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Updated Tutorial with Highlights

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This commit is contained in:
athul 2019-10-18 19:58:34 +05:30
parent b085b5922a
commit 076e978bd7
2 changed files with 61 additions and 60 deletions
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58
docs/schema.py Normal file
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@ -0,0 +1,58 @@
import graphene
from graphene_django.types import DjangoObjectType
from cookbook.ingredients.models import Category, Ingredient
class CategoryType(DjangoObjectType):
class Meta:
model = Category
class IngredientType(DjangoObjectType):
class Meta:
model = Ingredient
class Query(object):
category = graphene.Field(CategoryType,
id=graphene.Int(),
name=graphene.String())
all_categories = graphene.List(CategoryType)
ingredient = graphene.Field(IngredientType,
id=graphene.Int(),
name=graphene.String())
all_ingredients = graphene.List(IngredientType)
def resolve_all_categories(self, info, **kwargs):
return Category.objects.all()
def resolve_all_ingredients(self, info, **kwargs):
return Ingredient.objects.all()
def resolve_category(self, info, **kwargs):
id = kwargs.get('id')
name = kwargs.get('name')
if id is not None:
return Category.objects.get(pk=id)
if name is not None:
return Category.objects.get(name=name)
return None
def resolve_ingredient(self, info, **kwargs):
id = kwargs.get('id')
name = kwargs.get('name')
if id is not None:
return Ingredient.objects.get(pk=id)
if name is not None:
return Ingredient.objects.get(name=name)
return None

63
docs/tutorial-plain.rst
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@ -417,67 +417,10 @@ Getting single objects
So far, we have been able to fetch list of objects and follow relation. But what about single objects? So far, we have been able to fetch list of objects and follow relation. But what about single objects?
We can update our schema to support that, by adding new query for ``ingredient`` and ``category`` and adding arguments, so we can query for specific objects. We can update our schema to support that, by adding new query for ``ingredient`` and ``category`` and adding arguments, so we can query for specific objects.
Add the **Highlighted** lines to ``cookbook/ingredients/schema.py``
.. code:: python .. literalinclude:: schema.py
:emphasize-lines: 19-21,25-27,36-58
import graphene
from graphene_django.types import DjangoObjectType
from cookbook.ingredients.models import Category, Ingredient
class CategoryType(DjangoObjectType):
class Meta:
model = Category
class IngredientType(DjangoObjectType):
class Meta:
model = Ingredient
class Query(object):
category = graphene.Field(CategoryType,
id=graphene.Int(),
name=graphene.String())
all_categories = graphene.List(CategoryType)
ingredient = graphene.Field(IngredientType,
id=graphene.Int(),
name=graphene.String())
all_ingredients = graphene.List(IngredientType)
def resolve_all_categories(self, info, **kwargs):
return Category.objects.all()
def resolve_all_ingredients(self, info, **kwargs):
return Ingredient.objects.all()
def resolve_category(self, info, **kwargs):
id = kwargs.get('id')
name = kwargs.get('name')
if id is not None:
return Category.objects.get(pk=id)
if name is not None:
return Category.objects.get(name=name)
return None
def resolve_ingredient(self, info, **kwargs):
id = kwargs.get('id')
name = kwargs.get('name')
if id is not None:
return Ingredient.objects.get(pk=id)
if name is not None:
return Ingredient.objects.get(name=name)
return None
Now, with the code in place, we can query for single objects. Now, with the code in place, we can query for single objects.