Add recipe id

recipes/models.py

@@ -1,11 +1,12 @@
 from django.conf import settings
-from django.db.models import (Model, CharField, ForeignKey, IntegerField,
+from django.db.models import (Model, AutoField, CharField, ForeignKey, IntegerField,
                               TextField, DecimalField,  ManyToManyField,
                               CASCADE)
 from inventory.models import QuantitativeUnit, Product
 
 
 class Recipe(Model):
+    id = AutoField(primary_key=True)
     instructions = TextField(blank=True)
     ingredients = ManyToManyField(Product, through='Ingredient')
     name = CharField(max_length=255)

recipes/schema.py

@@ -3,11 +3,13 @@
 from graphene_django import DjangoObjectType
 from graphene_django.filter import DjangoFilterConnectionField
 from .models import Recipe, Ingredient
+from django.core.exceptions import ObjectDoesNotExist
 
 
 class IngredientType(DjangoObjectType):
     class Meta:
         model = Ingredient
+        fields = "__all__"
 
 
 class RecipeType(DjangoObjectType):
@@ -16,29 +18,32 @@ class Meta:
         fields = "__all__"
         filter_fields = {'name': ['icontains'], 'ingredient__product__id': ['exact']}
         interfaces = (Node, )
-        interfaces = (graphene.Node,)
+
+    recipe_id = graphene.ID()
+
+    def resolve_recipe_id(self, info):
+        return self.id
 
 
 class Query(graphene.ObjectType):
-    recipe = graphene.Field(RecipeType, id=graphene.Int(),
+    recipe = graphene.Field(RecipeType, id=graphene.ID(required=True),
                             name=graphene.String())
 
     recipes = DjangoFilterConnectionField(RecipeType)
 
     class Arguments:
-        ingredient_id = graphene.ID()
-
-    def resolve_recipe(self, info, **kwargs):
-        id = kwargs.get('id')
-        name = kwargs.get('name')
+        ingredient_id = graphene.ID(required=True)
 
-        if id is not None:
-            return Recipe.objects.get(pk=id)
+    def resolve_recipe(self, info, id: graphene.ID = None, name: str = None):
+        try:
+            if id:
+                return Recipe.objects.get(pk=id)
 
-        if name is not None:
-            return Recipe.objects.get(name=name)
+            if name:
+                return Recipe.objects.get(name=name)
 
-        return None
+        except ObjectDoesNotExist:
+            return None
 
     def resolve_recipes(self, info, **kwargs):
         return Recipe.objects.all()