add layouts to the _examples/view/embedding-templates-into-app

Former-commit-id: 15085969eb5cad90022b249782e0620d4f5d267a

_examples/view/embedding-templates-into-app/main.go

@@ -6,23 +6,57 @@ import (
 
 func main() {
 	app := iris.New()
+
+	tmpl := iris.HTML("./templates", ".html")
+	tmpl.Layout("layouts/layout.html")
+	tmpl.AddFunc("greet", func(s string) string {
+		return "Greetings " + s + "!"
+	})
+
 	// $ go get -u github.com/jteeuwen/go-bindata/...
 	// $ go-bindata ./templates/...
 	// $ go build
 	// $ ./embedding-templates-into-app
-	// html files are not used, you can delete the folder and run the example
-	app.RegisterView(iris.HTML("./templates", ".html").Binary(Asset, AssetNames))
-	app.Get("/", hi)
+	// html files are not used, you can delete the folder and run the example.
+	tmpl.Binary(Asset, AssetNames) // <-- IMPORTANT
+
+	app.RegisterView(tmpl)
+
+	app.Get("/", func(ctx iris.Context) {
+		if err := ctx.View("page1.html"); err != nil {
+			ctx.StatusCode(iris.StatusInternalServerError)
+			ctx.Writef(err.Error())
+		}
+	})
+
+	// remove the layout for a specific route
+	app.Get("/nolayout", func(ctx iris.Context) {
+		ctx.ViewLayout(iris.NoLayout)
+		if err := ctx.View("page1.html"); err != nil {
+			ctx.StatusCode(iris.StatusInternalServerError)
+			ctx.Writef(err.Error())
+		}
+	})
+
+	// set a layout for a party, .Layout should be BEFORE any Get or other Handle party's method
+	my := app.Party("/my").Layout("layouts/mylayout.html")
+	{ // both of these will use the layouts/mylayout.html as their layout.
+		my.Get("/", func(ctx iris.Context) {
+			ctx.View("page1.html")
+		})
+		my.Get("/other", func(ctx iris.Context) {
+			ctx.View("page1.html")
+		})
+	}
 
 	// http://localhost:8080
+	// http://localhost:8080/nolayout
+	// http://localhost:8080/my
+	// http://localhost:8080/my/other
 	app.Run(iris.Addr(":8080"))
 }
 
-type page struct {
-	Title, Name string
-}
-
-func hi(ctx iris.Context) {
-	ctx.ViewData("", page{Title: "Hi Page", Name: "iris"})
-	ctx.View("hi.html")
-}
+// Note for new Gophers:
+// `go build` is used instead of `go run main.go` as the example comments says
+// otherwise you will get compile errors, this is a Go thing;
+// because you have multiple files in the `package main`.