Port to PostgreSQL

Author: BruceL33t

.env

@@ -1 +1 @@
-DATABASE_URL=todo.db
+DATABASE_URL=postgres://postgres:YOURPASS@localhost/juniper-example-todo-backend

Cargo.lock

@@ -6,9 +6,9 @@ authors = ["Magnus Hallin <[email protected]>"]
 [dependencies]
 juniper = { version = "0.8.0", features = ["iron-handlers"] }
 
-diesel = { version = "0.13.0", features = ["sqlite"] }
-diesel_codegen = { version = "0.13.0", features = ["sqlite"] }
-dotenv = "0.8"
+diesel = { version = "0.16.0", features = ["postgres"] }
+diesel_codegen = { version = "0.16.0", features = ["postgres"] }
+dotenv = "0.9.0"
 
 iron = "0.5.1"
 router = "0.5.1"

Cargo.toml

@@ -1,15 +1,15 @@
 use diesel::prelude::*;
-use diesel::sqlite::SqliteConnection;
+use diesel::pg::PgConnection;
 use dotenv::dotenv;
 use std::env;
 
-pub fn establish_connection() -> SqliteConnection {
+pub fn establish_connection() -> PgConnection {
     dotenv().expect("No .env file found");
 
     let database_url = env::var("DATABASE_URL")
         .expect("DATABASE_URL must be set, please update the .env file accordingly");
 
-    SqliteConnection::establish(&database_url)
+    PgConnection::establish(&database_url)
         .expect(&format!("Could not create SQLite database connection to: {}", database_url))
 }
 

src/db.rs

@@ -1,13 +1,13 @@
 use diesel;
 use diesel::prelude::*;
-use diesel::sqlite::SqliteConnection;
+use diesel::pg::PgConnection;
 use juniper::{Context as JuniperContext, FieldResult, ResultExt};
 
 use models::{NewTodo, Todo};
 
 
 pub struct Context {
-    pub connection: SqliteConnection,
+    pub connection: PgConnection,
 }
 
 impl JuniperContext for Context {}