#216 - ENH: Add Model.Finder deleteById(id) method

src/main/java/com/avaje/ebean/Model.java

@@ -248,10 +248,12 @@ public abstract class Model {
       return new Finder<I, T>(server, idType, type);
     }
 
-    // Does not exist yet but I think should
-    // public void deleteById(I id) {
-    // return db().deleteById(type, id);
-    // }
+    /**
+     * Delete a bean by Id.
+     */
+    public void deleteById(I id) {
+      db().delete(type, id);
+    }
 
     /**
      * Retrieves all entities of the given type.

src/main/java/com/avaje/ebeaninternal/server/persist/DefaultPersister.java

@@ -455,7 +455,11 @@ public final class DefaultPersister implements Persister {
 		// delete the bean(s)
 		SqlUpdate deleteById = descriptor.deleteById(id, idList);
 		if (t.isLogSummary()) {
-			t.logSummary("-- Deleting " + descriptor.getName() + " Ids" + idList);
+      if (idList != null) {
+        t.logSummary("-- Deleting " + descriptor.getName() + " Ids: " + idList);
+      } else {
+        t.logSummary("-- Deleting " + descriptor.getName() + " Id: " + id);
+      }
 		}
 
 		// use Id's to update L2 cache rather than Bulk table event

src/test/java/com/avaje/tests/delete/TestDeleteByIdUsingModel.java

@@ -0,0 +1,27 @@
+package com.avaje.tests.delete;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.tests.model.onetoone.Account;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+public class TestDeleteByIdUsingModel extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    Account account = new Account();
+    account.setName("GoingToDeleteThis");
+    account.save();
+
+    Account account1 = Account.find.byId(account.getId());
+    assertEquals(account.getName(), account1.getName());
+
+    Account.find.deleteById(account.getId());
+
+    Account account2 = Account.find.byId(account.getId());
+    assertNull(account2);
+  }
+}