Tidy up handlebars example.

examples/handlebars_templates/src/main.rs

@@ -10,14 +10,16 @@ extern crate rocket;
 use rocket::Request;
 use rocket::response::Redirect;
 use rocket_contrib::{Template, handlebars};
+
 use handlebars::{Helper, Handlebars, RenderContext, RenderError, JsonRender};
 
 #[derive(Serialize)]
 struct TemplateContext {
-    name: String,
-    items: Vec<String>,
-    title: String,
-    parent: String,
+    title: &'static str,
+    name: Option<String>,
+    items: Vec<&'static str>,
+    // This key tells handlebars which template is the parent.
+    parent: &'static str,
 }
 
 #[get("/")]
@@ -27,30 +29,22 @@ fn index() -> Redirect {
 
 #[get("/hello/<name>")]
 fn hello(name: String) -> Template {
-    let page = "index".to_string();
-    let title = format!("Rocket Example - {}", page).to_string();
-    let context = TemplateContext {
-        name: name,
-        items: vec!["One".into(), "Two".into(), "Three".into()],
-        parent: "layout".to_string(),
-        title: title,
-    };
-
-    Template::render(page, &context)
+    Template::render("index", &TemplateContext {
+        title: "Hello",
+        name: Some(name),
+        items: vec!["One", "Two", "Three"],
+        parent: "layout",
+    })
 }
 
 #[get("/about")]
 fn about() -> Template {
-    let page = "about".to_string();
-    let title = format!("Rocket Example - {}", page).to_string();
-    let context = TemplateContext {
-        name: "Unknown".to_string(),
-        items: vec!["One".into(), "Two".into(), "Three".into()],
-        parent: "layout".to_string(),
-        title: title,
-    };
-
-    Template::render(page, &context)
+    Template::render("about", &TemplateContext {
+        title: "About",
+        name: None,
+        items: vec!["Four", "Five", "Six"],
+        parent: "layout",
+    })
 }
 
 #[catch(404)]
@@ -60,9 +54,7 @@ fn not_found(req: &Request) -> Template {
     Template::render("error/404", &map)
 }
 
-type HelperResult = Result<(), RenderError>;
-
-fn wow_helper(h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> HelperResult {
+fn wow_helper(h: &Helper, _: &Handlebars, rc: &mut RenderContext) -> Result<(), RenderError> {
     if let Some(param) = h.param(0) {
         write!(rc.writer, "<b><i>{}</i></b>", param.value().render())?;
     }

examples/handlebars_templates/src/tests.rs

@@ -1,4 +1,5 @@
-use super::rocket;
+use super::{rocket, TemplateContext};
+
 use rocket::local::{Client, LocalResponse};
 use rocket::http::Method::*;
 use rocket::http::Status;
@@ -40,16 +41,17 @@ fn test_root() {
 #[test]
 fn test_name() {
     // Check that the /hello/<name> route works.
-    dispatch!(Get, "/hello/Jack", |_client: &Client, mut response: LocalResponse| {
-        let _context = super::TemplateContext {
-            name: "Jack".into(),
-            items: vec!["One".into(), "Two".into(), "Three".into()],
-            title: "hello".to_string(),
-            parent: "layout".to_string(),
+    dispatch!(Get, "/hello/Jack%20Daniels", |client: &Client, mut response: LocalResponse| {
+        let context = TemplateContext {
+            title: "Hello",
+            name: Some("Jack Daniels".into()),
+            items: vec!["One", "Two", "Three"],
+            parent: "layout",
         };
 
+        let expected = Template::show(client.rocket(), "index", &context).unwrap();
         assert_eq!(response.status(), Status::Ok);
-        assert!(response.body_string().unwrap().contains("Jack"));
+        assert_eq!(response.body_string(), Some(expected));
     });
 }
 

examples/handlebars_templates/templates/about.hbs

@@ -1,7 +1,12 @@
 {{#*inline "page"}}
 
 <section id="about">
-  <h1>Here's anoter page!</h1>
+  <h1>Here's another page!</h1>
+  <ul>
+    {{#each items}}
+      <li>{{ this }}</li>
+    {{/each}}
+  </ul>
 </section>
 
 {{/inline}}

examples/handlebars_templates/templates/index.hbs

@@ -1,11 +1,11 @@
 {{#*inline "page"}}
 
 <section id="hello">
-  <h1>Hi {{name}}</h1>
+  <h1>Hi {{ name }}!</h1>
   <h3>Here are your items:</h3>
   <ul>
     {{#each items}}
-      <li>{{this}}</li>
+      <li>{{ this }}</li>
     {{/each}}
   </ul>
 </section>

examples/handlebars_templates/templates/layout.hbs

@@ -1,7 +1,7 @@
 <!doctype html>
 <html>
   <head>
-    <title>{{title}}</title>
+    <title>Rocket Example - {{ title }}</title>
   </head>
   <body>
     {{> nav}}

examples/handlebars_templates/templates/nav.hbs

@@ -1 +1 @@
-<a href="/about">About</a>
+<a href="/hello/Unknown">Hello</a> | <a href="/about">About</a>