From 52025bf75fa63253ddebe560b949062c05ddeb5c Mon Sep 17 00:00:00 2001
From: Sunli <scott_s829@163.com>
Date: Mon, 2 May 2022 16:20:45 +0800
Subject: [PATCH] Update connection type

---
 examples                                |  2 +-
 src/types/connection/connection_type.rs | 49 +++++++++++++------------
 src/types/connection/edge.rs            | 16 ++++----
 src/types/connection/mod.rs             |  4 +-
 4 files changed, 37 insertions(+), 34 deletions(-)

diff --git a/examples b/examples
index 22bc2e58..d359d0ea 160000
--- a/examples
+++ b/examples
@@ -1 +1 @@
-Subproject commit 22bc2e58689a2d5d76fbea687f008d134d45e660
+Subproject commit d359d0ea3116326daf753f08233219530b8ec10b
diff --git a/src/types/connection/connection_type.rs b/src/types/connection/connection_type.rs
index 1be0f889..cf831f2d 100644
--- a/src/types/connection/connection_type.rs
+++ b/src/types/connection/connection_type.rs
@@ -1,7 +1,10 @@
 use std::{borrow::Cow, marker::PhantomData};
 
 use crate::{
-    connection::{edge::Edge, ConnectionNameType, EdgeNameType, PageInfo},
+    connection::{
+        edge::Edge, ConnectionNameType, DefaultConnectionName, DefaultEdgeName, EdgeNameType,
+        PageInfo,
+    },
     types::connection::{CursorType, EmptyFields},
     Object, ObjectType, OutputType, TypeName,
 };
@@ -10,24 +13,24 @@ use crate::{
 ///
 /// Connection is the result of a query for `connection::query`.
 pub struct Connection<
-    Name,
-    EdgeName,
     Cursor,
     Node,
     ConnectionFields = EmptyFields,
     EdgeFields = EmptyFields,
+    Name = DefaultConnectionName,
+    EdgeName = DefaultEdgeName,
 > where
-    Name: ConnectionNameType,
-    EdgeName: EdgeNameType,
     Cursor: CursorType + Send + Sync,
     Node: OutputType,
     ConnectionFields: ObjectType,
     EdgeFields: ObjectType,
+    Name: ConnectionNameType,
+    EdgeName: EdgeNameType,
 {
     _mark1: PhantomData<Name>,
     _mark2: PhantomData<EdgeName>,
     /// All edges of the current page.
-    pub edges: Vec<Edge<EdgeName, Cursor, Node, EdgeFields>>,
+    pub edges: Vec<Edge<Cursor, Node, EdgeFields, EdgeName>>,
     /// Additional fields for connection object.
     pub additional_fields: ConnectionFields,
     /// If `true` means has previous page.
@@ -36,14 +39,14 @@ pub struct Connection<
     pub has_next_page: bool,
 }
 
-impl<Name, EdgeName, Cursor, Node, EdgeFields>
-    Connection<Name, EdgeName, Cursor, Node, EmptyFields, EdgeFields>
+impl<Cursor, Node, EdgeFields, Name, EdgeName>
+    Connection<Cursor, Node, EmptyFields, EdgeFields, Name, EdgeName>
 where
-    Name: ConnectionNameType,
-    EdgeName: EdgeNameType,
     Cursor: CursorType + Send + Sync,
     Node: OutputType,
     EdgeFields: ObjectType,
+    Name: ConnectionNameType,
+    EdgeName: EdgeNameType,
 {
     /// Create a new connection.
     #[inline]
@@ -59,15 +62,15 @@ where
     }
 }
 
-impl<Name, EdgeName, Cursor, Node, ConnectionFields, EdgeFields>
-    Connection<Name, EdgeName, Cursor, Node, ConnectionFields, EdgeFields>
+impl<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName>
+    Connection<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName>
 where
-    Name: ConnectionNameType,
-    EdgeName: EdgeNameType,
     Cursor: CursorType + Send + Sync,
     Node: OutputType,
     ConnectionFields: ObjectType,
     EdgeFields: ObjectType,
+    Name: ConnectionNameType,
+    EdgeName: EdgeNameType,
 {
     /// Create a new connection, it can have some additional fields.
     #[inline]
@@ -88,15 +91,15 @@ where
 }
 
 #[Object(internal, name_type)]
-impl<Name, EdgeName, Cursor, Node, ConnectionFields, EdgeFields>
-    Connection<Name, EdgeName, Cursor, Node, ConnectionFields, EdgeFields>
+impl<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName>
+    Connection<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName>
 where
-    Name: ConnectionNameType,
-    EdgeName: EdgeNameType,
     Cursor: CursorType + Send + Sync,
     Node: OutputType,
     ConnectionFields: ObjectType,
     EdgeFields: ObjectType,
+    Name: ConnectionNameType,
+    EdgeName: EdgeNameType,
 {
     /// Information to aid in pagination.
     async fn page_info(&self) -> PageInfo {
@@ -110,7 +113,7 @@ where
 
     /// A list of edges.
     #[inline]
-    async fn edges(&self) -> &[Edge<EdgeName, Cursor, Node, EdgeFields>] {
+    async fn edges(&self) -> &[Edge<Cursor, Node, EdgeFields, EdgeName>] {
         &self.edges
     }
 
@@ -121,15 +124,15 @@ where
     }
 }
 
-impl<Name, EdgeName, Cursor, Node, ConnectionFields, EdgeFields> TypeName
-    for Connection<Name, EdgeName, Cursor, Node, ConnectionFields, EdgeFields>
+impl<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName> TypeName
+    for Connection<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName>
 where
-    Name: ConnectionNameType,
-    EdgeName: EdgeNameType,
     Cursor: CursorType + Send + Sync,
     Node: OutputType,
     ConnectionFields: ObjectType,
     EdgeFields: ObjectType,
+    Name: ConnectionNameType,
+    EdgeName: EdgeNameType,
 {
     #[inline]
     fn type_name() -> Cow<'static, str> {
diff --git a/src/types/connection/edge.rs b/src/types/connection/edge.rs
index 59b08a7d..6ed9df31 100644
--- a/src/types/connection/edge.rs
+++ b/src/types/connection/edge.rs
@@ -1,7 +1,7 @@
 use std::{borrow::Cow, marker::PhantomData};
 
 use crate::{
-    connection::EmptyFields,
+    connection::{DefaultEdgeName, EmptyFields},
     types::connection::{CursorType, EdgeNameType},
     InputValueError, InputValueResult, ObjectType, OutputType, Scalar, ScalarType, SimpleObject,
     TypeName, Value,
@@ -32,12 +32,12 @@ impl<T: CursorType + Send + Sync> ScalarType for CursorScalar<T> {
 /// An edge in a connection.
 #[derive(SimpleObject)]
 #[graphql(internal, name_type)]
-pub struct Edge<Name, Cursor, Node, EdgeFields>
+pub struct Edge<Cursor, Node, EdgeFields, Name = DefaultEdgeName>
 where
-    Name: EdgeNameType,
     Cursor: CursorType + Send + Sync,
     Node: OutputType,
     EdgeFields: ObjectType,
+    Name: EdgeNameType,
 {
     #[graphql(skip)]
     _mark: PhantomData<Name>,
@@ -49,12 +49,12 @@ where
     pub(crate) additional_fields: EdgeFields,
 }
 
-impl<Name, Cursor, Node, EdgeFields> TypeName for Edge<Name, Cursor, Node, EdgeFields>
+impl<Cursor, Node, EdgeFields, Name> TypeName for Edge<Cursor, Node, EdgeFields, Name>
 where
-    Name: EdgeNameType,
     Cursor: CursorType + Send + Sync,
     Node: OutputType,
     EdgeFields: ObjectType,
+    Name: EdgeNameType,
 {
     #[inline]
     fn type_name() -> Cow<'static, str> {
@@ -62,7 +62,7 @@ where
     }
 }
 
-impl<Name, Cursor, Node, EdgeFields> Edge<Name, Cursor, Node, EdgeFields>
+impl<Cursor, Node, EdgeFields, Name> Edge<Cursor, Node, EdgeFields, Name>
 where
     Name: EdgeNameType,
     Cursor: CursorType + Send + Sync,
@@ -85,11 +85,11 @@ where
     }
 }
 
-impl<Name, Cursor, Node> Edge<Name, Cursor, Node, EmptyFields>
+impl<Cursor, Node, Name> Edge<Cursor, Node, EmptyFields, Name>
 where
-    Name: EdgeNameType,
     Cursor: CursorType + Send + Sync,
     Node: OutputType,
+    Name: EdgeNameType,
 {
     /// Create a new edge.
     #[inline]
diff --git a/src/types/connection/mod.rs b/src/types/connection/mod.rs
index bfebd798..718b39e0 100644
--- a/src/types/connection/mod.rs
+++ b/src/types/connection/mod.rs
@@ -194,7 +194,7 @@ pub async fn query<Name, EdgeName, Cursor, Node, ConnectionFields, EdgeFields, F
     first: Option<i32>,
     last: Option<i32>,
     f: F,
-) -> Result<Connection<Name, EdgeName, Cursor, Node, ConnectionFields, EdgeFields>>
+) -> Result<Connection<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName>>
 where
     Name: ConnectionNameType,
     EdgeName: EdgeNameType,
@@ -205,7 +205,7 @@ where
     EdgeFields: ObjectType,
     F: FnOnce(Option<Cursor>, Option<Cursor>, Option<usize>, Option<usize>) -> R,
     R: Future<
-        Output = Result<Connection<Name, EdgeName, Cursor, Node, ConnectionFields, EdgeFields>, E>,
+        Output = Result<Connection<Cursor, Node, ConnectionFields, EdgeFields, Name, EdgeName>, E>,
     >,
     E: Into<Error>,
 {