Add task transitions history

app/Model/Transition.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace Model;
+
+/**
+ * Transition model
+ *
+ * @package  model
+ * @author   Frederic Guillot
+ */
+class Transition extends Base
+{
+    /**
+     * SQL table name
+     *
+     * @var string
+     */
+    const TABLE = 'transitions';
+
+    /**
+     * Save transition event
+     *
+     * @access public
+     * @param  integer  $user_id
+     * @param  array    $task
+     * @return boolean
+     */
+    public function save($user_id, array $task)
+    {
+        return $this->db->table(self::TABLE)->insert(array(
+            'user_id' => $user_id,
+            'project_id' => $task['project_id'],
+            'task_id' => $task['task_id'],
+            'src_column_id' => $task['src_column_id'],
+            'dst_column_id' => $task['dst_column_id'],
+            'date' => time(),
+            'time_spent' => time() - $task['date_moved']
+        ));
+    }
+
+    /**
+     * Get all transitions by task
+     *
+     * @access public
+     * @param  integer   $task_id
+     * @return array
+     */
+    public function getAllByTask($task_id)
+    {
+        return $this->db->table(self::TABLE)
+                        ->columns(
+                            'src.title as src_column',
+                            'dst.title as dst_column',
+                            User::TABLE.'.name',
+                            User::TABLE.'.username',
+                            self::TABLE.'.user_id',
+                            self::TABLE.'.date',
+                            self::TABLE.'.time_spent'
+                        )
+                        ->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')
+                        ->findAll();
+    }
+}