now the context og the templates is unificated in a single file

src/main.rs

@@ -1,5 +1,6 @@
 #![feature(proc_macro_hygiene, decl_macro)]
 
+pub mod misc;
 pub mod models;
 pub mod schema;
 
@@ -9,7 +10,6 @@ extern crate rocket;
 extern crate diesel;
 extern crate comrak;
 extern crate dotenv;
-extern crate rand;
 extern crate rocket_contrib;
 extern crate tera;
 
@@ -19,25 +19,13 @@ use comrak::{markdown_to_html, ComrakOptions};
 use diesel::pg::PgConnection;
 use diesel::result::Error;
 use dotenv::dotenv;
-use rand::Rng;
+use misc::get_context;
 use rocket::Request;
 use rocket_contrib::serve::StaticFiles;
 use rocket_contrib::templates::Template;
 use std::env;
 use std::vec::Vec;
-use tera::Context;
 
-const TITLES: [&str; 9] = [
-    "/* {} */",
-    "# {}",
-    "// {}",
-    "<!-- {} -->",
-    "{# {} #}",
-    "-- {}",
-    "--[[ {} --]]",
-    "; {}",
-    "% {}",
-];
 const MAX_POSTS_PER_PAGE: i64 = 20;
 
 fn establish_connection() -> PgConnection {
@@ -71,17 +59,12 @@ fn get_posts(page: i64) -> (Vec<Post>, i64) {
 fn index(page: Option<i8>) -> Template {
     let page = page.unwrap_or_else(|| 1);
 
-    let mut context = Context::new();
+    let mut context = get_context();
-
-    let mut rng = rand::thread_rng();
-    let title_fmt = TITLES[rng.gen_range(0, TITLES.len())];
-    let title = str::replace(title_fmt, "{}", "CódigoComentado");
 
     let (posts, n_posts) = get_posts(page as i64);
 
     let total_pages = (n_posts as f64 / MAX_POSTS_PER_PAGE as f64).ceil() as i64;
 
-    context.insert("title", &title);
     context.insert("posts", &posts);
     context.insert("total_pages", &total_pages);
     context.insert("actual_page", &page);
@@ -99,19 +82,13 @@ fn get_post(id_number: i32) -> Result<Post, Error> {
 
 #[get("/post/<title>")]
 fn show_post(title: String) -> Template {
-    let mut context = Context::new();
+    let mut context = get_context();
 
     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);
-
     match post {
         Ok(mut p) => {
             let content = markdown_to_html(&p.content, &ComrakOptions::default());
@@ -130,15 +107,10 @@ fn show_post(title: String) -> Template {
 
 #[catch(404)]
 fn not_found_404(req: &Request) -> Template {
-    let mut context = Context::new();
+    let mut context = get_context();
-
-    let mut rng = rand::thread_rng();
-    let title_fmt = TITLES[rng.gen_range(0, TITLES.len())];
-    let title = str::replace(title_fmt, "{}", "CódigoComentado");
 
     let uri = format!("{}", req.uri());
 
-    context.insert("title", &title);
     context.insert("url", &uri);
     Template::render("404", context)
 }

src/misc.rs

@@ -0,0 +1,28 @@
+extern crate rand;
+extern crate tera;
+
+use rand::Rng;
+use tera::Context;
+
+const TITLES: [&str; 9] = [
+    "/* {} */",
+    "# {}",
+    "// {}",
+    "<!-- {} -->",
+    "{# {} #}",
+    "-- {}",
+    "--[[ {} --]]",
+    "; {}",
+    "% {}",
+];
+
+pub fn get_context() -> Context {
+    let mut context = Context::new();
+
+    let mut rng = rand::thread_rng();
+    let title_fmt = TITLES[rng.gen_range(0, TITLES.len())];
+    let title = str::replace(title_fmt, "{}", "CódigoComentado");
+
+    context.insert("title", &title);
+    context
+}