sept11

lang.json

@@ -1,3 +1,11 @@
 {
-    "lang" : "json"
+    "lang" : {
+        "json" : "object",
+        "test" : ["a", "b", "c"],
+        "title" : "JSON"
+    },
+
+    "title": {
+        "en": "Hello Json"
+    }
 }

src/build_rocket/config.rs

@@ -1,32 +1,73 @@
+
 use std::fs::{ File };
-use std::io;
-use std::io::prelude::*;
 
 use rocket_dyn_templates::tera::Value;
+use rocket_dyn_templates::tera::Map;
+use rocket_dyn_templates::tera::Context;
+use rocket_dyn_templates::tera::Error;
+
+use serde::Serialize;
 
 // Define File for language handling
 pub const LANG_FILE : &str ="./lang.json";
 
-// Store JSON Value in 'static variable
+// Store Value in static variable initialized at runtime
 lazy_static! {
-    #[derive(Debug)]
-    pub static ref LANG: bool = init_lang();
+
+    #[derive(Serialize, Debug)]
+    pub static ref LANG : Result<Context, Error> = init_lang();
+}
+
+// Convert Map to Context
+pub fn init_lang() -> Result<Context, Error> {
+    let map = &json_to_map();
+    let context : Result<Context, Error> = Context::from_value(Value::Object(map.clone().unwrap()));
+
+    match context {
+        Ok(context) => Ok(context)  ,
+        Err(error) => Err(Error::msg(error)),
+    }
 }
 
 
-// fn file_to_string() -> io::Result<String> {
-//     let mut f = File::open(LANG_FILE)?;
-//     let mut buffer = String::new();
-//     f.read_to_string(&mut buffer)?;
-//     Ok(buffer)
-// }
-
-// pub fn init_lang() -> Value {
-//     serde_json::from_str(&file_to_string().unwrap()).expect("unable to convert to JSON")
-// }
-
-pub fn init_lang() -> bool {
-    let f = File::open(LANG_FILE).expect("unable to open file");
-    let json : Value = serde_json::from_reader(f).expect("file shoulde be JSON");
-    json.is_object()
+// Convert JSON from file to Map<String, Value> structure
+fn json_to_map()-> Option<Map<String, Value>> {
+    let file = File::open(LANG_FILE).expect("unable to open file");
+    let json : Value = serde_json::from_reader(file).expect("file should be JSON syntax");
+    let value = json["lang"].as_object();
+    match value {
+        None => None,
+        Some(value) => Some(value.clone()),
     }
+}
+
+pub fn all_to_map() -> Option<Map<String, Value>> {
+    let file = File::open(LANG_FILE).expect("unable to open file");
+    let json : Value = serde_json::from_reader(file).expect("file should be JSON syntax");
+
+    let object = json.as_object();
+
+    match object {
+        None => None,
+        Some(object) => Some(object.clone()),
+    }
+}
+
+pub fn debug() {
+    let map = &all_to_map();
+
+    println!("{:#?}", map );
+}
+
+pub fn get_key() {
+
+    let map = &all_to_map().unwrap();
+
+    let keys = map.keys();
+
+    for key in keys {
+
+        println!("{:?}", key );
+    }
+}
+

src/build_rocket/get.rs

@@ -140,7 +140,11 @@ use crate::build_rocket::{ templates, config };
     #[get("/test")]
     // Render Template Responder
     pub fn test() -> Template {
-            println!("{}", &config::init_lang());
-        Template::render("test_extend", templates::return_json())
+            config::debug();
+
+            // that's the one
+            config::get_key();
+
+        Template::render("test_extend", &config::LANG )
     }
     

src/build_rocket/templates.rs

@@ -1,30 +1,29 @@
+use rocket_dyn_templates::tera::Context;
+
 // Serde Data Model conversion
 use rocket::serde::{ Serialize };
-use serde_json::json;
-
-use std::error::Error;
-
-use crate ::build_rocket::{ config::LANG };
 
+use crate::build_rocket::{ config };
 
 // Implement serde Serialize to create context
 #[derive(Serialize)]
-pub struct MyStruct {
-    pub title : String,
+pub struct Tpl {
     pub lang : String,
-    pub contents: String,
 }
 
-pub fn return_json() -> Result<(), Box<Error>> {
-    let mystruct = MyStruct {
-        title : "Test".to_owned(),
-        lang: "English".to_owned(),
-        contents: String::from("Those are the contents"),
-    };
-    let v = serde_json::to_value(mystruct).unwrap();
 
-    Ok(())
 
+
+pub fn print_value() {
+    let lang : &Context = &config::init_lang().unwrap();
+    let value = lang.get("json").unwrap();
+    println!("Value = {:#?}", value);
+}
+
+pub fn print_object() {
+    let object = &config::init_lang().unwrap();
+
+    println!("Context = {:#?}", object);
 }
 
 

templates/base.html.tera

@@ -2,7 +2,7 @@
 <html>
     <head>
         <meta charset="utf-8" />
-        <title>{{ title }}</title>
+        <title>{{ lang.title }}</title>
     </head>
     <body>
         {%include "test_include" %}