new laptop setup

src/database.rs

@@ -0,0 +1,12 @@
+use diesel::pg::PgConnection;
+use diesel::prelude::*;
+use dotenv::dotenv;
+use std::env;
+
+pub fn establish_connection() -> PgConnection {
+    dotenv().ok();
+
+    let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
+    PgConnection::establish(&database_url)
+        .unwrap_or_else(|_| panic!("Error connecting to database {}", database_url))
+}