add method and route to display posts

src/main.rs

@@ -74,10 +74,37 @@ fn index(page: Option<i8>) -> Template {
     Template::render("index", context)
 }
 
+fn get_post(id_number: i32) -> Post {
+    use schema::posts::dsl::*;
+
+    let connection = establish_connection();
+    let post = posts.find(id_number).first(&connection);
+
+    post.unwrap()
+}
+
+#[get("/posts/<title>")]
+fn show_post(title: String) -> Template {
+    let mut context = Context::new();
+
+    let title_splited: Vec<&str> = title.split('-').collect();
+    let id = title_splited.last().unwrap().parse().unwrap();
+
+    let mut rng = rand::thread_rng();
+    let title_fmt = TITLES[rng.gen_range(0, TITLES.len())];
+    let title = str::replace(title_fmt, "{}", "CódigoComentado");
+
+    let post = get_post(id);
+
+    context.insert("title", &title);
+    context.insert("post", &post);
+    Template::render("posts", context)
+}
+
 fn main() {
     rocket::ignite()
         .attach(Template::fairing())
-        .mount("/", routes![index])
+        .mount("/", routes![index, show_post])
         .mount("/static", StaticFiles::from("static"))
         .launch();
 }