Use BoardFormatter to generate the board

app/Formatter/BoardTaskFormatter.php

@@ -0,0 +1,80 @@
+<?php
+
+namespace Kanboard\Formatter;
+
+use Kanboard\Core\Filter\FormatterInterface;
+
+/**
+ * Board Task Formatter
+ *
+ * @package formatter
+ * @author  Frederic Guillot
+ */
+class BoardTaskFormatter extends BaseFormatter implements FormatterInterface
+{
+    protected $tasks = array();
+    protected $columnId = 0;
+    protected $swimlaneId = 0;
+
+    /**
+     * Set tasks
+     *
+     * @access public
+     * @param  array $tasks
+     * @return $this
+     */
+    public function withTasks(array $tasks)
+    {
+        $this->tasks = $tasks;
+        return $this;
+    }
+
+    /**
+     * Set columnId
+     *
+     * @access public
+     * @param  integer $columnId
+     * @return $this
+     */
+    public function withColumnId($columnId)
+    {
+        $this->columnId = $columnId;
+        return $this;
+    }
+
+    /**
+     * Set swimlaneId
+     *
+     * @access public
+     * @param  integer $swimlaneId
+     * @return $this
+     */
+    public function withSwimlaneId($swimlaneId)
+    {
+        $this->swimlaneId = $swimlaneId;
+        return $this;
+    }
+
+    /**
+     * Apply formatter
+     *
+     * @access public
+     * @return array
+     */
+    public function format()
+    {
+        return array_values(array_filter($this->tasks, array($this, 'filterTasks')));
+    }
+
+    /**
+     * Keep only tasks of the given column and swimlane
+     *
+     * @access public
+     * @param  array $task
+     * @return bool
+     */
+    public function filterTasks(array $task)
+    {
+        return $task['column_id'] == $this->columnId && $task['swimlane_id'] == $this->swimlaneId;
+    }
+}