CCM NG/ccm-cms: Workflows Tab bug hunting

git-svn-id: https://svn.libreccm.org/ccm/ccm_ng@4625 8810af33-2d31-482b-a856-94f89814c4df
2017-03-11 18:20:49 +00:00 · 2017-03-11 18:20:49 +00:00 · 694bc6c307
parent 8ae84e77dd
commit 694bc6c307
15 changed files with 431 additions and 109 deletions
--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/BaseTaskForm.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/BaseTaskForm.java
@ -26,7 +26,7 @@ import com.arsdigita.bebop.form.OptionGroup;
 import com.arsdigita.bebop.form.SingleSelect;
 import com.arsdigita.bebop.form.TextArea;
 import com.arsdigita.bebop.form.TextField;
-import com.arsdigita.bebop.parameters.IntegerParameter;
+import com.arsdigita.bebop.parameters.StringParameter;
 import com.arsdigita.cms.ui.BaseForm;

 import com.arsdigita.globalization.GlobalizedMessage;
@ -68,9 +68,9 @@ class BaseTaskForm extends BaseForm {
        m_workflow = workflow;

        m_name = new Name("name", 200, true);
-        addField(gz("cms.ui.name"), m_name);
+        addField(gz("cms.ui.workflow.task.name"), m_name);

-        m_type = new SingleSelect(new IntegerParameter("task_type"));
+        m_type = new SingleSelect(new StringParameter("task_type"));
        addField(gz("cms.ui.workflow.task.type"), m_type);

        try {
@ -80,7 +80,7 @@ class BaseTaskForm extends BaseForm {
        }

        m_description = new Description("desc", 4000, true);
-        addField(gz("cms.ui.description"), m_description);
+        addField(gz("cms.ui.workflow.task.description"), m_description);

        m_deps = new CheckboxGroup("dep");
        addField(gz("cms.ui.workflow.task.dependencies"), m_deps);
@ -160,7 +160,6 @@ class BaseTaskForm extends BaseForm {
     * new ones in since it is possible that Tasks will fire events when
     * dependencies are added and removed.
     *
-     * XXX domlay
     */
    final void processDependencies(final Task task,
                                   final String[] selectedDependencies) {
--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/BaseWorkflowForm.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/BaseWorkflowForm.java
@ -41,10 +41,10 @@ class BaseWorkflowForm extends BaseForm {
        super(key, message);

        m_title = new Name("name", 200, true);
-        addField(gz("cms.ui.name"), m_title);
+        addField(gz("cms.ui.workflow.name"), m_title);

        m_description = new Description("desc", 4000, true);
-        addField(gz("cms.ui.description"), m_description);
+        addField(gz("cms.ui.workflow.description"), m_description);

        addAction(new Finish());
        addAction(new Cancel());
--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/BaseWorkflowItemPane.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/BaseWorkflowItemPane.java
@ -53,6 +53,7 @@ import org.librecms.workflow.CmsTaskType;

 import java.util.List;
 import java.util.Locale;
+import java.util.Optional;

 abstract class BaseWorkflowItemPane extends BaseItemPane {

@ -81,12 +82,14 @@ abstract class BaseWorkflowItemPane extends BaseItemPane {

        final ActionLink taskAddLink = new ActionLink(new Label(gz(
            "cms.ui.workflow.task.add")));
-        final TaskAddForm taskAddForm = new TaskAddForm(workflowRequestLocal, taskTable
+        final TaskAddForm taskAddForm = new TaskAddForm(workflowRequestLocal,
+                                                        taskTable
                                                            .getRowSelectionModel());

        final ActionLink taskEditLink = new ActionLink(new Label(gz(
            "cms.ui.workflow.task.edit")));
-        final TaskEditForm taskEditForm = new TaskEditForm(workflowRequestLocal, taskRequestLocal);
+        final TaskEditForm taskEditForm = new TaskEditForm(workflowRequestLocal,
+                                                           taskRequestLocal);

        final ActionLink taskDeleteLink = new ActionLink(new Label(gz(
            "cms.ui.workflow.task.delete")));
@ -159,7 +162,8 @@ abstract class BaseWorkflowItemPane extends BaseItemPane {
                final PageState state = event.getPageState();

                final CdiUtil cdiUtil = CdiUtil.createCdiUtil();
-                final TaskManager taskManager = cdiUtil.findBean(TaskManager.class);
+                final TaskManager taskManager = cdiUtil.findBean(
+                    TaskManager.class);

                final Task task = taskRequestLocal.getTask(state);
                taskManager.finish(task);
@ -205,10 +209,22 @@ abstract class BaseWorkflowItemPane extends BaseItemPane {

        @Override
        protected final Object initialValue(final PageState state) {
-            final String key = taskTable.getRowSelectionModel().getSelectedKey(
-                state).toString();

-            return CmsTaskType.valueOf(key);
+            final Long key = Long.parseLong(taskTable.getRowSelectionModel()
+                .getSelectedKey(state).toString());
+
+            final CdiUtil cdiUtil = CdiUtil.createCdiUtil();
+            final TaskRepository taskRepo = cdiUtil.findBean(
+                TaskRepository.class);
+
+            final CmsTask task = (CmsTask) taskRepo
+                .findById(key)
+                .orElseThrow(() -> new IllegalArgumentException(String.format(
+                "No Task with ID %d in the database. "
+                    + "Where did that ID come from?",
+                key)));
+
+            return task;
        }

    }
@ -235,21 +251,27 @@ abstract class BaseWorkflowItemPane extends BaseItemPane {
            protected final List<Property> properties(final PageState state) {
                @SuppressWarnings("unchecked")
                final List<Property> props = super.properties(state);
-                final Workflow workflow = (Workflow) workflowRequestLocal.get(state);
+                @SuppressWarnings("unchecked")
+                final Workflow workflow
+                                   = ((Optional<Workflow>) workflowRequestLocal
+                                      .get(state)).get();

                final KernelConfig kernelConfig = KernelConfig.getConfig();
                final Locale defaultLocale = kernelConfig.getDefaultLocale();

-                props.add(new Property(gz("cms.ui.name"),
-                                       workflow.getName().getValue(defaultLocale)));
+                props.add(new Property(gz("cms.ui.workflow.name"),
+                                       workflow.getName()
+                                           .getValue(defaultLocale)));
                props.add(new Property(
-                    gz("cms.ui.description"),
+                    gz("cms.ui.workflow.description"),
                    workflow.getDescription().getValue(defaultLocale)));
+                if (workflow.getState() == null) {
+                    props.add(new Property(gz("cms.ui.workflow.current_state"),
+                                           gz("cms.ui.workflow.current_state.none")));
+                } else {
                    props.add(new Property(gz("cms.ui.workflow.current_state"),
                                           workflow.getState().toString()));
-                props.add(new Property(gz("cms.ui.workflow.num_tasks"),
-                                       String.valueOf(workflow.getTasks().size())));
-
+                }
                return props;
            }

--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/TaskAddForm.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/TaskAddForm.java
@ -34,12 +34,7 @@ import org.librecms.workflow.CmsTask;
 import com.arsdigita.util.UncheckedWrapperException;

 import org.libreccm.cdi.utils.CdiUtil;
-import org.libreccm.configuration.ConfigurationManager;
 import org.libreccm.workflow.Task;
-import org.libreccm.workflow.TaskManager;
-import org.libreccm.workflow.TaskRepository;
-import org.libreccm.workflow.Workflow;
-import org.libreccm.workflow.WorkflowManager;
 import org.librecms.workflow.CmsTaskType;

 import java.util.List;
@ -52,9 +47,9 @@ import java.util.TooManyListenersException;
 */
 class TaskAddForm extends BaseTaskForm {

-    protected final static String ERROR_MSG
-                                      = "A workflow template with that name already exists in this content "
-                                        + "section.";
+    protected final static String ERROR_MSG = "A workflow template with that "
+                                                  + "name already exists in this "
+                                              + "content section.";

    private final SingleSelectionModel<Long> m_model;

@ -78,7 +73,11 @@ class TaskAddForm extends BaseTaskForm {
        @Override
        public final void prepare(final PrintEvent event) {
            final PageState state = event.getPageState();
-            final List<Task> tasks = m_workflow.getWorkflow(state).getTasks();
+            final CdiUtil cdiUtil = CdiUtil.createCdiUtil();
+            final WorkflowAdminPaneController controller = cdiUtil
+                .findBean(WorkflowAdminPaneController.class);
+            final List<Task> tasks = controller
+                .getTasksForWorkflow(m_workflow.getWorkflow(state));

            final OptionGroup options = (OptionGroup) event.getTarget();
            final KernelConfig kernelConfig = KernelConfig.getConfig();
@ -99,36 +98,16 @@ class TaskAddForm extends BaseTaskForm {

            final PageState state = event.getPageState();

-            final Workflow workflow = m_workflow.getWorkflow(state);
-            final CmsTask task = new CmsTask();
-
            final CdiUtil cdiUtil = CdiUtil.createCdiUtil();
-            final TaskRepository taskRepo = cdiUtil.findBean(
-                TaskRepository.class);
-            final WorkflowManager workflowManager = cdiUtil.findBean(
-                WorkflowManager.class);
-            final TaskManager taskManager = cdiUtil.findBean(TaskManager.class);
-            final ConfigurationManager confManager = cdiUtil.findBean(
-                ConfigurationManager.class);
-            final KernelConfig kernelConfig = confManager.findConfiguration(
-                KernelConfig.class);
-            final Locale defaultLocale = kernelConfig.getDefaultLocale();
+            final WorkflowAdminPaneController controller = cdiUtil
+                .findBean(WorkflowAdminPaneController.class);

-            task.getLabel().addValue(defaultLocale,
-                                     ((String) m_name.getValue(state)));
-            task.getDescription().addValue(
-                defaultLocale,
-                ((String) m_description.getValue(state)));
-            
-            final CmsTaskType taskType = CmsTaskType.valueOf((String) m_type.getValue(state));
-            task.setTaskType(taskType);
-            task.setActive(true);
-
-            taskRepo.save(task);
-
-            taskManager.addTask(workflow, task);
-            
-            processDependencies(task, (String[]) m_deps.getValue(state));
+            final CmsTask task = controller.addTask(
+                m_workflow.getWorkflow(state),
+                (String) m_name.getValue(state),
+                (String) m_description.getValue(state),
+                CmsTaskType.valueOf((String) m_type.getValue(state)),
+                (String[]) m_deps.getValue(state));

            m_model.setSelectedKey(state, task.getTaskId());
        }
--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/TaskItemPane.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/TaskItemPane.java
@ -317,17 +317,30 @@ final class TaskItemPane extends BaseItemPane {
                                           defaultLocale)));
                props.add(new Property(gz("cms.ui.workflow.task.dependencies"),
                                       deps(task)));
+                if (task.getTaskState() == null) {
+                    props.add(new Property(gz("cms.ui.workflow.task.state"),
+                                           gz("cms.ui.workflow.task.state.none")));
+                } else {
                    props.add(new Property(gz("cms.ui.workflow.task.state"),
                                           task.getTaskState().toString()));
+                }
+                if (task.isLocked()) {
                    props.add(new Property(gz("cms.ui.workflow.task.locked"),
-                                       task.isLocked()
-                                           ? lz("cms.ui.yes") : lz("cms.ui.no")));
+                                           gz("cms.ui.yes")));
+                } else {
+                    props.add(new Property(gz("cms.ui.workflow.task.locked"),
+                                           gz("cms.ui.no")));
+                }

                return props;
            }

            private String deps(final CmsTask task) {
-                final List<Task> dependencies = task.getDependsOn();
+                final CdiUtil cdiUtil = CdiUtil.createCdiUtil();
+                final WorkflowAdminPaneController controller = cdiUtil
+                    .findBean(WorkflowAdminPaneController.class);
+
+                final List<Task> dependencies = controller.getDependencies(task);
                final KernelConfig kernelConfig = KernelConfig.getConfig();
                final Locale defaultLocale = kernelConfig.getDefaultLocale();

--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/TaskTableModelBuilder.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/TaskTableModelBuilder.java
@ -37,6 +37,7 @@ import java.util.List;
 import java.util.Map;

 import org.apache.logging.log4j.Logger;
+import org.libreccm.cdi.utils.CdiUtil;

 class TaskTableModelBuilder extends AbstractTableModelBuilder {

@ -64,7 +65,14 @@ class TaskTableModelBuilder extends AbstractTableModelBuilder {
        private Map m_dependencies = new HashMap();

        private Model(final Workflow workflow) {
-            final Iterator<Task> tasksIter = workflow.getTasks().iterator();
+
+            final CdiUtil cdiUtil = CdiUtil.createCdiUtil();
+            final WorkflowAdminPaneController controller = cdiUtil.findBean(
+                WorkflowAdminPaneController.class);
+
+            final Iterator<Task> tasksIter = controller
+                .getTasksForWorkflow(workflow)
+                .iterator();
            GraphSet g = new GraphSet();

            while (tasksIter.hasNext()) {
@ -100,7 +108,7 @@ class TaskTableModelBuilder extends AbstractTableModelBuilder {
                LOGGER.error("found possible loop in tasks for " + workflow);
                break;
            }
-            Assert.assertEquals(workflow.getTasks().size(), tasks.size());
+
            m_tasks = tasks.iterator();
        }

--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowAddForm.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowAddForm.java
@ -24,16 +24,9 @@ import com.arsdigita.bebop.SingleSelectionModel;
 import com.arsdigita.bebop.event.FormProcessListener;
 import com.arsdigita.bebop.event.FormSectionEvent;
 import com.arsdigita.cms.CMS;
-import com.arsdigita.kernel.KernelConfig;

-import org.librecms.contentsection.ContentSection;
 import org.libreccm.workflow.WorkflowTemplate;
 import org.libreccm.cdi.utils.CdiUtil;
-import org.libreccm.configuration.ConfigurationManager;
-import org.libreccm.workflow.WorkflowTemplateRepository;
-import org.librecms.contentsection.ContentSectionManager;
-
-import java.util.Locale;

 /**
 * @author Uday Mathur
@ -58,32 +51,44 @@ class WorkflowAddForm extends BaseWorkflowForm {
        @Override
        public final void process(final FormSectionEvent event)
            throws FormProcessException {
+
            final PageState state = event.getPageState();

            final String label = (String) m_title.getValue(state);
            final String description = (String) m_description.getValue(state);

            final CdiUtil cdiUtil = CdiUtil.createCdiUtil();
-            final WorkflowTemplateRepository workflowTemplateRepository = cdiUtil.findBean(
-                WorkflowTemplateRepository.class);
-            final ContentSectionManager sectionManager = cdiUtil.findBean(
-                ContentSectionManager.class);
-            final ConfigurationManager confManager = cdiUtil.findBean(ConfigurationManager.class);
-            final KernelConfig kernelConfig = confManager.findConfiguration(
-                KernelConfig.class);
-            final Locale defaultLocale = kernelConfig.getDefaultLocale();
+            final WorkflowAdminPaneController controller = cdiUtil.findBean(
+                WorkflowAdminPaneController.class);
+//            final WorkflowTemplateRepository workflowTemplateRepository
+//                                             = cdiUtil.findBean(
+//                    WorkflowTemplateRepository.class);
+//            final ContentSectionManager sectionManager = cdiUtil.findBean(
+//                ContentSectionManager.class);
+//            final ConfigurationManager confManager = cdiUtil.findBean(
+//                ConfigurationManager.class);
+//            final KernelConfig kernelConfig = confManager.findConfiguration(
+//                KernelConfig.class);
+//            final Locale defaultLocale = kernelConfig.getDefaultLocale();
+//
+//            final WorkflowTemplate workflow = new WorkflowTemplate();
+//            workflow.getName().addValue(defaultLocale, label);
+//            workflow.getDescription().addValue(defaultLocale, description);
+//
+//            workflowTemplateRepository.save(workflow);
+//
+//            final ContentSection section = CMS.getContext().getContentSection();
+//            sectionManager
+//                .addWorkflowTemplateToContentSection(workflow, section);

-            final WorkflowTemplate workflow = new WorkflowTemplate();
-            workflow.getName().addValue(defaultLocale, label);
-            workflow.getDescription().addValue(defaultLocale, description);
-            
-            workflowTemplateRepository.save(workflow);
-
-            final ContentSection section =
-                CMS.getContext().getContentSection();
-            sectionManager.addWorkflowTemplateToContentSection(workflow, section);
+            final WorkflowTemplate workflow = controller.createWorkflow(
+                CMS.getContext().getContentSection(),
+                label,
+                description);

            m_model.setSelectedKey(state, workflow.getWorkflowId());
        }
+
    }
+
 }
--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowAdminPaneController.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowAdminPaneController.java
@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2017 LibreCCM Foundation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package com.arsdigita.cms.ui.workflow;
+
+import com.arsdigita.kernel.KernelConfig;
+import com.arsdigita.util.UncheckedWrapperException;
+
+import org.libreccm.cdi.utils.CdiUtil;
+import org.libreccm.configuration.ConfigurationManager;
+import org.libreccm.workflow.CircularTaskDependencyException;
+import org.libreccm.workflow.Task;
+import org.libreccm.workflow.TaskManager;
+import org.libreccm.workflow.TaskRepository;
+import org.libreccm.workflow.Workflow;
+import org.libreccm.workflow.WorkflowRepository;
+import org.libreccm.workflow.WorkflowTemplate;
+import org.libreccm.workflow.WorkflowTemplateMarshaller;
+import org.libreccm.workflow.WorkflowTemplateRepository;
+import org.librecms.contentsection.ContentSection;
+import org.librecms.contentsection.ContentSectionManager;
+import org.librecms.contentsection.ContentSectionRepository;
+import org.librecms.workflow.CmsTask;
+import org.librecms.workflow.CmsTaskType;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+import javax.enterprise.context.RequestScoped;
+import javax.inject.Inject;
+import javax.transaction.Transactional;
+
+/**
+ *
+ * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
+ */
+@RequestScoped
+public class WorkflowAdminPaneController {
+
+    @Inject
+    private ConfigurationManager confManager;
+
+    @Inject
+    private ContentSectionRepository sectionRepo;
+
+    @Inject
+    private ContentSectionManager sectionManager;
+
+    @Inject
+    private WorkflowRepository workflowRepo;
+
+    @Inject
+    private WorkflowTemplateRepository workflowTemplateRepo;
+
+    @Inject
+    private TaskRepository taskRepo;
+
+    @Inject
+    private TaskManager taskManager;
+
+    @Transactional(Transactional.TxType.REQUIRED)
+    public List<WorkflowTemplate> retrieveWorkflows(final ContentSection section) {
+
+        final ContentSection contentSection = sectionRepo
+            .findById(section.getObjectId())
+            .orElseThrow(() -> new IllegalArgumentException(String.format(
+            "No ContentSection with ID %d in the database. "
+                + "Where did that ID come from?",
+            section.getObjectId())));
+
+        return new ArrayList<>(contentSection.getWorkflowTemplates());
+    }
+
+    @Transactional(Transactional.TxType.REQUIRED)
+    public WorkflowTemplate createWorkflow(final ContentSection section,
+                                           final String name,
+                                           final String desc) {
+
+        final KernelConfig kernelConfig = confManager.findConfiguration(
+            KernelConfig.class);
+        final Locale defaultLocale = kernelConfig.getDefaultLocale();
+
+        final ContentSection contentSection = sectionRepo
+            .findById(section.getObjectId())
+            .orElseThrow(() -> new IllegalArgumentException(String.format(
+            "No ContentSection with ID %d in the database. "
+                + "Where did that ID come from?",
+            section.getObjectId())));
+
+        final WorkflowTemplate workflowTemplate = new WorkflowTemplate();
+        workflowTemplate.getName().addValue(defaultLocale, name);
+        workflowTemplate.getDescription().addValue(defaultLocale, desc);
+
+        workflowTemplateRepo.save(workflowTemplate);
+
+        sectionManager.addWorkflowTemplateToContentSection(workflowTemplate,
+                                                           contentSection);
+
+        return workflowTemplate;
+    }
+
+    @Transactional(Transactional.TxType.REQUIRED)
+    public List<Task> getTasksForWorkflow(final Workflow workflow) {
+
+        final Workflow theWorkflow = workflowRepo
+            .findById(workflow.getWorkflowId())
+            .orElseThrow(() -> new IllegalArgumentException(String.format(
+            "No Workflow with ID %d in the database. Where did that ID come from?",
+            workflow.getWorkflowId())));
+
+        return new ArrayList<>(theWorkflow.getTasks());
+    }
+
+    @Transactional(Transactional.TxType.REQUIRED)
+    public CmsTask addTask(final Workflow workflow,
+                        final String name,
+                        final String desc,
+                        final CmsTaskType type,
+                        final String[] deps) {
+        final KernelConfig kernelConfig = confManager
+            .findConfiguration(KernelConfig.class);
+        final Locale defaultLocale = kernelConfig.getDefaultLocale();
+
+        final Workflow theWorkflow = workflowRepo
+            .findById(workflow.getWorkflowId())
+            .orElseThrow(() -> new IllegalArgumentException(String.format(
+            "No Workflow with ID %d in the database. "
+                + "Where did that ID come from?",
+            workflow.getWorkflowId())));
+        final CmsTask task = new CmsTask();
+
+        task.getLabel().addValue(defaultLocale, name);
+        task.getDescription().addValue(defaultLocale, desc);
+        task.setTaskType(type);
+        task.setActive(true);
+
+        taskRepo.save(task);
+
+        taskManager.addTask(theWorkflow, task);
+
+        processDependencies(task, deps);
+
+        return task;
+    }
+
+    /**
+     * This method decides which dependencies have to be removed and which ones
+     * newly added. Unfortunately we cannot just do "remove all", and add the
+     * new ones in since it is possible that Tasks will fire events when
+     * dependencies are added and removed.
+     *
+     */
+    private void processDependencies(final Task task,
+                                     final String[] selectedDependencies) {
+        final List<Task> dependencies = task.getDependentTasks();
+        final Map<Long, Task> toAdd = new HashMap<>();
+        // Everything is to be removed unless it is in the array.
+        final Map<Long, Task> toRemove = dependencies.stream()
+            .collect(Collectors.toMap(Task::getTaskId,
+                                      dependency -> dependency));
+
+        Long selectedId;
+        Object addedTask;
+        if (selectedDependencies != null) {
+            for (String selectedDependency : selectedDependencies) {
+                selectedId = Long.parseLong(selectedDependency);
+                addedTask = toRemove.remove(selectedId);
+                if (addedTask == null) {
+                    toAdd.put(selectedId, taskRepo.findById(selectedId).get());
+                }
+            }
+        }
+
+        for (final Task taskToRemove : toRemove.values()) {
+            taskManager.removeDependentTask(task, taskToRemove);
+        }
+
+        for (final Task taskToAdd : toAdd.values()) {
+            try {
+                taskManager.addDependentTask(task, taskToAdd);
+            } catch (CircularTaskDependencyException ex) {
+                throw new UncheckedWrapperException(ex);
+            }
+        }
+    }
+    
+    @Transactional(Transactional.TxType.REQUIRED)
+    public List<Task> getDependencies(final Task task) {
+        
+        final Task theTask = taskRepo
+            .findById(task.getTaskId())
+        .orElseThrow(() -> new IllegalArgumentException(String.format(
+            "No Task with ID %d in the database. Where did that ID come from?",
+            task.getTaskId())));
+        
+        return new ArrayList<>(theTask.getDependsOn());
+    }
+
+}
--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowEditForm.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowEditForm.java
@ -94,7 +94,8 @@ class WorkflowEditForm extends BaseWorkflowForm {
            final Locale defaultLocale = kernelConfig.getDefaultLocale();

            m_title.setValue(state, workflow.getName().getValue(defaultLocale));
-            m_description.setValue(state, workflow.getDescription());
+            m_description.setValue(state, workflow.getDescription().getValue(
+                                   defaultLocale));
        }

    }
--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowListModelBuilder.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowListModelBuilder.java
@ -25,10 +25,11 @@ import com.arsdigita.bebop.list.ListModel;
 import com.arsdigita.cms.CMS;
 import com.arsdigita.kernel.KernelConfig;

+import org.libreccm.cdi.utils.CdiUtil;
 import org.librecms.contentsection.ContentSection;
 import org.libreccm.workflow.WorkflowTemplate;
-import org.libreccm.workflow.Task;

+import java.util.Iterator;
 import java.util.Locale;

 /**
@ -48,31 +49,39 @@ class WorkflowListModelBuilder extends AbstractListModelBuilder {

    private class Model implements ListModel {

-        private final java.util.List<WorkflowTemplate> templates;
-        private int index = -1;
+        private final Iterator<WorkflowTemplate> templates;
+        private WorkflowTemplate currentTemplate;

        public Model() {
-            final ContentSection section = CMS.getContext().getContentSection();
+            final CdiUtil cdiUtil = CdiUtil.createCdiUtil();
+            final WorkflowAdminPaneController controller = cdiUtil.findBean(
+                WorkflowAdminPaneController.class);

-            templates = section.getWorkflowTemplates();
+            templates = controller
+                .retrieveWorkflows(CMS.getContext().getContentSection())
+                .iterator();
        }

        @Override
        public boolean next() {
-            index++;
-            return index < templates.size();
+            if (templates.hasNext()) {
+                currentTemplate = templates.next();
+                return true;
+            } else {
+                return false;
+            }
        }

        @Override
        public Object getElement() {
            final KernelConfig kernelConfig = KernelConfig.getConfig();
            final Locale defaultLocale = kernelConfig.getDefaultLocale();
-            return templates.get(index).getName().getValue(defaultLocale);
+            return currentTemplate.getName().getValue(defaultLocale);
        }

        @Override
        public String getKey() {
-            return Long.toString(templates.get(index).getWorkflowId());
+            return Long.toString(currentTemplate.getWorkflowId());
        }

    }
--- a/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowRequestLocal.java
+++ b/ccm-cms/src/main/java/com/arsdigita/cms/ui/workflow/WorkflowRequestLocal.java
@ -20,11 +20,14 @@ package com.arsdigita.cms.ui.workflow;

 import com.arsdigita.bebop.PageState;
 import com.arsdigita.bebop.RequestLocal;
+
 import org.libreccm.workflow.Workflow;

+import java.util.Optional;
+
 public abstract class WorkflowRequestLocal extends RequestLocal {

    public final Workflow getWorkflow(final PageState state) {
-        return (Workflow) get(state);
+        return ((Optional<Workflow>) get(state)).get();
    }
 }
--- a/ccm-cms/src/main/resources/org/librecms/CmsResources.properties
+++ b/ccm-cms/src/main/resources/org/librecms/CmsResources.properties
@ -146,3 +146,22 @@ cms.ui.finish=Finish
 cms.ui.save=Save
 cms.ui.role.name_not_unique=A role with this name already exists.
 cms.ui.role.add=Add role
+cms.ui.workflow.add=Add workflow
+cms.ui.workflow.intro=Select a workflow or create a new one
+cms.ui.workflow.name=Name
+cms.ui.workflow.description=Description
+cms.ui.workflow.details=Workflow Properties
+cms.ui.workflow.current_state=Current state
+cms.ui.workflow.current_state.none=None
+cms.ui.workflow.edit=Edit
+cms.ui.workflow.delete=Delete
+cms.ui.workflow.tasks=Tasks
+cms.ui.workflow.task.none=No tasks
+cms.ui.workflow.task.add=Add task
+cms.ui.workflow.task.name=Name
+cms.ui.workflow.task.type=Type
+cms.ui.workflow.task.description=Description
+cms.ui.workflow.task.dependencies=Dependencies
+cms.workflow.task_type.AUTHOR=Author
+cms.workflow.task_type.EDIT=Edit
+cms.workflow.task_type.DEPLOY=Deploy
--- a/ccm-cms/src/main/resources/org/librecms/CmsResources_de.properties
+++ b/ccm-cms/src/main/resources/org/librecms/CmsResources_de.properties
@ -145,3 +145,22 @@ cms.ui.finish=Beenden
 cms.ui.save=Speichern
 cms.ui.role.name_not_unique=Eine Rolle mit diesem Namen existiert bereits.
 cms.ui.role.add=Rolle hinzuf\u00fcgen
+cms.ui.workflow.add=Arbeitsablauf hinzuf\u00fcgen
+cms.ui.workflow.intro=W\u00e4hlen Sie einen bestehenden Arbeitsablauf oder erstellen Sie einen neuen Arbeitsablauf
+cms.ui.workflow.name=Name
+cms.ui.workflow.description=Beschreibung
+cms.ui.workflow.details=Arbeitsablauf Eigenschaften
+cms.ui.workflow.current_state=Aktueller Status
+cms.ui.workflow.current_state.none=Keiner
+cms.ui.workflow.edit=Bearbeiten
+cms.ui.workflow.delete=L\u00f6schen
+cms.ui.workflow.tasks=Aufgaben
+cms.ui.workflow.task.none=Keine Aufgaben
+cms.ui.workflow.task.add=Aufgabe hinzuf\u00fcgen
+cms.ui.workflow.task.name=Name
+cms.ui.workflow.task.type=Typ
+cms.ui.workflow.task.description=Beschreibung
+cms.ui.workflow.task.dependencies=Abh\u00e4ngigkeiten
+cms.workflow.task_type.AUTHOR=Verfassen
+cms.workflow.task_type.EDIT=Bearbeiten
+cms.workflow.task_type.DEPLOY=Ver\u00f6ffentlichen
--- a/ccm-cms/src/main/resources/org/librecms/CmsResources_fr.properties
+++ b/ccm-cms/src/main/resources/org/librecms/CmsResources_fr.properties
@ -114,3 +114,22 @@ cms.ui.finish=Finish
 cms.ui.save=Save
 cms.ui.role.name_not_unique=A role with this name already exists.
 cms.ui.role.add=Add role
+cms.ui.workflow.add=Add workflow
+cms.ui.workflow.intro=Select a workflow or create a new one
+cms.ui.workflow.name=Name
+cms.ui.workflow.description=Description
+cms.ui.workflow.details=Workflow Properties
+cms.ui.workflow.current_state=Current state
+cms.ui.workflow.current_state.none=None
+cms.ui.workflow.edit=Edit
+cms.ui.workflow.delete=Delete
+cms.ui.workflow.tasks=Tasks
+cms.ui.workflow.task.none=No tasks
+cms.ui.workflow.task.add=Add task
+cms.ui.workflow.task.name=Name
+cms.ui.workflow.task.type=Type
+cms.ui.workflow.task.description=Description
+cms.ui.workflow.task.dependencies=Dependencies
+cms.workflow.task_type.AUTHOR=Author
+cms.workflow.task_type.EDIT=Edit
+cms.workflow.task_type.DEPLOY=Deploy
--- a/ccm-core/src/main/java/org/libreccm/workflow/WorkflowTemplateRepository.java
+++ b/ccm-core/src/main/java/org/libreccm/workflow/WorkflowTemplateRepository.java
@ -20,6 +20,8 @@ package org.libreccm.workflow;

 import org.libreccm.core.AbstractEntityRepository;

+import java.util.UUID;
+
 import javax.enterprise.context.RequestScoped;

 /**
@ -41,4 +43,10 @@ public class WorkflowTemplateRepository
        return template.getWorkflowId() == 0;
    }
    
+    @Override
+    public void initNewEntity(final WorkflowTemplate workflowTemplate) {
+        super.initNewEntity(workflowTemplate);
+        workflowTemplate.setUuid(UUID.randomUUID().toString());
+    }
+
 }