add post example

README.md

@@ -76,11 +76,19 @@ class Blog(BaseModel):
     comments: list[Comment] = []
     async def resolve_comments(self):
         return await query_comments(self.id)
+
+    comment_count: int = 0
+    def post_comment_count(self):
+        return len(self.comments)
 
 class MyBlogSite(BaseModel):
     blogs: list[Blog]
     name: str
 
+    comment_count: int = 0
+    def post_comment_count(self):
+        return sum([b.comment_count for b in self.blogs])
+
 async def single():
     blog = Blog(id=1, title='what is pydantic-resolve')
     blog = await Resolver().resolve(blog)
@@ -128,7 +136,8 @@ output of my_blog_site:
                     "id": 2,
                     "content": "i dont understand"
                 }
-            ]
+            ],
+            "comment_count": 2
         },
         {
             "id": 2,
@@ -142,9 +151,11 @@ output of my_blog_site:
                     "id": 4,
                     "content": "wow!"
                 }
-            ]
+            ],
+            "comment_count": 2
         }
-    ]
+    ],
+    "comment_count": 4
 }
 ```
 
@@ -183,10 +194,18 @@ class Blog(BaseModel):
     comments: list[Comment] = []
     def resolve_comments(self, loader=LoaderDepend(blog_to_comments_loader)):
         return loader.load(self.id)
+
+    comment_count: int = 0
+    def post_comment_count(self):
+        return len(self.comments)
 
 class MyBlogSite(BaseModel):
     blogs: list[Blog]
 
+    comment_count: int = 0
+    def post_comment_count(self):
+        return sum([b.comment_count for b in self.blogs])
+
 async def batch():
     my_blog_site = MyBlogSite(
         blogs = [

examples/0_demo.py

@@ -24,10 +24,18 @@ class Blog(BaseModel):
     comments: list[Comment] = []
     async def resolve_comments(self):
         return await query_comments(self.id)
+
+    comment_count: int = 0
+    def post_comment_count(self):
+        return len(self.comments)
 
 class MyBlogSite(BaseModel):
     blogs: list[Blog]
 
+    comment_count: int = 0
+    def post_comment_count(self):
+        return sum([b.comment_count for b in self.blogs])
+
 
 async def single():
     blog = Blog(id=1, title='what is pydantic-resolve')

examples/0_demo_loader.py

@@ -25,10 +25,18 @@ class Blog(BaseModel):
     comments: list[Comment] = []
     def resolve_comments(self, loader=LoaderDepend(blog_to_comments_loader)):
         return loader.load(self.id)
+
+    comment_count: int = 0
+    def post_comment_count(self):
+        return len(self.comments)
 
 class MyBlogSite(BaseModel):
     blogs: list[Blog]
 
+    comment_count: int = 0
+    def post_comment_count(self):
+        return sum([b.comment_count for b in self.blogs])
+
 async def batch():
     my_blog_site = MyBlogSite(
         blogs = [