From 3a085a025ae2676ab5758dd2e982c93c20ff54ee Mon Sep 17 00:00:00 2001
From: Max Hohlfeld <maxhohlfeld@posteo.de>
Date: Wed, 5 Feb 2025 09:21:12 +0100
Subject: [PATCH] refactor: add html content type to all template responses

---
 web/src/endpoints/area/get_edit.rs             |  5 ++---
 web/src/endpoints/area/get_new.rs              |  9 ++++-----
 web/src/endpoints/assignment/delete.rs         |  5 ++---
 web/src/endpoints/assignment/post_new.rs       |  5 ++---
 web/src/endpoints/availability/get_new.rs      |  8 ++++----
 web/src/endpoints/availability/get_overview.rs |  4 ++--
 web/src/endpoints/availability/get_update.rs   |  5 ++---
 web/src/endpoints/events/get_edit.rs           |  9 +++------
 web/src/endpoints/events/get_new.rs            |  9 ++++-----
 web/src/endpoints/events/get_plan.rs           |  6 +++---
 web/src/endpoints/export/get_availability.rs   |  6 +++---
 web/src/endpoints/imprint.rs                   |  6 +++---
 web/src/endpoints/location/get_edit.rs         |  5 ++---
 web/src/endpoints/location/get_new.rs          |  7 +++----
 web/src/endpoints/location/get_overview.rs     |  6 +++---
 web/src/endpoints/user/get_changepassword.rs   |  9 ++++++---
 web/src/endpoints/user/get_edit.rs             |  5 ++---
 web/src/endpoints/user/get_login.rs            |  4 ++--
 web/src/endpoints/user/get_new.rs              |  7 +++----
 web/src/endpoints/user/get_overview.rs         |  6 +++---
 web/src/endpoints/user/get_profile.rs          |  6 +++---
 web/src/endpoints/user/get_register.rs         |  8 +++++---
 web/src/endpoints/user/get_reset.rs            |  9 ++++++---
 web/src/endpoints/vehicle/get_edit.rs          |  5 ++---
 web/src/endpoints/vehicle/get_new.rs           |  7 +++----
 web/src/endpoints/vehicle/get_overview.rs      | 18 ++++++++++++------
 web/src/endpoints/vehicle_assignment/delete.rs |  8 +++++---
 .../endpoints/vehicle_assignment/post_new.rs   | 11 +++++++----
 web/src/utils/mod.rs                           |  3 +++
 web/src/utils/template_response_trait.rs       | 18 ++++++++++++++++++
 30 files changed, 122 insertions(+), 97 deletions(-)
 create mode 100644 web/src/utils/template_response_trait.rs

diff --git a/web/src/endpoints/area/get_edit.rs b/web/src/endpoints/area/get_edit.rs
index 0a4ab168..55e1b685 100644
--- a/web/src/endpoints/area/get_edit.rs
+++ b/web/src/endpoints/area/get_edit.rs
@@ -1,11 +1,10 @@
 use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
 use sqlx::PgPool;
 
 use crate::{
     endpoints::{area::NewOrEditAreaTemplate, IdPath},
     models::{Area, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[actix_web::get("/area/edit/{id}")]
@@ -24,7 +23,7 @@ async fn get(
             area: Some(area_in_db),
         };
 
-        Ok(HttpResponse::Ok().body(template.render()?))
+        Ok(template.to_response()?)
     } else {
         Ok(HttpResponse::NotFound().finish())
     }
diff --git a/web/src/endpoints/area/get_new.rs b/web/src/endpoints/area/get_new.rs
index c7714f9b..e52dae39 100644
--- a/web/src/endpoints/area/get_new.rs
+++ b/web/src/endpoints/area/get_new.rs
@@ -1,15 +1,14 @@
 use crate::{
     endpoints::area::NewOrEditAreaTemplate,
     models::{Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
-use actix_web::{web, HttpResponse, Responder};
+use actix_web::{web, Responder};
 use brass_macros::db_test;
-use rinja::Template;
 
 #[cfg(test)]
 use crate::utils::test_helper::{
-    assert_snapshot, read_body, test_get, DbTestContext, RequestConfig, StatusCode
+    assert_snapshot, read_body, test_get, DbTestContext, RequestConfig, StatusCode,
 };
 
 #[actix_web::get("/area/new")]
@@ -23,7 +22,7 @@ async fn get(user: web::ReqData<User>) -> Result<impl Responder, ApplicationErro
         area: None,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
 
 #[db_test]
diff --git a/web/src/endpoints/assignment/delete.rs b/web/src/endpoints/assignment/delete.rs
index 819aa2b6..eadcbdc7 100644
--- a/web/src/endpoints/assignment/delete.rs
+++ b/web/src/endpoints/assignment/delete.rs
@@ -1,5 +1,4 @@
 use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
 use serde::Deserialize;
 use sqlx::PgPool;
 
@@ -10,7 +9,7 @@ use crate::{
         event_planning_template::{
             generate_availabillity_assignment_list, generate_status_whether_staff_is_required,
         },
-        ApplicationError,
+        ApplicationError, TemplateResponse,
     },
 };
 
@@ -61,5 +60,5 @@ pub async fn delete(
         further_wachhabender_required,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/assignment/post_new.rs b/web/src/endpoints/assignment/post_new.rs
index d02244b1..72c87c7b 100644
--- a/web/src/endpoints/assignment/post_new.rs
+++ b/web/src/endpoints/assignment/post_new.rs
@@ -1,6 +1,5 @@
 use actix_web::{web, HttpResponse, Responder};
 use garde::Validate;
-use rinja::Template;
 use serde::Deserialize;
 use sqlx::PgPool;
 
@@ -14,7 +13,7 @@ use crate::{
         event_planning_template::{
             generate_availabillity_assignment_list, generate_status_whether_staff_is_required,
         },
-        ApplicationError,
+        ApplicationError, TemplateResponse,
     },
 };
 
@@ -98,5 +97,5 @@ pub async fn post(
         further_wachhabender_required,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/availability/get_new.rs b/web/src/endpoints/availability/get_new.rs
index 49b5aa38..db610abf 100644
--- a/web/src/endpoints/availability/get_new.rs
+++ b/web/src/endpoints/availability/get_new.rs
@@ -1,14 +1,14 @@
 use actix_web::{web, HttpResponse, Responder};
 use chrono::NaiveDate;
-use rinja::Template;
 use serde::Deserialize;
 use sqlx::PgPool;
 
 use crate::endpoints::availability::NewOrEditAvailabilityTemplate;
 use crate::models::{
-    find_free_time_slots, only_one_availability_exists_and_is_whole_day, Availability, AvailabilityTime, User
+    find_free_time_slots, only_one_availability_exists_and_is_whole_day, Availability,
+    AvailabilityTime, User,
 };
-use crate::utils::ApplicationError;
+use crate::utils::{ApplicationError, TemplateResponse};
 use crate::{END_OF_DAY, START_OF_DAY};
 
 #[derive(Deserialize)]
@@ -51,5 +51,5 @@ pub async fn get(
         slot_suggestions: free_slots,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/availability/get_overview.rs b/web/src/endpoints/availability/get_overview.rs
index 8379c4a3..59824485 100644
--- a/web/src/endpoints/availability/get_overview.rs
+++ b/web/src/endpoints/availability/get_overview.rs
@@ -4,7 +4,7 @@ use crate::{
         find_free_time_slots, only_one_availability_exists_and_is_whole_day, Assignment,
         AvailabilityTime, Function, Vehicle,
     },
-    utils::{event_planning_template::generate_vehicles_assigned_and_available, ApplicationError},
+    utils::{event_planning_template::generate_vehicles_assigned_and_available, ApplicationError, TemplateResponse},
 };
 use actix_web::{web, HttpResponse, Responder};
 use chrono::{NaiveDate, Utc};
@@ -148,5 +148,5 @@ async fn get(
         availabillities,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/availability/get_update.rs b/web/src/endpoints/availability/get_update.rs
index 6c4e23b0..e9726765 100644
--- a/web/src/endpoints/availability/get_update.rs
+++ b/web/src/endpoints/availability/get_update.rs
@@ -1,12 +1,11 @@
 use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
 use serde::Deserialize;
 use sqlx::PgPool;
 
 use crate::{
     endpoints::{availability::NewOrEditAvailabilityTemplate, IdPath},
     models::{find_free_time_slots, Availability, AvailabilityTime, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
     END_OF_DAY, START_OF_DAY,
 };
 
@@ -64,5 +63,5 @@ pub async fn get(
         slot_suggestions: suggestions,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/events/get_edit.rs b/web/src/endpoints/events/get_edit.rs
index 9ff0b817..62f64bb3 100644
--- a/web/src/endpoints/events/get_edit.rs
+++ b/web/src/endpoints/events/get_edit.rs
@@ -1,6 +1,5 @@
 use actix_web::{web, HttpResponse, Responder};
 use brass_macros::db_test;
-use rinja::Template;
 use sqlx::PgPool;
 
 #[cfg(test)]
@@ -13,7 +12,7 @@ use chrono::{NaiveDate, NaiveTime};
 use crate::{
     endpoints::{events::NewEventTemplate, IdPath},
     models::{Assignment, Event, Function, Location, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[actix_web::get("/events/{id}/edit")]
@@ -55,7 +54,7 @@ pub async fn get(
             .any(|x| x.function == Function::Wachhabender),
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
 
 #[db_test]
@@ -101,9 +100,7 @@ async fn produces_template(context: &DbTestContext) {
         note: None,
     };
 
-    Event::create(&context.db_pool, changeset)
-        .await
-        .unwrap();
+    Event::create(&context.db_pool, changeset).await.unwrap();
 
     let app = context.app().await;
     let config = RequestConfig {
diff --git a/web/src/endpoints/events/get_new.rs b/web/src/endpoints/events/get_new.rs
index 2595576e..5d938bdb 100644
--- a/web/src/endpoints/events/get_new.rs
+++ b/web/src/endpoints/events/get_new.rs
@@ -1,11 +1,10 @@
-use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
+use actix_web::{web, Responder};
 use sqlx::PgPool;
 
 use crate::{
     endpoints::{events::NewEventTemplate, NaiveDateQuery},
     models::{Location, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[actix_web::get("/events/new")]
@@ -31,8 +30,8 @@ pub async fn get(
         event: None,
         amount_of_planned_posten: 0,
         is_fuehrungsassistent_planned: false,
-        is_wachhabender_planned: false
+        is_wachhabender_planned: false,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/events/get_plan.rs b/web/src/endpoints/events/get_plan.rs
index ba177ff3..7514a5cb 100644
--- a/web/src/endpoints/events/get_plan.rs
+++ b/web/src/endpoints/events/get_plan.rs
@@ -5,13 +5,13 @@ use sqlx::PgPool;
 use crate::{
     endpoints::IdPath,
     filters,
-    models::{Availability, AvailabillityAssignmentState, AvailabilityTime, Event, Function, Role, User, Vehicle},
+    models::{Availability, AvailabilityTime, AvailabillityAssignmentState, Event, Function, Role, User, Vehicle},
     utils::{
         event_planning_template::{
             generate_availabillity_assignment_list, generate_status_whether_staff_is_required,
             generate_vehicles_assigned_and_available,
         },
-        ApplicationError,
+        ApplicationError, TemplateResponse,
     },
 };
 
@@ -68,5 +68,5 @@ pub async fn get(
         vehicles_available,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/export/get_availability.rs b/web/src/endpoints/export/get_availability.rs
index acfc0eea..5e0e0bd1 100644
--- a/web/src/endpoints/export/get_availability.rs
+++ b/web/src/endpoints/export/get_availability.rs
@@ -1,11 +1,11 @@
-use actix_web::{web, HttpResponse, Responder};
+use actix_web::{web, Responder};
 use chrono::{NaiveDate, Utc};
 use rinja::Template;
 use sqlx::PgPool;
 
 use crate::{
     models::{Area, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[derive(Template)]
@@ -37,5 +37,5 @@ pub async fn get(
         today: Utc::now().date_naive(),
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/imprint.rs b/web/src/endpoints/imprint.rs
index 07dc2c3b..e0a55a71 100644
--- a/web/src/endpoints/imprint.rs
+++ b/web/src/endpoints/imprint.rs
@@ -1,7 +1,7 @@
-use actix_web::{HttpResponse, Responder};
+use actix_web::Responder;
 use rinja::Template;
 
-use crate::utils::ApplicationError;
+use crate::utils::{ApplicationError, TemplateResponse};
 
 #[derive(Template)]
 #[template(path = "imprint.html")]
@@ -11,5 +11,5 @@ struct ImprintTemplate {}
 pub async fn get_imprint() -> Result<impl Responder, ApplicationError> {
     let template = ImprintTemplate {};
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/location/get_edit.rs b/web/src/endpoints/location/get_edit.rs
index 6776c4e7..3a4ce5f0 100644
--- a/web/src/endpoints/location/get_edit.rs
+++ b/web/src/endpoints/location/get_edit.rs
@@ -1,11 +1,10 @@
 use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
 use sqlx::PgPool;
 
 use crate::{
     endpoints::{location::LocationTemplate, IdPath},
     models::{Area, Location, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[actix_web::get("/locations/edit/{id}")]
@@ -38,5 +37,5 @@ pub async fn get(
         location: Some(location),
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/location/get_new.rs b/web/src/endpoints/location/get_new.rs
index 94842eac..bb7e502e 100644
--- a/web/src/endpoints/location/get_new.rs
+++ b/web/src/endpoints/location/get_new.rs
@@ -1,11 +1,10 @@
-use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
+use actix_web::{web, Responder};
 use sqlx::PgPool;
 
 use crate::{
     endpoints::location::LocationTemplate,
     models::{Area, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[actix_web::get("/locations/new")]
@@ -29,5 +28,5 @@ pub async fn get(
         location: None,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/location/get_overview.rs b/web/src/endpoints/location/get_overview.rs
index edb03fcf..eda6be98 100644
--- a/web/src/endpoints/location/get_overview.rs
+++ b/web/src/endpoints/location/get_overview.rs
@@ -1,10 +1,10 @@
-use actix_web::{web, HttpResponse, Responder};
+use actix_web::{web, Responder};
 use rinja::Template;
 use sqlx::PgPool;
 
 use crate::{
     models::{Area, Location, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[derive(Template)]
@@ -55,5 +55,5 @@ pub async fn get(
         grouped_locations,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/user/get_changepassword.rs b/web/src/endpoints/user/get_changepassword.rs
index b26e22da..d5bc5d79 100644
--- a/web/src/endpoints/user/get_changepassword.rs
+++ b/web/src/endpoints/user/get_changepassword.rs
@@ -1,7 +1,10 @@
-use actix_web::{web, HttpResponse, Responder};
+use actix_web::{web, Responder};
 use rinja::Template;
 
-use crate::{models::User, utils::ApplicationError};
+use crate::{
+    models::User,
+    utils::{ApplicationError, TemplateResponse},
+};
 
 #[derive(Template)]
 #[template(path = "user/profile_change_password.html")]
@@ -11,5 +14,5 @@ struct ProfileChangePasswordTemplate {}
 pub async fn get(_user: web::ReqData<User>) -> Result<impl Responder, ApplicationError> {
     let template = ProfileChangePasswordTemplate {};
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/user/get_edit.rs b/web/src/endpoints/user/get_edit.rs
index 1076049b..2492db4c 100644
--- a/web/src/endpoints/user/get_edit.rs
+++ b/web/src/endpoints/user/get_edit.rs
@@ -1,11 +1,10 @@
 use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
 use sqlx::PgPool;
 
 use crate::{
     endpoints::{user::NewOrEditUserTemplate, IdPath},
     models::{Area, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[actix_web::get("/users/edit/{id}")]
@@ -39,5 +38,5 @@ pub async fn get_edit(
             area_id: Some(user_in_db.area_id),
         };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/user/get_login.rs b/web/src/endpoints/user/get_login.rs
index dbcce787..1b23eec4 100644
--- a/web/src/endpoints/user/get_login.rs
+++ b/web/src/endpoints/user/get_login.rs
@@ -3,7 +3,7 @@ use actix_web::{http::header::LOCATION, web, HttpResponse, Responder};
 use rinja::Template;
 use serde::Deserialize;
 
-use crate::utils::ApplicationError;
+use crate::utils::{ApplicationError, TemplateResponse};
 
 #[derive(Template)]
 #[template(path = "user/login.html")]
@@ -30,6 +30,6 @@ async fn get(
             next: query.next.clone(),
         };
 
-        Ok(HttpResponse::Ok().body(template.render()?))
+        Ok(template.to_response()?)
     }
 }
diff --git a/web/src/endpoints/user/get_new.rs b/web/src/endpoints/user/get_new.rs
index ae00a75d..349a3e1d 100644
--- a/web/src/endpoints/user/get_new.rs
+++ b/web/src/endpoints/user/get_new.rs
@@ -1,11 +1,10 @@
-use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
+use actix_web::{web, Responder};
 use sqlx::PgPool;
 
 use crate::{
     endpoints::user::NewOrEditUserTemplate,
     models::{Area, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[actix_web::get("/users/new")]
@@ -30,5 +29,5 @@ pub async fn get_new(
         area_id: None,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/user/get_overview.rs b/web/src/endpoints/user/get_overview.rs
index 94f0e956..621e0799 100644
--- a/web/src/endpoints/user/get_overview.rs
+++ b/web/src/endpoints/user/get_overview.rs
@@ -1,9 +1,9 @@
 use crate::{
     models::{Area, Function, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
-use actix_web::{web, HttpResponse, Responder};
+use actix_web::{web, Responder};
 use rinja::Template;
 use sqlx::PgPool;
 
@@ -44,5 +44,5 @@ pub async fn get_overview(
         users,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/user/get_profile.rs b/web/src/endpoints/user/get_profile.rs
index ac9b5ac4..607aaefe 100644
--- a/web/src/endpoints/user/get_profile.rs
+++ b/web/src/endpoints/user/get_profile.rs
@@ -1,11 +1,11 @@
-use actix_web::{web, HttpResponse, Responder};
+use actix_web::{web, Responder};
 use rinja::Template;
 use sqlx::PgPool;
 
 use crate::{
     filters,
     models::{Area, Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[derive(Template)]
@@ -26,5 +26,5 @@ pub async fn get(
 
     let template = ProfileTemplate { user };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/user/get_register.rs b/web/src/endpoints/user/get_register.rs
index 0ff0982c..0f1384f9 100644
--- a/web/src/endpoints/user/get_register.rs
+++ b/web/src/endpoints/user/get_register.rs
@@ -1,10 +1,12 @@
 use actix_identity::Identity;
 use actix_web::{get, http::header::LOCATION, web, HttpResponse, Responder};
-use rinja::Template;
 use serde::Deserialize;
 use sqlx::PgPool;
 
-use crate::{models::Registration, utils::ApplicationError};
+use crate::{
+    models::Registration,
+    utils::{ApplicationError, TemplateResponse},
+};
 
 use super::ResetPasswordTemplate;
 
@@ -38,5 +40,5 @@ pub async fn get(
         submit_button_label: "Registrieren",
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/user/get_reset.rs b/web/src/endpoints/user/get_reset.rs
index 855f2166..5515864b 100644
--- a/web/src/endpoints/user/get_reset.rs
+++ b/web/src/endpoints/user/get_reset.rs
@@ -4,7 +4,10 @@ use rinja::Template;
 use serde::Deserialize;
 use sqlx::PgPool;
 
-use crate::{models::PasswordReset, utils::ApplicationError};
+use crate::{
+    models::PasswordReset,
+    utils::{ApplicationError, TemplateResponse},
+};
 
 use super::ResetPasswordTemplate;
 
@@ -38,10 +41,10 @@ pub async fn get(
                 submit_button_label: "Passwort zurücksetzen",
             };
 
-            return Ok(HttpResponse::Ok().body(template.render()?))
+            return Ok(template.to_response()?);
         }
     }
 
     let template = ForgotPasswordTemplate {};
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/vehicle/get_edit.rs b/web/src/endpoints/vehicle/get_edit.rs
index 33215a3c..1add5d0a 100644
--- a/web/src/endpoints/vehicle/get_edit.rs
+++ b/web/src/endpoints/vehicle/get_edit.rs
@@ -1,11 +1,10 @@
 use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
 use sqlx::PgPool;
 
 use crate::{
     endpoints::{vehicle::VehicleNewOrEditTemplate, IdPath},
     models::{Role, User, Vehicle},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[actix_web::get("/vehicles/{id}")]
@@ -27,5 +26,5 @@ pub async fn get(
         vehicle: Some(vehicle),
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/vehicle/get_new.rs b/web/src/endpoints/vehicle/get_new.rs
index 805462b7..e7dc4695 100644
--- a/web/src/endpoints/vehicle/get_new.rs
+++ b/web/src/endpoints/vehicle/get_new.rs
@@ -1,10 +1,9 @@
-use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
+use actix_web::{web, Responder};
 
 use crate::{
     endpoints::vehicle::VehicleNewOrEditTemplate,
     models::{Role, User},
-    utils::ApplicationError,
+    utils::{ApplicationError, TemplateResponse},
 };
 
 #[actix_web::get("/vehicles/new")]
@@ -18,5 +17,5 @@ pub async fn get(user: web::ReqData<User>) -> Result<impl Responder, Application
         vehicle: None,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/vehicle/get_overview.rs b/web/src/endpoints/vehicle/get_overview.rs
index 13266187..df033973 100644
--- a/web/src/endpoints/vehicle/get_overview.rs
+++ b/web/src/endpoints/vehicle/get_overview.rs
@@ -1,18 +1,24 @@
-use actix_web::{web, HttpResponse, Responder};
+use actix_web::{web, Responder};
 use rinja::Template;
 use sqlx::PgPool;
 
-use crate::{models::{User, Vehicle, Role}, utils::ApplicationError};
+use crate::{
+    models::{Role, User, Vehicle},
+    utils::{ApplicationError, TemplateResponse},
+};
 
 #[derive(Template)]
 #[template(path = "vehicles/overview.html")]
 pub struct VehiclesOverviewTemplate {
     user: User,
-    vehicles: Vec<Vehicle>
+    vehicles: Vec<Vehicle>,
 }
 
 #[actix_web::get("/vehicles")]
-pub async fn get(user: web::ReqData<User>, pool: web::Data<PgPool>) -> Result<impl Responder, ApplicationError> {
+pub async fn get(
+    user: web::ReqData<User>,
+    pool: web::Data<PgPool>,
+) -> Result<impl Responder, ApplicationError> {
     if user.role != Role::Admin {
         return Err(ApplicationError::Unauthorized);
     }
@@ -21,8 +27,8 @@ pub async fn get(user: web::ReqData<User>, pool: web::Data<PgPool>) -> Result<im
 
     let template = VehiclesOverviewTemplate {
         user: user.into_inner(),
-        vehicles
+        vehicles,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/vehicle_assignment/delete.rs b/web/src/endpoints/vehicle_assignment/delete.rs
index 6cd50419..3999ea96 100644
--- a/web/src/endpoints/vehicle_assignment/delete.rs
+++ b/web/src/endpoints/vehicle_assignment/delete.rs
@@ -1,12 +1,14 @@
 use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
 use serde::Deserialize;
 use sqlx::PgPool;
 
 use crate::{
     endpoints::vehicle_assignment::PlanVehiclesPartialTemplate,
     models::{Event, Role, User, VehicleAssignement},
-    utils::{event_planning_template::generate_vehicles_assigned_and_available, ApplicationError},
+    utils::{
+        event_planning_template::generate_vehicles_assigned_and_available, ApplicationError,
+        TemplateResponse,
+    },
 };
 
 #[derive(Deserialize)]
@@ -55,5 +57,5 @@ pub async fn delete(
         vehicles_available,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/endpoints/vehicle_assignment/post_new.rs b/web/src/endpoints/vehicle_assignment/post_new.rs
index c9a045bb..71d2358a 100644
--- a/web/src/endpoints/vehicle_assignment/post_new.rs
+++ b/web/src/endpoints/vehicle_assignment/post_new.rs
@@ -1,12 +1,14 @@
 use actix_web::{web, HttpResponse, Responder};
-use rinja::Template;
 use serde::Deserialize;
 use sqlx::PgPool;
 
 use crate::{
     endpoints::vehicle_assignment::PlanVehiclesPartialTemplate,
     models::{Event, Role, User, Vehicle, VehicleAssignement},
-    utils::{event_planning_template::generate_vehicles_assigned_and_available, ApplicationError},
+    utils::{
+        event_planning_template::generate_vehicles_assigned_and_available, ApplicationError,
+        TemplateResponse,
+    },
 };
 
 #[derive(Deserialize)]
@@ -44,7 +46,8 @@ pub async fn post(
     };
 
     let existing_assignments_for_vehicle =
-        VehicleAssignement::read_all_by_vehicle_and_date(pool.get_ref(), vehicle.id, event.date).await?;
+        VehicleAssignement::read_all_by_vehicle_and_date(pool.get_ref(), vehicle.id, event.date)
+            .await?;
     let has_start_time_during_event =
         |a: &VehicleAssignement| a.start_time >= event.start_time && a.start_time <= event.end_time;
     let has_end_time_during_event =
@@ -76,5 +79,5 @@ pub async fn post(
         vehicles_available,
     };
 
-    Ok(HttpResponse::Ok().body(template.render()?))
+    Ok(template.to_response()?)
 }
diff --git a/web/src/utils/mod.rs b/web/src/utils/mod.rs
index cba7f012..9afff1f2 100644
--- a/web/src/utils/mod.rs
+++ b/web/src/utils/mod.rs
@@ -4,6 +4,7 @@ pub mod event_planning_template;
 pub mod manage_commands;
 pub mod password_help;
 pub mod token_generation;
+mod template_response_trait;
 
 #[cfg(test)]
 pub mod test_helper;
@@ -11,6 +12,8 @@ pub mod test_helper;
 pub use application_error::ApplicationError;
 use chrono::{NaiveDate, Utc};
 
+pub use template_response_trait::TemplateResponse;
+
 pub fn get_return_url_for_date(date: &NaiveDate) -> String {
     let today = Utc::now().date_naive();
     if date == &today {
diff --git a/web/src/utils/template_response_trait.rs b/web/src/utils/template_response_trait.rs
new file mode 100644
index 00000000..bab9a7ec
--- /dev/null
+++ b/web/src/utils/template_response_trait.rs
@@ -0,0 +1,18 @@
+use actix_web::{http::header::ContentType, HttpResponse};
+use rinja::Template;
+
+pub trait TemplateResponse {
+    fn to_response(&self) -> Result<HttpResponse, rinja::Error>;
+}
+
+impl<T: Template> TemplateResponse for T {
+    fn to_response(&self) -> Result<HttpResponse, rinja::Error> {
+        let rendered_template = self.render()?;
+
+        let response = HttpResponse::Ok()
+            .content_type(ContentType::html())
+            .body(rendered_template);
+
+        Ok(response)
+    }
+}