OO-1871: load the project with all its dependencies ( but the custom fields )

src/main/java/org/olat/course/nodes/projectbroker/service/ProjectDAO.java

+/**
+ * <a href="http://www.openolat.org">
+ * OpenOLAT - Online Learning and Training</a><br>
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License"); <br>
+ * you may not use this file except in compliance with the License.<br>
+ * You may obtain a copy of the License at the
+ * <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache homepage</a>
+ * <p>
+ * Unless required by applicable law or agreed to in writing,<br>
+ * software distributed under the License is distributed on an "AS IS" BASIS, <br>
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
+ * See the License for the specific language governing permissions and <br>
+ * limitations under the License.
+ * <p>
+ * Initial code contributed and copyrighted by<br>
+ * frentix GmbH, http://www.frentix.com
+ * <p>
+ */
+package org.olat.course.nodes.projectbroker.service;
+
+import java.util.List;
+
+import org.olat.core.commons.persistence.DB;
+import org.olat.course.nodes.projectbroker.datamodel.Project;
+import org.olat.course.nodes.projectbroker.datamodel.ProjectImpl;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ * Project queries must migrate here.
+ * 
+ * 
+ * Initial date: 01.02.2016<br>
+ * @author srosse, stephane.rosse@frentix.com, http://www.frentix.com
+ *
+ */
+@Service
+public class ProjectDAO {
+	@Autowired
+	private DB dbInstance;
+	
+	/**
+	 * The method load the project or return null if not found. The query fetch
+	 * all dependencies but the custom fields.
+	 * 
+	 * @param projectKey
+	 * @return The project
+	 */
+	public Project loadProject(Long projectKey) {
+		StringBuilder sb = new StringBuilder();
+		sb.append("select project from ").append(ProjectImpl.class.getName()).append(" as project ")
+		  .append(" left join fetch project.projectGroup pGroup")
+		  .append(" left join fetch pGroup.baseGroup bGroup")
+		  .append(" left join fetch project.candidateGroup cGroup")
+		  .append(" left join fetch project.projectBroker pBroker")
+		  .append(" where project.key=:projectKey");
+		
+		List<Project> projects = dbInstance.getCurrentEntityManager()
+				.createQuery(sb.toString(), Project.class)
+				.setParameter("projectKey", projectKey)
+				.getResultList();
+		return projects == null || projects.isEmpty() ? null : projects.get(0);
+	}
+
+}

src/main/java/org/olat/course/nodes/projectbroker/service/ProjectGroupManagerImpl.java

@@ -68,6 +68,8 @@ public class ProjectGroupManagerImpl extends BasicManager implements ProjectGrou
 	@Autowired
 	private DB dbInstance;
 	@Autowired
+	private ProjectDAO projectDao;
+	@Autowired
 	private BaseSecurity securityManager;
 	@Autowired
 	private ProjectBrokerManager projectBrokerManager;
@@ -260,7 +262,7 @@ public class ProjectGroupManagerImpl extends BasicManager implements ProjectGrou
 
 	@Override
 	public BusinessGroupAddResponse acceptCandidates(final List<Identity> identities, final Project project, final Identity actionIdentity, final boolean autoSignOut, final boolean isAcceptSelectionManually) {
-		final Project reloadedProject = (Project) dbInstance.loadObject(project, true);
+		final Project reloadedProject = projectDao.loadProject(project.getKey());
 		final BusinessGroupAddResponse response = new BusinessGroupAddResponse();
 		BusinessGroupAddResponse state = businessGroupService.addParticipants(actionIdentity, null, identities, reloadedProject.getProjectGroup(), null);
 		response.getAddedIdentities().addAll(state.getAddedIdentities());