Display the sum of task complexity in the column

app/Model/Board.php

@@ -225,6 +225,7 @@ class Board extends Base
             for ($j = 0; $j < $nb_columns; $j++) {
                 $swimlanes[$i]['columns'][$j]['tasks'] = $this->taskFinder->getTasksByColumnAndSwimlane($project_id, $columns[$j]['id'], $swimlanes[$i]['id']);
                 $swimlanes[$i]['columns'][$j]['nb_tasks'] = count($swimlanes[$i]['columns'][$j]['tasks']);
+                $swimlanes[$i]['columns'][$j]['score'] = $this->getColumnSum($swimlanes[$i]['columns'][$j]['tasks'], 'score');
                 $swimlanes[$i]['nb_tasks'] += $swimlanes[$i]['columns'][$j]['nb_tasks'];
             }
         }
@@ -232,6 +233,25 @@ class Board extends Base
         return $swimlanes;
     }
 
+    /**
+     * Calculate the sum of the defined field for a list of tasks
+     *
+     * @access public
+     * @param  array   $tasks
+     * @param  string  $field
+     * @return integer
+     */
+    public function getColumnSum(array &$tasks, $field)
+    {
+        $sum = 0;
+
+        foreach ($tasks as $task) {
+            $sum += $task['score'];
+        }
+
+        return $sum;
+    }
+
     /**
      * Get the total of tasks per column
      *

app/Template/board/swimlane.php

@@ -33,6 +33,12 @@
             </span>
         <?php endif ?>
 
+        <?php if (! empty($column['score'])): ?>
+            <span class="column-score pull-right" title="<?= t('Score') ?>">
+                <?= $column['score'] ?>&nbsp;
+            </span>
+        <?php endif ?>
+
         <?php if ($column['task_limit']): ?>
             <span title="<?= t('Task limit') ?>" class="task-limit">
                 (<span id="task-number-column-<?= $column['id'] ?>"><?= $column['nb_tasks'] ?></span>/<?= $this->e($column['task_limit']) ?>)