Adds basic vuejs functionnality, implements RecipeCategory custom field

cookbook/src/bin/write_recipe.rs

@@ -4,11 +4,12 @@ extern crate diesel;
 use std::io::{Read, stdin};
 use diesel::SqliteConnection;
 use self::cookbook::*;
-use self::models::NewRecipe;
+use self::models::{NewRecipe, fields::RecipeCategory};
 
 struct CreateRecipe<'a> {
     connection: &'a SqliteConnection,
     title: &'a str,
+    category: Option<RecipeCategory>,
     ingredients: String,
 }
 
@@ -17,6 +18,7 @@ impl<'a> CreateRecipe<'a> {
         CreateRecipe{
             connection: conn,
             title: "New recipe",
+            category: None,
             ingredients: String::new(),
         }
     }