2 files changed, 31 insertions, 5 deletions
diff --git a/src/main/java/com/encora/Main.java b/src/main/java/com/encora/Main.java
index ec23015..108e657 100644
--- a/src/main/java/com/encora/Main.java
+++ b/src/main/java/com/encora/Main.java
@@ -54,4 +54,20 @@ public class Main {
         todo.setPriority(toDo.priority());
         toDosRepository.save(todo);
     }
+
+    // Update a to do with "done".
+    @ResponseStatus(value=HttpStatus.BAD_REQUEST, reason="No to do with such index.")
+    public static class toDoNotFound extends RuntimeException {}
+
+    @PostMapping("/todos/{id}/done")
+    @ResponseStatus(value=HttpStatus.OK)
+    public void setDone(@PathVariable("id") Integer id) {
+        ToDos selectedToDo = toDosRepository.getById(id);
+        if (selectedToDo == null)   throw new toDoNotFound();
+        if (selectedToDo.isDone())  return;
+
+        selectedToDo.setDone(true);
+        selectedToDo.setDoneDate(new Date());
+        toDosRepository.save(selectedToDo);
+    }
 }
diff --git a/src/main/java/com/encora/ToDosRepository.java b/src/main/java/com/encora/ToDosRepository.java
index 5b8b292..f19d1ce 100644
--- a/src/main/java/com/encora/ToDosRepository.java
+++ b/src/main/java/com/encora/ToDosRepository.java
@@ -66,6 +66,21 @@ public class ToDosRepository implements JpaRepository<ToDos, Integer> {
         return null;
     }
 
+    // Retrieve a to do.
+    @Override
+    public ToDos getById(Integer integer) {
+        ToDos selectedToDo;
+
+        for (int index = 0; index < this.todos.size(); index++) {
+            selectedToDo = this.todos.get(index);
+            if (Objects.equals(selectedToDo.getId(), integer)) {
+                return selectedToDo;
+            }
+        }
+
+        return null;
+    }
+
     /*
     *         N O T   Y E T   D E F I N E D .
     */
@@ -105,11 +120,6 @@ public class ToDosRepository implements JpaRepository<ToDos, Integer> {
     }
 
     @Override
-    public ToDos getById(Integer integer) {
-        return null;
-    }
-
-    @Override
     public ToDos getReferenceById(Integer integer) {
         return null;
     }