Split Board model into multiple classes

29 files changed, 240 insertions, 350 deletions

diff --git a/app/Action/CommentCreationMoveTaskColumn.php b/app/Action/CommentCreationMoveTaskColumn.php
index 4473cf91..11224d67 100644
--- a/app/Action/CommentCreationMoveTaskColumn.php
+++ b/app/Action/CommentCreationMoveTaskColumn.php
@@ -71,7 +71,7 @@ class CommentCreationMoveTaskColumn extends Base
             return false;
         }
 
-        $column = $this->board->getColumn($data['column_id']);
+        $column = $this->column->getById($data['column_id']);
 
         return (bool) $this->comment->create(array(
             'comment' => t('Moved to column %s', $column['title']),
diff --git a/app/Action/TaskDuplicateAnotherProject.php b/app/Action/TaskDuplicateAnotherProject.php
index 5bcdce08..5f05136e 100644
--- a/app/Action/TaskDuplicateAnotherProject.php
+++ b/app/Action/TaskDuplicateAnotherProject.php
@@ -74,7 +74,7 @@ class TaskDuplicateAnotherProject extends Base
      */
     public function doAction(array $data)
     {
-        $destination_column_id = $this->board->getFirstColumn($this->getParam('project_id'));
+        $destination_column_id = $this->column->getFirstColumnId($this->getParam('project_id'));
         return (bool) $this->taskDuplication->duplicateToProject($data['task_id'], $this->getParam('project_id'), null, $destination_column_id);
     }
 
diff --git a/app/Analytic/AverageTimeSpentColumnAnalytic.php b/app/Analytic/AverageTimeSpentColumnAnalytic.php
index c3cff548..bef55419 100644
--- a/app/Analytic/AverageTimeSpentColumnAnalytic.php
+++ b/app/Analytic/AverageTimeSpentColumnAnalytic.php
@@ -40,7 +40,7 @@ class AverageTimeSpentColumnAnalytic extends Base
     private function initialize($project_id)
     {
         $stats = array();
-        $columns = $this->board->getColumnsList($project_id);
+        $columns = $this->column->getList($project_id);
 
         foreach ($columns as $column_id => $column_title) {
             $stats[$column_id] = array(
diff --git a/app/Analytic/TaskDistributionAnalytic.php b/app/Analytic/TaskDistributionAnalytic.php
index 614c5f72..838652e3 100644
--- a/app/Analytic/TaskDistributionAnalytic.php
+++ b/app/Analytic/TaskDistributionAnalytic.php
@@ -23,7 +23,7 @@ class TaskDistributionAnalytic extends Base
     {
         $metrics = array();
         $total = 0;
-        $columns = $this->board->getColumns($project_id);
+        $columns = $this->column->getAll($project_id);
 
         foreach ($columns as $column) {
             $nb_tasks = $this->taskFinder->countByColumnId($project_id, $column['id']);
diff --git a/app/Api/Board.php b/app/Api/Board.php
index d615b1dc..185ac51a 100644
--- a/app/Api/Board.php
+++ b/app/Api/Board.php
@@ -15,39 +15,4 @@ class Board extends Base
         $this->checkProjectPermission($project_id);
         return $this->board->getBoard($project_id);
     }
-
-    public function getColumns($project_id)
-    {
-        return $this->board->getColumns($project_id);
-    }
-
-    public function getColumn($column_id)
-    {
-        return $this->board->getColumn($column_id);
-    }
-
-    public function moveColumnUp($project_id, $column_id)
-    {
-        return $this->board->moveUp($project_id, $column_id);
-    }
-
-    public function moveColumnDown($project_id, $column_id)
-    {
-        return $this->board->moveDown($project_id, $column_id);
-    }
-
-    public function updateColumn($column_id, $title, $task_limit = 0, $description = '')
-    {
-        return $this->board->updateColumn($column_id, $title, $task_limit, $description);
-    }
-
-    public function addColumn($project_id, $title, $task_limit = 0, $description = '')
-    {
-        return $this->board->addColumn($project_id, $title, $task_limit, $description);
-    }
-
-    public function removeColumn($column_id)
-    {
-        return $this->board->removeColumn($column_id);
-    }
 }
diff --git a/app/Api/Column.php b/app/Api/Column.php
new file mode 100644
index 00000000..ddc3a5d0
--- /dev/null
+++ b/app/Api/Column.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Kanboard\Api;
+
+/**
+ * Column API controller
+ *
+ * @package  api
+ * @author   Frederic Guillot
+ */
+class Column extends Base
+{
+    public function getColumns($project_id)
+    {
+        return $this->column->getAll($project_id);
+    }
+
+    public function getColumn($column_id)
+    {
+        return $this->column->getById($column_id);
+    }
+
+    public function updateColumn($column_id, $title, $task_limit = 0, $description = '')
+    {
+        return $this->column->update($column_id, $title, $task_limit, $description);
+    }
+
+    public function addColumn($project_id, $title, $task_limit = 0, $description = '')
+    {
+        return $this->column->create($project_id, $title, $task_limit, $description);
+    }
+
+    public function removeColumn($column_id)
+    {
+        return $this->column->remove($column_id);
+    }
+
+    public function changeColumnPosition($project_id, $column_id, $position)
+    {
+        return $this->column->changePosition($project_id, $column_id, $position);
+    }
+}
diff --git a/app/Controller/Action.php b/app/Controller/Action.php
index 482a210b..6c324324 100644
--- a/app/Controller/Action.php
+++ b/app/Controller/Action.php
@@ -27,7 +27,7 @@ class Action extends Base
             'available_actions' => $this->actionManager->getAvailableActions(),
             'available_events' => $this->eventManager->getAll(),
             'available_params' => $this->actionManager->getAvailableParameters($actions),
-            'columns_list' => $this->board->getColumnsList($project['id']),
+            'columns_list' => $this->column->getList($project['id']),
             'users_list' => $this->projectUserRole->getAssignableUsersList($project['id']),
             'projects_list' => $this->projectUserRole->getProjectsByUser($this->userSession->getId()),
             'colors_list' => $this->color->getList(),
@@ -86,7 +86,7 @@ class Action extends Base
         $this->response->html($this->helper->layout->project('action/params', array(
             'values' => $values,
             'action_params' => $action_params,
-            'columns_list' => $this->board->getColumnsList($project['id']),
+            'columns_list' => $this->column->getList($project['id']),
             'users_list' => $this->projectUserRole->getAssignableUsersList($project['id']),
             'projects_list' => $projects_list,
             'colors_list' => $this->color->getList(),
diff --git a/app/Controller/BoardPopover.php b/app/Controller/BoardPopover.php
index 965669ff..63dab302 100644
--- a/app/Controller/BoardPopover.php
+++ b/app/Controller/BoardPopover.php
@@ -112,7 +112,7 @@ class BoardPopover extends Base
         $this->response->html($this->template->render('board/popover_close_all_tasks_column', array(
             'project' => $project,
             'nb_tasks' => $this->taskFinder->countByColumnAndSwimlaneId($project['id'], $column_id, $swimlane_id),
-            'column' => $this->board->getColumnTitleById($column_id),
+            'column' => $this->column->getColumnTitleById($column_id),
             'swimlane' => $this->swimlane->getNameById($swimlane_id) ?: t($project['default_swimlane']),
             'values' => array('column_id' => $column_id, 'swimlane_id' => $swimlane_id),
         )));
@@ -129,7 +129,7 @@ class BoardPopover extends Base
         $values = $this->request->getValues();
 
         $this->taskStatus->closeTasksBySwimlaneAndColumn($values['swimlane_id'], $values['column_id']);
-        $this->flash->success(t('All tasks of the column "%s" and the swimlane "%s" have been closed successfully.', $this->board->getColumnTitleById($values['column_id']), $this->swimlane->getNameById($values['swimlane_id']) ?: t($project['default_swimlane'])));
+        $this->flash->success(t('All tasks of the column "%s" and the swimlane "%s" have been closed successfully.', $this->column->getColumnTitleById($values['column_id']), $this->swimlane->getNameById($values['swimlane_id']) ?: t($project['default_swimlane'])));
         $this->response->redirect($this->helper->url->to('board', 'show', array('project_id' => $project['id'])));
     }
 }
diff --git a/app/Controller/Column.php b/app/Controller/Column.php
index 329413ef..e02c7dcb 100644
--- a/app/Controller/Column.php
+++ b/app/Controller/Column.php
@@ -18,7 +18,7 @@ class Column extends Base
     public function index()
     {
         $project = $this->getProject();
-        $columns = $this->board->getColumns($project['id']);
+        $columns = $this->column->getAll($project['id']);
 
         $this->response->html($this->helper->layout->project('column/index', array(
             'columns' => $columns,
@@ -35,7 +35,7 @@ class Column extends Base
     public function create(array $values = array(), array $errors = array())
     {
         $project = $this->getProject();
-        $columns = $this->board->getColumnsList($project['id']);
+        $columns = $this->column->getList($project['id']);
 
         if (empty($values)) {
             $values = array('project_id' => $project['id']);
@@ -62,7 +62,7 @@ class Column extends Base
         list($valid, $errors) = $this->columnValidator->validateCreation($values);
 
         if ($valid) {
-            if ($this->board->addColumn($project['id'], $values['title'], $values['task_limit'], $values['description'])) {
+            if ($this->column->create($project['id'], $values['title'], $values['task_limit'], $values['description'])) {
                 $this->flash->success(t('Column created successfully.'));
                 return $this->response->redirect($this->helper->url->to('column', 'index', array('project_id' => $project['id'])), true);
             } else {
@@ -81,7 +81,7 @@ class Column extends Base
     public function edit(array $values = array(), array $errors = array())
     {
         $project = $this->getProject();
-        $column = $this->board->getColumn($this->request->getIntegerParam('column_id'));
+        $column = $this->column->getById($this->request->getIntegerParam('column_id'));
 
         $this->response->html($this->helper->layout->project('column/edit', array(
             'errors' => $errors,
@@ -105,7 +105,7 @@ class Column extends Base
         list($valid, $errors) = $this->columnValidator->validateModification($values);
 
         if ($valid) {
-            if ($this->board->updateColumn($values['id'], $values['title'], $values['task_limit'], $values['description'])) {
+            if ($this->column->update($values['id'], $values['title'], $values['task_limit'], $values['description'])) {
                 $this->flash->success(t('Board updated successfully.'));
                 $this->response->redirect($this->helper->url->to('column', 'index', array('project_id' => $project['id'])));
             } else {
@@ -144,7 +144,7 @@ class Column extends Base
         $project = $this->getProject();
 
         $this->response->html($this->helper->layout->project('column/remove', array(
-            'column' => $this->board->getColumn($this->request->getIntegerParam('column_id')),
+            'column' => $this->column->getById($this->request->getIntegerParam('column_id')),
             'project' => $project,
             'title' => t('Remove a column from a board')
         )));
@@ -159,9 +159,9 @@ class Column extends Base
     {
         $project = $this->getProject();
         $this->checkCSRFParam();
-        $column = $this->board->getColumn($this->request->getIntegerParam('column_id'));
+        $column_id = $this->request->getIntegerParam('column_id');
 
-        if (! empty($column) && $this->board->removeColumn($column['id'])) {
+        if ($this->column->remove($column_id)) {
             $this->flash->success(t('Column removed successfully.'));
         } else {
             $this->flash->failure(t('Unable to remove this column.'));
diff --git a/app/Controller/Gantt.php b/app/Controller/Gantt.php
index 5dbd1243..9ffa277f 100644
--- a/app/Controller/Gantt.php
+++ b/app/Controller/Gantt.php
@@ -103,7 +103,7 @@ class Gantt extends Base
 
         $values = $values + array(
             'project_id' => $project['id'],
-            'column_id' => $this->board->getFirstColumn($project['id']),
+            'column_id' => $this->column->getFirstColumnId($project['id']),
             'position' => 1
         );
 
diff --git a/app/Controller/Task.php b/app/Controller/Task.php
index 98b7a041..539d377b 100644
--- a/app/Controller/Task.php
+++ b/app/Controller/Task.php
@@ -36,7 +36,7 @@ class Task extends Base
             'subtasks' => $this->subtask->getAll($task['id']),
             'links' => $this->taskLink->getAllGroupedByLabel($task['id']),
             'task' => $task,
-            'columns_list' => $this->board->getColumnsList($task['project_id']),
+            'columns_list' => $this->column->getList($task['project_id']),
             'colors_list' => $this->color->getList(),
             'title' => $task['title'],
             'no_layout' => true,
@@ -74,7 +74,7 @@ class Task extends Base
             'task' => $task,
             'values' => $values,
             'link_label_list' => $this->link->getList(0, false),
-            'columns_list' => $this->board->getColumnsList($task['project_id']),
+            'columns_list' => $this->column->getList($task['project_id']),
             'colors_list' => $this->color->getList(),
             'users_list' => $this->projectUserRole->getAssignableUsersList($task['project_id'], true, false, false),
             'title' => $task['project_name'].' &gt; '.$task['title'],
diff --git a/app/Controller/Taskcreation.php b/app/Controller/Taskcreation.php
index f1ac7272..1d8a0e29 100644
--- a/app/Controller/Taskcreation.php
+++ b/app/Controller/Taskcreation.php
@@ -36,7 +36,7 @@ class Taskcreation extends Base
             'project' => $project,
             'errors' => $errors,
             'values' => $values + array('project_id' => $project['id']),
-            'columns_list' => $this->board->getColumnsList($project['id']),
+            'columns_list' => $this->column->getList($project['id']),
             'users_list' => $this->projectUserRole->getAssignableUsersList($project['id'], true, false, true),
             'colors_list' => $this->color->getList(),
             'categories_list' => $this->category->getList($project['id']),
diff --git a/app/Controller/Taskduplication.php b/app/Controller/Taskduplication.php
index 7e7fccd6..7641a48d 100644
--- a/app/Controller/Taskduplication.php
+++ b/app/Controller/Taskduplication.php
@@ -115,7 +115,7 @@ class Taskduplication extends Base
             $dst_project_id = $this->request->getIntegerParam('dst_project_id', key($projects_list));
 
             $swimlanes_list = $this->swimlane->getList($dst_project_id, false, true);
-            $columns_list = $this->board->getColumnsList($dst_project_id);
+            $columns_list = $this->column->getList($dst_project_id);
             $categories_list = $this->category->getList($dst_project_id);
             $users_list = $this->projectUserRole->getAssignableUsersList($dst_project_id);
 
diff --git a/app/Formatter/TaskFilterGanttFormatter.php b/app/Formatter/TaskFilterGanttFormatter.php
index 08059d4c..a4eef1ee 100644
--- a/app/Formatter/TaskFilterGanttFormatter.php
+++ b/app/Formatter/TaskFilterGanttFormatter.php
@@ -47,7 +47,7 @@ class TaskFilterGanttFormatter extends TaskFilter implements FormatterInterface
     private function formatTask(array $task)
     {
         if (! isset($this->columns[$task['project_id']])) {
-            $this->columns[$task['project_id']] = $this->board->getColumnsList($task['project_id']);
+            $this->columns[$task['project_id']] = $this->column->getList($task['project_id']);
         }
 
         $start = $task['date_started'] ?: time();
diff --git a/app/Helper/Task.php b/app/Helper/Task.php
index e85d6e30..6058c099 100644
--- a/app/Helper/Task.php
+++ b/app/Helper/Task.php
@@ -178,7 +178,7 @@ class Task extends Base
     public function getProgress($task)
     {
         if (! isset($this->columns[$task['project_id']])) {
-            $this->columns[$task['project_id']] = $this->board->getColumnsList($task['project_id']);
+            $this->columns[$task['project_id']] = $this->column->getList($task['project_id']);
         }
 
         return $this->task->getProgress($task, $this->columns[$task['project_id']]);
diff --git a/app/Model/ActionParameter.php b/app/Model/ActionParameter.php
index 62b03142..53edcbc8 100644
--- a/app/Model/ActionParameter.php
+++ b/app/Model/ActionParameter.php
@@ -150,8 +150,8 @@ class ActionParameter extends Base
             case 'dest_column_id':
             case 'dst_column_id':
             case 'column_id':
-                $column = $this->board->getColumn($value);
-                return empty($column) ? false : $this->board->getColumnIdByTitle($project_id, $column['title']) ?: false;
+                $column = $this->column->getById($value);
+                return empty($column) ? false : $this->column->getColumnIdByTitle($project_id, $column['title']) ?: false;
             case 'user_id':
             case 'owner_id':
                 return $this->projectPermission->isAssignable($project_id, $value) ? $value : false;
diff --git a/app/Model/Board.php b/app/Model/Board.php
index 0f980f68..f677266f 100644
--- a/app/Model/Board.php
+++ b/app/Model/Board.php
@@ -13,13 +13,6 @@ use PicoDb\Database;
 class Board extends Base
 {
     /**
-     * SQL table name
-     *
-     * @var string
-     */
-    const TABLE = 'columns';
-
-    /**
      * Get Kanboard default columns
      *
      * @access public
@@ -73,7 +66,7 @@ class Board extends Base
                 'description' => $column['description'],
             );
 
-            if (! $this->db->table(self::TABLE)->save($values)) {
+            if (! $this->db->table(Column::TABLE)->save($values)) {
                 return false;
             }
         }
@@ -91,7 +84,7 @@ class Board extends Base
      */
     public function duplicate($project_from, $project_to)
     {
-        $columns = $this->db->table(Board::TABLE)
+        $columns = $this->db->table(Column::TABLE)
                             ->columns('title', 'task_limit', 'description')
                             ->eq('project_id', $project_from)
                             ->asc('position')
@@ -101,134 +94,6 @@ class Board extends Base
     }
 
     /**
-     * Add a new column to the board
-     *
-     * @access public
-     * @param  integer   $project_id    Project id
-     * @param  string    $title         Column title
-     * @param  integer   $task_limit    Task limit
-     * @param  string    $description   Column description
-     * @return boolean|integer
-     */
-    public function addColumn($project_id, $title, $task_limit = 0, $description = '')
-    {
-        $values = array(
-            'project_id' => $project_id,
-            'title' => $title,
-            'task_limit' => intval($task_limit),
-            'position' => $this->getLastColumnPosition($project_id) + 1,
-            'description' => $description,
-        );
-
-        return $this->persist(self::TABLE, $values);
-    }
-
-    /**
-     * Update a column
-     *
-     * @access public
-     * @param  integer   $column_id     Column id
-     * @param  string    $title         Column title
-     * @param  integer   $task_limit    Task limit
-     * @param  string    $description   Optional description
-     * @return boolean
-     */
-    public function updateColumn($column_id, $title, $task_limit = 0, $description = '')
-    {
-        return $this->db->table(self::TABLE)->eq('id', $column_id)->update(array(
-            'title' => $title,
-            'task_limit' => intval($task_limit),
-            'description' => $description,
-        ));
-    }
-
-    /**
-     * Get columns with consecutive positions
-     *
-     * If you remove a column, the positions are not anymore consecutives
-     *
-     * @access public
-     * @param  integer  $project_id
-     * @return array
-     */
-    public function getNormalizedColumnPositions($project_id)
-    {
-        $columns = $this->db->hashtable(self::TABLE)->eq('project_id', $project_id)->asc('position')->getAll('id', 'position');
-        $position = 1;
-
-        foreach ($columns as $column_id => $column_position) {
-            $columns[$column_id] = $position++;
-        }
-
-        return $columns;
-    }
-
-    /**
-     * Save the new positions for a set of columns
-     *
-     * @access public
-     * @param  array   $columns    Hashmap of column_id/column_position
-     * @return boolean
-     */
-    public function saveColumnPositions(array $columns)
-    {
-        return $this->db->transaction(function (Database $db) use ($columns) {
-
-            foreach ($columns as $column_id => $position) {
-                if (! $db->table(Board::TABLE)->eq('id', $column_id)->update(array('position' => $position))) {
-                    return false;
-                }
-            }
-        });
-    }
-
-    /**
-     * Move a column down, increment the column position value
-     *
-     * @access public
-     * @param  integer  $project_id   Project id
-     * @param  integer  $column_id    Column id
-     * @return boolean
-     */
-    public function moveDown($project_id, $column_id)
-    {
-        $columns = $this->getNormalizedColumnPositions($project_id);
-        $positions = array_flip($columns);
-
-        if (isset($columns[$column_id]) && $columns[$column_id] < count($columns)) {
-            $position = ++$columns[$column_id];
-            $columns[$positions[$position]]--;
-
-            return $this->saveColumnPositions($columns);
-        }
-
-        return false;
-    }
-
-    /**
-     * Move a column up, decrement the column position value
-     *
-     * @access public
-     * @param  integer  $project_id   Project id
-     * @param  integer  $column_id    Column id
-     * @return boolean
-     */
-    public function moveUp($project_id, $column_id)
-    {
-        $columns = $this->getNormalizedColumnPositions($project_id);
-        $positions = array_flip($columns);
-
-        if (isset($columns[$column_id]) && $columns[$column_id] > 1) {
-            $position = --$columns[$column_id];
-            $columns[$positions[$position]]++;
-
-            return $this->saveColumnPositions($columns);
-        }
-
-        return false;
-    }
-
-    /**
      * Get all tasks sorted by columns and swimlanes
      *
      * @access public
@@ -239,7 +104,7 @@ class Board extends Base
     public function getBoard($project_id, $callback = null)
     {
         $swimlanes = $this->swimlane->getSwimlanes($project_id);
-        $columns = $this->getColumns($project_id);
+        $columns = $this->column->getAll($project_id);
         $nb_columns = count($columns);
 
         for ($i = 0, $ilen = count($swimlanes); $i < $ilen; $i++) {
@@ -307,131 +172,4 @@ class Board extends Base
 
         return $prepend ? array(-1 => t('All columns')) + $listing : $listing;
     }
-
-    /**
-     * Get the first column id for a given project
-     *
-     * @access public
-     * @param  integer  $project_id   Project id
-     * @return integer
-     */
-    public function getFirstColumn($project_id)
-    {
-        return $this->db->table(self::TABLE)->eq('project_id', $project_id)->asc('position')->findOneColumn('id');
-    }
-
-    /**
-     * Get the last column id for a given project
-     *
-     * @access public
-     * @param  integer  $project_id   Project id
-     * @return integer
-     */
-    public function getLastColumn($project_id)
-    {
-        return $this->db->table(self::TABLE)->eq('project_id', $project_id)->desc('position')->findOneColumn('id');
-    }
-
-    /**
-     * Get the list of columns sorted by position [ column_id => title ]
-     *
-     * @access public
-     * @param  integer  $project_id   Project id
-     * @param  boolean  $prepend      Prepend a default value
-     * @return array
-     */
-    public function getColumnsList($project_id, $prepend = false)
-    {
-        $listing = $this->db->hashtable(self::TABLE)->eq('project_id', $project_id)->asc('position')->getAll('id', 'title');
-        return $prepend ? array(-1 => t('All columns')) + $listing : $listing;
-    }
-
-    /**
-     * Get all columns sorted by position for a given project
-     *
-     * @access public
-     * @param  integer  $project_id   Project id
-     * @return array
-     */
-    public function getColumns($project_id)
-    {
-        return $this->db->table(self::TABLE)->eq('project_id', $project_id)->asc('position')->findAll();
-    }
-
-    /**
-     * Get the number of columns for a given project
-     *
-     * @access public
-     * @param  integer  $project_id   Project id
-     * @return integer
-     */
-    public function countColumns($project_id)
-    {
-        return $this->db->table(self::TABLE)->eq('project_id', $project_id)->count();
-    }
-
-    /**
-     * Get a column by the id
-     *
-     * @access public
-     * @param  integer  $column_id    Column id
-     * @return array
-     */
-    public function getColumn($column_id)
-    {
-        return $this->db->table(self::TABLE)->eq('id', $column_id)->findOne();
-    }
-
-    /**
-     * Get a column id by the name
-     *
-     * @access public
-     * @param  integer  $project_id
-     * @param  string   $title
-     * @return integer
-     */
-    public function getColumnIdByTitle($project_id, $title)
-    {
-        return (int) $this->db->table(self::TABLE)->eq('project_id', $project_id)->eq('title', $title)->findOneColumn('id');
-    }
-
-    /**
-     * Get a column title by the id
-     *
-     * @access public
-     * @param  integer  $column_id
-     * @return integer
-     */
-    public function getColumnTitleById($column_id)
-    {
-        return $this->db->table(self::TABLE)->eq('id', $column_id)->findOneColumn('title');
-    }
-
-    /**
-     * Get the position of the last column for a given project
-     *
-     * @access public
-     * @param  integer  $project_id   Project id
-     * @return integer
-     */
-    public function getLastColumnPosition($project_id)
-    {
-        return (int) $this->db
-                        ->table(self::TABLE)
-                        ->eq('project_id', $project_id)
-                        ->desc('position')
-                        ->findOneColumn('position');
-    }
-
-    /**
-     * Remove a column and all tasks associated to this column
-     *
-     * @access public
-     * @param  integer  $column_id    Column id
-     * @return boolean
-     */
-    public function removeColumn($column_id)
-    {
-        return $this->db->table(self::TABLE)->eq('id', $column_id)->remove();
-    }
 }
diff --git a/app/Model/Column.php b/app/Model/Column.php
index 286b6140..ccdcb049 100644
--- a/app/Model/Column.php
+++ b/app/Model/Column.php
@@ -18,6 +18,83 @@ class Column extends Base
     const TABLE = 'columns';
 
     /**
+     * Get a column by the id
+     *
+     * @access public
+     * @param  integer  $column_id    Column id
+     * @return array
+     */
+    public function getById($column_id)
+    {
+        return $this->db->table(self::TABLE)->eq('id', $column_id)->findOne();
+    }
+
+    /**
+     * Get the first column id for a given project
+     *
+     * @access public
+     * @param  integer  $project_id   Project id
+     * @return integer
+     */
+    public function getFirstColumnId($project_id)
+    {
+        return $this->db->table(self::TABLE)->eq('project_id', $project_id)->asc('position')->findOneColumn('id');
+    }
+
+    /**
+     * Get the last column id for a given project
+     *
+     * @access public
+     * @param  integer  $project_id   Project id
+     * @return integer
+     */
+    public function getLastColumnId($project_id)
+    {
+        return $this->db->table(self::TABLE)->eq('project_id', $project_id)->desc('position')->findOneColumn('id');
+    }
+
+    /**
+     * Get the position of the last column for a given project
+     *
+     * @access public
+     * @param  integer  $project_id   Project id
+     * @return integer
+     */
+    public function getLastColumnPosition($project_id)
+    {
+        return (int) $this->db
+                        ->table(self::TABLE)
+                        ->eq('project_id', $project_id)
+                        ->desc('position')
+                        ->findOneColumn('position');
+    }
+
+    /**
+     * Get a column id by the name
+     *
+     * @access public
+     * @param  integer  $project_id
+     * @param  string   $title
+     * @return integer
+     */
+    public function getColumnIdByTitle($project_id, $title)
+    {
+        return (int) $this->db->table(self::TABLE)->eq('project_id', $project_id)->eq('title', $title)->findOneColumn('id');
+    }
+
+    /**
+     * Get a column title by the id
+     *
+     * @access public
+     * @param  integer  $column_id
+     * @return integer
+     */
+    public function getColumnTitleById($column_id)
+    {
+        return $this->db->table(self::TABLE)->eq('id', $column_id)->findOneColumn('title');
+    }
+
+    /**
      * Get all columns sorted by position for a given project
      *
      * @access public
@@ -30,6 +107,74 @@ class Column extends Base
     }
 
     /**
+     * Get the list of columns sorted by position [ column_id => title ]
+     *
+     * @access public
+     * @param  integer  $project_id   Project id
+     * @param  boolean  $prepend      Prepend a default value
+     * @return array
+     */
+    public function getList($project_id, $prepend = false)
+    {
+        $listing = $this->db->hashtable(self::TABLE)->eq('project_id', $project_id)->asc('position')->getAll('id', 'title');
+        return $prepend ? array(-1 => t('All columns')) + $listing : $listing;
+    }
+
+    /**
+     * Add a new column to the board
+     *
+     * @access public
+     * @param  integer   $project_id    Project id
+     * @param  string    $title         Column title
+     * @param  integer   $task_limit    Task limit
+     * @param  string    $description   Column description
+     * @return boolean|integer
+     */
+    public function create($project_id, $title, $task_limit = 0, $description = '')
+    {
+        $values = array(
+            'project_id' => $project_id,
+            'title' => $title,
+            'task_limit' => intval($task_limit),
+            'position' => $this->getLastColumnPosition($project_id) + 1,
+            'description' => $description,
+        );
+
+        return $this->persist(self::TABLE, $values);
+    }
+
+    /**
+     * Update a column
+     *
+     * @access public
+     * @param  integer   $column_id     Column id
+     * @param  string    $title         Column title
+     * @param  integer   $task_limit    Task limit
+     * @param  string    $description   Optional description
+     * @return boolean
+     */
+    public function update($column_id, $title, $task_limit = 0, $description = '')
+    {
+        return $this->db->table(self::TABLE)->eq('id', $column_id)->update(array(
+            'title' => $title,
+            'task_limit' => intval($task_limit),
+            'description' => $description,
+        ));
+    }
+
+    /**
+     * Remove a column and all tasks associated to this column
+     *
+     * @access public
+     * @param  integer  $column_id    Column id
+     * @return boolean
+     */
+    public function remove($column_id)
+    {
+        return $this->db->table(self::TABLE)->eq('id', $column_id)->remove();
+    }
+
+    /**
      * Change column position
      *
      * @access public
diff --git a/app/Model/Project.php b/app/Model/Project.php
index d0a8bfc8..a79e46a1 100644
--- a/app/Model/Project.php
+++ b/app/Model/Project.php
@@ -241,7 +241,7 @@ class Project extends Base
     {
         $stats = array();
         $stats['nb_active_tasks'] = 0;
-        $columns = $this->board->getColumns($project_id);
+        $columns = $this->column->getAll($project_id);
         $column_stats = $this->board->getColumnStats($project_id);
 
         foreach ($columns as &$column) {
@@ -265,7 +265,7 @@ class Project extends Base
      */
     public function getColumnStats(array &$project)
     {
-        $project['columns'] = $this->board->getColumns($project['id']);
+        $project['columns'] = $this->column->getAll($project['id']);
         $stats = $this->board->getColumnStats($project['id']);
 
         foreach ($project['columns'] as &$column) {
diff --git a/app/Model/ProjectDailyColumnStats.php b/app/Model/ProjectDailyColumnStats.php
index cf79be84..2bcc4d55 100644
--- a/app/Model/ProjectDailyColumnStats.php
+++ b/app/Model/ProjectDailyColumnStats.php
@@ -84,7 +84,7 @@ class ProjectDailyColumnStats extends Base
      */
     public function getAggregatedMetrics($project_id, $from, $to, $field = 'total')
     {
-        $columns = $this->board->getColumnsList($project_id);
+        $columns = $this->column->getList($project_id);
         $metrics = $this->getMetrics($project_id, $from, $to);
         return $this->buildAggregate($metrics, $columns, $field);
     }
diff --git a/app/Model/TaskAnalytic.php b/app/Model/TaskAnalytic.php
index bdfec3cb..cff56744 100644
--- a/app/Model/TaskAnalytic.php
+++ b/app/Model/TaskAnalytic.php
@@ -48,7 +48,7 @@ class TaskAnalytic extends Base
     public function getTimeSpentByColumn(array $task)
     {
         $result = array();
-        $columns = $this->board->getColumnsList($task['project_id']);
+        $columns = $this->column->getList($task['project_id']);
         $sums = $this->transition->getTimeSpentByTask($task['id']);
 
         foreach ($columns as $column_id => $column_title) {
diff --git a/app/Model/TaskCreation.php b/app/Model/TaskCreation.php
index f7d981fa..576eb18c 100644
--- a/app/Model/TaskCreation.php
+++ b/app/Model/TaskCreation.php
@@ -56,7 +56,7 @@ class TaskCreation extends Base
         $this->resetFields($values, array('date_started', 'creator_id', 'owner_id', 'swimlane_id', 'date_due', 'score', 'category_id', 'time_estimated'));
 
         if (empty($values['column_id'])) {
-            $values['column_id'] = $this->board->getFirstColumn($values['project_id']);
+            $values['column_id'] = $this->column->getFirstColumnId($values['project_id']);
         }
 
         if (empty($values['color_id'])) {
diff --git a/app/Model/TaskDuplication.php b/app/Model/TaskDuplication.php
index e81fb232..b081aac1 100644
--- a/app/Model/TaskDuplication.php
+++ b/app/Model/TaskDuplication.php
@@ -64,7 +64,7 @@ class TaskDuplication extends Base
 
         if ($values['recurrence_status'] == Task::RECURRING_STATUS_PENDING) {
             $values['recurrence_parent'] = $task_id;
-            $values['column_id'] = $this->board->getFirstColumn($values['project_id']);
+            $values['column_id'] = $this->column->getFirstColumnId($values['project_id']);
             $this->calculateRecurringTaskDueDate($values);
 
             $recurring_task_id = $this->save($task_id, $values);
@@ -181,12 +181,12 @@ class TaskDuplication extends Base
 
         // Check if the column exists for the destination project
         if ($values['column_id'] > 0) {
-            $values['column_id'] = $this->board->getColumnIdByTitle(
+            $values['column_id'] = $this->column->getColumnIdByTitle(
                 $values['project_id'],
-                $this->board->getColumnTitleById($values['column_id'])
+                $this->column->getColumnTitleById($values['column_id'])
             );
 
-            $values['column_id'] = $values['column_id'] ?: $this->board->getFirstColumn($values['project_id']);
+            $values['column_id'] = $values['column_id'] ?: $this->column->getFirstColumnId($values['project_id']);
         }
 
         return $values;
diff --git a/app/Model/TaskFilter.php b/app/Model/TaskFilter.php
index 7ceb4a97..1883298d 100644
--- a/app/Model/TaskFilter.php
+++ b/app/Model/TaskFilter.php
@@ -469,7 +469,7 @@ class TaskFilter extends Base
         $this->query->beginOr();
 
         foreach ($values as $project) {
-            $this->query->ilike(Board::TABLE.'.title', $project);
+            $this->query->ilike(Column::TABLE.'.title', $project);
         }
 
         $this->query->closeOr();
diff --git a/app/Model/TaskFinder.php b/app/Model/TaskFinder.php
index 95ddc12f..0492a9bf 100644
--- a/app/Model/TaskFinder.php
+++ b/app/Model/TaskFinder.php
@@ -38,14 +38,14 @@ class TaskFinder extends Base
                         Task::TABLE.'.time_spent',
                         Task::TABLE.'.time_estimated',
                         Project::TABLE.'.name AS project_name',
-                        Board::TABLE.'.title AS column_name',
+                        Column::TABLE.'.title AS column_name',
                         User::TABLE.'.username AS assignee_username',
                         User::TABLE.'.name AS assignee_name'
                     )
                     ->eq(Task::TABLE.'.is_active', $is_active)
                     ->in(Project::TABLE.'.id', $project_ids)
                     ->join(Project::TABLE, 'id', 'project_id')
-                    ->join(Board::TABLE, 'id', 'column_id', Task::TABLE)
+                    ->join(Column::TABLE, 'id', 'column_id', Task::TABLE)
                     ->join(User::TABLE, 'id', 'owner_id', Task::TABLE);
     }
 
@@ -129,15 +129,15 @@ class TaskFinder extends Base
                 User::TABLE.'.name AS assignee_name',
                 Category::TABLE.'.name AS category_name',
                 Category::TABLE.'.description AS category_description',
-                Board::TABLE.'.title AS column_name',
-                Board::TABLE.'.position AS column_position',
+                Column::TABLE.'.title AS column_name',
+                Column::TABLE.'.position AS column_position',
                 Swimlane::TABLE.'.name AS swimlane_name',
                 Project::TABLE.'.default_swimlane',
                 Project::TABLE.'.name AS project_name'
             )
             ->join(User::TABLE, 'id', 'owner_id', Task::TABLE)
             ->join(Category::TABLE, 'id', 'category_id', Task::TABLE)
-            ->join(Board::TABLE, 'id', 'column_id', Task::TABLE)
+            ->join(Column::TABLE, 'id', 'column_id', Task::TABLE)
             ->join(Swimlane::TABLE, 'id', 'swimlane_id', Task::TABLE)
             ->join(Project::TABLE, 'id', 'project_id', Task::TABLE);
     }
diff --git a/app/Model/TaskImport.php b/app/Model/TaskImport.php
index e8dd1946..ccab0152 100644
--- a/app/Model/TaskImport.php
+++ b/app/Model/TaskImport.php
@@ -111,7 +111,7 @@ class TaskImport extends Base
         }
 
         if (! empty($row['column'])) {
-            $values['column_id'] = $this->board->getColumnIdByTitle($this->projectId, $row['column']);
+            $values['column_id'] = $this->column->getColumnIdByTitle($this->projectId, $row['column']);
         }
 
         if (! empty($row['category'])) {
diff --git a/app/Model/TaskLink.php b/app/Model/TaskLink.php
index 034fcf45..a57bf3b0 100644
--- a/app/Model/TaskLink.php
+++ b/app/Model/TaskLink.php
@@ -81,17 +81,17 @@ class TaskLink extends Base
                         Task::TABLE.'.owner_id AS task_assignee_id',
                         User::TABLE.'.username AS task_assignee_username',
                         User::TABLE.'.name AS task_assignee_name',
-                        Board::TABLE.'.title AS column_title',
+                        Column::TABLE.'.title AS column_title',
                         Project::TABLE.'.name AS project_name'
                     )
                     ->eq(self::TABLE.'.task_id', $task_id)
                     ->join(Link::TABLE, 'id', 'link_id')
                     ->join(Task::TABLE, 'id', 'opposite_task_id')
-                    ->join(Board::TABLE, 'id', 'column_id', Task::TABLE)
+                    ->join(Column::TABLE, 'id', 'column_id', Task::TABLE)
                     ->join(User::TABLE, 'id', 'owner_id', Task::TABLE)
                     ->join(Project::TABLE, 'id', 'project_id', Task::TABLE)
                     ->asc(Link::TABLE.'.id')
-                    ->desc(Board::TABLE.'.position')
+                    ->desc(Column::TABLE.'.position')
                     ->desc(Task::TABLE.'.is_active')
                     ->asc(Task::TABLE.'.position')
                     ->asc(Task::TABLE.'.id')
diff --git a/app/Model/Transition.php b/app/Model/Transition.php
index b1f8f678..aa76d58f 100644
--- a/app/Model/Transition.php
+++ b/app/Model/Transition.php
@@ -76,8 +76,8 @@ class Transition extends Base
                         ->eq('task_id', $task_id)
                         ->desc('date')
                         ->join(User::TABLE, 'id', 'user_id')
-                        ->join(Board::TABLE.' as src', 'id', 'src_column_id', self::TABLE, 'src')
-                        ->join(Board::TABLE.' as dst', 'id', 'dst_column_id', self::TABLE, 'dst')
+                        ->join(Column::TABLE.' as src', 'id', 'src_column_id', self::TABLE, 'src')
+                        ->join(Column::TABLE.' as dst', 'id', 'dst_column_id', self::TABLE, 'dst')
                         ->findAll();
     }
 
@@ -118,8 +118,8 @@ class Transition extends Base
                         ->desc('date')
                         ->join(Task::TABLE, 'id', 'task_id')
                         ->join(User::TABLE, 'id', 'user_id')
-                        ->join(Board::TABLE.' as src', 'id', 'src_column_id', self::TABLE, 'src')
-                        ->join(Board::TABLE.' as dst', 'id', 'dst_column_id', self::TABLE, 'dst')
+                        ->join(Column::TABLE.' as src', 'id', 'src_column_id', self::TABLE, 'src')
+                        ->join(Column::TABLE.' as dst', 'id', 'dst_column_id', self::TABLE, 'dst')
                         ->findAll();
     }
 
diff --git a/app/Subscriber/RecurringTaskSubscriber.php b/app/Subscriber/RecurringTaskSubscriber.php
index 6d5aee89..09a5665a 100644
--- a/app/Subscriber/RecurringTaskSubscriber.php
+++ b/app/Subscriber/RecurringTaskSubscriber.php
@@ -21,9 +21,9 @@ class RecurringTaskSubscriber extends BaseSubscriber implements EventSubscriberI
         $this->logger->debug('Subscriber executed: '.__METHOD__);
 
         if ($event['recurrence_status'] == Task::RECURRING_STATUS_PENDING) {
-            if ($event['recurrence_trigger'] == Task::RECURRING_TRIGGER_FIRST_COLUMN && $this->board->getFirstColumn($event['project_id']) == $event['src_column_id']) {
+            if ($event['recurrence_trigger'] == Task::RECURRING_TRIGGER_FIRST_COLUMN && $this->column->getFirstColumnId($event['project_id']) == $event['src_column_id']) {
                 $this->taskDuplication->duplicateRecurringTask($event['task_id']);
-            } elseif ($event['recurrence_trigger'] == Task::RECURRING_TRIGGER_LAST_COLUMN && $this->board->getLastColumn($event['project_id']) == $event['dst_column_id']) {
+            } elseif ($event['recurrence_trigger'] == Task::RECURRING_TRIGGER_LAST_COLUMN && $this->column->getLastColumnId($event['project_id']) == $event['dst_column_id']) {
                 $this->taskDuplication->duplicateRecurringTask($event['task_id']);
             }
         }