add a timeline in view pages for viewing task transitions

Controller/SingleTaskController.php

@@ -133,8 +133,12 @@ class SingleTaskController extends Controller
             throw $this->createNotFoundException('Unable to find Task entity.');
         }
 
+        $timeline = $this->get('chill.main.timeline_builder')
+            ->getTimelineHTML('task', array('task' => $task));
+
         return $this->render('ChillTaskBundle:SingleTask:show.html.twig', array(
             'task'      => $task,
+            'timeline'  => $timeline
         ));
     }
 

Resources/config/services/timeline.yml

@@ -5,4 +5,9 @@ services:
             $registry: '@Symfony\Component\Workflow\Registry'
         tags:
             - { name: 'chill.timeline', context: 'person' }
-            
+    Chill\TaskBundle\Timeline\SingleTaskTaskLifeCycleEventTimelineProvider:
+        arguments:
+            $em: '@Doctrine\ORM\EntityManagerInterface'
+            $registry: '@Symfony\Component\Workflow\Registry'
+        tags:
+            - { name: 'chill.timeline', context: 'task' }

Resources/views/SingleTask/show.html.twig

@@ -81,6 +81,11 @@
         {% endif %}
     </dl>
 
+    {% if timeline is not null %}
+        <h3>{{"Timeline"|trans}}</h3>
+        {{ timeline|raw }}
+    {% endif %}
+
     <ul class="record_actions">
         <li class="cancel">
             <a class="sc-button bt-cancel" href="{{ path('chill_task_singletask_list', { 'person_id': person.id } ) }}">
@@ -114,5 +119,4 @@
 
     </ul>
 
-
 {% endblock %}

Resources/views/Timeline/single_task_transition_task_context.html.twig

@@ -0,0 +1,13 @@
+<div>
+    <h3 class="single-line">
+        {{ event.datetime|localizeddate('long', 'short') }}
+        <span class="task"> / {{ 'Task'|trans }}</span> /
+        {% if transition is not null %}
+            <span class="statement">{{ task_workflow_metadata(event.task, 'transition.sentence', transition)|trans({ '%user%': event.author.username }) }}</span>
+            <span>"{{ event.task.title }}"</span>
+        {% else %}
+            <span class="statement">{{ '%user% has created the task'|trans({ '%user%': event.author.username }) }}</span>
+            <span>"{{ event.task.title }}"</span>
+        {% endif %}
+    </h3>
+</div>

Timeline/SingleTaskTaskLifeCycleEventTimelineProvider.php

@@ -0,0 +1,132 @@
+<?php
+/*
+ * Copyright (C) 2018 Champs Libres Cooperative <info@champs-libres.coop>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+namespace Chill\TaskBundle\Timeline;
+
+use Chill\MainBundle\Timeline\TimelineProviderInterface;
+use Doctrine\ORM\EntityManagerInterface;
+use Chill\TaskBundle\Entity\Task\SingleTaskPlaceEvent;
+use Chill\TaskBundle\Entity\SingleTask;
+use Symfony\Component\Workflow\Registry;
+use Symfony\Component\Workflow\Workflow;
+
+/**
+ *
+ *
+ * @author Julien Fastré <julien.fastre@champs-libres.coop>
+ */
+class SingleTaskTaskLifeCycleEventTimelineProvider implements TimelineProviderInterface
+{
+    /**
+     *
+     * @var EntityManagerInterface
+     */
+    protected $em;
+
+    /**
+     *
+     * @var Registry
+     */
+    protected $registry;
+
+    const TYPE = 'chill_task.transition';
+
+    public function __construct(EntityManagerInterface $em, Registry $registry)
+    {
+        $this->em = $em;
+        $this->registry = $registry;
+    }
+
+    public function fetchQuery($context, $args)
+    {
+        if ($context !== 'task') {
+            throw new \LogicException(sprintf('%s is not able '
+                    . 'to render context %s', self::class, $context));
+        }
+
+        $metadata = $this->em
+            ->getClassMetadata(SingleTaskPlaceEvent::class);
+        $singleTaskMetadata = $this->em
+            ->getClassMetadata(SingleTask::class);
+
+        return [
+            'id' => sprintf('%s.%s.%s', $metadata->getSchemaName(), $metadata->getTableName(), $metadata->getColumnName('id')),
+            'type' => self::TYPE,
+            'date' => $metadata->getColumnName('datetime'),
+            'FROM' => sprintf('%s JOIN %s ON %s = %s',
+                sprintf('%s.%s', $metadata->getSchemaName(), $metadata->getTableName()),
+                sprintf('%s.%s', $singleTaskMetadata->getSchemaName(), $singleTaskMetadata->getTableName()),
+                $metadata->getAssociationMapping('task')['joinColumns'][0]['name'],
+                sprintf('%s.%s.%s', $singleTaskMetadata->getSchemaName(), $singleTaskMetadata->getTableName(), $singleTaskMetadata->getColumnName('id'))
+                ),
+            'WHERE' => sprintf('%s.%s = %d',
+                sprintf('%s.%s', $singleTaskMetadata->getSchemaName(), $singleTaskMetadata->getTableName()),
+                $singleTaskMetadata->getColumnName('id'),
+                $args['task']->getId()
+                )
+        ];
+
+    }
+
+    public function getEntities(array $ids)
+    {
+        $events = $this->em
+            ->getRepository(SingleTaskPlaceEvent::class)
+            ->findBy([ 'id' => $ids ])
+            ;
+
+        return \array_combine(
+            \array_map(function($e) { return $e->getId(); }, $events ),
+            $events
+            );
+    }
+
+    public function getEntityTemplate($entity, $context, array $args)
+    {
+        $workflow = $this->registry->get($entity->getTask(), $entity->getData['workflow']);
+        $transition = $this->getTransitionByName($entity->getTransition(), $workflow);
+
+        return [
+            'template' => 'ChillTaskBundle:Timeline:single_task_transition_task_context.html.twig',
+            'template_data' => [
+                'task' => $args['task'],
+                'event' => $entity,
+                'transition' => $transition
+            ]
+        ];
+    }
+
+    /**
+     *
+     * @param string $name
+     * @param Workflow $workflow
+     * @return \Symfony\Component\Workflow\Transition
+     */
+    protected function getTransitionByName($name, Workflow $workflow)
+    {
+        foreach ($workflow->getDefinition()->getTransitions() as $transition) {
+            if ($transition->getName() === $name) {
+                return $transition;
+            }
+        }
+    }
+
+    public function supportsType($type): bool
+    {
+        return $type === self::TYPE;
+    }
+}