Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php |
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| 8 | class LeaderboardService |
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| 9 | { |
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| 10 | public function __construct(MatchRound $matchRoundRepo) |
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| 11 | { |
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| 12 | $this->matchround = $matchRoundRepo; |
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| 13 | } |
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| 14 | |||
| 15 | public function calculate($matchId, $type) |
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| 16 | { |
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| 17 | $rounds = $this->matchround->getByMatch($matchId); |
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| 18 | $leaderboard = array(); |
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| 19 | foreach ($rounds as $round){ |
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| 20 | $holescores = $round->holescores; |
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| 21 | //Filter out NULL scores |
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| 22 | $filteredHolecores = $holescores->filter(function($holescore){ |
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| 23 | if ($holescore->score != null) { |
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| 24 | return true; |
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| 25 | } |
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| 26 | }); |
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| 27 | //at this point have a collection of filtered holescores |
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| 28 | $holescoreCount = $filteredHolecores->count(); |
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| 29 | $par = $this->currentParTotal($round->course_id, $holescoreCount); |
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| 30 | |||
| 31 | if($type === 'net') { |
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| 32 | |||
| 33 | $handicap = round($this->matchround->getMatchPlayerHandicap($matchId, $round->player->id),0); |
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| 34 | //$handicap = round($round->player->handicap,0); |
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| 35 | $par = $handicap + $par; |
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| 36 | } |
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| 37 | $playerScore = $filteredHolecores->sum('score'); |
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| 38 | |||
| 39 | $player = [ |
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| 40 | "name" => $round->player->name, |
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| 41 | "score" => $playerScore - $par, |
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| 42 | ]; |
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| 43 | array_push($leaderboard, $player); |
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| 44 | } |
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| 45 | $name = array(); |
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| 46 | $score = array(); |
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| 47 | View Code Duplication | foreach ($leaderboard as $key => $player) { |
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| 48 | $name[$key] = $player['name']; |
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| 49 | $score[$key] = $player['score']; |
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| 50 | } |
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| 51 | |||
| 52 | array_multisort($score, SORT_ASC, $name, SORT_ASC, $leaderboard); |
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| 53 | return $leaderboard; |
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| 54 | |||
| 55 | } |
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| 56 | /* |
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| 57 | * Given a courseID and #of holes played return par total |
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| 58 | * @return int |
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| 59 | */ |
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| 60 | public function currentParTotal($courseId, $holesPlayed) |
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| 68 | |||
| 69 | |||
| 70 | } |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: