Ejemplo n.º 1
0
  public void testForUpdate() {
    ResetBasicData.reset();

    Query<Order> query =
        Ebean.find(Order.class)
            .setAutofetch(false)
            .setForUpdate(false)
            .setMaxRows(1)
            .order()
            .asc("orderDate")
            .order()
            .desc("id");

    int rc = query.findList().size();
    Assert.assertTrue(rc > 0);
    Assert.assertTrue(!query.getGeneratedSql().toLowerCase().contains("for update"));

    query =
        Ebean.find(Order.class)
            .setAutofetch(false)
            .setForUpdate(true)
            .setMaxRows(1)
            .order()
            .asc("orderDate")
            .order()
            .desc("id");

    rc = query.findList().size();
    Assert.assertTrue(rc > 0);
    Assert.assertTrue(query.getGeneratedSql().toLowerCase().contains("for update"));
  }
  @Test
  public void test() {

    ResetBasicData.reset();

    Query<Order> q =
        Ebean.find(Order.class)
            .fetch("shipments")
            .fetch("details")
            .fetch("details.product")
            .fetch("customer")
            .where()
            .gt("id", 0)
            .query();

    List<Order> list = q.findList();
    String sql = q.getGeneratedSql();

    Assert.assertTrue(!list.isEmpty());
    Assert.assertTrue(sql.contains("join o_customer "));

    Assert.assertFalse(sql.contains("left outer join contact "));
    Assert.assertFalse(sql.contains("left outer join o_order_detail "));
    Assert.assertFalse(sql.contains("left outer join o_product "));
  }
  @Test
  public void test() {
    /*
     * Original conversation:
     * https://groups.google.com/forum/?fromgroups=#!topic/ebean/uuvi1btdCDQ%5B1-25-false%5D
     *
     * This test exposes what may be a general problem with columns required by the order by phrase being omitted from the select.
     * I'm not sure this exposes all causes of the problem.
     */

    MUserType ut = new MUserType("md");
    Ebean.save(ut);
    MUser user1 = new MUser("one");
    user1.setUserType(ut);
    Ebean.save(user1);
    MUser user2 = new MUser("two");
    user2.setUserType(ut);
    Ebean.save(user2);

    MRole roleA = new MRole("A");
    Ebean.save(roleA);
    MRole roleB = new MRole("B");
    Ebean.save(roleB);

    user1.addRole(roleA);
    Ebean.save(user1);
    user2.addRole(roleB);
    Ebean.save(user2);

    Query<MUser> query =
        Ebean.find(MUser.class)
            .fetch("userType", "name")
            .where()
            .eq("roles.roleName", "A")
            .orderBy("userType.name, userName");
    List<MUser> list = query.findList();

    // select distinct t0.userid c0, t0.user_name c1, t1.id c2, t1.name c3
    // from muser t0
    // left outer join muser_type t1 on t1.id = t0.user_type_id
    // join mrole_muser u1z_ on u1z_.muser_userid = t0.userid
    // join mrole u1 on u1.roleid = u1z_.mrole_roleid
    // where u1.role_name = ?
    // order by t1.name, t0.user_name; --bind(A)

    Assert.assertEquals(1, list.size());
    Assert.assertEquals(user1, list.get(0));
    String generatedSql = query.getGeneratedSql();
    Assert.assertTrue(generatedSql.contains("select distinct t0.userid")); // using distinct
    Assert.assertTrue(generatedSql.contains("order by t1.name,")); // name in order by
    Assert.assertTrue(generatedSql.contains("t1.name c")); // name in select

    // repeat with slight variation, not sure this really produces a different execution path
    // this problem also manifests when autofetch eliminates properties from the select that aren't
    // used in the objects
    // still need them to be present for purpose of order by
    // so here I'm "simulating" a scenario where autofetch has dropped userType.name
    query =
        Ebean.find(MUser.class)
            .setAutofetch(false)
            .select("userName")
            .fetch("userType", "name")
            .where()
            .eq("roles.roleName", "A")
            .orderBy("userType.name");
    list = query.findList();

    Assert.assertEquals(1, list.size());
    Assert.assertEquals(user1, list.get(0));

    // select distinct t0.userid c0, t0.user_name c1, t1.id c2, t1.name c3
    // from muser t0
    // left outer join muser_type t1 on t1.id = t0.user_type_id
    // join mrole_muser u1z_ on u1z_.muser_userid = t0.userid
    // join mrole u1 on u1.roleid = u1z_.mrole_roleid
    // where u1.role_name = ?
    // order by t1.name; --bind(A)

    generatedSql = query.getGeneratedSql();
    Assert.assertTrue(generatedSql.contains("select distinct t0.userid")); // using distinct
    Assert.assertTrue(generatedSql.contains("order by t1.name")); // name in order by
    Assert.assertTrue(generatedSql.contains("t1.name c")); // name in select
  }