diff --git a/src/model/planned_event.rs b/src/model/planned_event.rs
index 7b08ae2..497c615 100644
--- a/src/model/planned_event.rs
+++ b/src/model/planned_event.rs
@@ -25,15 +25,13 @@ pub struct PlannedEventWithUser {
 
 impl PlannedEvent {
     pub async fn get_for_day(db: &SqlitePool, day: NaiveDate) -> Vec<PlannedEventWithUser> {
-        let day = format!("{}", day);
+        let day = format!("{day}");
         let events = sqlx::query_as!(
             PlannedEvent,
-            "
-SELECT planned_event.id, name, planned_amount_cox, allow_guests, trip_details_id, planned_starting_time, max_people, day, notes
+            "SELECT planned_event.id, name, planned_amount_cox, allow_guests, trip_details_id, planned_starting_time, max_people, day, notes
 FROM planned_event
 INNER JOIN trip_details ON planned_event.trip_details_id = trip_details.id
-WHERE day=?
-        ",
+WHERE day=?",
         day
         )
         .fetch_all(db)
@@ -46,22 +44,20 @@ WHERE day=?
                 planned_event: event.clone(),
                 cox: Self::get_all_cox_for_id(db, event.id).await,
                 rower: Self::get_all_rower_for_id(db, event.id).await,
-            })
+            });
         }
         ret
     }
 
     pub async fn rower_can_register(db: &SqlitePool, trip_details_id: i64) -> bool {
         let amount_currently_registered = sqlx::query!(
-            "
-            SELECT COUNT(*) as count FROM user_trip WHERE trip_details_id = ?
-        ",
+            "SELECT COUNT(*) as count FROM user_trip WHERE trip_details_id = ?",
             trip_details_id
         )
         .fetch_one(db)
         .await
         .unwrap(); //TODO: fixme
-        let amount_currently_registered = amount_currently_registered.count as i64;
+        let amount_currently_registered = i64::from(amount_currently_registered.count);
 
         let amount_allowed_to_register = sqlx::query!(
             "
@@ -87,11 +83,8 @@ SELECT (SELECT name FROM user WHERE cox_id = id) as name FROM trip WHERE planned
         .fetch_all(db)
         .await
         .unwrap(); //TODO: fixme
-        let mut ret = Vec::new();
-        for r in res {
-            ret.push(r.name);
-        }
-        ret
+
+        res.into_iter().map(|x| x.name).collect()
     }
 
     async fn get_all_rower_for_id(db: &SqlitePool, id: i64) -> Vec<String> {
@@ -104,14 +97,11 @@ SELECT (SELECT name FROM user WHERE user_trip.user_id = user.id) as name FROM us
         .fetch_all(db)
         .await
         .unwrap(); //TODO: fixme
-        let mut ret = Vec::new();
-        for r in res {
-            ret.push(r.name);
-        }
-        ret
+
+        res.into_iter().map(|x| x.name).collect()
     }
 
-    pub async fn new(
+    pub async fn create(
         db: &SqlitePool,
         name: String,
         planned_amount_cox: i32,
diff --git a/src/model/trip.rs b/src/model/trip.rs
index 7e9245b..77383c8 100644
--- a/src/model/trip.rs
+++ b/src/model/trip.rs
@@ -23,7 +23,7 @@ pub struct TripWithUser {
 
 impl Trip {
     pub async fn get_for_day(db: &SqlitePool, day: NaiveDate) -> Vec<TripWithUser> {
-        let day = format!("{}", day);
+        let day = format!("{day}");
         let trips = sqlx::query_as!(
             Trip,
             "
@@ -43,7 +43,7 @@ WHERE day=?
             ret.push(TripWithUser {
                 trip: trip.clone(),
                 rower: Self::get_all_rower_for_id(db, trip.id).await,
-            })
+            });
         }
         ret
     }
@@ -58,11 +58,8 @@ SELECT (SELECT name FROM user WHERE user_trip.user_id = user.id) as name FROM us
         .fetch_all(db)
         .await
         .unwrap(); //TODO: fixme
-        let mut ret = Vec::new();
-        for r in res {
-            ret.push(r.name);
-        }
-        ret
+
+        res.into_iter().map(|x| x.name).collect()
     }
 
     pub async fn new_own(db: &SqlitePool, cox_id: i64, trip_details_id: i64) {
diff --git a/src/model/tripdetails.rs b/src/model/tripdetails.rs
index 9ea0d56..e26c88b 100644
--- a/src/model/tripdetails.rs
+++ b/src/model/tripdetails.rs
@@ -11,7 +11,7 @@ pub struct TripDetails {
 }
 
 impl TripDetails {
-    pub async fn new(
+    pub async fn create(
         db: &SqlitePool,
         planned_starting_time: String,
         max_people: i32,
diff --git a/src/model/user.rs b/src/model/user.rs
index b74031f..8d73a0b 100644
--- a/src/model/user.rs
+++ b/src/model/user.rs
@@ -121,11 +121,11 @@ WHERE name like ?
         Ok(user)
     }
 
-    fn get_hashed_pw(pw: String) -> String {
+    fn get_hashed_pw(pw: &str) -> String {
         let salt = SaltString::from_b64("dS/X5/sPEKTj4Rzs/CuvzQ").unwrap();
         let argon2 = Argon2::default();
         argon2
-            .hash_password(&pw.as_bytes(), &salt)
+            .hash_password(pw.as_bytes(), &salt)
             .unwrap()
             .to_string()
     }
@@ -135,7 +135,7 @@ WHERE name like ?
 
         match user.pw.clone() {
             Some(user_pw) => {
-                let password_hash = Self::get_hashed_pw(pw);
+                let password_hash = Self::get_hashed_pw(&pw);
                 if password_hash == user_pw {
                     return Ok(user);
                 }
@@ -167,7 +167,7 @@ FROM user
     }
 
     pub async fn update_pw(&self, db: &SqlitePool, pw: String) {
-        let pw = Self::get_hashed_pw(pw);
+        let pw = Self::get_hashed_pw(&pw);
         sqlx::query!("UPDATE user SET pw = ? where id = ?", pw, self.id)
             .execute(db)
             .await
@@ -182,7 +182,7 @@ impl<'r> FromRequest<'r> for User {
     async fn from_request(req: &'r Request<'_>) -> request::Outcome<Self, Self::Error> {
         match req.cookies().get_private("loggedin_user") {
             Some(user) => {
-                let user: User = serde_json::from_str(&user.value()).unwrap(); //TODO: fixme
+                let user: User = serde_json::from_str(user.value()).unwrap(); //TODO: fixme
                 Outcome::Success(user)
             }
             None => Outcome::Failure((Status::Unauthorized, LoginError::NotLoggedIn)),
@@ -197,7 +197,7 @@ impl<'r> FromRequest<'r> for AdminUser {
     async fn from_request(req: &'r Request<'_>) -> request::Outcome<Self, Self::Error> {
         match req.cookies().get_private("loggedin_user") {
             Some(user) => {
-                let user: User = serde_json::from_str(&user.value()).unwrap(); //TODO: fixme
+                let user: User = serde_json::from_str(user.value()).unwrap(); //TODO: fixme
                 match user.try_into() {
                     Ok(user) => Outcome::Success(user),
                     Err(_) => Outcome::Failure((Status::Unauthorized, LoginError::NotAnAdmin)),
@@ -215,7 +215,7 @@ impl<'r> FromRequest<'r> for CoxUser {
     async fn from_request(req: &'r Request<'_>) -> request::Outcome<Self, Self::Error> {
         match req.cookies().get_private("loggedin_user") {
             Some(user) => {
-                let user: User = serde_json::from_str(&user.value()).unwrap(); //TODO: fixme
+                let user: User = serde_json::from_str(user.value()).unwrap(); //TODO: fixme
                 match user.try_into() {
                     Ok(user) => Outcome::Success(user),
                     Err(_) => Outcome::Failure((Status::Unauthorized, LoginError::NotAnAdmin)),
diff --git a/src/model/usertrip.rs b/src/model/usertrip.rs
index dec0ff3..ba0897a 100644
--- a/src/model/usertrip.rs
+++ b/src/model/usertrip.rs
@@ -3,7 +3,7 @@ use sqlx::SqlitePool;
 pub struct UserTrip {}
 
 impl UserTrip {
-    pub async fn new(db: &SqlitePool, user_id: i64, trip_details_id: i64) -> bool {
+    pub async fn create(db: &SqlitePool, user_id: i64, trip_details_id: i64) -> bool {
         sqlx::query!(
             "INSERT INTO user_trip (user_id, trip_details_id) VALUES(?, ?)",
             user_id,
diff --git a/src/rest/admin/planned_event.rs b/src/rest/admin/planned_event.rs
index 941d739..b3d678b 100644
--- a/src/rest/admin/planned_event.rs
+++ b/src/rest/admin/planned_event.rs
@@ -27,7 +27,7 @@ async fn create(
     _admin: AdminUser,
 ) -> Flash<Redirect> {
     //TODO: fix clones()
-    let trip_details_id = TripDetails::new(
+    let trip_details_id = TripDetails::create(
         db,
         data.planned_starting_time.clone(),
         data.max_people,
@@ -37,7 +37,7 @@ async fn create(
     .await;
 
     //TODO: fix clone()
-    PlannedEvent::new(
+    PlannedEvent::create(
         db,
         data.name.clone(),
         data.planned_amount_cox,
diff --git a/src/rest/admin/user.rs b/src/rest/admin/user.rs
index f345e7f..6512891 100644
--- a/src/rest/admin/user.rs
+++ b/src/rest/admin/user.rs
@@ -44,14 +44,11 @@ async fn update(
     _admin: AdminUser,
 ) -> Flash<Redirect> {
     let user = User::find_by_id(db, data.id).await;
-    let user = match user {
-        Ok(user) => user,
-        Err(_) => {
+    let Ok(user) = user else {
             return Flash::error(
                 Redirect::to("/admin/user"),
                 format!("User with ID {} does not exist!", data.id),
             )
-        }
     };
 
     user.update(db, data.is_cox, data.is_admin, data.is_guest)
diff --git a/src/rest/auth.rs b/src/rest/auth.rs
index 8f403af..2b149a3 100644
--- a/src/rest/auth.rs
+++ b/src/rest/auth.rs
@@ -14,7 +14,7 @@ use sqlx::SqlitePool;
 use crate::model::user::{LoginError, User};
 
 #[get("/")]
-async fn index(flash: Option<FlashMessage<'_>>) -> Template {
+fn index(flash: Option<FlashMessage<'_>>) -> Template {
     let mut context = tera::Context::new();
 
     if let Some(msg) = flash {
@@ -59,7 +59,7 @@ async fn login(
 }
 
 #[get("/set-pw/<userid>")]
-async fn setpw(userid: i32) -> Template {
+fn setpw(userid: i32) -> Template {
     Template::render("auth/set-pw", context!(userid))
 }
 
@@ -77,14 +77,11 @@ async fn updatepw(
     cookies: &CookieJar<'_>,
 ) -> Flash<Redirect> {
     let user = User::find_by_id(db, updatepw.userid).await;
-    let user = match user {
-        Ok(user) => user,
-        Err(_) => {
+    let Ok(user) = user else{
             return Flash::error(
                 Redirect::to("/auth"),
                 format!("User with ID {} does not exist!", updatepw.userid),
             )
-        }
     };
 
     if updatepw.password != updatepw.password_confirm {
@@ -106,7 +103,7 @@ async fn updatepw(
 }
 
 #[get("/logout")]
-async fn logout(cookies: &CookieJar<'_>, _user: User) -> Flash<Redirect> {
+fn logout(cookies: &CookieJar<'_>, _user: User) -> Flash<Redirect> {
     cookies.remove_private(Cookie::named("loggedin_user"));
 
     Flash::success(Redirect::to("/auth"), "Logout erfolgreich")
diff --git a/src/rest/cox.rs b/src/rest/cox.rs
index 5ac43f3..8054cd6 100644
--- a/src/rest/cox.rs
+++ b/src/rest/cox.rs
@@ -20,7 +20,7 @@ struct AddTripForm {
 #[post("/trip", data = "<data>")]
 async fn create(db: &State<SqlitePool>, data: Form<AddTripForm>, cox: CoxUser) -> Flash<Redirect> {
     //TODO: fix clones()
-    let trip_details_id = TripDetails::new(
+    let trip_details_id = TripDetails::create(
         db,
         data.planned_starting_time.clone(),
         data.max_people,
diff --git a/src/rest/mod.rs b/src/rest/mod.rs
index 1075400..732e40b 100644
--- a/src/rest/mod.rs
+++ b/src/rest/mod.rs
@@ -47,7 +47,7 @@ async fn join(db: &State<SqlitePool>, trip_details_id: i64, user: User) -> Flash
         return Flash::error(Redirect::to("/"), "Bereits ausgebucht!");
     }
 
-    if UserTrip::new(db, user.id, trip_details_id).await {
+    if UserTrip::create(db, user.id, trip_details_id).await {
         Flash::success(Redirect::to("/"), "Erfolgreich angemeldet!")
     } else {
         Flash::error(Redirect::to("/"), "Du nimmst bereits teil!")