From 7aa2d1f9d50c98efdd8a8a96e4d86629114b69f7 Mon Sep 17 00:00:00 2001
From: "Gerasimos (Makis) Maropoulos" <kataras2006@hotmail.com>
Date: Tue, 5 Jan 2021 18:16:32 +0200
Subject: [PATCH] make versioning.Group a Party compatible by using a type
 alias on its embedded field

was reported as missing of the a Party method, the type alias is a good hack to solve that
---
 _examples/routing/versioning/main.go | 11 +++++++++++
 versioning/group.go                  | 11 ++++++++---
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/_examples/routing/versioning/main.go b/_examples/routing/versioning/main.go
index 3502173f..f234c9af 100644
--- a/_examples/routing/versioning/main.go
+++ b/_examples/routing/versioning/main.go
@@ -67,6 +67,10 @@ func examplePerParty(app *iris.Application) {
 	usersAPIV2.Post("/", func(ctx iris.Context) {
 		ctx.Writef("v2 resource: /api/users post handler")
 	})
+
+	// version 3, pass it as a common iris.Party.
+	usersAPIV3 := versioning.NewGroup(usersAPI, ">= 3, < 4")
+	registerAPIV3(usersAPIV3)
 }
 
 func catsVersionExactly1Handler(ctx iris.Context) {
@@ -76,3 +80,10 @@ func catsVersionExactly1Handler(ctx iris.Context) {
 func catsV2Handler(ctx iris.Context) {
 	ctx.Writef("v2 resource: /api/cats handler")
 }
+
+func registerAPIV3(p iris.Party) {
+	p.Get("/", func(ctx iris.Context) {
+		ctx.Writef("v3 resource: /api/users handler")
+	})
+	// [...]
+}
diff --git a/versioning/group.go b/versioning/group.go
index 9e7f0e06..d74d96c1 100644
--- a/versioning/group.go
+++ b/versioning/group.go
@@ -5,10 +5,15 @@ import (
 	"github.com/kataras/iris/v12/core/router"
 )
 
+// API is a type alias of router.Party.
+// This is required in order for a Group instance
+// to implement the Party interface without field conflict.
+type API = router.Party
+
 // Group is a group of version-based routes.
 // One version per one or more routes.
 type Group struct {
-	router.Party
+	API
 
 	// Information not currently in-use.
 	version     string
@@ -32,7 +37,7 @@ func NewGroup(r router.Party, version string) *Group {
 	r.UseOnce(Handler(version)) // this is required in order to not populate this middleware to the next group.
 
 	return &Group{
-		Party:   r,
+		API:     r,
 		version: version,
 	}
 }
@@ -43,7 +48,7 @@ func (g *Group) Deprecated(options DeprecationOptions) *Group {
 	// store it for future use, e.g. collect all deprecated APIs and notify the developer.
 	g.deprecation = options
 
-	g.Party.UseOnce(func(ctx *context.Context) {
+	g.API.UseOnce(func(ctx *context.Context) {
 		WriteDeprecated(ctx, options)
 		ctx.Next()
 	})