<?php␊ |
/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */␊ |
/*␊ |
# ***** BEGIN LICENSE BLOCK *****␊ |
# This file is part of InDefero, an open source project management application.␊ |
# Copyright (C) 2008-2011 Céondo Ltd and contributors.␊ |
#␊ |
# InDefero is free software; you can redistribute it and/or modify␊ |
# it under the terms of the GNU General Public License as published by␊ |
# the Free Software Foundation; either version 2 of the License, or␊ |
# (at your option) any later version.␊ |
#␊ |
# InDefero is distributed in the hope that it will be useful,␊ |
# but WITHOUT ANY WARRANTY; without even the implied warranty of␊ |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the␊ |
# GNU General Public License for more details.␊ |
#␊ |
# You should have received a copy of the GNU General Public License␊ |
# along with this program; if not, write to the Free Software␊ |
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA␊ |
#␊ |
# ***** END LICENSE BLOCK ***** */␊ |
␊ |
/**␊ |
* Class that calculates the activity value for all projects on a␊ |
* specific date and time.␊ |
*␊ |
* We do this by counting adds or updates of database objects in␊ |
* the particular section (according to the timeline) and relate this␊ |
* value to the overall activity of a section in the forge.␊ |
*␊ |
* To illustrate the behaviour, a simple example could be a forge with␊ |
* only two projects that both have only issue tracking enabled.␊ |
* The first project created or updated 10 tickets during the past period,␊ |
* the other 20. The activity index for the first should therefor be␊ |
* calculated as 0.33 and the second as 0.66.␊ |
* Note that this simple example doesn't take activity in other␊ |
* sections into account, so the the total activity of all projects␊ |
* for a certain time period might add up to more than 1.0.␊ |
*␊ |
* @author tommyd␊ |
*/␊ |
class IDF_ActivityTaxonomy␊ |
{␊ |
public static function recalculateTaxnomies(DateTime $date)␊ |
{␊ |
//␊ |
// query and normalize the section weights␊ |
//␊ |
$sectionWeights = Pluf::f('activity_section_weights', array());␊ |
$allWeights = array_sum($sectionWeights);␊ |
if ($allWeights == 0) {␊ |
throw new LogicException('the sum of all "activity_section_weights" must not be 0');␊ |
}␊ |
foreach ($sectionWeights as $section => $weight) {␊ |
$sectionWeights[$section] = $weight / (float) $allWeights;␊ |
}␊ |
␊ |
//␊ |
// determine the date boundaries␊ |
//␊ |
$lookback = Pluf::f('activity_lookback', 0);␊ |
if ($lookback < 1) {␊ |
throw new LogicException('lookback must be greater or equal to 1');␊ |
}␊ |
$dateCopy = new DateTime();␊ |
$dateCopy->setTimestamp($date->getTimestamp());␊ |
$dateBoundaries = array(␊ |
$dateCopy->format('Y-m-d 23:59:59'),␊ |
$dateCopy->sub(new DateInterval('P'.$lookback.'D'))->format('Y-m-d 00:00:00')␊ |
);␊ |
␊ |
//␊ |
// now recalculate the values for all projects␊ |
//␊ |
$projects = Pluf::factory('IDF_Project')->getList();␊ |
foreach ($projects as $project) {␊ |
self::recalculateTaxonomy($date, $project, $dateBoundaries, $sectionWeights);␊ |
}␊ |
}␊ |
␊ |
private static function recalculateTaxonomy(DateTime $date, IDF_Project $project, array $dateBoundaries, array $sectionWeights)␊ |
{␊ |
$conf = new IDF_Conf();␊ |
$conf->setProject($project);␊ |
␊ |
$sectionClasses = array(␊ |
'source' => array('IDF_Commit'),␊ |
'issues' => array('IDF_Issue'),␊ |
'wiki' => array('IDF_Wiki_Page', 'IDF_Wiki_Resource'),␊ |
'review' => array('IDF_Review'),␊ |
'downloads' => array('IDF_Upload')␊ |
);␊ |
␊ |
$value = 0;␊ |
foreach ($sectionWeights as $section => $weight) {␊ |
// skip closed / non-existant sections␊ |
if ($conf->getVal($section.'_access_rights', 'none') === 'none')␊ |
continue;␊ |
␊ |
if (!array_key_exists($section, $sectionClasses))␊ |
continue;␊ |
␊ |
$sectionValue = self::calculateActivityValue(␊ |
$dateBoundaries, $sectionClasses[$section], $project->id);␊ |
$value = ((1 - $weight) * $value) + ($weight * $sectionValue);␊ |
}␊ |
␊ |
echo "project {$project->name} has an activity value of $value\n";␊ |
␊ |
$sql = new Pluf_SQL('project=%s AND date=%s', array($project->id, $date->format('Y-m-d')));␊ |
$activity = Pluf::factory('IDF_ProjectActivity')->getOne(array('filter' => $sql->gen()));␊ |
␊ |
if ($activity == null) {␊ |
$activity = new IDF_ProjectActivity();␊ |
$activity->project = $project;␊ |
$activity->date = $date->format('Y-m-d');␊ |
$activity->value = $value;␊ |
$activity->create();␊ |
} else {␊ |
$activity->value = $value;␊ |
$activity->update();␊ |
}␊ |
}␊ |
␊ |
private static function calculateActivityValue(array $dateBoundaries, array $classes, $projectId)␊ |
{␊ |
$allCount = self::countActivityFor($dateBoundaries, $classes);␊ |
if ($allCount == 0) return 0;␊ |
$prjCount = self::countActivityFor($dateBoundaries, $classes, $projectId);␊ |
return $prjCount / (float) $allCount;␊ |
}␊ |
␊ |
private static function countActivityFor(array $dateBoundaries, array $classes, $projectId = null)␊ |
{␊ |
static $cache = array();␊ |
$argIdent = md5(serialize(func_get_args()));␊ |
if (array_key_exists($argIdent, $cache)) {␊ |
return $cache[$argIdent];␊ |
}␊ |
␊ |
$cache[$argIdent] = 0;␊ |
list($higher, $lower) = $dateBoundaries;␊ |
$sql = new Pluf_SQL('model_class IN ("'.implode('","', $classes).'") '.␊ |
'AND creation_dtime >= %s AND creation_dtime <= %s',␊ |
array($lower, $higher));␊ |
␊ |
if ($projectId !== null) {␊ |
$sql->SAnd(new Pluf_SQL('project=%s', array($projectId)));␊ |
}␊ |
␊ |
$cache[$argIdent] = Pluf::factory('IDF_Timeline')->getCount(array('filter' => $sql->gen()));␊ |
␊ |
return $cache[$argIdent];␊ |
}␊ |
} |