Time tracking related pluginsHEADmaster

21 files changed, 2022 insertions, 0 deletions

diff --git a/plugins/TimeMachine/Action/SubtaskTimerMoveTaskColumn.php b/plugins/TimeMachine/Action/SubtaskTimerMoveTaskColumn.php
new file mode 100644
index 00000000..e6d2217b
--- /dev/null
+++ b/plugins/TimeMachine/Action/SubtaskTimerMoveTaskColumn.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Kanboard\Plugin\TimeMachine\Action;
+
+use Kanboard\Model\TaskModel;
+use Kanboard\Model\SubtaskModel;
+
+/**
+ * Create a subtask and activate the timer when moving a task to another column.
+ *
+ * @package Kanboard\Action
+ * @author  yvalentin
+ */
+class SubtaskTimerMoveTaskColumn extends \Kanboard\Action\SubtaskTimerMoveTaskColumn
+{
+    /**
+     * Execute the action (append to the task description).
+     * SubTask is create with user session (not with creator of the task, on original action on extends class)
+     *
+     * @access public
+     * @param  array   $data   Event data dictionary
+     * @return bool            True if the action was executed or false when not executed
+     */
+    public function doAction(array $data)
+    {
+        $userId = $this->userSession->getId();
+        $subtaskID = $this->subtaskModel->create(array(
+            'title' => $this->getParam('subtask'),
+            'user_id' => $userId,
+            'task_id' => $data['task']['id'],
+            'status' => SubtaskModel::STATUS_INPROGRESS,
+        ));
+
+        if ($subtaskID !== false) {
+            return $this->subtaskTimeTrackingModel->toggleTimer($subtaskID, $userId, SubtaskModel::STATUS_INPROGRESS);
+        }
+
+        return false;
+    }
+}
diff --git a/plugins/TimeMachine/Assets/js/components/chart-project-time-machine.js b/plugins/TimeMachine/Assets/js/components/chart-project-time-machine.js
new file mode 100644
index 00000000..0ae20256
--- /dev/null
+++ b/plugins/TimeMachine/Assets/js/components/chart-project-time-machine.js
@@ -0,0 +1,84 @@
+KB.component('chart-project-analytics-time-comparison', function (containerElement, options) {
+    this.render = function () {
+        let spent = options.labelSpent;
+        let estimated = options.labelEstimated;
+        let data = [];
+        let result = [];
+        let groupsSpent = [];
+        let groupsEstimated = [];
+        let categories = [options.labelOpen, options.labelClosed];
+
+        for (let metric in options.metrics) {
+            data[metric+'-'+spent] = [metric+'-'+spent];
+            data[metric+'-'+estimated] = [metric+'-'+estimated];
+            groupsSpent.push(metric+'-'+spent);
+            groupsEstimated.push(metric+'-'+estimated);
+            data[metric+'-'+spent].push(options.metrics[metric]['open'].time_spent);
+            data[metric+'-'+estimated].push(options.metrics[metric]['open'].time_estimated);
+            data[metric+'-'+spent].push(options.metrics[metric]['closed'].time_spent);
+            data[metric+'-'+estimated].push(options.metrics[metric]['closed'].time_estimated);
+            result.push(data[metric+'-'+estimated]);
+            result.push(data[metric+'-'+spent]);
+        }
+        result.sort();
+
+        KB.dom(containerElement).add(KB.dom('div').attr('id', 'chart').build());
+
+        c3.generate({
+            data: {
+                columns: result,
+                type: 'bar',
+                groups: [
+                    groupsEstimated,
+                    groupsSpent
+                ]
+            },
+            bar: {
+                width: {
+                    ratio: 0.5
+                }
+            },
+            axis: {
+                x: {
+                    type: 'category',
+                    categories: categories
+                }
+            },
+            legend: {
+                show: true
+            }
+        });
+    };
+});
+
+KB.component('chart-project-analytics-spent-time-by-dates', function (containerElement, options) {
+    this.render = function () {
+        let spentTime = [options.labelSpent];
+        spentTime.push(options.metrics['open']);
+        spentTime.push(options.metrics['closed']);
+        let categories = [options.labelOpen, options.labelClosed];
+
+        KB.dom(containerElement).add(KB.dom('div').attr('id', 'chart').build());
+
+        c3.generate({
+            data: {
+                columns: [spentTime],
+                type: 'bar'
+            },
+            bar: {
+                width: {
+                    ratio: 0.3
+                }
+            },
+            axis: {
+                x: {
+                    type: 'category',
+                    categories: categories
+                }
+            },
+            legend: {
+                show: true
+            }
+        });
+    };
+});
\ No newline at end of file
diff --git a/plugins/TimeMachine/Controller/AnalyticsTimesController.php b/plugins/TimeMachine/Controller/AnalyticsTimesController.php
new file mode 100644
index 00000000..081d3be0
--- /dev/null
+++ b/plugins/TimeMachine/Controller/AnalyticsTimesController.php
@@ -0,0 +1,150 @@
+<?php
+
+namespace Kanboard\Plugin\TimeMachine\Controller;
+
+use Kanboard\Controller\BaseController;
+use Kanboard\Filter\TaskProjectFilter;
+use Kanboard\Model\TaskModel;
+
+
+/**
+ * @plugin TimeMachine
+ *
+ * @package Kanboard\Plugin\TimeMachine\Controller
+ * @author  yvalentin
+ */
+class AnalyticsTimesController extends BaseController {
+
+    /**
+     * Show comparison between actual and estimated hours chart by Swimlane
+     *
+     * @access public
+     */
+    public function timeComparisonBySwimlane()
+    {
+        $project = $this->getProject();
+        $paginator = $this->getPaginator('timeComparisonBySwimlane', $project);
+
+        list($metrics, $swimlanes) = $this->helper->analyticsTimes->buildBySwimlane($project['id']);
+        $this->response->html(
+            $this->helper->layout->analytic('TimeMachine:analytic/time_comparison_by_swimlane',
+                array(
+                    'project'   => $project,
+                    'swimlanes' => $swimlanes,
+                    'paginator' => $paginator,
+                    'metrics'   => $metrics,
+                    'title'     => t('Estimated vs actual time / Swimlanes'),
+                )
+            )
+        );
+    }
+
+    /**
+     * Show comparison between actual and estimated hours chart by Categories
+     *
+     * @access public
+     */
+    public function timeComparisonByCategories()
+    {
+        $project = $this->getProject();
+        $paginator = $this->getPaginator('timeComparisonByCategories', $project);
+
+        list($metrics, $categories) = $this->helper->analyticsTimes->buildByCategories($project['id']);
+        $this->response->html(
+            $this->helper->layout->analytic('TimeMachine:analytic/time_comparison_by_categories',
+                array(
+                    'project'       => $project,
+                    'categories'    => $categories,
+                    'paginator'     => $paginator,
+                    'metrics'       => $metrics,
+                    'title'         => t('Estimated vs actual time / Categories'),
+                )
+            )
+        );
+    }
+
+    public function timeComparisonByDates()
+    {
+        $project = $this->getProject();
+        list($from, $to) = $this->getDates();
+        $paginatorParams = [
+            'from' => $from->format('Y-m-d'),
+            'to' => $to->format('Y-m-d')
+        ];
+        $paginator = $this->getPaginator('timeComparisonByDates', $project, $paginatorParams);
+
+        list($metrics, $categories, $swimlanes) = $this->helper->analyticsTimes->buildByDates($project['id'], $from, $to);
+
+        $this->response->html(
+            $this->helper->layout->analytic('TimeMachine:analytic/spent_time_by_dates',
+                array(
+                    'project'       => $project,
+                    'categories'    => $categories,
+                    'swimlanes'     => $swimlanes,
+                    'from'          => $from,
+                    'to'            => $to,
+                    'userFormat'    => $this->dateParser->getUserDateFormat(),
+                    'paginator'     => $paginator,
+                    'metrics'       => $metrics,
+                    'title'         => t('Spent time / Dates'),
+                )
+            )
+        );
+
+    }
+
+    /**
+     * Get dates from/to from form request
+     *
+     * @return array
+     */
+    private function getDates()
+    {
+        $values = $this->request->getValues();
+
+        $from   = $this->request->getStringParam('from', date('Y-m-d', strtotime('first day of this month')));
+        $to     = $this->request->getStringParam('to', date('Y-m-d', strtotime('last day of this month')));
+
+        if (! empty($values)) {
+            $from = $this->dateParser->getIsoDate($values['from']);
+            $to = $this->dateParser->getIsoDate($values['to']);
+        }
+
+        // Return \DateTime
+        $from = (new \DateTime($from));
+        $to = (new \DateTime($to));
+        $to->setTime('23', '59', '59');
+
+        return array($from, $to);
+    }
+
+    /**
+     * @param $action
+     * @param $project
+     * @param array $params
+     *
+     * @return \Kanboard\Core\Paginator
+     */
+    private function getPaginator($action, $project, array $params = [])
+    {
+        $urlParams = array('plugin' => 'TimeMachine', 'project_id' => $project['id']);
+        if(!empty($params)) {
+            foreach ($params as $key => $param) {
+                $urlParams[$key] = $param;
+            }
+        }
+        return $this->paginator
+            ->setUrl(
+                'AnalyticsTimesController',
+                $action,
+                $urlParams
+            )
+            ->setMax(30)
+            ->setOrder(TaskModel::TABLE.'.id')
+            ->setQuery($this->taskQuery
+                ->withFilter(new TaskProjectFilter($project['id']))
+                ->getQuery()
+            )
+            ->calculate();
+    }
+}
diff --git a/plugins/TimeMachine/Controller/SubtaskController.php b/plugins/TimeMachine/Controller/SubtaskController.php
new file mode 100644
index 00000000..423a0d88
--- /dev/null
+++ b/plugins/TimeMachine/Controller/SubtaskController.php
@@ -0,0 +1,100 @@
+<?php
+
+namespace Kanboard\Plugin\TimeMachine\Controller;
+
+use Kanboard\Controller\BaseController;
+use Kanboard\Core\Controller\AccessForbiddenException;
+use Kanboard\Core\Controller\PageNotFoundException;
+
+/**
+ * Subtask controller
+ *
+ * @package  Kanboard\Plugin\TimeMachine\Controller
+ * @author   yvalentin
+ */
+class SubtaskController extends BaseController
+{
+
+    /**
+     * Edit form with subTaskTimeTracking
+     *
+     * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws AccessForbiddenException
+     * @throws PageNotFoundException
+     */
+    public function edit(array $values = [], array $valuesSttts = [], array $errors = [], array $errorsSttts = [])
+    {
+        $task = $this->getTask();
+        $subtask = $this->getSubtask($task);
+        $sttts = $this->subtaskTimeTrackingModel->getBySubTaskId($subtask['id']);
+
+        $this->response->html($this->template->render('subtask/edit', array(
+            'values'        => empty($values) ? $subtask : $values,
+            'errors'        => $errors,
+            'errorsSttts'   => $errorsSttts,
+            'users_list'    => $this->projectUserRoleModel->getAssignableUsersList($task['project_id']),
+            'status_list'   => $this->subtaskModel->getStatusList(),
+            'sttts'         => empty($valuesSttts) ? $sttts : $valuesSttts,
+            'subtask'       => $subtask,
+            'task'          => $task,
+        )));
+    }
+
+    /**
+     * Update and validate a subtask with subTaskTimeTracking
+     *
+     * @access public
+     */
+    public function update()
+    {
+        $task = $this->getTask();
+        $subtask = $this->getSubtask($task);
+
+        $values = $this->request->getValues();
+        $values['id'] = $subtask['id'];
+        $values['task_id'] = $task['id'];
+
+        // get subTaskTimeTracking values
+        $valuesSttts = $this->getSubTaskTimeTracking($values);
+
+        list($valid, $errors) = $this->subtaskValidator->validateModification($values);
+        list($validSttts, $errorsSttts) = $this->helper->subTaskTimeTrackingValidator->validates($valuesSttts);
+
+        if ($valid && !in_array(false, $validSttts)) {
+            if ($this->subtaskModel->update($values)
+                && $this->subtaskTimeTrackingModel->updates($valuesSttts, $subtask['id'], $task['id'])) {
+                $this->flash->success(t('Sub-task updated successfully.'));
+            } else {
+                $this->flash->failure(t('Unable to update your sub-task.'));
+            }
+
+            return $this->response->redirect($this->helper->url->to('TaskViewController', 'show', array('project_id' => $task['project_id'], 'task_id' => $task['id'])), true);
+        }
+
+        return $this->edit($values, $valuesSttts, $errors, $errorsSttts);
+    }
+
+    /**
+     * Get Sub Task Time Tracking from form values
+     *
+     * @param array $values
+     *
+     * @return array
+     */
+    private function getSubTaskTimeTracking(array &$values)
+    {
+        $sttts = [];
+        foreach ($values as $key => $value) {
+            if(strpos($key,'-') !== false) {
+                list($column, $id) = explode('-', $key);
+                $sttts[$id][$column] = $value;
+                $sttts[$id]['id'] = $id;
+                unset($values[$key]);
+            }
+        }
+
+        return $sttts;
+    }
+}
diff --git a/plugins/TimeMachine/Helper/AnalyticsTimes.php b/plugins/TimeMachine/Helper/AnalyticsTimes.php
new file mode 100644
index 00000000..c865a52a
--- /dev/null
+++ b/plugins/TimeMachine/Helper/AnalyticsTimes.php
@@ -0,0 +1,177 @@
+<?php
+
+namespace Kanboard\Plugin\TimeMachine\Helper;
+
+use Kanboard\Core\Base;
+use Kanboard\Model\SubtaskModel;
+use Kanboard\Model\SubtaskTimeTrackingModel;
+use Kanboard\Model\TaskModel;
+
+/**
+ * Analytics Times Comparison
+ *
+ * @package  AnalyticsTimes
+ * @author   yvalentin
+ */
+class AnalyticsTimes extends Base
+{
+
+    /**
+     * @param $project_id
+     *
+     * @return array
+     */
+    public function buildBySwimlane($project_id)
+    {
+        return $this->build($project_id, 'swimlaneModel', 'swimlane_id');
+    }
+
+    /**
+     * @param $project_id
+     *
+     * @return array
+     */
+    public function buildByCategories($project_id)
+    {
+        return $this->build($project_id, 'categoryModel', 'category_id');
+    }
+
+    /**
+     * Build report
+     *
+     * @param $project_id
+     * @param $model
+     * @param $column
+     *
+     * @return array
+     */
+    public function build($project_id, $model, $column)
+    {
+        $rows = $this->db->table(TaskModel::TABLE)
+                         ->columns('SUM(time_estimated) AS time_estimated', 'SUM(time_spent) AS time_spent', 'is_active', $column)
+                         ->eq('project_id', $project_id)
+                         ->groupBy('is_active', $column)
+                         ->findAll();
+
+//        ->gte('day', $from)
+//        ->lte('day', $to)
+
+        $metrics    = [];
+        $names  = [];
+
+        foreach ($rows as $row) {
+            if (!array_key_exists($row[$column],$names)) {
+                $name = $this->$model->getNameById($row[$column]);
+                $names[$row[$column]] = empty($name) ? t("Default") : $name;
+                $metrics[$names[$row[$column]]]['open']['time_spent'] = 0;
+                $metrics[$names[$row[$column]]]['open']['time_estimated'] = 0;
+                $metrics[$names[$row[$column]]]['closed']['time_spent'] = 0;
+                $metrics[$names[$row[$column]]]['closed']['time_estimated'] = 0;
+            }
+            $key = $row['is_active'] == TaskModel::STATUS_OPEN ? 'open' : 'closed';
+            $metrics[$names[$row[$column]]][$key]['time_spent'] = round((float) $row['time_spent'],2);
+            $metrics[$names[$row[$column]]][$key]['time_estimated'] = round((float) $row['time_estimated'],2);
+        }
+
+        return array($metrics, $names);
+    }
+
+    /**
+     * @param $project_id
+     * @param \DateTime $from
+     * @param \DateTime $to
+     *
+     * @return array
+     */
+    public function buildByDates($project_id, \DateTime $from, \DateTime $to)
+    {
+        $rows = $this->db->table(TaskModel::TABLE)
+                         ->columns(
+                             'tasks.id',
+                             'subtasks.id as s_id',
+                             'subtask_time_tracking.id as stt_id',
+                             'is_active',
+                             'category_id',
+                             'swimlane_id',
+                             'tasks.time_spent',
+                             'subtasks.time_spent as s_time_spent',
+                             'subtask_time_tracking.time_spent as stt_time_spent',
+                             'subtask_time_tracking.start as stt_start',
+                             'subtask_time_tracking.end as stt_end'
+                         )
+                         ->eq('project_id', $project_id)
+                         ->join(SubtaskModel::TABLE, 'task_id', 'id')
+                         ->join(SubtaskTimeTrackingModel::TABLE, 'subtask_id', 'id', SubtaskModel::TABLE)
+                        ->orderBy('tasks.id')
+                         ->findAll();
+
+        $tasks = [];
+        $categories = [];
+        $swimlanes = [];
+        $tmp = [];
+        foreach ($rows as $row) {
+            $task = $row['id'];
+            $subtask = $row['s_id'];
+            $stt = $row['stt_id'];
+            // Has sub tasks with time tracking
+            if (!is_null($task) && !is_null($subtask) && !is_null($stt)) {
+                // set Datetime
+                $sttStart = (new \DateTime())->setTimestamp($row['stt_start']);
+                $sttEnd = (new \DateTime())->setTimestamp($row['stt_end']);
+                // check if start after the date from and  end date before date to
+                if ($this->isInDate($sttStart, $sttEnd, $from, $to)) {
+                    // recalculate time spent
+                    // Get time spent for the period form
+                    $startCal = $sttStart <= $from ? $from : $sttStart;
+                    $endCal = $sttEnd > $to ? $to : $sttEnd;
+                    // Override stt_time_spent
+                    $row['stt_time_spentt'] = $this->dateParser->getHours($startCal, $endCal);
+                    // regroup data by task id and subTask for debug
+                    $tmp[$row['id']][$row['s_id']][$row['stt_id']] = $row;
+                    // Get value of spentTime to recalculate
+                    $this->initAndAdd($tasks, $task, $row);
+
+                    if (!array_key_exists($row['category_id'],$categories)) {
+                        $categories[$row['category_id']] = $this->categoryModel->getNameById($row['category_id']);
+                    }
+                    if (!array_key_exists($row['swimlane_id'],$swimlanes)) {
+                        $swimlanes[$row['swimlane_id']] = $this->swimlaneModel->getNameById($row['swimlane_id']);
+                    }
+                }
+            }
+        }
+        return array($tasks, $categories, $swimlanes);
+    }
+
+    /**
+     * @param array $tasks
+     * @param $taskId
+     * @param array $row
+     */
+    private function initAndAdd(array &$tasks, $taskId, array $row)
+    {
+        if(!array_key_exists($taskId, $tasks)) {
+            $tasks[$taskId]['open']['stt_time_spent'] = 0;
+            $tasks[$taskId]['closed']['stt_time_spent'] = 0;
+            $tasks[$taskId]['open']['time_spent'] = 0;
+            $tasks[$taskId]['closed']['time_spent'] = 0;
+            $tasks[$taskId]['swimlane_id'] = $row['swimlane_id'];
+            $tasks[$taskId]['category_id'] = $row['category_id'];
+        }
+        $isActive = $row['is_active'] == TaskModel::STATUS_OPEN ? 'open' : 'closed';
+        $tasks[$taskId][$isActive]['stt_time_spent'] += $row['stt_time_spent'];
+        $tasks[$taskId][$isActive]['time_spent'] = round((float) $row['time_spent'],2);
+    }
+
+    private function isInDate(\DateTime $sttStart, \DateTime $sttEnd, \DateTime $from, \DateTime $to)
+    {
+        return (
+            // stt is In the $from boundary
+            (($sttStart <= $from) && ($sttEnd > $from))
+            // stt is In the $to boundary
+           || (($sttStart < $to) && ($sttEnd >= $to))
+           // stt is In the $from and $to boundary
+           || (($sttStart >= $from) && ($sttEnd < $to ))
+        );
+    }
+}
diff --git a/plugins/TimeMachine/Helper/SubTaskTimeTracking.php b/plugins/TimeMachine/Helper/SubTaskTimeTracking.php
new file mode 100644
index 00000000..7197672a
--- /dev/null
+++ b/plugins/TimeMachine/Helper/SubTaskTimeTracking.php
@@ -0,0 +1,38 @@
+<?php
+
+
+namespace Kanboard\Plugin\TimeMachine\Helper;
+
+use Kanboard\Core\Base;
+
+/**
+ * Class SubTaskTimeTracking
+ *
+ * @package Kanboard\Plugin\TimeMachine\Helper
+ * @author yvalentin
+ */
+class SubTaskTimeTracking extends Base
+{
+
+    /**
+     * Datetime field
+     *
+     * @access public
+     * @param  string $label
+     * @param  string $name
+     * @param  array  $values
+     * @param  array  $errors
+     * @param  array  $attributes
+     * @return string
+     */
+    public function datetime($label, $name, array $values, array $errors = array(), array $attributes = array())
+    {
+        $userFormat = $this->dateParser->getUserDateTimeFormat();
+        $values = $this->dateParser->format($values, array($name), $userFormat);
+        $attributes = array_merge(array('placeholder="'.date($userFormat).'"'), $attributes);
+
+        return $this->helper->form->label($label, $name) .
+               $this->helper->form->text($name, $values, $errors, $attributes, 'form-datetime');
+    }
+
+}
diff --git a/plugins/TimeMachine/LICENSE b/plugins/TimeMachine/LICENSE
new file mode 100644
index 00000000..f288702d
--- /dev/null
+++ b/plugins/TimeMachine/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
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+                     END OF TERMS AND CONDITIONS
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+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/plugins/TimeMachine/Locale/fr_FR/translations.php b/plugins/TimeMachine/Locale/fr_FR/translations.php
new file mode 100644
index 00000000..a1a68308
--- /dev/null
+++ b/plugins/TimeMachine/Locale/fr_FR/translations.php
@@ -0,0 +1,11 @@
+<?php
+
+return array(
+    'Estimated vs actual time / Swimlanes' => 'Temps estimé vs réel / Swimlanes',
+    'Estimated vs actual time / Categories' => 'Temps estimé vs réel / Catégories',
+    'Spent time / Dates' => 'Temps passées / Dates',
+    'Total spent time / Dates' => 'Temps passées total / Dates',
+    'Default' => 'Par défaut',
+    'Categories' => 'Catégories',
+);
+
diff --git a/plugins/TimeMachine/Locale/pl_PL/translations.php b/plugins/TimeMachine/Locale/pl_PL/translations.php
new file mode 100644
index 00000000..4796ee8c
--- /dev/null
+++ b/plugins/TimeMachine/Locale/pl_PL/translations.php
@@ -0,0 +1,10 @@
+<?php
+
+return array(
+    'Estimated vs actual time / Swimlanes' => 'Szacowany vs rzeczywisty czas / Tory',
+    'Estimated vs actual time / Categories' => 'Szacowany vs rzeczywisty czas / Kategorie',
+    'Spent time / Dates' => 'Spędzony czas / Daty',
+    'Total spent time / Dates' => 'Łączny spędzony czas / Daty',
+    'Default' => 'Domyślnie',
+    'Categories' => 'Kategorie',
+);
diff --git a/plugins/TimeMachine/Makefile b/plugins/TimeMachine/Makefile
new file mode 100644
index 00000000..14e3ec1a
--- /dev/null
+++ b/plugins/TimeMachine/Makefile
@@ -0,0 +1,5 @@
+plugin=TimeMachine
+version=1.0.0
+archive:
+	@ echo "Build archive for plugin ${plugin} version=${version}"
+	@ git archive HEAD --prefix=${plugin}/ --format=zip -o ${plugin}-${version}.zip
\ No newline at end of file
diff --git a/plugins/TimeMachine/Model/SubtaskTimeTrackingModel.php b/plugins/TimeMachine/Model/SubtaskTimeTrackingModel.php
new file mode 100644
index 00000000..aff6b396
--- /dev/null
+++ b/plugins/TimeMachine/Model/SubtaskTimeTrackingModel.php
@@ -0,0 +1,147 @@
+<?php
+
+namespace Kanboard\Plugin\TimeMachine\Model;
+
+use Kanboard\Model\SubtaskModel;
+use Kanboard\Model\TaskModel;
+use Kanboard\Model\UserModel;
+
+/**
+ * Class SubtaskTimeTrackingModel
+ *
+ * @author yvalentin
+ * https://yohannvalentin.com
+ */
+class SubtaskTimeTrackingModel extends \Kanboard\Model\SubtaskTimeTrackingModel
+{
+    /**
+     *
+     * @param $subTask_id
+     *
+     * @return array
+     */
+    public function getBySubTaskId($subTask_id)
+    {
+        $sttts =  $this->db
+            ->table(self::TABLE)
+            ->columns(
+                self::TABLE.'.id',
+                self::TABLE.'.subtask_id',
+                self::TABLE.'.end',
+                self::TABLE.'.start',
+                self::TABLE.'.time_spent',
+                self::TABLE.'.user_id',
+                SubtaskModel::TABLE.'.task_id',
+                SubtaskModel::TABLE.'.title AS subtask_title',
+                UserModel::TABLE.'.username',
+                UserModel::TABLE.'.name AS user_fullname'
+            )
+            ->join(SubtaskModel::TABLE, 'id', 'subtask_id')
+            ->join(UserModel::TABLE, 'id', 'user_id', self::TABLE)
+            ->eq(SubtaskModel::TABLE.'.id', $subTask_id)
+            ->findAll();
+
+        $values = [];
+        foreach ($sttts as $key => $sttt) {
+            $values[$sttt['id']] = $sttt;
+            // This is for form input name
+            $values[$sttt['id']]['start-'.$sttt['id']]  = $sttt['start'];
+            $values[$sttt['id']]['end-'.$sttt['id']]    = $sttt['end'];
+        }
+
+        return $values;
+    }
+
+    /**
+     * Update a subTask Time Tracking
+     *
+     * @param array $values
+     * @param $subTaskId
+     * @param $taskId
+     * @param bool $fireEvent
+     *
+     * @return array
+     * @throws \Exception
+     */
+    public function updates(array $values, $subTaskId, $taskId,  $fireEvent = true)
+    {
+        $result = [];
+        foreach ($values as $key => $value) {
+            $value = $this->dateParser->convert($value, array('start'), true);
+            $value = $this->dateParser->convert($value, array('end'), true);
+            if (!empty($value['start']) && !empty($value['end'])) {
+                $value['time_spent'] = $this->dateParser->getHours(
+                    (new \DateTime())->setTimestamp($value['start']),
+                    (new \DateTime())->setTimestamp($value['end'])
+                );
+            } else {
+                $value['time_spent'] = 0;
+                $value['start'] = !empty($value['start']) ? $value['start'] : 0;
+                $value['end'] = !empty($value['end']) ? $value['end'] : 0;
+            }
+
+            $result[] = $this->db->table(self::TABLE)->eq('id', $key)->save($value);
+        }
+
+        if (!in_array(false, $result)) {
+            // Need to update task time tracking spent time and sub task too
+            $this->calculateSubtaskTimeSpent($subTaskId, $fireEvent);
+        }
+
+        return $result;
+    }
+
+    /**
+     * Update subtask time spent By calculation
+     *
+     * @access public
+     * @param  integer   $subtask_id
+     * @return bool
+     */
+    public function calculateSubtaskTimeSpent($subtask_id, $fireEvent)
+    {
+        $timeSpent = $this->db->table(self::TABLE)
+            ->eq('subtask_id', $subtask_id)
+            ->columns(
+                'SUM(time_spent) AS time_spent'
+            )
+            ->findOne();
+
+        $subtask = $this->subtaskModel->getById($subtask_id);
+
+        return $this->subtaskModel->update(array(
+            'id' => $subtask['id'],
+            'time_spent' => $timeSpent['time_spent'],
+            'task_id' => $subtask['task_id'],
+        ), $fireEvent);
+    }
+
+    /**
+     * Update task time tracking based on subtasks time tracking
+     *
+     * @access public
+     * @param  integer   $task_id    Task id
+     * @return bool
+     */
+    public function updateTaskTimeTracking($task_id)
+    {
+        $values = $this->calculateSubtaskTime($task_id);
+        // Do not update time_estimated or spend_time of task if sum of subtask time estimated is equal to 0
+        if($values['time_estimated'] == 0) {
+            unset($values['time_estimated']);
+        }
+        if($values['time_spent'] == 0) {
+            unset($values['time_spent']);
+        }
+
+        if (empty($values)) {
+            return true;
+        }
+
+        return $this->db
+            ->table(TaskModel::TABLE)
+            ->eq('id', $task_id)
+            ->update($values);
+    }
+
+}
diff --git a/plugins/TimeMachine/Plugin.php b/plugins/TimeMachine/Plugin.php
new file mode 100644
index 00000000..374f0f53
--- /dev/null
+++ b/plugins/TimeMachine/Plugin.php
@@ -0,0 +1,95 @@
+<?php
+namespace Kanboard\Plugin\TimeMachine;
+
+use Kanboard\Core\Plugin\Base;
+use Kanboard\Core\Translator;
+use Kanboard\Plugin\TimeMachine\Action\SubtaskTimerMoveTaskColumn;
+use Kanboard\Plugin\TimeMachine\Model\SubtaskTimeTrackingModel;
+
+class Plugin extends Base
+{
+    /**
+     *
+     */
+    public function initialize()
+    {
+        /***** AnalyticTimes *****/
+        $this->hook->on('template:layout:js',
+            array(
+                'template' => 'plugins/TimeMachine/Assets/js/components/chart-project-time-machine.js'
+            )
+        );
+        $this->template->hook->attach('template:analytic:sidebar', 'TimeMachine:analytic/sidebar');
+        $this->helper->register('analyticsTimes', '\Kanboard\Plugin\TimeMachine\Helper\AnalyticsTimes');
+
+        /***** SubTaskTimeTracking *****/
+        $this->helper->register('subTaskTimeTracking', '\Kanboard\Plugin\TimeMachine\Helper\SubTaskTimeTracking');
+        $this->helper->register('subTaskTimeTrackingValidator', '\Kanboard\Plugin\TimeMachine\Validator\SubTaskTimeTrackingValidator');
+        // Sub task time tracking Model extended
+        $this->container['subtaskTimeTrackingModel'] = $this->container->factory(function ($c) {
+            return new SubtaskTimeTrackingModel($c);
+        });
+
+        $this->template->setTemplateOverride('subtask/menu', 'TimeMachine:subtask/menu');
+        $this->template->setTemplateOverride('subtask/edit', 'TimeMachine:subtask/edit');
+        
+        // Override SubTaskTimerMoveTaskColumn to create subTask with user connected (User who move card)
+        $this->actionManager->register(new SubtaskTimerMoveTaskColumn($this->container));
+    }
+
+    /**
+     *
+     */
+    public function onStartup()
+    {
+        Translator::load($this->languageModel->getCurrentLanguage(), __DIR__.'/Locale');
+    }
+
+    /**
+     * @return string
+     */
+    public function getPluginName()
+    {
+        return 'TimeMachine';
+    }
+
+    /**
+     * @return string
+     */
+    public function getPluginDescription()
+    {
+        return t('Plugin to add time machine : Back to the Future (more analytics datas, edit form on subtask time tracking)');
+    }
+
+    /**
+     * @return string
+     */
+    public function getPluginAuthor()
+    {
+        return 'yvalentin';
+    }
+
+    /**
+     * @return string
+     */
+    public function getPluginVersion()
+    {
+        return '1.0.1';
+    }
+
+    /**
+     * @return string
+     */
+    public function getPluginHomepage()
+    {
+        return 'https://gitlab.com/yv-kanboard-plugin/time-machine';
+    }
+
+    /**
+     * @return string
+     */
+    public function getCompatibleVersion()
+    {
+        return '>=1.2.6';
+    }
+}
diff --git a/plugins/TimeMachine/README.md b/plugins/TimeMachine/README.md
new file mode 100644
index 00000000..5b762259
--- /dev/null
+++ b/plugins/TimeMachine/README.md
@@ -0,0 +1,61 @@
+# Kanboard - ⌛ Time Machine ⏳ - Plugin
+------------------
+
+**Plugin to add time machine : Back to the Future**
+
+- *Add a Analytics Times on project Analytics sidebar* 📊 :
+    - "estimated vs actual time" comparison:
+        - By swimlane
+        - By categories
+    - Spent time with start and end dates filter **!!! Attention! this is based on time tracking - 
+with the timer functionality on subtasks !!!**
+
+- *Add a form to edit start and end dates of subtask time tracking / timer ⏱* 
+
+- *Override Action:*
+    - SubtaskTimerMoveTaskColumn
+        
+        // This doesn't work for now 
+        
+        Create a subtask and activate the timer when moving a task to another column 
+        **with user session id (not with creator of the task)**
+
+Install:
+-------
+* To install, download the repo into the kanboard plugins folder.
+* Make sure the name of the folder is "TimeMachine".
+
+How it works:
+------------
+1. Install plugin
+
+2. Go Project Analytics to see new entries menus (see screenshot)
+
+3. You can edit start and end dates of your subtasks time tracking
+
+    On the task show's template, if you have subtasks with timer, 
+    you can edit start and end dates of each time tracking entry for this subtask 
+
+TODO:
+------------
+* Change Access map to authorize member/viewer (like customers) to see Analytics
+* Check only assigned member, creator or admin can change values on time tracking edition
+* Fix paginator on spent time by date analytic
+
+Screenshots:
+-----------
+1. By swimlane
+
+    ![AnalyticsTimes-swimlanes](https://gitlab.com/yv-kanboard-plugin/analytics-times/wikis/uploads/a00e312cb00c7fd131659341d10e9142/AnalyticsTimes-swimlanes.png)
+
+2. By categories
+    
+    ![AnalyticsTimes-categories](https://gitlab.com/yv-kanboard-plugin/analytics-times/wikis/uploads/5dad072e0740bf9d0c96a4dbfe65829d/AnalyticsTimes-categories.png)
+
+3. Spent time with start and end dates filter
+
+    ![AnalyticsTimes-spenttime-dates](https://gitlab.com/yv-kanboard-plugin/analytics-times/wikis/uploads/9a6293ec54662399c992e54e55cdf8c1/AnalyticsTimes-spenttime-dates.png)
+    
+4. Subtask time tracking edition
+    
+    ![SubtaskTimeTracking-edit](https://gitlab.com/yv-kanboard-plugin/analytics-times/wikis/uploads/ef2beef638138cb86a31a47c30a86f74/SubtaskTimeTrackingEdit.png)
\ No newline at end of file
diff --git a/plugins/TimeMachine/Template/analytic/sidebar.php b/plugins/TimeMachine/Template/analytic/sidebar.php
new file mode 100644
index 00000000..cc04bc1d
--- /dev/null
+++ b/plugins/TimeMachine/Template/analytic/sidebar.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * Created by yvalentin.
+ * https://yohannvalentin.com
+ *
+ * Date: 12/11/18
+ */
+?>
+
+<li <?= $this->app->checkMenuSelection('AnalyticsTimesController', 'timeComparisonBySwimlane') ?>>
+    <?= $this->modal->replaceLink(
+            t('Estimated vs actual time / Swimlanes'),
+            'AnalyticsTimesController',
+            'timeComparisonBySwimlane',
+            array(
+                'plugin' => 'TimeMachine',
+                'project_id' => $project['id']
+            )
+        )
+    ?>
+</li>
+<li <?= $this->app->checkMenuSelection('AnalyticsTimesController', 'timeComparisonByCategories') ?>>
+    <?= $this->modal->replaceLink(
+        t('Estimated vs actual time / Categories'),
+        'AnalyticsTimesController',
+        'timeComparisonByCategories',
+        array(
+            'plugin' => 'TimeMachine',
+            'project_id' => $project['id']
+        )
+    )
+    ?>
+</li>
+<!--TODO check if project has automatic action: task.move.column -  \Kanboard\Action\SubtaskTimerMoveTaskColumn -->
+<li <?= $this->app->checkMenuSelection('AnalyticsTimesController', 'timeComparisonByDates') ?>>
+    <?= $this->modal->replaceLink(
+        t('Spent time / Dates'),
+        'AnalyticsTimesController',
+        'timeComparisonByDates',
+        array(
+            'plugin' => 'TimeMachine',
+            'project_id' => $project['id']
+        )
+    )
+    ?>
+</li>
\ No newline at end of file
diff --git a/plugins/TimeMachine/Template/analytic/spent_time_by_dates.php b/plugins/TimeMachine/Template/analytic/spent_time_by_dates.php
new file mode 100644
index 00000000..47fa657c
--- /dev/null
+++ b/plugins/TimeMachine/Template/analytic/spent_time_by_dates.php
@@ -0,0 +1,100 @@
+<?php if (! $is_ajax): ?>
+    <div class="page-header">
+        <h2><?= t('Spent time / Dates') ?></h2>
+    </div>
+<?php endif ?>
+
+<div class="panel">
+    <?php $spentTime['total'] = 0; $spentTime['open'] = 0; $spentTime['closed'] = 0; ?>
+    <?php foreach ($metrics as $taskId => $metric) : ?>
+        <?php $spentTime['total'] += $metric['open']['stt_time_spent'] + $metric['closed']['stt_time_spent']?>
+        <?php $spentTime['open'] += $metric['open']['stt_time_spent']?>
+        <?php $spentTime['closed'] += $metric['closed']['stt_time_spent']?>
+    <?php endforeach; ?>
+    <?= t('Total spent time / Dates')?> : <?= $from->format($userFormat) ?> -> <?= $to->format($userFormat) ?>
+    <ul>
+        <li>
+            <strong>
+                <?= $this->text->e($spentTime['total']) ?>
+            </strong>
+            <i>(<?=t('Open').' : '.$this->text->e($spentTime['open']) ?>
+                - <?= t('Closed').' : '.$spentTime['closed'] ?>)</i>
+        </li>
+    </ul>
+</div>
+
+<form method="post"
+      class="form-inline"
+      style="text-align: center"
+      action="<?= $this->url->href(
+          'AnalyticsTimesController',
+          'timeComparisonByDates',
+          array('plugin' => 'TimeMachine', 'project_id' => $project['id']))
+      ?>"
+      autocomplete="off">
+    <?= $this->form->csrf() ?>
+    <?php $values['from'] = $from->getTimestamp() ?>
+    <?php $values['to'] = $to->getTimestamp() ?>
+    <?= $this->form->date(t('Start date'), 'from', $values) ?>
+    <?= $this->form->date(t('End date'), 'to', $values) ?>
+    <?= $this->modal->submitButtons(array('submitLabel' => t('Execute'))) ?>
+</form>
+<?php if (empty($metrics)): ?>
+    <p class="alert"><?= t('Not enough data to show the graph.') ?></p>
+<?php else: ?>
+    <?php if ($paginator->isEmpty()): ?>
+        <p class="alert"><?= t('No tasks found.') ?></p>
+    <?php elseif (! $paginator->isEmpty()): ?>
+        <?= $this->app->component('chart-project-analytics-spent-time-by-dates', array(
+            'metrics' => $spentTime,
+            'labelSpent' => t('Hours Spent'),
+            'labelClosed' => t('Closed'),
+            'labelOpen' => t('Open'),
+        )) ?>
+        <table class="table-fixed table-small table-scrolling margin-top">
+            <tr>
+                <th class="column-5"><?= $paginator->order(t('Id'), 'tasks.id') ?></th>
+                <th class="column-8"><?= $paginator->order(t('Categories'), 'tasks.category_id') ?></th>
+                <th class="column-8"><?= $paginator->order(t('Swimlane'), 'tasks.swimlane_id') ?></th>
+                <th><?= $paginator->order(t('Title'), 'tasks.title') ?></th>
+                <th class="column-5"><?= $paginator->order(t('Status'), 'tasks.is_active') ?></th>
+                <th class="column-13"><?= t('Spent time / Dates')?></th>
+                <th class="column-9"><?= $paginator->order(t('Hours Spent'), 'tasks.time_spent') ?></th>
+            </tr>
+            <?php foreach ($paginator->getCollection() as $task): ?>
+                <?php if (array_key_exists($task['id'], $metrics)) : ?>
+                    <tr>
+                        <td class="task-table color-<?= $task['color_id'] ?>">
+                            <?= $this->url->link('#'.$this->text->e($task['id']), 'TaskViewController', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id']), false, '', t('View this task')) ?>
+                        </td>
+                        <td class="task-table category-<?= $task['category_id'] ?>">
+                            <?= $this->text->e($categories[$task['category_id']]) ?>
+                        </td>
+                        <td class="task-table swimlane-<?= $task['swimlane_id'] ?>">
+                            <?= $this->text->e($swimlanes[$task['swimlane_id']]) ?>
+                        </td>
+                        <td>
+                            <?= $this->url->link($this->text->e($task['title']), 'TaskViewController', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id']), false, '', t('View this task')) ?>
+                        </td>
+                        <td>
+                            <?php if ($task['is_active'] == \Kanboard\Model\TaskModel::STATUS_OPEN): ?>
+                                <?php $isActive = "open" ?>
+                                <?= t('Open') ?>
+                            <?php else: ?>
+                                <?php $isActive = "closed" ?>
+                                <?= t('Closed') ?>
+                            <?php endif ?>
+                        </td>
+                        <td>
+                            <?= $this->text->e($metrics[$task['id']][$isActive]['stt_time_spent']) ?>
+                        </td>
+                        <td>
+                            <?= $this->text->e($metrics[$task['id']][$isActive]['time_spent']) ?>
+                        </td>
+                    </tr>
+                <?php endif; ?>
+            <?php endforeach ?>
+        </table>
+        <?= $paginator ?>
+    <?php endif ?>
+<?php endif ?>
diff --git a/plugins/TimeMachine/Template/analytic/time_comparison_by_categories.php b/plugins/TimeMachine/Template/analytic/time_comparison_by_categories.php
new file mode 100644
index 00000000..fc838374
--- /dev/null
+++ b/plugins/TimeMachine/Template/analytic/time_comparison_by_categories.php
@@ -0,0 +1,84 @@
+<?php if (! $is_ajax): ?>
+    <div class="page-header">
+        <h2><?= t('Estimated vs actual time / Categories') ?></h2>
+    </div>
+<?php endif ?>
+
+<div class="panel">
+    <?php foreach ($metrics as $categorieName => $metricByCategories) : ?>
+        <p><strong><?= $categorieName ?></strong></p>
+        <ul>
+            <li>
+                <?= t('Estimated hours: ') ?>
+                <strong>
+                    <?= $this->text->e($metricByCategories['open']['time_estimated'] + $metricByCategories['closed']['time_estimated']) ?>
+                </strong>
+                <i>(<?=t('Open').' : '.$this->text->e($metricByCategories['open']['time_estimated']) ?>
+                    - <?= t('Closed').' : '.$metricByCategories['closed']['time_estimated'] ?>)</i>
+            </li>
+            <li>
+                <?= t('Actual hours: ')?>
+                <strong>
+                    <?= $this->text->e($metricByCategories['open']['time_spent'] + $metricByCategories['closed']['time_spent']) ?>
+                </strong>
+                <i>(<?=t('Open').' : '.$this->text->e($metricByCategories['open']['time_spent']) ?>
+                    - <?= t('Closed').' : '.$metricByCategories['closed']['time_spent'] ?>)</i>
+            </li>
+        </ul>
+    <?php endforeach; ?>
+</div>
+
+<?php if (empty($metrics)): ?>
+    <p class="alert"><?= t('Not enough data to show the graph.') ?></p>
+<?php else: ?>
+    <?php if ($paginator->isEmpty()): ?>
+        <p class="alert"><?= t('No tasks found.') ?></p>
+    <?php elseif (! $paginator->isEmpty()): ?>
+        <?= $this->app->component('chart-project-analytics-time-comparison', array(
+            'metrics' => $metrics,
+            'labelSpent' => t('Hours Spent'),
+            'labelEstimated' => t('Hours Estimated'),
+            'labelClosed' => t('Closed'),
+            'labelOpen' => t('Open'),
+        )) ?>
+
+        <table class="table-fixed table-small table-scrolling">
+            <tr>
+                <th class="column-5"><?= $paginator->order(t('Id'), 'tasks.id') ?></th>
+                <th class="column-8"><?= $paginator->order(t('Categories'), 'tasks.category_id') ?></th>
+                <th><?= $paginator->order(t('Title'), 'tasks.title') ?></th>
+                <th class="column-10"><?= $paginator->order(t('Status'), 'tasks.is_active') ?></th>
+                <th class="column-12"><?= $paginator->order(t('Estimated Time'), 'tasks.time_estimated') ?></th>
+                <th class="column-12"><?= $paginator->order(t('Actual Time'), 'tasks.time_spent') ?></th>
+            </tr>
+            <?php foreach ($paginator->getCollection() as $task): ?>
+            <tr>
+                <td class="task-table color-<?= $task['color_id'] ?>">
+                    <?= $this->url->link('#'.$this->text->e($task['id']), 'TaskViewController', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id']), false, '', t('View this task')) ?>
+                </td>
+                <td class="task-table swimlane-<?= $task['category_id'] ?>">
+                    <?= $this->text->e($categories[$task['category_id']]) ?>
+                </td>
+                <td>
+                    <?= $this->url->link($this->text->e($task['title']), 'TaskViewController', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id']), false, '', t('View this task')) ?>
+                </td>
+                <td>
+                    <?php if ($task['is_active'] == \Kanboard\Model\TaskModel::STATUS_OPEN): ?>
+                        <?= t('Open') ?>
+                    <?php else: ?>
+                        <?= t('Closed') ?>
+                    <?php endif ?>
+                </td>
+                <td>
+                    <?= $this->text->e($task['time_estimated']) ?>
+                </td>
+                <td>
+                    <?= $this->text->e($task['time_spent']) ?>
+                </td>
+            </tr>
+            <?php endforeach ?>
+        </table>
+
+        <?= $paginator ?>
+    <?php endif ?>
+<?php endif ?>
diff --git a/plugins/TimeMachine/Template/analytic/time_comparison_by_swimlane.php b/plugins/TimeMachine/Template/analytic/time_comparison_by_swimlane.php
new file mode 100644
index 00000000..95fd7a41
--- /dev/null
+++ b/plugins/TimeMachine/Template/analytic/time_comparison_by_swimlane.php
@@ -0,0 +1,84 @@
+<?php if (! $is_ajax): ?>
+    <div class="page-header">
+        <h2><?= t('Estimated vs actual time / Swimlanes') ?></h2>
+    </div>
+<?php endif ?>
+
+<div class="panel">
+    <?php foreach ($metrics as $swimlaneName => $metricBySwimlane) : ?>
+        <p><strong><?= $swimlaneName ?></strong></p>
+        <ul>
+            <li>
+                <?= t('Estimated hours: ') ?>
+                <strong>
+                    <?= $this->text->e($metricBySwimlane['open']['time_estimated'] + $metricBySwimlane['closed']['time_estimated']) ?>
+                </strong>
+                <i>(<?=t('Open').' : '.$this->text->e($metricBySwimlane['open']['time_estimated']) ?>
+                    - <?= t('Closed').' : '.$metricBySwimlane['closed']['time_estimated'] ?>)</i>
+            </li>
+            <li>
+                <?= t('Actual hours: ')?>
+                <strong>
+                    <?= $this->text->e($metricBySwimlane['open']['time_spent'] + $metricBySwimlane['closed']['time_spent']) ?>
+                </strong>
+                <i>(<?=t('Open').' : '.$this->text->e($metricBySwimlane['open']['time_spent']) ?>
+                    - <?= t('Closed').' : '.$metricBySwimlane['closed']['time_spent'] ?>)</i>
+            </li>
+        </ul>
+    <?php endforeach; ?>
+</div>
+
+<?php if (empty($metrics)): ?>
+    <p class="alert"><?= t('Not enough data to show the graph.') ?></p>
+<?php else: ?>
+    <?php if ($paginator->isEmpty()): ?>
+        <p class="alert"><?= t('No tasks found.') ?></p>
+    <?php elseif (! $paginator->isEmpty()): ?>
+        <?= $this->app->component('chart-project-analytics-time-comparison', array(
+            'metrics' => $metrics,
+            'labelSpent' => t('Hours Spent'),
+            'labelEstimated' => t('Hours Estimated'),
+            'labelClosed' => t('Closed'),
+            'labelOpen' => t('Open'),
+        )) ?>
+
+        <table class="table-fixed table-small table-scrolling">
+            <tr>
+                <th class="column-5"><?= $paginator->order(t('Id'), 'tasks.id') ?></th>
+                <th class="column-8"><?= $paginator->order(t('Swimlane'), 'tasks.swimlane_id') ?></th>
+                <th><?= $paginator->order(t('Title'), 'tasks.title') ?></th>
+                <th class="column-10"><?= $paginator->order(t('Status'), 'tasks.is_active') ?></th>
+                <th class="column-12"><?= $paginator->order(t('Estimated Time'), 'tasks.time_estimated') ?></th>
+                <th class="column-12"><?= $paginator->order(t('Actual Time'), 'tasks.time_spent') ?></th>
+            </tr>
+            <?php foreach ($paginator->getCollection() as $task): ?>
+            <tr>
+                <td class="task-table color-<?= $task['color_id'] ?>">
+                    <?= $this->url->link('#'.$this->text->e($task['id']), 'TaskViewController', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id']), false, '', t('View this task')) ?>
+                </td>
+                <td class="task-table swimlane-<?= $task['swimlane_id'] ?>">
+                    <?= $this->text->e($swimlanes[$task['swimlane_id']]) ?>
+                </td>
+                <td>
+                    <?= $this->url->link($this->text->e($task['title']), 'TaskViewController', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id']), false, '', t('View this task')) ?>
+                </td>
+                <td>
+                    <?php if ($task['is_active'] == \Kanboard\Model\TaskModel::STATUS_OPEN): ?>
+                        <?= t('Open') ?>
+                    <?php else: ?>
+                        <?= t('Closed') ?>
+                    <?php endif ?>
+                </td>
+                <td>
+                    <?= $this->text->e($task['time_estimated']) ?>
+                </td>
+                <td>
+                    <?= $this->text->e($task['time_spent']) ?>
+                </td>
+            </tr>
+            <?php endforeach ?>
+        </table>
+
+        <?= $paginator ?>
+    <?php endif ?>
+<?php endif ?>
diff --git a/plugins/TimeMachine/Template/subtask/edit.php b/plugins/TimeMachine/Template/subtask/edit.php
new file mode 100644
index 00000000..7f20075c
--- /dev/null
+++ b/plugins/TimeMachine/Template/subtask/edit.php
@@ -0,0 +1,28 @@
+<div class="page-header">
+    <h2><?= t('Edit a sub-task') ?></h2>
+</div>
+
+<form method="post" action="<?= $this->url->href('SubtaskController', 'update', array('plugin' => 'TimeMachine', 'task_id' => $task['id'], 'project_id' => $task['project_id'], 'subtask_id' => $subtask['id'])) ?>" autocomplete="off">
+    <?= $this->form->csrf() ?>
+
+    <?= $this->subtask->renderTitleField($values, $errors, array('autofocus')) ?>
+    <?= $this->subtask->renderAssigneeField($users_list, $values, $errors) ?>
+    <?= $this->subtask->renderTimeEstimatedField($values, $errors) ?>
+    <?= $this->subtask->renderTimeSpentField($values, $errors) ?>
+    <div class="subtask-time-tracking-edit form-inline">
+        <h3><strong>Time Tracking details</strong></h3>
+        <?php foreach ($sttts as $key => $sttt) :?>
+            <?php $errorsSttt = isset($errorsSttts[$key]) ? $errorsSttts[$key]: []; ?>
+            <div>
+                <?= $sttt['username']?> :
+                <?= $this->helper->form->datetime(t('Start Date'), 'start-'.$sttt['id'], $sttt, $errorsSttt) ?>
+                <?= $this->helper->form->datetime(t('End Date'), 'end-'.$sttt['id'], $sttt, $errorsSttt) ?>
+                / <?=t('Time spent')?> :  <?= $sttt['time_spent']?>
+            </div>
+        <?php endforeach; ?>
+    </div>
+
+    <?= $this->hook->render('template:subtask:form:edit', array('values' => $values, 'errors' => $errors)) ?>
+
+    <?= $this->modal->submitButtons() ?>
+</form>
diff --git a/plugins/TimeMachine/Template/subtask/menu.php b/plugins/TimeMachine/Template/subtask/menu.php
new file mode 100644
index 00000000..5f8a41f8
--- /dev/null
+++ b/plugins/TimeMachine/Template/subtask/menu.php
@@ -0,0 +1,21 @@
+<?php
+/**
+ * Created by yvalentin.
+ * https://yohannvalentin.com
+ *
+ */
+?>
+<div class="dropdown">
+    <a href="#" class="dropdown-menu dropdown-menu-link-icon"><i class="fa fa-cog"></i><i class="fa fa-caret-down"></i></a>
+    <ul>
+        <li>
+            <?= $this->modal->medium('edit', t('Edit'), 'SubtaskController', 'edit', array('plugin' => 'TimeMachine', 'task_id' => $task['id'], 'project_id' => $task['project_id'], 'subtask_id' => $subtask['id'])) ?>
+        </li>
+        <li>
+            <?= $this->modal->confirm('trash-o', t('Remove'), 'SubtaskController', 'confirm', array('task_id' => $task['id'], 'project_id' => $task['project_id'], 'subtask_id' => $subtask['id'])) ?>
+        </li>
+        <li>
+            <?= $this->modal->confirm('clone', t('Convert to task'), 'SubtaskConverterController', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id'], 'subtask_id' => $subtask['id'])) ?>
+        </li>
+    </ul>
+</div>
\ No newline at end of file
diff --git a/plugins/TimeMachine/Test/PluginTest.php b/plugins/TimeMachine/Test/PluginTest.php
new file mode 100644
index 00000000..ad56a5b4
--- /dev/null
+++ b/plugins/TimeMachine/Test/PluginTest.php
@@ -0,0 +1,19 @@
+<?php
+require_once '../../../tests/units/Base.php';
+
+use Kanboard\Plugin\TimeMachine\Plugin;
+
+class PluginTest extends Base
+{
+    public function testPlugin()
+    {
+        $plugin = new Plugin($this->container);
+        $this->assertSame(null, $plugin->initialize());
+        $this->assertSame(null, $plugin->onStartup());
+        $this->assertNotEmpty($plugin->getPluginName());
+        $this->assertNotEmpty($plugin->getPluginDescription());
+        $this->assertNotEmpty($plugin->getPluginAuthor());
+        $this->assertNotEmpty($plugin->getPluginVersion());
+        $this->assertNotEmpty($plugin->getPluginHomepage());
+    }
+}
\ No newline at end of file
diff --git a/plugins/TimeMachine/Validator/SubTaskTimeTrackingValidator.php b/plugins/TimeMachine/Validator/SubTaskTimeTrackingValidator.php
new file mode 100644
index 00000000..28421b66
--- /dev/null
+++ b/plugins/TimeMachine/Validator/SubTaskTimeTrackingValidator.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Kanboard\Plugin\TimeMachine\Validator;
+
+use Kanboard\Validator\BaseValidator;
+use SimpleValidator\Validator;
+use SimpleValidator\Validators;
+
+/**
+ * SubTask Time Tracking Validator
+ *
+ * @package  Kanboard\Validator
+ * @author   Frederic Guillot
+ */
+class SubTaskTimeTrackingValidator extends BaseValidator
+{
+
+    /**
+     * Validate SubTackTimeTracking from form
+     *
+     * @param  array   $values           Form values
+     *
+     * @return array   $valid, $errors   [0] = Success or not, [1] = List of errors
+     */
+    public function validates(array $values)
+    {
+        $valids = [];
+        $errors = [];
+
+        foreach ($values as $key => $value) {
+            $rules = array(
+                new Validators\Required('id', t('The task time tracking id is required')),
+                new Validators\Date('start', t('Invalid date'), $this->dateParser->getParserFormats()),
+                new Validators\Date('end', t('Invalid date'), $this->dateParser->getParserFormats()),
+            );
+
+            $v = new Validator($value, $rules);
+
+            $valids[$key] = $v->execute();
+            $errors[$key] = $v->getErrors();
+        }
+
+        return array(
+            $valids,
+            $errors
+        );
+    }
+}