allow to edit roles

src/model/role.rs

@@ -1,5 +1,6 @@
 use std::{cmp::Ordering, fmt::Display, ops::DerefMut};
 
+use super::{activity::ActivityBuilder, user::AdminUser};
 use serde::{Deserialize, Serialize};
 use sqlx::{FromRow, Sqlite, SqlitePool, Transaction};
 
@@ -134,6 +135,30 @@ WHERE name like ?
         .ok()
     }
 
+    pub async fn update(
+        &self,
+        db: &SqlitePool,
+        updated_by: &AdminUser,
+        formatted_name: &str,
+        desc: &str,
+    ) -> Result<(), String> {
+        sqlx::query!(
+            "UPDATE role SET formatted_name=?, desc=? WHERE id=?",
+            formatted_name,
+            desc,
+            self.id
+        )
+        .execute(db)
+        .await
+        .map_err(|e| e.to_string())?;
+
+        ActivityBuilder::new(&format!(
+            "{updated_by} hat Rolle {self} von {self:#?} auf FORMATTED_NAME={formatted_name}, DESC={desc} aktualisiert."
+        )).relevant_for_role(self).save(db).await;
+
+        Ok(())
+    }
+
     pub async fn names_from_role(&self, db: &SqlitePool) -> Vec<String> {
         let query = format!(
             "SELECT u.name