def update(self, instance, validated_data):
instance.user = validated_data.get('user', instance.user)
instance.save()
if 'ingredients' in validated_data:
# Delete any quantified ingredients not included in the request.
quantified_ingredient_ids = [item.get('id') for item in validated_data['ingredients']]
for quantified_ingredient in instance.ingredients.all():
if quantified_ingredient.id not in quantified_ingredient_ids:
quantified_ingredient.delete()
# Create or update quantified ingredient instances that are in the request.
for item in validated_data['ingredients']:
if item.get('units') is not None:
units = Unit(**item['units'])
units.save()
else:
units = None
name = Ingredient(**item['name'])
name.save()
quantified_ingredient = QuantifiedIngredient(id=item.get('id'), qty=item.get('qty'), name=name, is_checked=item.get('is_checked', QuantifiedIngredient._meta.get_field('is_checked').get_default()),
units=units, grocery_list=instance, original_recipe=item.get('original_recipe'))
quantified_ingredient.save()
return instance
def update(self, instance, validated_data):
instance.name = validated_data.get('name', instance.name)
instance.description = validated_data.get('description', instance.description)
instance.photo = validated_data.get('photo', instance.photo)
instance.is_public = validated_data.get('is_public', instance.is_public)
instance.author = validated_data.get('author', instance.author)
instance.tags = validated_data.get('tags', instance.tags)
instance.favorite_by = validated_data.get('favorite_by', instance.favorite_by)
instance.servings = validated_data.get('servings', instance.servings)
instance.difficulty = validated_data.get('difficulty', instance.difficulty)
instance.ratings = validated_data.get('ratings', instance.ratings)
instance.save()
if 'preparation_steps' in validated_data:
# Delete any preparation steps not included in the request.
preparation_step_ids = [item.get('id') for item in validated_data['preparation_steps']]
for preparation_step in instance.preparation_steps.all():
if preparation_step.id not in preparation_step_ids:
preparation_step.delete()
# Create or update preparation step instances that are in the request.
for item in validated_data['preparation_steps']:
preparation_step = PreparationStep(id=item.get('id'), text=item['text'], step_number=item['step_number'], recipe=instance)
preparation_step.save()
if 'ingredients' in validated_data:
# Delete any quantified ingredients not included in the request.
quantified_ingredient_ids = [item.get('id') for item in validated_data['ingredients']]
for quantified_ingredient in instance.ingredients.all():
if quantified_ingredient.id not in quantified_ingredient_ids:
quantified_ingredient.delete()
# Create or update quantified ingredient instances that are in the request.
for item in validated_data['ingredients']:
units = Unit(**item['units'])
units.save()
name = Ingredient(**item['name'])
name.save()
quantified_ingredient = QuantifiedIngredient(id=item.get('id'), qty=item['qty'], name=name,
units=units, recipe=instance, original_recipe=instance)
quantified_ingredient.save()
return instance