#919 - io.ebean package initial

src/test/java/org/tests/query/TestManyWhereJoin.java

@@ -0,0 +1,164 @@
+package org.tests.query;
+
+import io.ebean.BaseTestCase;
+import io.ebean.Ebean;
+import io.ebean.Query;
+import org.tests.model.basic.Customer;
+import org.tests.model.basic.Order;
+import org.tests.model.basic.Product;
+import org.tests.model.basic.ResetBasicData;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestManyWhereJoin extends BaseTestCase {
+
+  @Test
+  public void test() {
+
+    ResetBasicData.reset();
+
+    Query<Customer> query = Ebean.find(Customer.class).select("id,status")
+      // the where on a 'many' (like orders) requires an
+      // additional join and distinct which is independent
+      // of a fetch join (if there is a fetch join)
+      .where().eq("orders.status", Order.Status.NEW)
+      // .where().eq("orders.details.product.name", "Desk")
+      .query();
+
+    query.findList();
+    String sql = sqlOf(query, 1);
+
+    // select distinct t0.id c0, t0.status c1
+    // from o_customer t0
+    // join o_order u1 on u1.kcustomer_id = t0.id
+    // where u1.status = ? ; --bind(NEW)
+
+    Assert.assertTrue(sql.contains("select distinct "));
+    Assert.assertTrue(sql.contains("join o_order "));
+    Assert.assertTrue(sql.contains(".status = ?"));
+    Assert.assertTrue(sql.contains("select distinct t0.id, t0.status from o_customer t0 join o_order u1 on u1.kcustomer_id = t0.id  where u1.status = ?"));
+  }
+
+  @Test
+  public void testWithFetchJoinAndWhere() {
+
+    ResetBasicData.reset();
+
+    Query<Customer> query = Ebean.find(Customer.class).select("id,status")
+      .fetch("orders")
+      // the where on a 'many' (like orders) requires an
+      // additional join and distinct which is independent
+      // of a fetch join (if there is a fetch join)
+      .where().eq("orders.status", Order.Status.NEW)
+      // .where().eq("orders.details.product.name", "Desk")
+      .query();
+
+    query.findList();
+    String sql = sqlOf(query, 3);
+
+    // select distinct t0.id c0, t0.status c1,
+    //        t1.id c2, t1.status c3, t1.order_date c4, t1.ship_date c5, t2.name c6, t1.cretime c7, t1.updtime c8, t1.kcustomer_id c9, t0.id
+    // from o_customer t0
+    // left join o_order t1 on t1.kcustomer_id = t0.id
+    // left join o_customer t2 on t2.id = t1.kcustomer_id
+    // join o_order u1 on u1.kcustomer_id = t0.id
+    // where t1.order_date is not null  and u1.status = ?
+    // order by t0.id; --bind(NEW)
+
+    Assert.assertTrue(sql.contains("select distinct t0.id, t0.status, t1.id, t1.status,"));
+    Assert.assertTrue(sql.contains("left join o_order t1 on "));
+    Assert.assertTrue(sql.contains("join o_order u1 on "));
+    Assert.assertTrue(sql.contains(" u1.status = ?"));
+  }
+
+  @Test
+  public void testUsingForeignKey() {
+
+    ResetBasicData.reset();
+
+    Long productId = 1L;
+
+    Query<Order> query = Ebean.find(Order.class)
+      .where().eq("details.product.id", productId)
+      .orderBy("cretime asc");
+
+    query.findList();
+    String sql = sqlOf(query, 3);
+
+    // select distinct t0.id c0, t0.status c1, t0.order_date c2, t0.ship_date c3, t1.name c4, t0.cretime c5, t0.updtime c6, t0.kcustomer_id c7, t0.cretime
+    // from o_order t0
+    // join o_customer t1 on t1.id = t0.kcustomer_id
+    // join o_order_detail u1 on u1.order_id = t0.id
+    // where u1.product_id = ?
+    // order by t0.cretime; --bind(1)
+
+    Assert.assertTrue(sql.contains("select distinct t0.id, t0.status,"));
+    Assert.assertTrue(sql.contains(" join o_order_detail u1 on u1.order_id = t0.id"));
+    Assert.assertTrue(sql.contains(" where u1.product_id = ?"));
+  }
+
+  /**
+   * Same as previous test but use a reference bean.
+   */
+  @Test
+  public void testUsingForeignKeyReferenceBean() {
+
+    ResetBasicData.reset();
+
+    Product product = Ebean.getReference(Product.class, 1L);
+
+    Query<Order> query = Ebean.find(Order.class)
+      //.fetch("details")
+      .where().eq("details.product", product)
+      .orderBy("cretime asc");
+
+    query.findList();
+    String sql = sqlOf(query, 3);
+
+    // select distinct t0.id c0, t0.status c1, t0.order_date c2, t0.ship_date c3, t1.name c4, t0.cretime c5, t0.updtime c6, t0.kcustomer_id c7, t0.cretime
+    // from o_order t0
+    // join o_customer t1 on t1.id = t0.kcustomer_id
+    // join o_order_detail u1 on u1.order_id = t0.id
+    // where u1.product_id = ?
+    // order by t0.cretime
+
+    Assert.assertTrue(sql.contains("select distinct t0.id, t0.status,"));
+    Assert.assertTrue(sql.contains(" join o_order_detail u1 on u1.order_id = t0.id"));
+    Assert.assertTrue(sql.contains(" where u1.product_id = ?"));
+  }
+
+  /**
+   * Additionally add a fetch join.
+   */
+  @Test
+  public void testUsingForeignKeyAndFetch() {
+
+    ResetBasicData.reset();
+
+    Product product = Ebean.getReference(Product.class, 1L);
+
+    Query<Order> query = Ebean.find(Order.class)
+      .fetch("details")
+      .where().eq("details.product", product)
+      .orderBy("cretime asc");
+
+    query.findList();
+    String sql = sqlOf(query, 3);
+
+    // select distinct t0.id c0, t0.status c1, t0.order_date c2, t0.ship_date c3, t2.name c4, t0.cretime c5, t0.updtime c6, t0.kcustomer_id c7,
+    //        t1.id c8, t1.order_qty c9, t1.ship_qty c10, t1.unit_price c11, t1.cretime c12, t1.updtime c13, t1.order_id c14, t1.product_id c15, t0.cretime, t0.id, t1.id, t1.order_qty, t1.cretime
+    // from o_order t0
+    // join o_customer t2 on t2.id = t0.kcustomer_id
+    // left join o_order_detail t1 on t1.order_id = t0.id
+    // join o_order_detail u1 on u1.order_id = t0.id
+    // where t1.id > 0  and u1.product_id = ?
+    // order by t0.cretime, t0.id, t1.id asc, t1.order_qty asc, t1.cretime desc; --bind(1)
+
+    Assert.assertTrue(sql.contains("select distinct t0.id, t0.status,"));
+    Assert.assertTrue(sql.contains(" join o_order_detail u1 on u1.order_id = t0.id"));
+    Assert.assertTrue(sql.contains(" u1.product_id = ?"));
+
+    // additional join for fetching the many details
+    Assert.assertTrue(sql.contains(" left join o_order_detail t1 on t1.order_id = t0.id"));
+  }
+}