Support set DATABASE_URL when create project (#364)

create-rust-app_cli/src/main.rs

@@ -257,6 +257,14 @@ fn create_project(
         }
     };
 
+    println!("Press Enter will use default backend database url as config");
+
+    let backend_database_url: String = Input::new()
+        .with_prompt(format!("{:?} url", backend_database))
+        .default("postgres://postgres:postgres@localhost/database".into())
+        .show_default(false)
+        .interact_text()?;
+
     // get the backend framework
     let backend_framework: BackendFramework = match framework {
         Some(framework) => framework,
@@ -474,7 +482,10 @@ fn create_project(
 
     let contents = std::fs::read_to_string(example_env_file)
         .expect("Error: Tried to read .env.example contents but an error occurred");
-    std::fs::write(env_file, contents)?;
+    std::fs::write(
+        env_file,
+        format!("{}DATABASE_URL={}", contents, backend_database_url),
+    )?;
     logger::add_file_msg(".env");
 
     logger::project_created_msg(install_config);

create-rust-app_cli/template/.env.example

@@ -1,5 +1,4 @@
 RUST_LOG=debug
 SECRET_KEY=secret
-DATABASE_URL=postgres://postgres:postgres@localhost/database
 RUST_BACKTRACE=1
 APP_URL=http://localhost:3000