Add model Recipe

apps/food/models.py

@@ -1,6 +1,7 @@
 # Copyright (C) 2018-2025 by BDE ENS Paris-Saclay
 # SPDX-License-Identifier: GPL-3.0-or-later
 
+import json
 from datetime import timedelta
 
 from django.db import models, transaction
@@ -513,3 +514,48 @@ class FoodTransaction(Transaction):
     def save(self, *args, **kwargs):
         self.valid = self.order.served
         super().save(*args, **kwargs)
+
+
+class Recipe(models.Model):
+    """
+    A recipe is a list of ingredients one can use to easily create a recurrent TransformedFood
+    """
+    name = models.CharField(
+        verbose_name=_("name"),
+        max_length=255,
+    )
+
+    ingredients_json = models.TextField(
+        blank=True,
+        default="[]",
+        verbose_name=_("list of ingredients"),
+        help_text=_("Ingredients of the recipe, encoded in JSON")
+    )
+
+    creater = models.ForeignKey(
+        Club,
+        on_delete=models.CASCADE,
+        verbose_name=_("creater"),
+    )
+
+    class Meta:
+        verbose_name = _("Recipe")
+        verbose_name_plural = _("Recipes")
+        unique_together = ('name', 'creater',)
+
+    def __str__(self):
+        return "{name} ({creater})".format(name=self.name, creater=str(self.creater))
+
+    @property
+    def ingredients(self):
+        """
+        Ingredients are stored in a JSON string
+        """
+        return json.loads(self.ingredients_json)
+
+    @ingredients.setter
+    def ingredients(self, ingredients):
+        """
+        Store ingredients as JSON string
+        """
+        self.ingredients_json = json.dumps(ingredients, indent=2)