Fix for #158 - Add support for using setDistinct (by excluding id property from generated sql)

src/test/java/com/avaje/tests/query/other/TestQueryDistinct.java

@@ -0,0 +1,72 @@
+package com.avaje.tests.query.other;
+
+import java.util.List;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.avaje.ebean.BaseTestCase;
+import com.avaje.ebean.Ebean;
+import com.avaje.ebean.Query;
+import com.avaje.ebean.bean.EntityBean;
+import com.avaje.ebean.bean.EntityBeanIntercept;
+import com.avaje.tests.model.basic.Customer;
+import com.avaje.tests.model.basic.ResetBasicData;
+
+public class TestQueryDistinct extends BaseTestCase {
+
+  @Test
+  public void test() {
+    
+    ResetBasicData.reset();
+    
+    Query<Customer> query = Ebean.find(Customer.class)
+      .setUseCache(false)
+      .setDistinct(true)
+      .select("name");
+    
+    List<Customer> customers = query.findList();
+    
+    String generatedSql = query.getGeneratedSql();
+    Assert.assertTrue(generatedSql.contains("select distinct t0.name c0 from o_customer t0"));
+    
+    for (Customer customer : customers) {
+      
+      EntityBeanIntercept ebi = ((EntityBean)customer)._ebean_getIntercept();
+      Assert.assertTrue(ebi.isDisableLazyLoad());
+      Assert.assertNull(ebi.getPersistenceContext());
+      
+      // lazy loading disabled
+      Assert.assertNull(customer.getId());
+      Assert.assertNull(customer.getAnniversary());
+    }
+  }
+  
+  
+  @Test
+  public void testDistinctStatus() {
+    
+    ResetBasicData.reset();
+    
+    Query<Customer> query = Ebean.find(Customer.class)
+      .setUseCache(false)
+      .setDistinct(true)
+      .select("status")
+      .where().isNotNull("status").query();
+    
+    List<Customer> customers = query.findList();
+    
+    String generatedSql = query.getGeneratedSql();
+    Assert.assertTrue(generatedSql.contains("select distinct t0.status c0 from o_customer t0"));
+    
+    for (Customer customer : customers) {
+      
+      Assert.assertNotNull(customer.getStatus());
+      
+      // lazy loading disabled
+      Assert.assertNull(customer.getId());
+      Assert.assertNull(customer.getAnniversary());
+    }
+  }
+  
+}