feat: moving associated type working into the repository

src/admin_examples/empty_repository.rs

@@ -10,6 +10,14 @@ impl Repository {}
 impl AdminRepository for Repository {
     type Key = i64;
 
+    fn key_from_string(&self, s: String) -> Option<Self::Key> {
+        if let Ok(i) = s.parse::<i64>() {
+            Some(i)
+        } else {
+            None
+        }
+    }
+
     async fn info(&self, _: &RepositoryContext) -> RepositoryInfo {
         RepoInfo {
             name: "My Empty Repository",

src/admin_examples/static_repository.rs

@@ -38,6 +38,14 @@ impl MyStaticRepository {
 impl AdminRepository for MyStaticRepository {
     type Key = i64;
 
+    fn key_from_string(&self, s: String) -> Option<Self::Key> {
+        if let Ok(i) = s.parse::<i64>() {
+            Some(i)
+        } else {
+            None
+        }
+    }
+
     async fn info(&self, _: &RepositoryContext) -> RepositoryInfo {
         RepoInfo {
             name: "My Static Repository",

src/admin_examples/user_repository.rs

@@ -21,6 +21,14 @@ impl UserRepository {
 impl AdminRepository for UserRepository {
     type Key = i64;
 
+    fn key_from_string(&self, s: String) -> Option<Self::Key> {
+        if let Ok(i) = s.parse::<i64>() {
+            Some(i)
+        } else {
+            None
+        }
+    }
+
     async fn info(&self, _: &RepositoryContext) -> RepositoryInfo {
         RepoInfo {
             name: "User",