ADD: failing testcase for orderColumn when tree depth > 1

src/test/java/org/tests/order/OrderReferencedChild.java

@@ -1,8 +1,12 @@
 package org.tests.order;
 
+import javax.persistence.CascadeType;
 import javax.persistence.DiscriminatorValue;
 import javax.persistence.Entity;
 import javax.persistence.ManyToOne;
+import javax.persistence.OneToMany;
+import javax.persistence.OrderColumn;
+import java.util.List;
 
 @Entity
 @DiscriminatorValue("D")
@@ -13,6 +17,10 @@ public class OrderReferencedChild extends OrderReferencedParent {
   @ManyToOne
   OrderMaster master;
 
+  @OneToMany(cascade = CascadeType.ALL, mappedBy = "child", orphanRemoval = true)
+  @OrderColumn(name = "sort_order")
+  List<OrderToy> toys;
+
   public OrderReferencedChild(final String name) {
     super(name);
   }
@@ -32,4 +40,12 @@ public class OrderReferencedChild extends OrderReferencedParent {
   public void setMaster(final OrderMaster master) {
     this.master = master;
   }
+
+  public List<OrderToy> getToys() {
+    return toys;
+  }
+
+  public void setToys(final List<OrderToy> toys) {
+    this.toys = toys;
+  }
 }

src/test/java/org/tests/order/OrderToy.java

@@ -0,0 +1,45 @@
+package org.tests.order;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.ManyToOne;
+
+@Entity
+public class OrderToy {
+
+  @Id
+  Integer id;
+
+  String title;
+
+  @ManyToOne
+  OrderReferencedChild child;
+
+  public OrderToy(final String title) {
+    this.title = title;
+  }
+
+  public Integer getId() {
+    return id;
+  }
+
+  public void setId(final Integer id) {
+    this.id = id;
+  }
+
+  public String getTitle() {
+    return title;
+  }
+
+  public void setTitle(final String title) {
+    this.title = title;
+  }
+
+  public OrderReferencedChild getChild() {
+    return child;
+  }
+
+  public void setChild(final OrderReferencedChild child) {
+    this.child = child;
+  }
+}

src/test/java/org/tests/order/TestOrderColumn.java

@@ -2,8 +2,11 @@ package org.tests.order;
 
 import io.ebean.Ebean;
 import io.ebean.TransactionalTestCase;
+import org.ebeantest.LoggedSqlCollector;
 import org.junit.Test;
 
+import java.util.List;
+
 import static org.assertj.core.api.Assertions.assertThat;
 
 public class TestOrderColumn extends TransactionalTestCase {
@@ -28,4 +31,50 @@ public class TestOrderColumn extends TransactionalTestCase {
     assertThat(result.getChildren()).extracting(OrderReferencedChild::getChildName).containsExactly("c0", "c1", "c2", "c3", "c4");
   }
 
+  @Test
+  public void testModifyTree() {
+    final OrderMaster master = new OrderMaster();
+
+    for (int i = 0; i < 5; i++) {
+      final OrderReferencedChild child = new OrderReferencedChild("p" + i);
+      child.setChildName("c" + i);
+
+      for (int j = 0; j < 3; j++) {
+        final OrderToy toy = new OrderToy("t" + i + j);
+        child.getToys().add(toy);
+      }
+
+      master.getChildren().add(child);
+    }
+
+    Ebean.save(master);
+
+    final OrderMaster result = Ebean.find(OrderMaster.class).findOne();
+
+    final List<OrderReferencedChild> children = result.getChildren();
+    assertThat(children).hasSize(5);
+
+    for (int i = 0; i < 5; i++) {
+      final List<OrderToy> toys = children.get(i).getToys();
+
+      for (int j = 0; j < 3; j++) {
+        final OrderToy toy = toys.get(j);
+        assertThat(toy.getTitle()).isEqualTo("t" + i + j);
+      }
+    }
+
+    // modify two toys
+    children.get(1).getToys().get(0).setTitle("tt10");
+    children.get(3).getToys().get(2).setTitle("tt32");
+
+    LoggedSqlCollector.start();
+    Ebean.save(result);
+    final List<String> sql = LoggedSqlCollector.current();
+    assertThat(sql).hasSize(3);
+
+    assertThat(sql.get(0)).contains("update order_toy set title=?, sort_order=? where id=?");
+    assertThat(sql.get(1)).contains("bind(tt10");
+    assertThat(sql.get(2)).contains("bind(tt32");
+  }
+
 }