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Evaluate after removing member. Closes #36.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| <?php | ||
| /* | ||
| * Shared function to evaluate sessions | ||
| */ | ||
| class SessionEvaluation | ||
| { | ||
| // Evaluate the polls average | ||
| public static function evaluatePoll($session, $currentPoll) | ||
| { | ||
| $sum = 0; | ||
| $count = $currentPoll->getVotes()->count(); | ||
|
|
||
| if($count != $session->getMembers()->count()) | ||
| return false; | ||
|
|
||
| foreach($currentPoll->getVotes() as $vote) | ||
| { | ||
| $sum += $vote->getValue(); | ||
| } | ||
| $currentPoll->setResult($sum / $count); | ||
| $currentPoll->setEndTime(new DateTime()); | ||
|
|
||
| return true; | ||
| } | ||
|
|
||
| // Highlight highest and lowest estimate | ||
| public static function highlightVotes($session, $currentPoll, $cardSet) | ||
| { | ||
| include __DIR__ . "/card-frequency.php"; | ||
|
|
||
| $votes = $currentPoll->getVotes(); | ||
| // Frequency for each card | ||
| $frequencies = []; | ||
| foreach($cardSet as $key=>$card) | ||
| { | ||
| $frequencies[$key] = new CardFrequency($key); | ||
| } | ||
|
|
||
| // Count absolute frequence | ||
| foreach($votes as $vote) | ||
| { | ||
| $frequencies[$vote->getValue()]->count++; | ||
| } | ||
|
|
||
| // Determine most common vote | ||
| foreach($frequencies as $frequency) | ||
| { | ||
| if(!isset($mostCommon) || $mostCommon->count < $frequency->count) | ||
| $mostCommon = $frequency; | ||
| } | ||
|
|
||
| $min = 0; $max = 0; | ||
| // Iterate over frequencies and find lowest | ||
| foreach($frequencies as $frequency) | ||
| { | ||
| $min = self::selectLimits($votes, $frequency, $mostCommon); | ||
| if($min != 0) | ||
| break; | ||
| } | ||
| // Iterate over frequencies and find highest | ||
| foreach(array_reverse($frequencies) as $frequency) | ||
| { | ||
| $max = self::selectLimits($votes, $frequency, $mostCommon); | ||
| if($max != 0) | ||
| break; | ||
| } | ||
|
|
||
| $currentPoll->setConsensus($min == -1 && $max == -1); | ||
| } | ||
|
|
||
| // Select highest or lowest estimates - depends on direction of loop | ||
| private static function selectLimits($votes, $frequency, $mostCommon) | ||
| { | ||
| // No card at all | ||
| if($frequency->count == 0) | ||
| return 0; | ||
| // This is the most common, no lowest found | ||
| if($frequency == $mostCommon) | ||
| return -1; | ||
|
|
||
| foreach($votes as $vote) | ||
| { | ||
| if($vote->getValue() == $frequency->value) | ||
| $vote->setHighlighted(true); | ||
| } | ||
| return 1; | ||
| } | ||
| } |