Added latestPosts schema to graphql endpoint.

Added latestPosts schema for getting 5 latest posts for the homepage.

Author: Moskas

blog/schema.py

@@ -29,16 +29,15 @@ class Query(graphene.ObjectType):
     all_posts = graphene.List(PostType)
     all_tags = graphene.List(TagType)
     all_authors = graphene.List(AuthorType)
+    latest_posts = graphene.List(PostType)
     author_by_username = graphene.Field(AuthorType, username=graphene.String())
     post_by_slug = graphene.Field(PostType, slug=graphene.String())
     posts_by_author = graphene.List(PostType, username=graphene.String())
     posts_by_tag = graphene.List(PostType, tag=graphene.String())
     posts_by_id = graphene.List(PostType, id=graphene.ID())
 
-    def resolve_all_posts(root, info):
-        return (
-            models.Post.objects.prefetch_related("tags").select_related("author").all()
-        )
+    def resolve_all_posts(root, info, order_by=None):
+        return models.Post.objects.prefetch_related("tags").select_related("author").all()
 
     def resolve_all_tags(root, info):
         return models.Tag.objects.all()
@@ -75,5 +74,8 @@ def resolve_posts_by_tag(root, info, tag):
     def resolve_posts_by_id(root, info, id):
         return models.Post.objects.filter(id=id)
 
+    def resolve_latest_posts(root, info):
+        return models.Post.objects.prefetch_related("tags").select_related("author").order_by("-id")[:5]
+
 
 schema = graphene.Schema(query=Query)