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<?php
namespace Kanboard\Model;
/**
* Project Daily Column Stats
*
* @package model
* @author Frederic Guillot
*/
class ProjectDailyColumnStats extends Base
{
/**
* SQL table name
*
* @var string
*/
const TABLE = 'project_daily_column_stats';
/**
* Update daily totals for the project and for each column
*
* "total" is the number open of tasks in the column
* "score" is the sum of tasks score in the column
*
* @access public
* @param integer $project_id Project id
* @param string $date Record date (YYYY-MM-DD)
* @return boolean
*/
public function updateTotals($project_id, $date)
{
$this->db->startTransaction();
$this->db->table(self::TABLE)->eq('project_id', $project_id)->eq('day', $date)->remove();
foreach ($this->getStatsByColumns($project_id) as $column_id => $column) {
$this->db->table(self::TABLE)->insert(array(
'day' => $date,
'project_id' => $project_id,
'column_id' => $column_id,
'total' => $column['total'],
'score' => $column['score'],
));
}
$this->db->closeTransaction();
return true;
}
/**
* Count the number of recorded days for the data range
*
* @access public
* @param integer $project_id Project id
* @param string $from Start date (ISO format YYYY-MM-DD)
* @param string $to End date
* @return integer
*/
public function countDays($project_id, $from, $to)
{
return $this->db->table(self::TABLE)
->eq('project_id', $project_id)
->gte('day', $from)
->lte('day', $to)
->findOneColumn('COUNT(DISTINCT day)');
}
/**
* Get aggregated metrics for the project within a data range
*
* [
* ['Date', 'Column1', 'Column2'],
* ['2014-11-16', 2, 5],
* ['2014-11-17', 20, 15],
* ]
*
* @access public
* @param integer $project_id Project id
* @param string $from Start date (ISO format YYYY-MM-DD)
* @param string $to End date
* @param string $field Column to aggregate
* @return array
*/
public function getAggregatedMetrics($project_id, $from, $to, $field = 'total')
{
$columns = $this->column->getList($project_id);
$metrics = $this->getMetrics($project_id, $from, $to);
return $this->buildAggregate($metrics, $columns, $field);
}
/**
* Fetch metrics
*
* @access public
* @param integer $project_id Project id
* @param string $from Start date (ISO format YYYY-MM-DD)
* @param string $to End date
* @return array
*/
public function getMetrics($project_id, $from, $to)
{
return $this->db->table(self::TABLE)
->eq('project_id', $project_id)
->gte('day', $from)
->lte('day', $to)
->asc(self::TABLE.'.day')
->findAll();
}
/**
* Build aggregate
*
* @access private
* @param array $metrics
* @param array $columns
* @param string $field
* @return array
*/
private function buildAggregate(array &$metrics, array &$columns, $field)
{
$column_ids = array_keys($columns);
$days = array_unique(array_column($metrics, 'day'));
$rows = array(array_merge(array(e('Date')), array_values($columns)));
foreach ($days as $day) {
$rows[] = $this->buildRowAggregate($metrics, $column_ids, $day, $field);
}
return $rows;
}
/**
* Build one row of the aggregate
*
* @access private
* @param array $metrics
* @param array $column_ids
* @param string $day
* @param string $field
* @return array
*/
private function buildRowAggregate(array &$metrics, array &$column_ids, $day, $field)
{
$row = array($day);
foreach ($column_ids as $column_id) {
$row[] = $this->findValueInMetrics($metrics, $day, $column_id, $field);
}
return $row;
}
/**
* Find the value in the metrics
*
* @access private
* @param array $metrics
* @param string $day
* @param string $column_id
* @param string $field
* @return integer
*/
private function findValueInMetrics(array &$metrics, $day, $column_id, $field)
{
foreach ($metrics as $metric) {
if ($metric['day'] === $day && $metric['column_id'] == $column_id) {
return (int) $metric[$field];
}
}
return 0;
}
/**
* Get number of tasks and score by columns
*
* @access private
* @param integer $project_id
* @return array
*/
private function getStatsByColumns($project_id)
{
$totals = $this->getTotalByColumns($project_id);
$scores = $this->getScoreByColumns($project_id);
$columns = array();
foreach ($totals as $column_id => $total) {
$columns[$column_id] = array('total' => $total, 'score' => 0);
}
foreach ($scores as $column_id => $score) {
$columns[$column_id]['score'] = (int) $score;
}
return $columns;
}
/**
* Get number of tasks and score by columns
*
* @access private
* @param integer $project_id
* @return array
*/
private function getScoreByColumns($project_id)
{
$stats = $this->db->table(Task::TABLE)
->columns('column_id', 'SUM(score) AS score')
->eq('project_id', $project_id)
->eq('is_active', Task::STATUS_OPEN)
->notNull('score')
->groupBy('column_id')
->findAll();
return array_column($stats, 'score', 'column_id');
}
/**
* Get number of tasks and score by columns
*
* @access private
* @param integer $project_id
* @return array
*/
private function getTotalByColumns($project_id)
{
$stats = $this->db->table(Task::TABLE)
->columns('column_id', 'COUNT(*) AS total')
->eq('project_id', $project_id)
->in('is_active', $this->getTaskStatusConfig())
->groupBy('column_id')
->findAll();
return array_column($stats, 'total', 'column_id');
}
/**
* Get task status to use for total calculation
*
* @access private
* @return array
*/
private function getTaskStatusConfig()
{
if ($this->config->get('cfd_include_closed_tasks') == 1) {
return array(Task::STATUS_OPEN, Task::STATUS_CLOSED);
}
return array(Task::STATUS_OPEN);
}
}
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