blog: link to older/newer posts

Fix Issue 70 of the amFOSS website

activity/schema.py

@@ -75,6 +75,15 @@ def resolve_tags(self):
     def resolve_cover(self, info):
         return self['cover']
 
+class PaginationObj(graphene.ObjectType):
+    previous = graphene.String()
+    next = graphene.String()
+
+    def resolve_previous(self, info):
+        return Blog.objects.values().filter(featured=True,date__lt=self['date']).last()['slug']
+
+    def resolve_next(self, info):
+        return Blog.objects.values().filter(featured=True,date__lt=self['date']).first()['slug']
 
 class BlogObj(graphene.ObjectType):
     title = graphene.String(required=True)
@@ -88,6 +97,7 @@ class BlogObj(graphene.ObjectType):
     cover = graphene.String(required=True)
     category = graphene.Field(CategoryObj)
     collection = graphene.Field(CollectionTagObj)
+    pagination = graphene.Field(PaginationObj)
 
     def resolve_title(self, info):
         return self['title']
@@ -126,6 +136,9 @@ def resolve_collection(self, info):
         return Collection.objects.values().get(id=self['collection_id'])
 
 
+    def resolve_pagination(self,info):
+        return self
+
 class AchievementObj(graphene.ObjectType):
     title = graphene.String(required=True)
     user = graphene.Field(UserBasicObj)