Refactor ProjectActivity model to use Filter and Formatter interface

23 files changed, 647 insertions, 210 deletions

diff --git a/app/Api/Me.php b/app/Api/Me.php
index ccc809ed..3d08626a 100644
--- a/app/Api/Me.php
+++ b/app/Api/Me.php
@@ -33,7 +33,7 @@ class Me extends Base
     public function getMyActivityStream()
     {
         $project_ids = $this->projectPermission->getActiveProjectIds($this->userSession->getId());
-        return $this->projectActivity->getProjects($project_ids, 100);
+        return $this->helper->projectActivity->getProjectsEvents($project_ids, 100);
     }
 
     public function createMyPrivateProject($name, $description = null)
diff --git a/app/Api/Project.php b/app/Api/Project.php
index 8e311f7f..846d7046 100644
--- a/app/Api/Project.php
+++ b/app/Api/Project.php
@@ -53,13 +53,13 @@ class Project extends Base
 
     public function getProjectActivities(array $project_ids)
     {
-        return $this->projectActivity->getProjects($project_ids);
+        return $this->helper->projectActivity->getProjectsEvents($project_ids);
     }
 
     public function getProjectActivity($project_id)
     {
         $this->checkProjectPermission($project_id);
-        return $this->projectActivity->getProject($project_id);
+        return $this->helper->projectActivity->getProjectEvents($project_id);
     }
 
     public function createProject($name, $description = null)
diff --git a/app/Controller/Activity.php b/app/Controller/Activity.php
index e455b1da..47a66e0a 100644
--- a/app/Controller/Activity.php
+++ b/app/Controller/Activity.php
@@ -20,7 +20,7 @@ class Activity extends Base
         $project = $this->getProject();
 
         $this->response->html($this->helper->layout->app('activity/project', array(
-            'events' => $this->projectActivity->getProject($project['id']),
+            'events' => $this->helper->projectActivity->getProjectEvents($project['id']),
             'project' => $project,
             'title' => t('%s\'s activity', $project['name'])
         )));
@@ -39,7 +39,7 @@ class Activity extends Base
             'title' => $task['title'],
             'task' => $task,
             'project' => $this->project->getById($task['project_id']),
-            'events' => $this->projectActivity->getTask($task['id']),
+            'events' => $this->helper->projectActivity->getTaskEvents($task['id']),
         )));
     }
 }
diff --git a/app/Controller/App.php b/app/Controller/App.php
index df1d3c90..01f733ff 100644
--- a/app/Controller/App.php
+++ b/app/Controller/App.php
@@ -157,7 +157,7 @@ class App extends Base
 
         $this->response->html($this->helper->layout->dashboard('app/activity', array(
             'title' => t('My activity stream'),
-            'events' => $this->projectActivity->getProjects($this->projectPermission->getActiveProjectIds($user['id']), 100),
+            'events' => $this->helper->projectActivity->getProjectsEvents($this->projectPermission->getActiveProjectIds($user['id']), 100),
             'user' => $user,
         )));
     }
diff --git a/app/Controller/Feed.php b/app/Controller/Feed.php
index 8457c383..f8b3d320 100644
--- a/app/Controller/Feed.php
+++ b/app/Controller/Feed.php
@@ -26,7 +26,7 @@ class Feed extends Base
         }
 
         $this->response->xml($this->template->render('feed/user', array(
-            'events' => $this->projectActivity->getProjects($this->projectPermission->getActiveProjectIds($user['id'])),
+            'events' => $this->helper->projectActivity->getProjectsEvents($this->projectPermission->getActiveProjectIds($user['id'])),
             'user' => $user,
         )));
     }
@@ -47,7 +47,7 @@ class Feed extends Base
         }
 
         $this->response->xml($this->template->render('feed/project', array(
-            'events' => $this->projectActivity->getProject($project['id']),
+            'events' => $this->helper->projectActivity->getProjectEvents($project['id']),
             'project' => $project,
         )));
     }
diff --git a/app/Controller/ProjectOverview.php b/app/Controller/ProjectOverview.php
index 04645804..b2bb33d6 100644
--- a/app/Controller/ProjectOverview.php
+++ b/app/Controller/ProjectOverview.php
@@ -24,7 +24,7 @@ class ProjectOverview extends Base
             'description' => $this->helper->projectHeader->getDescription($project),
             'users' => $this->projectUserRole->getAllUsersGroupedByRole($project['id']),
             'roles' => $this->role->getProjectRoles(),
-            'events' => $this->projectActivity->getProject($project['id'], 10),
+            'events' => $this->helper->projectActivity->getProjectEvents($project['id'], 10),
             'images' => $this->projectFile->getAllImages($project['id']),
             'files' => $this->projectFile->getAllDocuments($project['id']),
         )));
diff --git a/app/Core/Base.php b/app/Core/Base.php
index 8c6b7620..2b619af5 100644
--- a/app/Core/Base.php
+++ b/app/Core/Base.php
@@ -129,10 +129,12 @@ use Pimple\Container;
  * @property \Kanboard\Export\TransitionExport                          $transitionExport
  * @property \Kanboard\Core\Filter\QueryBuilder                         $projectGroupRoleQuery
  * @property \Kanboard\Core\Filter\QueryBuilder                         $projectUserRoleQuery
+ * @property \Kanboard\Core\Filter\QueryBuilder                         $projectActivityQuery
  * @property \Kanboard\Core\Filter\QueryBuilder                         $userQuery
  * @property \Kanboard\Core\Filter\QueryBuilder                         $projectQuery
  * @property \Kanboard\Core\Filter\QueryBuilder                         $taskQuery
  * @property \Kanboard\Core\Filter\LexerBuilder                         $taskLexer
+ * @property \Kanboard\Core\Filter\LexerBuilder                         $projectActivityLexer
  * @property \Psr\Log\LoggerInterface                                   $logger
  * @property \PicoDb\Database                                           $db
  * @property \Symfony\Component\EventDispatcher\EventDispatcher         $dispatcher
diff --git a/app/Core/Helper.php b/app/Core/Helper.php
index ab1f8f76..66f8d429 100644
--- a/app/Core/Helper.php
+++ b/app/Core/Helper.php
@@ -26,6 +26,7 @@ use Pimple\Container;
  * @property \Kanboard\Helper\UserHelper              $user
  * @property \Kanboard\Helper\LayoutHelper            $layout
  * @property \Kanboard\Helper\ProjectHeaderHelper     $projectHeader
+ * @property \Kanboard\Helper\ProjectActivityHelper   $projectActivity
  */
 class Helper
 {
diff --git a/app/Filter/ProjectActivityProjectIdFilter.php b/app/Filter/ProjectActivityProjectIdFilter.php
new file mode 100644
index 00000000..bb4d8bd1
--- /dev/null
+++ b/app/Filter/ProjectActivityProjectIdFilter.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Kanboard\Filter;
+
+use Kanboard\Core\Filter\FilterInterface;
+use Kanboard\Model\ProjectActivity;
+
+/**
+ * Filter activity events by projectId
+ *
+ * @package filter
+ * @author  Frederic Guillot
+ */
+class ProjectActivityProjectIdFilter extends BaseFilter implements FilterInterface
+{
+    /**
+     * Get search attribute
+     *
+     * @access public
+     * @return string[]
+     */
+    public function getAttributes()
+    {
+        return array('project_id');
+    }
+
+    /**
+     * Apply filter
+     *
+     * @access public
+     * @return FilterInterface
+     */
+    public function apply()
+    {
+        $this->query->eq(ProjectActivity::TABLE.'.project_id', $this->value);
+        return $this;
+    }
+}
diff --git a/app/Filter/ProjectActivityProjectIdsFilter.php b/app/Filter/ProjectActivityProjectIdsFilter.php
new file mode 100644
index 00000000..4d7c9028
--- /dev/null
+++ b/app/Filter/ProjectActivityProjectIdsFilter.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Kanboard\Filter;
+
+use Kanboard\Core\Filter\FilterInterface;
+use Kanboard\Model\ProjectActivity;
+
+/**
+ * Filter activity events by projectIds
+ *
+ * @package filter
+ * @author  Frederic Guillot
+ */
+class ProjectActivityProjectIdsFilter extends BaseFilter implements FilterInterface
+{
+    /**
+     * Get search attribute
+     *
+     * @access public
+     * @return string[]
+     */
+    public function getAttributes()
+    {
+        return array('project_ids');
+    }
+
+    /**
+     * Apply filter
+     *
+     * @access public
+     * @return FilterInterface
+     */
+    public function apply()
+    {
+        if (empty($this->value)) {
+            $this->query->eq(ProjectActivity::TABLE.'.project_id', 0);
+        } else {
+            $this->query->in(ProjectActivity::TABLE.'.project_id', $this->value);
+        }
+
+        return $this;
+    }
+}
diff --git a/app/Filter/ProjectActivityTaskIdFilter.php b/app/Filter/ProjectActivityTaskIdFilter.php
new file mode 100644
index 00000000..e99efe09
--- /dev/null
+++ b/app/Filter/ProjectActivityTaskIdFilter.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Kanboard\Filter;
+
+use Kanboard\Core\Filter\FilterInterface;
+use Kanboard\Model\ProjectActivity;
+
+/**
+ * Filter activity events by taskId
+ *
+ * @package filter
+ * @author  Frederic Guillot
+ */
+class ProjectActivityTaskIdFilter extends BaseFilter implements FilterInterface
+{
+    /**
+     * Get search attribute
+     *
+     * @access public
+     * @return string[]
+     */
+    public function getAttributes()
+    {
+        return array('task_id');
+    }
+
+    /**
+     * Apply filter
+     *
+     * @access public
+     * @return FilterInterface
+     */
+    public function apply()
+    {
+        $this->query->eq(ProjectActivity::TABLE.'.task_id', $this->value);
+        return $this;
+    }
+}
diff --git a/app/Filter/ProjectActivityTaskTitleFilter.php b/app/Filter/ProjectActivityTaskTitleFilter.php
new file mode 100644
index 00000000..ed3f36d6
--- /dev/null
+++ b/app/Filter/ProjectActivityTaskTitleFilter.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Kanboard\Filter;
+
+use Kanboard\Core\Filter\FilterInterface;
+use Kanboard\Model\Task;
+
+/**
+ * Filter activity events by task title
+ *
+ * @package filter
+ * @author  Frederic Guillot
+ */
+class ProjectActivityTaskTitleFilter extends BaseFilter implements FilterInterface
+{
+    /**
+     * Get search attribute
+     *
+     * @access public
+     * @return string[]
+     */
+    public function getAttributes()
+    {
+        return array('title');
+    }
+
+    /**
+     * Apply filter
+     *
+     * @access public
+     * @return FilterInterface
+     */
+    public function apply()
+    {
+        $this->query->ilike(Task::TABLE.'.title', '%'.$this->value.'%');
+        return $this;
+    }
+}
diff --git a/app/Formatter/ProjectActivityEventFormatter.php b/app/Formatter/ProjectActivityEventFormatter.php
new file mode 100644
index 00000000..ae80e5e7
--- /dev/null
+++ b/app/Formatter/ProjectActivityEventFormatter.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Kanboard\Formatter;
+
+use Kanboard\Core\Filter\FormatterInterface;
+
+class ProjectActivityEventFormatter extends BaseFormatter implements FormatterInterface
+{
+    /**
+     * Apply formatter
+     *
+     * @access public
+     * @return array
+     */
+    public function format()
+    {
+        $events = $this->query->findAll();
+
+        foreach ($events as &$event) {
+            $event += $this->unserializeEvent($event['data']);
+            unset($event['data']);
+
+            $event['author'] = $event['author_name'] ?: $event['author_username'];
+            $event['event_title'] = $this->notification->getTitleWithAuthor($event['author'], $event['event_name'], $event);
+            $event['event_content'] = $this->renderEvent($event);
+        }
+
+        return $events;
+    }
+
+    /**
+     * Decode event data, supports unserialize() and json_decode()
+     *
+     * @access protected
+     * @param  string   $data   Serialized data
+     * @return array
+     */
+    protected function unserializeEvent($data)
+    {
+        if ($data{0} === 'a') {
+            return unserialize($data);
+        }
+
+        return json_decode($data, true) ?: array();
+    }
+
+    /**
+     * Get the event html content
+     *
+     * @access protected
+     * @param  array     $params    Event properties
+     * @return string
+     */
+    protected function renderEvent(array $params)
+    {
+        return $this->template->render(
+            'event/'.str_replace('.', '_', $params['event_name']),
+            $params
+        );
+    }
+}
diff --git a/app/Helper/ProjectActivityHelper.php b/app/Helper/ProjectActivityHelper.php
new file mode 100644
index 00000000..738fec66
--- /dev/null
+++ b/app/Helper/ProjectActivityHelper.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace Kanboard\Helper;
+
+use Kanboard\Core\Base;
+use Kanboard\Filter\ProjectActivityProjectIdFilter;
+use Kanboard\Filter\ProjectActivityProjectIdsFilter;
+use Kanboard\Filter\ProjectActivityTaskIdFilter;
+use Kanboard\Formatter\ProjectActivityEventFormatter;
+use Kanboard\Model\ProjectActivity;
+
+/**
+ * Project Activity Helper
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class ProjectActivityHelper extends Base
+{
+    /**
+     * Get project activity events
+     *
+     * @access public
+     * @param  integer  $project_id
+     * @param  int      $limit
+     * @return array
+     */
+    public function getProjectEvents($project_id, $limit = 50)
+    {
+        $queryBuilder = $this->projectActivityQuery
+            ->withFilter(new ProjectActivityProjectIdFilter($project_id));
+
+        $queryBuilder->getQuery()
+            ->desc(ProjectActivity::TABLE.'.id')
+            ->limit($limit)
+        ;
+
+        return $queryBuilder->format(new ProjectActivityEventFormatter($this->container));
+    }
+
+    /**
+     * Get projects activity events
+     *
+     * @access public
+     * @param  int[]    $project_ids
+     * @param  int      $limit
+     * @return array
+     */
+    public function getProjectsEvents(array $project_ids, $limit = 50)
+    {
+        $queryBuilder = $this->projectActivityQuery
+            ->withFilter(new ProjectActivityProjectIdsFilter($project_ids));
+
+        $queryBuilder->getQuery()
+            ->desc(ProjectActivity::TABLE.'.id')
+            ->limit($limit)
+        ;
+
+        return $queryBuilder->format(new ProjectActivityEventFormatter($this->container));
+    }
+
+    /**
+     * Get task activity events
+     *
+     * @access public
+     * @param  integer $task_id
+     * @return array
+     */
+    public function getTaskEvents($task_id)
+    {
+        $queryBuilder = $this->projectActivityQuery
+            ->withFilter(new ProjectActivityTaskIdFilter($task_id));
+
+        $queryBuilder->getQuery()->desc(ProjectActivity::TABLE.'.id');
+
+        return $queryBuilder->format(new ProjectActivityEventFormatter($this->container));
+    }
+}
diff --git a/app/Model/ProjectActivity.php b/app/Model/ProjectActivity.php
index 34893f0b..31cee113 100644
--- a/app/Model/ProjectActivity.php
+++ b/app/Model/ProjectActivity.php
@@ -53,115 +53,25 @@ class ProjectActivity extends Base
     }
 
     /**
-     * Get all events for the given project
+     * Get query
      *
      * @access public
-     * @param  integer     $project_id      Project id
-     * @param  integer     $limit           Maximum events number
-     * @param  integer     $start           Timestamp of earliest activity
-     * @param  integer     $end             Timestamp of latest activity
-     * @return array
-     */
-    public function getProject($project_id, $limit = 50, $start = null, $end = null)
-    {
-        return $this->getProjects(array($project_id), $limit, $start, $end);
-    }
-
-    /**
-     * Get all events for the given projects list
-     *
-     * @access public
-     * @param  integer[]   $project_ids     Projects id
-     * @param  integer     $limit           Maximum events number
-     * @param  integer     $start           Timestamp of earliest activity
-     * @param  integer     $end             Timestamp of latest activity
-     * @return array
-     */
-    public function getProjects(array $project_ids, $limit = 50, $start = null, $end = null)
-    {
-        if (empty($project_ids)) {
-            return array();
-        }
-
-        $query = $this
-                    ->db
-                    ->table(self::TABLE)
-                    ->columns(
-                        self::TABLE.'.*',
-                        User::TABLE.'.username AS author_username',
-                        User::TABLE.'.name AS author_name',
-                        User::TABLE.'.email',
-                        User::TABLE.'.avatar_path'
-                    )
-                    ->in('project_id', $project_ids)
-                    ->join(User::TABLE, 'id', 'creator_id')
-                    ->desc(self::TABLE.'.id')
-                    ->limit($limit);
-
-        return $this->getEvents($query, $start, $end);
-    }
-
-    /**
-     * Get all events for the given task
-     *
-     * @access public
-     * @param  integer     $task_id         Task id
-     * @param  integer     $limit           Maximum events number
-     * @param  integer     $start           Timestamp of earliest activity
-     * @param  integer     $end             Timestamp of latest activity
-     * @return array
-     */
-    public function getTask($task_id, $limit = 50, $start = null, $end = null)
-    {
-        $query = $this
-                    ->db
-                    ->table(self::TABLE)
-                    ->columns(
-                        self::TABLE.'.*',
-                        User::TABLE.'.username AS author_username',
-                        User::TABLE.'.name AS author_name',
-                        User::TABLE.'.email',
-                        User::TABLE.'.avatar_path'
-                    )
-                    ->eq('task_id', $task_id)
-                    ->join(User::TABLE, 'id', 'creator_id')
-                    ->desc(self::TABLE.'.id')
-                    ->limit($limit);
-
-        return $this->getEvents($query, $start, $end);
-    }
-
-    /**
-     * Common function to return events
-     *
-     * @access public
-     * @param  Table           $query           PicoDb Query
-     * @param  integer         $start           Timestamp of earliest activity
-     * @param  integer         $end             Timestamp of latest activity
-     * @return array
+     * @return Table
      */
-    private function getEvents(Table $query, $start, $end)
+    public function getQuery()
     {
-        if (! is_null($start)) {
-            $query->gte('date_creation', $start);
-        }
-
-        if (! is_null($end)) {
-            $query->lte('date_creation', $end);
-        }
-
-        $events = $query->findAll();
-
-        foreach ($events as &$event) {
-            $event += $this->decode($event['data']);
-            unset($event['data']);
-
-            $event['author'] = $event['author_name'] ?: $event['author_username'];
-            $event['event_title'] = $this->notification->getTitleWithAuthor($event['author'], $event['event_name'], $event);
-            $event['event_content'] = $this->getContent($event);
-        }
-
-        return $events;
+        return $this
+            ->db
+            ->table(ProjectActivity::TABLE)
+            ->columns(
+                ProjectActivity::TABLE.'.*',
+                'uc.username AS author_username',
+                'uc.name AS author_name',
+                'uc.email',
+                'uc.avatar_path'
+            )
+            ->join(Task::TABLE, 'id', 'task_id')
+            ->left(User::TABLE, 'uc', 'id', ProjectActivity::TABLE, 'creator_id');
     }
 
     /**
@@ -179,35 +89,4 @@ class ProjectActivity extends Base
             $this->db->table(self::TABLE)->in('id', $ids)->remove();
         }
     }
-
-    /**
-     * Get the event html content
-     *
-     * @access public
-     * @param  array     $params    Event properties
-     * @return string
-     */
-    public function getContent(array $params)
-    {
-        return $this->template->render(
-            'event/'.str_replace('.', '_', $params['event_name']),
-            $params
-        );
-    }
-
-    /**
-     * Decode event data, supports unserialize() and json_decode()
-     *
-     * @access public
-     * @param  string   $data   Serialized data
-     * @return array
-     */
-    public function decode($data)
-    {
-        if ($data{0} === 'a') {
-            return unserialize($data);
-        }
-
-        return json_decode($data, true) ?: array();
-    }
 }
diff --git a/app/ServiceProvider/FilterProvider.php b/app/ServiceProvider/FilterProvider.php
index 3100ae7e..4b4dbd2d 100644
--- a/app/ServiceProvider/FilterProvider.php
+++ b/app/ServiceProvider/FilterProvider.php
@@ -4,6 +4,7 @@ namespace Kanboard\ServiceProvider;
 
 use Kanboard\Core\Filter\LexerBuilder;
 use Kanboard\Core\Filter\QueryBuilder;
+use Kanboard\Filter\ProjectActivityTaskTitleFilter;
 use Kanboard\Filter\TaskAssigneeFilter;
 use Kanboard\Filter\TaskCategoryFilter;
 use Kanboard\Filter\TaskColorFilter;
@@ -46,6 +47,25 @@ class FilterProvider implements ServiceProviderInterface
      */
     public function register(Container $container)
     {
+        $this->createUserFilter($container);
+        $this->createProjectFilter($container);
+        $this->createTaskFilter($container);
+        return $container;
+    }
+
+    public function createUserFilter(Container $container)
+    {
+        $container['userQuery'] = $container->factory(function ($c) {
+            $builder = new QueryBuilder();
+            $builder->withQuery($c['db']->table(User::TABLE));
+            return $builder;
+        });
+
+        return $container;
+    }
+
+    public function createProjectFilter(Container $container)
+    {
         $container['projectGroupRoleQuery'] = $container->factory(function ($c) {
             $builder = new QueryBuilder();
             $builder->withQuery($c['db']->table(ProjectGroupRole::TABLE));
@@ -58,18 +78,32 @@ class FilterProvider implements ServiceProviderInterface
             return $builder;
         });
 
-        $container['userQuery'] = $container->factory(function ($c) {
+        $container['projectQuery'] = $container->factory(function ($c) {
             $builder = new QueryBuilder();
-            $builder->withQuery($c['db']->table(User::TABLE));
+            $builder->withQuery($c['db']->table(Project::TABLE));
             return $builder;
         });
 
-        $container['projectQuery'] = $container->factory(function ($c) {
+        $container['projectActivityLexer'] = $container->factory(function ($c) {
+            $builder = new LexerBuilder();
+            $builder->withQuery($c['projectActivity']->getQuery());
+            $builder->withFilter(new ProjectActivityTaskTitleFilter());
+
+            return $builder;
+        });
+
+        $container['projectActivityQuery'] = $container->factory(function ($c) {
             $builder = new QueryBuilder();
-            $builder->withQuery($c['db']->table(Project::TABLE));
+            $builder->withQuery($c['projectActivity']->getQuery());
+
             return $builder;
         });
 
+        return $container;
+    }
+
+    public function createTaskFilter(Container $container)
+    {
         $container['taskQuery'] = $container->factory(function ($c) {
             $builder = new QueryBuilder();
             $builder->withQuery($c['taskFinder']->getExtendedQuery());
diff --git a/app/ServiceProvider/HelperProvider.php b/app/ServiceProvider/HelperProvider.php
index 3590afa5..bf3956a2 100644
--- a/app/ServiceProvider/HelperProvider.php
+++ b/app/ServiceProvider/HelperProvider.php
@@ -30,6 +30,7 @@ class HelperProvider implements ServiceProviderInterface
         $container['helper']->register('user', '\Kanboard\Helper\UserHelper');
         $container['helper']->register('avatar', '\Kanboard\Helper\AvatarHelper');
         $container['helper']->register('projectHeader', '\Kanboard\Helper\ProjectHeaderHelper');
+        $container['helper']->register('projectActivity', '\Kanboard\Helper\ProjectActivityHelper');
 
         $container['template'] = new Template($container['helper']);
 
diff --git a/tests/units/Filter/ProjectActivityProjectIdFilterTest.php b/tests/units/Filter/ProjectActivityProjectIdFilterTest.php
new file mode 100644
index 00000000..193852e1
--- /dev/null
+++ b/tests/units/Filter/ProjectActivityProjectIdFilterTest.php
@@ -0,0 +1,35 @@
+<?php
+
+use Kanboard\Filter\ProjectActivityProjectIdFilter;
+use Kanboard\Model\Project;
+use Kanboard\Model\ProjectActivity;
+use Kanboard\Model\TaskCreation;
+use Kanboard\Model\TaskFinder;
+use Kanboard\Model\Task;
+
+require_once __DIR__.'/../Base.php';
+
+class ProjectActivityProjectIdFilterTest extends Base
+{
+    public function testFilterByProjectId()
+    {
+        $taskFinder = new TaskFinder($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $projectModel = new Project($this->container);
+        $projectActivityModel = new ProjectActivity($this->container);
+        $query = $projectActivityModel->getQuery();
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'P1')));
+        $this->assertEquals(2, $projectModel->create(array('name' => 'P2')));
+
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+        $this->assertEquals(2, $taskCreation->create(array('title' => 'Test', 'project_id' => 2)));
+
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 1, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(1))));
+        $this->assertNotFalse($projectActivityModel->createEvent(2, 2, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(2))));
+
+        $filter = new ProjectActivityProjectIdFilter(1);
+        $filter->withQuery($query)->apply();
+        $this->assertCount(1, $query->findAll());
+    }
+}
diff --git a/tests/units/Filter/ProjectActivityProjectIdsFilterTest.php b/tests/units/Filter/ProjectActivityProjectIdsFilterTest.php
new file mode 100644
index 00000000..e99d2e2f
--- /dev/null
+++ b/tests/units/Filter/ProjectActivityProjectIdsFilterTest.php
@@ -0,0 +1,63 @@
+<?php
+
+use Kanboard\Filter\ProjectActivityProjectIdsFilter;
+use Kanboard\Model\Project;
+use Kanboard\Model\ProjectActivity;
+use Kanboard\Model\TaskCreation;
+use Kanboard\Model\TaskFinder;
+use Kanboard\Model\Task;
+
+require_once __DIR__.'/../Base.php';
+
+class ProjectActivityProjectIdsFilterTest extends Base
+{
+    public function testFilterByProjectIds()
+    {
+        $taskFinder = new TaskFinder($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $projectModel = new Project($this->container);
+        $projectActivityModel = new ProjectActivity($this->container);
+        $query = $projectActivityModel->getQuery();
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'P1')));
+        $this->assertEquals(2, $projectModel->create(array('name' => 'P2')));
+        $this->assertEquals(3, $projectModel->create(array('name' => 'P3')));
+
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+        $this->assertEquals(2, $taskCreation->create(array('title' => 'Test', 'project_id' => 2)));
+        $this->assertEquals(3, $taskCreation->create(array('title' => 'Test', 'project_id' => 3)));
+
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 1, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(1))));
+        $this->assertNotFalse($projectActivityModel->createEvent(2, 2, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(2))));
+        $this->assertNotFalse($projectActivityModel->createEvent(3, 3, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(3))));
+
+        $filter = new ProjectActivityProjectIdsFilter(array(1, 2));
+        $filter->withQuery($query)->apply();
+        $this->assertCount(2, $query->findAll());
+    }
+
+    public function testWithEmptyArgument()
+    {
+        $taskFinder = new TaskFinder($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $projectModel = new Project($this->container);
+        $projectActivityModel = new ProjectActivity($this->container);
+        $query = $projectActivityModel->getQuery();
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'P1')));
+        $this->assertEquals(2, $projectModel->create(array('name' => 'P2')));
+        $this->assertEquals(3, $projectModel->create(array('name' => 'P3')));
+
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+        $this->assertEquals(2, $taskCreation->create(array('title' => 'Test', 'project_id' => 2)));
+        $this->assertEquals(3, $taskCreation->create(array('title' => 'Test', 'project_id' => 3)));
+
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 1, 1, Task::EVENT_CREATE, $taskFinder->getById(1)));
+        $this->assertNotFalse($projectActivityModel->createEvent(2, 2, 1, Task::EVENT_CREATE, $taskFinder->getById(2)));
+        $this->assertNotFalse($projectActivityModel->createEvent(3, 3, 1, Task::EVENT_CREATE, $taskFinder->getById(3)));
+
+        $filter = new ProjectActivityProjectIdsFilter(array());
+        $filter->withQuery($query)->apply();
+        $this->assertCount(0, $query->findAll());
+    }
+}
diff --git a/tests/units/Filter/ProjectActivityTaskIdFilterTest.php b/tests/units/Filter/ProjectActivityTaskIdFilterTest.php
new file mode 100644
index 00000000..646cab1b
--- /dev/null
+++ b/tests/units/Filter/ProjectActivityTaskIdFilterTest.php
@@ -0,0 +1,34 @@
+<?php
+
+use Kanboard\Filter\ProjectActivityTaskIdFilter;
+use Kanboard\Model\Project;
+use Kanboard\Model\ProjectActivity;
+use Kanboard\Model\TaskCreation;
+use Kanboard\Model\TaskFinder;
+use Kanboard\Model\Task;
+
+require_once __DIR__.'/../Base.php';
+
+class ProjectActivityTaskIdFilterTest extends Base
+{
+    public function testFilterByTaskId()
+    {
+        $taskFinder = new TaskFinder($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $projectModel = new Project($this->container);
+        $projectActivityModel = new ProjectActivity($this->container);
+        $query = $projectActivityModel->getQuery();
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'P1')));
+
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+        $this->assertEquals(2, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 1, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(1))));
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 2, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(2))));
+
+        $filter = new ProjectActivityTaskIdFilter(1);
+        $filter->withQuery($query)->apply();
+        $this->assertCount(1, $query->findAll());
+    }
+}
diff --git a/tests/units/Filter/ProjectActivityTaskTitleFilterTest.php b/tests/units/Filter/ProjectActivityTaskTitleFilterTest.php
new file mode 100644
index 00000000..6a7c23af
--- /dev/null
+++ b/tests/units/Filter/ProjectActivityTaskTitleFilterTest.php
@@ -0,0 +1,34 @@
+<?php
+
+use Kanboard\Filter\ProjectActivityTaskTitleFilter;
+use Kanboard\Model\Project;
+use Kanboard\Model\ProjectActivity;
+use Kanboard\Model\TaskCreation;
+use Kanboard\Model\TaskFinder;
+use Kanboard\Model\Task;
+
+require_once __DIR__.'/../Base.php';
+
+class ProjectActivityTaskTitleFilterTest extends Base
+{
+    public function testFilterByTaskId()
+    {
+        $taskFinder = new TaskFinder($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $projectModel = new Project($this->container);
+        $projectActivityModel = new ProjectActivity($this->container);
+        $query = $projectActivityModel->getQuery();
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'P1')));
+
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test1', 'project_id' => 1)));
+        $this->assertEquals(2, $taskCreation->create(array('title' => 'Test2', 'project_id' => 1)));
+
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 1, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(1))));
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 2, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(2))));
+
+        $filter = new ProjectActivityTaskTitleFilter('test2');
+        $filter->withQuery($query)->apply();
+        $this->assertCount(1, $query->findAll());
+    }
+}
diff --git a/tests/units/Helper/ProjectActivityHelperTest.php b/tests/units/Helper/ProjectActivityHelperTest.php
new file mode 100644
index 00000000..88b2d352
--- /dev/null
+++ b/tests/units/Helper/ProjectActivityHelperTest.php
@@ -0,0 +1,97 @@
+<?php
+
+use Kanboard\Helper\ProjectActivityHelper;
+use Kanboard\Model\Project;
+use Kanboard\Model\ProjectActivity;
+use Kanboard\Model\Task;
+use Kanboard\Model\TaskCreation;
+use Kanboard\Model\TaskFinder;
+
+require_once __DIR__.'/../Base.php';
+
+class ProjectActivityHelperTest extends Base
+{
+    public function testGetProjectEvents()
+    {
+        $taskFinder = new TaskFinder($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $projectModel = new Project($this->container);
+        $projectActivityModel = new ProjectActivity($this->container);
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'P1')));
+
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+        $this->assertEquals(2, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+        $this->assertEquals(3, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 1, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(1))));
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 2, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(2))));
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 3, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(3))));
+
+        $helper = new ProjectActivityHelper($this->container);
+        $events = $helper->getProjectEvents(1);
+
+        $this->assertCount(3, $events);
+        $this->assertEquals(3, $events[0]['task_id']);
+        $this->assertNotEmpty($events[0]['event_content']);
+        $this->assertNotEmpty($events[0]['event_title']);
+        $this->assertNotEmpty($events[0]['author']);
+        $this->assertInternalType('array', $events[0]['task']);
+    }
+
+    public function testGetProjectsEvents()
+    {
+        $taskFinder = new TaskFinder($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $projectModel = new Project($this->container);
+        $projectActivityModel = new ProjectActivity($this->container);
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'P1')));
+        $this->assertEquals(2, $projectModel->create(array('name' => 'P2')));
+        $this->assertEquals(3, $projectModel->create(array('name' => 'P3')));
+
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+        $this->assertEquals(2, $taskCreation->create(array('title' => 'Test', 'project_id' => 2)));
+        $this->assertEquals(3, $taskCreation->create(array('title' => 'Test', 'project_id' => 3)));
+
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 1, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(1))));
+        $this->assertNotFalse($projectActivityModel->createEvent(2, 2, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(2))));
+        $this->assertNotFalse($projectActivityModel->createEvent(3, 3, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(3))));
+
+        $helper = new ProjectActivityHelper($this->container);
+        $events = $helper->getProjectsEvents(array(1, 2));
+
+        $this->assertCount(2, $events);
+        $this->assertEquals(2, $events[0]['task_id']);
+        $this->assertNotEmpty($events[0]['event_content']);
+        $this->assertNotEmpty($events[0]['event_title']);
+        $this->assertNotEmpty($events[0]['author']);
+        $this->assertInternalType('array', $events[0]['task']);
+    }
+
+    public function testGetTaskEvents()
+    {
+        $taskFinder = new TaskFinder($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $projectModel = new Project($this->container);
+        $projectActivityModel = new ProjectActivity($this->container);
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'P1')));
+
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+        $this->assertEquals(2, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 1, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(1))));
+        $this->assertNotFalse($projectActivityModel->createEvent(1, 2, 1, Task::EVENT_CREATE, array('task' => $taskFinder->getById(2))));
+
+        $helper = new ProjectActivityHelper($this->container);
+        $events = $helper->getTaskEvents(1);
+
+        $this->assertCount(1, $events);
+        $this->assertEquals(1, $events[0]['task_id']);
+        $this->assertNotEmpty($events[0]['event_content']);
+        $this->assertNotEmpty($events[0]['event_title']);
+        $this->assertNotEmpty($events[0]['author']);
+        $this->assertInternalType('array', $events[0]['task']);
+    }
+}
diff --git a/tests/units/Model/ProjectActivityTest.php b/tests/units/Model/ProjectActivityTest.php
index 27ea039d..a624cd86 100644
--- a/tests/units/Model/ProjectActivityTest.php
+++ b/tests/units/Model/ProjectActivityTest.php
@@ -10,90 +10,51 @@ use Kanboard\Model\Project;
 
 class ProjectActivityTest extends Base
 {
-    public function testDecode()
-    {
-        $e = new ProjectActivity($this->container);
-        $input = array('test');
-        $serialized = serialize($input);
-        $json = json_encode($input);
-
-        $this->assertEquals($input, $e->decode($serialized));
-        $this->assertEquals($input, $e->decode($json));
-    }
-
     public function testCreation()
     {
-        $e = new ProjectActivity($this->container);
-        $tc = new TaskCreation($this->container);
-        $tf = new TaskFinder($this->container);
-        $p = new Project($this->container);
+        $projectActivity = new ProjectActivity($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $taskFinder = new TaskFinder($this->container);
+        $projectModel = new Project($this->container);
 
-        $this->assertEquals(1, $p->create(array('name' => 'Project #1')));
-        $this->assertEquals(1, $tc->create(array('title' => 'Task #1', 'project_id' => 1)));
-        $this->assertEquals(2, $tc->create(array('title' => 'Task #2', 'project_id' => 1)));
+        $this->assertEquals(1, $projectModel->create(array('name' => 'Project #1')));
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Task #1', 'project_id' => 1)));
+        $this->assertEquals(2, $taskCreation->create(array('title' => 'Task #2', 'project_id' => 1)));
 
-        $this->assertTrue($e->createEvent(1, 1, 1, Task::EVENT_CLOSE, array('task' => $tf->getbyId(1))));
-        $this->assertTrue($e->createEvent(1, 2, 1, Task::EVENT_UPDATE, array('task' => $tf->getById(2))));
-        $this->assertFalse($e->createEvent(1, 1, 0, Task::EVENT_OPEN, array('task' => $tf->getbyId(1))));
+        $this->assertTrue($projectActivity->createEvent(1, 1, 1, Task::EVENT_CLOSE, array('task' => $taskFinder->getbyId(1))));
+        $this->assertTrue($projectActivity->createEvent(1, 2, 1, Task::EVENT_UPDATE, array('task' => $taskFinder->getById(2))));
+        $this->assertFalse($projectActivity->createEvent(1, 1, 0, Task::EVENT_OPEN, array('task' => $taskFinder->getbyId(1))));
 
-        $events = $e->getProject(1);
+        $events = $projectActivity->getQuery()->desc('id')->findAll();
 
-        $this->assertNotEmpty($events);
-        $this->assertTrue(is_array($events));
-        $this->assertEquals(2, count($events));
+        $this->assertCount(2, $events);
         $this->assertEquals(time(), $events[0]['date_creation'], '', 1);
         $this->assertEquals(Task::EVENT_UPDATE, $events[0]['event_name']);
         $this->assertEquals(Task::EVENT_CLOSE, $events[1]['event_name']);
     }
 
-    public function testFetchAllContent()
-    {
-        $e = new ProjectActivity($this->container);
-        $tc = new TaskCreation($this->container);
-        $tf = new TaskFinder($this->container);
-        $p = new Project($this->container);
-
-        $this->assertEquals(1, $p->create(array('name' => 'Project #1')));
-        $this->assertEquals(1, $tc->create(array('title' => 'Task #1', 'project_id' => 1)));
-
-        $nb_events = 80;
-
-        for ($i = 0; $i < $nb_events; $i++) {
-            $this->assertTrue($e->createEvent(1, 1, 1, Task::EVENT_UPDATE, array('task' => $tf->getbyId(1))));
-        }
-
-        $events = $e->getProject(1);
-
-        $this->assertNotEmpty($events);
-        $this->assertTrue(is_array($events));
-        $this->assertEquals(50, count($events));
-        $this->assertEquals('admin', $events[0]['author']);
-        $this->assertNotEmpty($events[0]['event_title']);
-        $this->assertNotEmpty($events[0]['event_content']);
-    }
-
     public function testCleanup()
     {
-        $e = new ProjectActivity($this->container);
-        $tc = new TaskCreation($this->container);
-        $tf = new TaskFinder($this->container);
-        $p = new Project($this->container);
+        $projectActivity = new ProjectActivity($this->container);
+        $taskCreation = new TaskCreation($this->container);
+        $taskFinder = new TaskFinder($this->container);
+        $projectModel = new Project($this->container);
 
-        $this->assertEquals(1, $p->create(array('name' => 'Project #1')));
-        $this->assertEquals(1, $tc->create(array('title' => 'Task #1', 'project_id' => 1)));
+        $this->assertEquals(1, $projectModel->create(array('name' => 'Project #1')));
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Task #1', 'project_id' => 1)));
 
         $max = 15;
         $nb_events = 100;
-        $task = $tf->getbyId(1);
+        $task = $taskFinder->getbyId(1);
 
         for ($i = 0; $i < $nb_events; $i++) {
-            $this->assertTrue($e->createEvent(1, 1, 1, Task::EVENT_CLOSE, array('task' => $task)));
+            $this->assertTrue($projectActivity->createEvent(1, 1, 1, Task::EVENT_CLOSE, array('task' => $task)));
         }
 
         $this->assertEquals($nb_events, $this->container['db']->table('project_activities')->count());
-        $e->cleanup($max);
+        $projectActivity->cleanup($max);
 
-        $events = $e->getProject(1);
+        $events = $projectActivity->getQuery()->desc('id')->findAll();
 
         $this->assertNotEmpty($events);
         $this->assertCount($max, $events);