log if a cox creates a trip

src/model/planned/tripdetails.rs

@@ -8,6 +8,7 @@ use super::{
     trip::{Trip, TripWithDetails},
     triptype::TripType,
 };
+use std::fmt::Display;
 
 #[derive(FromRow, Debug, Serialize, Deserialize)]
 pub struct TripDetails {
@@ -22,6 +23,20 @@ pub struct TripDetails {
     pub is_locked: bool,
 }
 
+impl Display for TripDetails {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_str(&format!(
+            "Ausfahrt am {} um {} mit {} Personen",
+            self.day, self.planned_starting_time, self.max_people
+        ))?;
+        if let Some(notes) = &self.notes {
+            f.write_str(&format!(" Notizen: {notes}"))?;
+        }
+
+        Ok(())
+    }
+}
+
 #[derive(FromForm, Serialize)]
 pub struct TripDetailsToAdd<'r> {
     //TODO: properly parse `planned_starting_time`