package org.tests.query;
import io.ebean.BaseTestCase;
import io.ebean.Ebean;
import io.ebean.Query;
import io.ebeaninternal.api.SpiQuery;
import org.tests.model.basic.Contact;
import org.tests.model.basic.Customer;
import org.tests.model.basic.OrderShipment;
import org.tests.model.basic.ResetBasicData;
import org.junit.Assert;
import org.junit.Test;
import java.util.List;
public class TestQueryFetchManyTwoDeep extends BaseTestCase {
@Test
public void testFetchOneToManyWithChildOneToMany() {
ResetBasicData.reset();
// test that join to order.details is not included in the initial query (included in query join)
Query<Customer> query = Ebean.find(Customer.class)
.setAutoTune(false)
.fetch("orders")
.fetch("orders.details");
SpiQuery<?> spiQuery = (SpiQuery<?>) query;
spiQuery.setLogSecondaryQuery(true);
List<Customer> list = query.findList();
Assert.assertTrue("has rows", !list.isEmpty());
Assert.assertTrue(query.getGeneratedSql().contains("from o_customer t0 "));
Assert.assertTrue(query.getGeneratedSql().contains("left join o_order t1 on t1.kcustomer_id = t0.id"));
Assert.assertTrue(query.getGeneratedSql().contains("left join o_customer t2 on t2.id = t1.kcustomer_id"));
Assert.assertFalse(query.getGeneratedSql().contains("join or_order_ship"));
//select t0.id c0, t0.status c1, t0.name c2, t0.smallnote c3, t0.anniversary c4, t0.cretime c5, t0.updtime c6, t0.billing_address_id c7, t0.shipping_address_id c8, t1.id c9, t1.status c10, t1.order_date c11, t1.ship_date c12,
// t2.name c13, t1.cretime c14, t1.updtime c15, t1.kcustomer_id c16
// 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
// where t1.order_date is not null order by t0.id; --bind()
List<SpiQuery<?>> secondaryQueries = spiQuery.getLoggedSecondaryQueries();
Assert.assertNotNull(secondaryQueries);
Assert.assertEquals(1, secondaryQueries.size());
SpiQuery<?> secondaryQuery = secondaryQueries.get(0);
String secondarySql = secondaryQuery.getGeneratedSql();
Assert.assertTrue(secondarySql.contains("from o_order_detail t0 where t0.id > 0 and (t0.order_id) in"));
// select t0.order_id c0, t0.id c1, t0.order_qty c2, t0.ship_qty c3, t0.unit_price c4, t0.cretime c5, t0.updtime c6, t0.order_id c7, t0.product_id c8
// from o_order_detail t0
// where (t0.order_id) in (?,?,?,?,?)
}
@Test
public void testFetchOptionalManyToOneThenDownToMany() {
ResetBasicData.reset();
// test that join to order.details is not included
Query<OrderShipment> shipQuery = Ebean.find(OrderShipment.class)
.setAutoTune(false)
.fetch("order")
.fetch("order.details");
List<OrderShipment> shipList = shipQuery.findList();
Assert.assertTrue("has rows", !shipList.isEmpty());
String generatedSql = shipQuery.getGeneratedSql();
// select ...
// from or_order_ship t0
// left join o_order t1 on t1.id = t0.order_id
// left join o_customer t3 on t3.id = t1.kcustomer_id
// left join o_order_detail t2 on t2.order_id = t1.id
// where t2.id > 0 ; --bind()
Assert.assertTrue(generatedSql.contains("from or_order_ship t0"));
// Relationship from OrderShipment to Order is optional so outer join here
Assert.assertTrue(generatedSql.contains("left join o_order t1 on t1.id = t0.order_id"));
Assert.assertTrue(generatedSql.contains("left join o_customer t3 on t3.id = t1.kcustomer_id"));
Assert.assertTrue(generatedSql.contains("left join o_order_detail t2 on t2.order_id = t1.id"));
// If OrderShipment to Order is not optional you get inner joins up to o_order_detail (which is a many)
// select ...
// from or_order_ship t0
// join o_order t1 on t1.id = t0.order_id
// join o_customer t3 on t3.id = t1.kcustomer_id
// left join o_order_detail t2 on t2.order_id = t1.id
// where t2.id > 0 ; --bind()
}
@Test
public void testFetchMandatoryManyToOneThenDownToMany() {
ResetBasicData.reset();
// test that join to order.details is not included
Query<Contact> query = Ebean.find(Contact.class)
.setAutoTune(false)
.fetch("customer")
.fetch("customer.orders");
List<Contact> shipList = query.findList();
Assert.assertTrue("has rows", !shipList.isEmpty());
String generatedSql = query.getGeneratedSql();
// select ...
// from contact t0
// join o_customer t1 on t1.id = t0.customer_id
// left join o_order t2 on t2.kcustomer_id = t1.id
// left join o_customer t3 on t3.id = t2.kcustomer_id
// where t2.order_date is not null ; --bind()
Assert.assertTrue(generatedSql.contains("from contact t0 "));
// Relationship from Contact to Customer is mandatory so inner join here
Assert.assertTrue(generatedSql.contains("join o_customer t1 on t1.id = t0.customer_id"));
// outer join on many relationship 'orders'
Assert.assertTrue(generatedSql.contains("left join o_order t2 on t2.kcustomer_id = t1.id"));
}
@Test
public void testFetchMandatoryManyToOneWithPredicate() {
ResetBasicData.reset();
// test that join to order.details is not included
Query<Contact> query = Ebean.find(Contact.class)
.setAutoTune(false)
.fetch("customer")
.where().ilike("customer.name", "Rob%")
.query();
List<Contact> list = query.findList();
Assert.assertTrue("has rows", !list.isEmpty());
String generatedSql = query.getGeneratedSql();
// select ...
// from contact t0
// join o_customer t1 on t1.id = t0.customer_id
// where lower(t1.name) like ? ; --bind(rob%)
Assert.assertTrue(generatedSql.contains("from contact t0 "));
Assert.assertTrue(generatedSql.contains("join o_customer t1 on t1.id = t0.customer_id"));
Assert.assertTrue(generatedSql.contains("where lower(t1.name) like ?"));
}
}