'), _('days'))
+weeks = (_('week'), _('weeks'))
+
+
+def plural(x):
+    if x == 1:
+        return 0
+    return 1
+
+
+def pretty_duration(duration):
+    """
+    I receive datetime.timedelta object
+    You receive string object
+    """
+    text = []
+    sec = duration.seconds
+    d = duration.days
+
+    if d >= 7:
+        w = d // 7
+        text.append(str(w) + ' ' + weeks[plural(w)])
+        d -= w * 7
+    if d > 0:
+        text.append(str(d) + ' ' + days[plural(d)])
+
+    if sec >= 3600:
+        h = sec // 3600
+        text.append(str(h) + ' ' + hours[plural(h)])
+        sec -= h * 3600
+
+    if sec >= 60:
+        m = sec // 60
+        text.append(str(m) + ' ' + minutes[plural(m)])
+        sec -= m * 60
+
+    if sec > 0:
+        text.append(str(sec) + ' ' + seconds[plural(sec)])
+
+    if len(text) == 0:
+        return ''
+    if len(text) == 1:
+        return text[0]
+    if len(text) >= 2:
+        return ', '.join(t for t in text[:-1]) + ' ' + _('and') + ' ' + text[-1]

apps/food/views.py

@@ -0,0 +1,402 @@
+# Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from datetime import timedelta
+
+from api.viewsets import is_regex
+from django_tables2.views import MultiTableMixin
+from django.db import transaction
+from django.db.models import Q
+from django.http import HttpResponseRedirect
+from django.views.generic import DetailView, UpdateView
+from django.views.generic.list import ListView
+from django.urls import reverse_lazy
+from django.utils import timezone
+from django.utils.translation import gettext_lazy as _
+from member.models import Club, Membership
+from permission.backends import PermissionBackend
+from permission.views import ProtectQuerysetMixin, ProtectedCreateView, LoginRequiredMixin
+
+from .models import Food, BasicFood, TransformedFood, QRCode
+from .forms import AddIngredientForms, BasicFoodForms, TransformedFoodForms, BasicFoodUpdateForms, TransformedFoodUpdateForms, QRCodeForms
+from .tables import FoodTable
+from .utils import pretty_duration
+
+
+class FoodListView(ProtectQuerysetMixin, LoginRequiredMixin, MultiTableMixin, ListView):
+    """
+    Display Food
+    """
+    model = Food
+    tables = [FoodTable, FoodTable, FoodTable, ]
+    extra_context = {"title": _('Food')}
+    template_name = 'food/food_list.html'
+
+    def get_queryset(self, **kwargs):
+        return super().get_queryset(**kwargs).distinct()
+
+    def get_tables(self):
+        bureau_role_pk = 4
+        clubs = Club.objects.filter(membership__in=Membership.objects.filter(
+            user=self.request.user, roles=bureau_role_pk).filter(
+                date_end__gte=timezone.now()))
+
+        tables = [FoodTable] * (clubs.count() + 3)
+        self.tables = tables
+        tables = super().get_tables()
+        tables[0].prefix = 'search-'
+        tables[1].prefix = 'open-'
+        tables[2].prefix = 'served-'
+        for i in range(clubs.count()):
+            tables[i + 3].prefix = clubs[i].name
+        return tables
+
+    def get_tables_data(self):
+        # table search
+        qs = self.get_queryset().order_by('name')
+        if "search" in self.request.GET and self.request.GET['search']:
+            pattern = self.request.GET['search']
+
+            # check regex
+            valid_regex = is_regex(pattern)
+            suffix = '__iregex' if valid_regex else '__istartswith'
+            prefix = '^' if valid_regex else ''
+            qs = qs.filter(Q(**{f'name{suffix}': prefix + pattern}))
+        else:
+            qs = qs.none()
+        search_table = qs.filter(PermissionBackend.filter_queryset(self.request, Food, 'view'))
+        # table open
+        open_table = self.get_queryset().order_by('expiry_date').filter(
+            Q(polymorphic_ctype__model='transformedfood')
+            | Q(polymorphic_ctype__model='basicfood', basicfood__date_type='DLC')).filter(
+                expiry_date__lt=timezone.now()).filter(
+                    PermissionBackend.filter_queryset(self.request, Food, 'view'))
+        # table served
+        served_table = self.get_queryset().order_by('-pk').filter(
+            end_of_life='', is_ready=True)
+        # tables club
+        bureau_role_pk = 4
+        clubs = Club.objects.filter(membership__in=Membership.objects.filter(
+            user=self.request.user, roles=bureau_role_pk).filter(
+                date_end__gte=timezone.now()))
+        club_table = []
+        for club in clubs:
+            club_table.append(self.get_queryset().order_by('expiry_date').filter(
+                owner=club, end_of_life='').filter(
+                    PermissionBackend.filter_queryset(self.request, Food, 'view')
+            ))
+        return [search_table, open_table, served_table] + club_table
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+
+        tables = context['tables']
+        # for extends base_search.html we need to name 'search_table' in 'table'
+        for name, table in zip(['table', 'open', 'served'], tables):
+            context[name] = table
+        context['club_tables'] = tables[3:]
+
+        context['can_add_meal'] = PermissionBackend.check_perm(self.request, 'food.transformedfood_add')
+        return context
+
+
+class QRCodeCreateView(ProtectQuerysetMixin, ProtectedCreateView):
+    """
+    A view to add qrcode
+    """
+    model = QRCode
+    template_name = 'food/qrcode.html'
+    form_class = QRCodeForms
+    extra_context = {"title": _("Add a new QRCode")}
+
+    def get(self, *args, **kwargs):
+        qrcode = kwargs["slug"]
+        if self.model.objects.filter(qr_code_number=qrcode).count() > 0:
+            pk = self.model.objects.get(qr_code_number=qrcode).food_container.pk
+            return HttpResponseRedirect(reverse_lazy("food:food_view", kwargs={"pk": pk}))
+        else:
+            return super().get(*args, **kwargs)
+
+    @transaction.atomic
+    def form_valid(self, form):
+        qrcode_food_form = QRCodeForms(data=self.request.POST)
+        if not qrcode_food_form.is_valid():
+            return self.form_invalid(form)
+
+        qrcode = form.save(commit=False)
+        qrcode.qr_code_number = self.kwargs['slug']
+        qrcode._force_save = True
+        qrcode.save()
+        qrcode.refresh_from_db()
+        return super().form_valid(form)
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context['slug'] = self.kwargs['slug']
+
+        # get last 10 BasicFood objects with distincts 'name' ordered by '-pk'
+        # we can't use .distinct and .order_by with differents columns hence the generator
+        context['last_items'] = [food for food in BasicFood.get_lastests_objects(10, 'name', '-pk')]
+        return context
+
+    def get_success_url(self, **kwargs):
+        self.object.refresh_from_db()
+        return reverse_lazy('food:food_view', kwargs={'pk': self.object.food_container.pk})
+
+    def get_sample_object(self):
+        return QRCode(
+            qr_code_number=self.kwargs['slug'],
+            food_container_id=1,
+        )
+
+
+class BasicFoodCreateView(ProtectQuerysetMixin, ProtectedCreateView):
+    """
+    A view to add basicfood
+    """
+    model = BasicFood
+    form_class = BasicFoodForms
+    extra_context = {"title": _("Add an aliment")}
+    template_name = "food/food_update.html"
+
+    def get_sample_object(self):
+        return BasicFood(
+            name="",
+            owner_id=1,
+            expiry_date=timezone.now(),
+            is_ready=True,
+            arrival_date=timezone.now(),
+            date_type='DLC',
+        )
+
+    @transaction.atomic
+    def form_valid(self, form):
+        if QRCode.objects.filter(qr_code_number=self.kwargs['slug']).count() > 0:
+            return HttpResponseRedirect(reverse_lazy('food:qrcode_create', kwargs={'slug': self.kwargs['slug']}))
+        food_form = BasicFoodForms(data=self.request.POST)
+        if not food_form.is_valid():
+            return self.form_invalid(form)
+
+        food = form.save(commit=False)
+        food.is_ready = False
+        food.save()
+        food.refresh_from_db()
+
+        qrcode = QRCode()
+        qrcode.qr_code_number = self.kwargs['slug']
+        qrcode.food_container = food
+        qrcode.save()
+
+        return super().form_valid(form)
+
+    def get_success_url(self, **kwargs):
+        self.object.refresh_from_db()
+        return reverse_lazy('food:basicfood_view', kwargs={"pk": self.object.pk})
+
+    def get_context_data(self, *args, **kwargs):
+        context = super().get_context_data(*args, **kwargs)
+
+        copy = self.request.GET.get('copy', None)
+        if copy is not None:
+            food = BasicFood.objects.get(pk=copy)
+            print(context['form'].fields)
+            for field in context['form'].fields:
+                if field == 'allergens':
+                    context['form'].fields[field].initial = getattr(food, field).all()
+                else:
+                    context['form'].fields[field].initial = getattr(food, field)
+
+        return context
+
+
+class TransformedFoodCreateView(ProtectQuerysetMixin, ProtectedCreateView):
+    """
+    A view to add transformedfood
+    """
+    model = TransformedFood
+    form_class = TransformedFoodForms
+    extra_context = {"title": _("Add a meal")}
+    template_name = "food/food_update.html"
+
+    def get_sample_object(self):
+        return TransformedFood(
+            name="",
+            owner_id=1,
+            expiry_date=timezone.now(),
+            is_ready=True,
+        )
+
+    @transaction.atomic
+    def form_valid(self, form):
+        form.instance.expiry_date = timezone.now() + timedelta(days=3)
+        form.instance.is_ready = False
+        return super().form_valid(form)
+
+    def get_success_url(self, **kwargs):
+        self.object.refresh_from_db()
+        return reverse_lazy('food:transformedfood_view', kwargs={"pk": self.object.pk})
+
+
+class AddIngredientView(ProtectQuerysetMixin, UpdateView):
+    """
+    A view to add ingredient to a meal
+    """
+    model = Food
+    extra_context = {"title": _("Add the ingredient:")}
+    form_class = AddIngredientForms
+    template_name = 'food/food_update.html'
+
+    def get_context_data(self, *args, **kwargs):
+        context = super().get_context_data(*args, **kwargs)
+        context['title'] += ' ' + self.object.name
+        return context
+
+    @transaction.atomic
+    def form_valid(self, form):
+        meals = TransformedFood.objects.filter(pk__in=form.data.getlist('ingredients')).all()
+        for meal in meals:
+            old_ingredients = list(meal.ingredients.all()).copy()
+            old_allergens = list(meal.allergens.all()).copy()
+            meal.ingredients.add(self.object.pk)
+            # update allergen and expiry date if necessary
+            if not (self.object.polymorphic_ctype.model == 'basicfood'
+                    and self.object.date_type == 'DDM'):
+                meal.expiry_date = min(meal.expiry_date, self.object.expiry_date)
+            meal.allergens.set(meal.allergens.union(self.object.allergens.all()))
+            meal.save(old_ingredients=old_ingredients, old_allergens=old_allergens)
+            if 'fully_used' in form.data:
+                if not self.object.end_of_life:
+                    self.object.end_of_life = _(f'Food fully used in : {meal.name}')
+                else:
+                    self.object.end_of_life += ', ' + meal.name
+        if 'fully_used' in form.data:
+            self.object.is_ready = False
+        self.object.save()
+        # We redirect only the first parent
+        parent_pk = meals[0].pk
+        return HttpResponseRedirect(self.get_success_url(parent_pk=parent_pk))
+
+    def get_success_url(self, **kwargs):
+        return reverse_lazy('food:transformedfood_view', kwargs={"pk": kwargs['parent_pk']})
+
+
+class FoodUpdateView(ProtectQuerysetMixin, LoginRequiredMixin, UpdateView):
+    """
+    A view to update Food
+    """
+    model = Food
+    extra_context = {"title": _("Update an aliment")}
+    template_name = 'food/food_update.html'
+
+    @transaction.atomic
+    def form_valid(self, form):
+        form.instance.creater = self.request.user
+        food = Food.objects.get(pk=self.kwargs['pk'])
+        old_allergens = list(food.allergens.all()).copy()
+
+        if food.polymorphic_ctype.model == 'transformedfood':
+            old_ingredients = food.ingredients.all()
+            form.instance.shelf_life = timedelta(
+                seconds=int(form.data['shelf_life']) * 60 * 60)
+
+        food_form = self.get_form_class()(data=self.request.POST)
+        if not food_form.is_valid():
+            return self.form_invalid(form)
+        ans = super().form_valid(form)
+        if food.polymorphic_ctype.model == 'transformedfood':
+            form.instance.save(old_ingredients=old_ingredients)
+        else:
+            form.instance.save(old_allergens=old_allergens)
+        return ans
+
+    def get_form_class(self, **kwargs):
+        food = Food.objects.get(pk=self.kwargs['pk'])
+        if food.polymorphic_ctype.model == 'basicfood':
+            return BasicFoodUpdateForms
+        else:
+            return TransformedFoodUpdateForms
+
+    def get_form(self, **kwargs):
+        form = super().get_form(**kwargs)
+        if 'shelf_life' in form.initial:
+            hours = form.initial['shelf_life'].days * 24 + form.initial['shelf_life'].seconds // 3600
+            form.initial['shelf_life'] = hours
+        return form
+
+    def get_success_url(self, **kwargs):
+        self.object.refresh_from_db()
+        return reverse_lazy('food:food_view', kwargs={"pk": self.object.pk})
+
+
+class FoodDetailView(ProtectQuerysetMixin, LoginRequiredMixin, DetailView):
+    """
+    A view to see a food
+    """
+    model = Food
+    extra_context = {"title": _('Details of:')}
+    context_object_name = "food"
+    template_name = "food/food_detail.html"
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        fields = ["name", "owner", "expiry_date", "allergens", "is_ready", "end_of_life", "order"]
+
+        fields = dict([(field, getattr(self.object, field)) for field in fields])
+        if fields["is_ready"]:
+            fields["is_ready"] = _("Yes")
+        else:
+            fields["is_ready"] = _("No")
+        fields["allergens"] = ", ".join(
+            allergen.name for allergen in fields["allergens"].all())
+
+        context["fields"] = [(
+            Food._meta.get_field(field).verbose_name.capitalize(),
+            value) for field, value in fields.items()]
+        context["meals"] = self.object.transformed_ingredient_inv.all()
+        context["update"] = PermissionBackend.check_perm(self.request, "food.change_food")
+        context["add_ingredient"] = self.object.end_of_life = '' and PermissionBackend.check_perm(self.request, "food.change_transformedfood")
+        return context
+
+    def get(self, *args, **kwargs):
+        model = Food.objects.get(pk=kwargs['pk']).polymorphic_ctype.model
+        if 'stop_redirect' in kwargs and kwargs['stop_redirect']:
+            return super().get(*args, **kwargs)
+        kwargs = {'pk': kwargs['pk']}
+        if model == 'basicfood':
+            return HttpResponseRedirect(reverse_lazy("food:basicfood_view", kwargs=kwargs))
+        return HttpResponseRedirect(reverse_lazy("food:transformedfood_view", kwargs=kwargs))
+
+
+class BasicFoodDetailView(FoodDetailView):
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        fields = ['arrival_date', 'date_type']
+        for field in fields:
+            context["fields"].append((
+                BasicFood._meta.get_field(field).verbose_name.capitalize(),
+                getattr(self.object, field)
+            ))
+        return context
+
+    def get(self, *args, **kwargs):
+        kwargs['stop_redirect'] = (Food.objects.get(pk=kwargs['pk']).polymorphic_ctype.model == 'basicfood')
+        return super().get(*args, **kwargs)
+
+
+class TransformedFoodDetailView(FoodDetailView):
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context["fields"].append((
+            TransformedFood._meta.get_field("creation_date").verbose_name.capitalize(),
+            self.object.creation_date
+        ))
+        context["fields"].append((
+            TransformedFood._meta.get_field("shelf_life").verbose_name.capitalize(),
+            pretty_duration(self.object.shelf_life)
+        ))
+        context["foods"] = self.object.ingredients.all()
+        return context
+
+    def get(self, *args, **kwargs):
+        kwargs['stop_redirect'] = (Food.objects.get(pk=kwargs['pk']).polymorphic_ctype.model == 'transformedfood')
+        return super().get(*args, **kwargs)

apps/permission/fixtures/initial.json

@@ -3346,7 +3346,7 @@
                 "food",
                 "transformedfood"
             ],
-            "query": "{\"is_ready\": true, \"is_active\": true, \"was_eaten\": false}",
+            "query": "{\"is_ready\": true}",
             "type": "view",
             "mask": 1,
             "field": "",
@@ -3426,7 +3426,7 @@
                 "food",
                 "basicfood"
             ],
-            "query": "{\"is_active\": true}",
+            "query": "{\"is_ready\": true}",
             "type": "view",
             "mask": 3,
             "field": "",
@@ -3442,7 +3442,7 @@
                 "food",
                 "basicfood"
             ],
-            "query": "{\"is_active\": true, \"owner\": [\"club\"]}",
+            "query": "{\"is_ready\": true, \"owner\": [\"club\"]}",
             "type": "view",
             "mask": 3,
             "field": "",
@@ -3474,7 +3474,7 @@
                 "food",
                 "basicfood"
             ],
-            "query": "{\"is_active\": true, \"was_eaten\": false}",
+            "query": "{\"is_ready\": true}",
             "type": "change",
             "mask": 3,
             "field": "allergens",
@@ -3490,7 +3490,7 @@
                 "food",
                 "basicfood"
             ],
-            "query": "{\"is_active\": true, \"was_eaten\": false, \"owner\": [\"club\"]}",
+            "query": "{\"is_ready\": true, \"owner\": [\"club\"]}",
             "type": "change",
             "mask": 3,
             "field": "allergens",
@@ -3554,10 +3554,10 @@
                 "food",
                 "transformedfood"
             ],
-            "query": "{\"is_active\": true}",
+            "query": "{\"is_ready\": true}",
             "type": "change",
             "mask": 3,
-            "field": "was_eaten",
+            "field": "end_of_life",
             "permanent": false,
             "description": "Indiquer si un plat a été mangé"
         }
@@ -3570,7 +3570,7 @@
                 "food",
                 "transformedfood"
             ],
-            "query": "{\"is_active\": true, \"owner\": [\"club\"]}",
+            "query": "{\"is_ready\": true, \"owner\": [\"club\"]}",
             "type": "change",
             "mask": 3,
             "field": "is_ready",
@@ -3586,10 +3586,10 @@
                 "food",
                 "transformedfood"
             ],
-            "query": "{\"is_active\": true}",
+            "query": "{\"is_ready\": true}",
             "type": "change",
             "mask": 3,
-            "field": "is_active",
+            "field": "is_ready",
             "permanent": false,
             "description": "Archiver un plat"
         }
@@ -3602,30 +3602,14 @@
                 "food",
                 "basicfood"
             ],
-            "query": "{\"is_active\": true}",
+            "query": "{\"is_ready\": true}",
             "type": "change",
             "mask": 3,
-            "field": "is_active",
+            "field": "is_ready",
             "permanent": false,
             "description": "Archiver de la bouffe"
         }
     },
-    {
-        "model": "permission.permission",
-        "pk": 230,
-        "fields": {
-            "model": [
-                "food",
-                "transformedfood"
-            ],
-            "query": "{\"is_active\": true}",
-            "type": "view",
-            "mask": 3,
-            "field": "",
-            "permanent": false,
-            "description": "Voir tout les plats actifs"
-        }
-    },
     {
         "model": "permission.permission",
         "pk": 231,
@@ -3650,7 +3634,7 @@
                 "food",
                 "qrcode"
             ],
-            "query": "{\"food_container__is_active\": true}",
+            "query": "{\"food_container__is_ready\": true}",
             "type": "view",
             "mask": 3,
             "field": "",
@@ -3666,7 +3650,7 @@
                 "food",
                 "qrcode"
             ],
-            "query": "{\"food_container__owner\": [\"club\"], \"food_container__is_active\": true}",
+            "query": "{\"food_container__owner\": [\"club\"], \"food_container__is_ready\": true}",
             "type": "view",
             "mask": 3,
             "field": "",
@@ -3682,7 +3666,7 @@
                 "food",
                 "transformedfood"
             ],
-            "query": "{\"owner\": [\"club\"], \"is_active\": true}",
+            "query": "{\"owner\": [\"club\"]}",
             "type": "change",
             "mask": 3,
             "field": "ingredients",
@@ -3714,7 +3698,7 @@
                 "food",
                 "food"
             ],
-            "query": "{\"is_active\": true}",
+            "query": "[]",
             "type": "view",
             "mask": 3,
             "field": "",
@@ -3730,7 +3714,7 @@
                 "food",
                 "food"
             ],
-            "query": "{\"is_active\": true, \"owner\": [\"club\"]}",
+            "query": "{\"owner\": [\"club\"]}",
             "type": "view",
             "mask": 3,
             "field": "",
@@ -4601,7 +4585,6 @@
                 227,
                 228,
                 229,
-                230,
                 232,
                 234,
                 236