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<?php
namespace Kanboard\Model;
/**
* Project analytic model
*
* @package model
* @author Frederic Guillot
*/
class ProjectAnalytic extends Base
{
/**
* Get the average lead and cycle time
*
* @access public
* @param integer $project_id
* @return array
*/
public function getAverageLeadAndCycleTime($project_id)
{
$stats = array(
'count' => 0,
'total_lead_time' => 0,
'total_cycle_time' => 0,
'avg_lead_time' => 0,
'avg_cycle_time' => 0,
);
$tasks = $this->db
->table(Task::TABLE)
->columns('date_completed', 'date_creation', 'date_started')
->eq('project_id', $project_id)
->desc('id')
->limit(1000)
->findAll();
foreach ($tasks as &$task) {
$stats['count']++;
$stats['total_lead_time'] += ($task['date_completed'] ?: time()) - $task['date_creation'];
$stats['total_cycle_time'] += empty($task['date_started']) ? 0 : ($task['date_completed'] ?: time()) - $task['date_started'];
}
$stats['avg_lead_time'] = $stats['count'] > 0 ? (int) ($stats['total_lead_time'] / $stats['count']) : 0;
$stats['avg_cycle_time'] = $stats['count'] > 0 ? (int) ($stats['total_cycle_time'] / $stats['count']) : 0;
return $stats;
}
/**
* Get the average time spent into each column
*
* @access public
* @param integer $project_id
* @return array
*/
public function getAverageTimeSpentByColumn($project_id)
{
$stats = array();
$columns = $this->board->getColumnsList($project_id);
// Get the time spent of the last move for each tasks
$tasks = $this->db
->table(Task::TABLE)
->columns('id', 'date_completed', 'date_moved', 'column_id')
->eq('project_id', $project_id)
->desc('id')
->limit(1000)
->findAll();
// Init values
foreach ($columns as $column_id => $column_title) {
$stats[$column_id] = array(
'count' => 0,
'time_spent' => 0,
'average' => 0,
'title' => $column_title,
);
}
// Get time spent foreach task/column and take into account the last move
foreach ($tasks as &$task) {
$sums = $this->transition->getTimeSpentByTask($task['id']);
if (! isset($sums[$task['column_id']])) {
$sums[$task['column_id']] = 0;
}
$sums[$task['column_id']] += ($task['date_completed'] ?: time()) - $task['date_moved'];
foreach ($sums as $column_id => $time_spent) {
if (isset($stats[$column_id])) {
$stats[$column_id]['count']++;
$stats[$column_id]['time_spent'] += $time_spent;
}
}
}
// Calculate average for each column
foreach ($columns as $column_id => $column_title) {
$stats[$column_id]['average'] = $stats[$column_id]['count'] > 0 ? (int) ($stats[$column_id]['time_spent'] / $stats[$column_id]['count']) : 0;
}
return $stats;
}
}
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