#398 - ENH: Support delete using a Query instance

src/test/java/com/avaje/ebeaninternal/api/TDSpiEbeanServer.java

@@ -161,6 +161,11 @@ public class TDSpiEbeanServer implements SpiEbeanServer {
     return null;
   }
 
+  @Override
+  public <T> int delete(Query<T> query, Transaction t) {
+    return 0;
+  }
+
   @Override
   public <T> List<Version<T>> findVersions(Query<T> query, Transaction transaction) {
     return null;

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

@@ -0,0 +1,48 @@
+package com.avaje.tests.delete;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.ebean.Ebean;
+import com.avaje.ebean.EbeanServer;
+import com.avaje.ebean.Query;
+import com.avaje.tests.model.basic.Contact;
+import org.avaje.ebeantest.LoggedSqlCollector;
+import org.junit.Test;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class TestDeleteByQuery extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    EbeanServer server = Ebean.getDefaultServer();
+
+    Query<Contact> query = server.find(Contact.class).where().eq("group.name", "NahYeahMaybe").query();
+
+    LoggedSqlCollector.start();
+    server.delete(query, null);
+
+    List<String> loggedSql = LoggedSqlCollector.stop();
+    assertThat(loggedSql).hasSize(1);
+    assertThat(loggedSql.get(0)).contains("delete from contact where id in (select t0.id c0 from contact t0 left outer join");
+
+    Query<Contact> query2 = server.find(Contact.class).where().eq("firstName", "NotARealFirstName").query();
+
+    LoggedSqlCollector.start();
+    server.delete(query2, null);
+
+    loggedSql = LoggedSqlCollector.stop();
+    assertThat(loggedSql).hasSize(1);
+    assertThat(loggedSql.get(0)).contains("delete from contact t0 where t0.first_name =");
+
+
+    server.find(Contact.class).select("id").where().eq("firstName", "NotARealFirstName").delete();
+    server.find(Contact.class).select("id").where().eq("firstName", "TwoAlsoNotRealFirstName").query().delete();
+
+    List<Contact> list = server.find(Contact.class).select("id").where().eq("firstName", "NotARealFirstName").findList();
+    assertThat(list).isEmpty();
+  }
+
+}