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:
Complex classes like Team often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Team, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 13 | class Team extends AvatarModel |
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| 14 | { |
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| 15 | /** |
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| 16 | * The description of the team written in markdown |
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| 17 | * |
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| 18 | * @var string |
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| 19 | */ |
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| 20 | protected $description; |
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| 21 | |||
| 22 | /** |
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| 23 | * The creation date of the team |
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| 24 | * |
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| 25 | * @var TimeDate |
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| 26 | */ |
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| 27 | protected $created; |
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| 28 | |||
| 29 | /** |
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| 30 | * The team's current elo |
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| 31 | * |
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| 32 | * @var int |
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| 33 | */ |
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| 34 | protected $elo; |
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| 35 | |||
| 36 | /** |
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| 37 | * The team's activity |
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| 38 | * |
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| 39 | * null if we haven't calculated it yet |
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| 40 | * |
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| 41 | * @var float|null |
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| 42 | */ |
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| 43 | protected $activity = null; |
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| 44 | |||
| 45 | /** |
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| 46 | * The id of the team leader |
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| 47 | * |
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| 48 | * @var int |
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| 49 | */ |
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| 50 | protected $leader; |
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| 51 | |||
| 52 | /** |
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| 53 | * The number of matches won |
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| 54 | * |
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| 55 | * @var int |
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| 56 | */ |
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| 57 | protected $matches_won; |
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| 58 | |||
| 59 | /** |
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| 60 | * The number of matches lost |
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| 61 | * |
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| 62 | * @var int |
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| 63 | */ |
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| 64 | protected $matches_lost; |
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| 65 | |||
| 66 | /** |
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| 67 | * The number of matches tied |
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| 68 | * |
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| 69 | * @var int |
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| 70 | */ |
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| 71 | protected $matches_draw; |
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| 72 | |||
| 73 | /** |
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| 74 | * The total number of matches |
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| 75 | * |
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| 76 | * @var int |
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| 77 | */ |
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| 78 | protected $matches_total; |
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| 79 | |||
| 80 | /** |
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| 81 | * The number of members |
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| 82 | * |
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| 83 | * @var int |
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| 84 | */ |
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| 85 | protected $members; |
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| 86 | |||
| 87 | /** |
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| 88 | * The team's status |
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| 89 | * |
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| 90 | * @var string |
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| 91 | */ |
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| 92 | protected $status; |
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| 93 | |||
| 94 | /** |
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| 95 | * A list of cached matches to calculate team activity |
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| 96 | * |
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| 97 | * @var Match[]|null |
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| 98 | */ |
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| 99 | public static $cachedMatches = null; |
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| 100 | |||
| 101 | /** |
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| 102 | * The name of the database table used for queries |
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| 103 | */ |
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| 104 | const TABLE = "teams"; |
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| 105 | |||
| 106 | /** |
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| 107 | * The location where avatars will be stored |
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| 108 | */ |
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| 109 | const AVATAR_LOCATION = "/web/assets/imgs/avatars/teams/"; |
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| 110 | |||
| 111 | const CREATE_PERMISSION = Permission::CREATE_TEAM; |
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| 112 | const EDIT_PERMISSION = Permission::EDIT_TEAM; |
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| 113 | const SOFT_DELETE_PERMISSION = Permission::SOFT_DELETE_TEAM; |
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| 114 | const HARD_DELETE_PERMISSION = Permission::HARD_DELETE_TEAM; |
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| 115 | |||
| 116 | /** |
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| 117 | 18 | * {@inheritdoc} |
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| 118 | */ |
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| 119 | 18 | protected function assignResult($team) |
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| 137 | |||
| 138 | /** |
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| 139 | * Adds a new member to the team |
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| 140 | * |
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| 141 | * @param int $id The id of the player to add to the team |
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| 142 | * |
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| 143 | 18 | * @return bool|null True if both the player was added to the team AND the team member count was incremented |
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| 144 | */ |
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| 145 | 18 | public function addMember($id) |
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| 156 | |||
| 157 | /** |
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| 158 | * Increase or decrease the ELO of the team |
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| 159 | * |
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| 160 | 9 | * @param int $adjust The value to be added to the current ELO (negative to substract) |
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| 161 | */ |
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| 162 | 9 | public function changeElo($adjust) |
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| 167 | |||
| 168 | /** |
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| 169 | * Change the ELO of the team |
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| 170 | * |
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| 171 | * @param int $elo The new team ELO |
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| 172 | */ |
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| 173 | public function setElo($elo) |
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| 177 | |||
| 178 | /** |
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| 179 | * Increment the team's match count |
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| 180 | * |
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| 181 | * @param int $adjust The number to add to the current matches number (negative to substract) |
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| 182 | 9 | * @param string $type The match count that should be changed. Can be 'win', 'draw' or 'loss' |
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| 183 | */ |
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| 184 | 9 | public function changeMatchCount($adjust, $type) |
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| 205 | |||
| 206 | /** |
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| 207 | * Decrement the team's match count by one |
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| 208 | * |
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| 209 | * @param string $type The type of the match. Can be 'win', 'draw' or 'loss' |
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| 210 | */ |
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| 211 | public function decrementMatchCount($type) |
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| 215 | |||
| 216 | /** |
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| 217 | * Get the activity of the team |
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| 218 | * |
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| 219 | 1 | * @return float The team's activity |
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| 220 | */ |
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| 221 | 1 | public function getActivity() |
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| 244 | 2 | ||
| 245 | /** |
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| 246 | 2 | * Get the creation date of the team |
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| 247 | * |
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| 248 | * @return TimeDate The creation date of the team |
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| 249 | */ |
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| 250 | public function getCreationDate() |
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| 254 | |||
| 255 | 1 | /** |
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| 256 | * Get the description of the team |
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| 257 | 1 | * |
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| 258 | * @param bool $md false for HTML format, true for the original markdown |
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| 259 | * @return string The description of the team |
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| 260 | */ |
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| 261 | public function getDescription() |
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| 265 | 9 | ||
| 266 | /** |
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| 267 | 9 | * Get the current elo of the team |
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| 268 | * |
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| 269 | * @return int The elo of the team |
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| 270 | */ |
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| 271 | public function getElo() |
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| 275 | 2 | ||
| 276 | /** |
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| 277 | 2 | * Get the leader of the team |
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| 278 | * |
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| 279 | * @return Player The object representing the team leader |
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| 280 | */ |
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| 281 | public function getLeader() |
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| 285 | |||
| 286 | /** |
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| 287 | * Get the matches this team has participated in |
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| 288 | * |
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| 289 | 2 | * @param string $matchType The filter for match types: "all", "wins", "losses", or "draws" |
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| 290 | * @param int $count The amount of matches to be retrieved |
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| 291 | 2 | * @param int $page The number of the page to return |
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| 292 | 2 | * |
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| 293 | 2 | * @return Match[] The array of match IDs this team has participated in |
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| 294 | 2 | */ |
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| 295 | 2 | public function getMatches($matchType = "all", $count = 5, $page = 1) |
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| 304 | 1 | ||
| 305 | /** |
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| 306 | 1 | * Get the number of matches that resulted as a draw |
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| 307 | * |
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| 308 | * @return int The number of matches, respectively |
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| 309 | */ |
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| 310 | public function getMatchesDraw() |
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| 314 | 1 | ||
| 315 | /** |
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| 316 | 1 | * Get the number of matches that the team has lost |
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| 317 | * |
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| 318 | * @return int The number of matches, respectively |
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| 319 | */ |
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| 320 | public function getMatchesLost() |
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| 324 | |||
| 325 | /** |
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| 326 | * Get the URL that points to the team's list of matches |
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| 327 | * |
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| 328 | * @return string The team's list of matches |
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| 329 | */ |
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| 330 | public function getMatchesURL() |
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| 334 | 1 | ||
| 335 | /** |
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| 336 | 1 | * Get the number of matches that the team has won |
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| 337 | * |
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| 338 | * @return int The number of matches, respectively |
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| 339 | */ |
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| 340 | public function getMatchesWon() |
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| 344 | 2 | ||
| 345 | /** |
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| 346 | 2 | * Get the members on the team |
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| 347 | 2 | * |
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| 348 | * @return Player[] The members on the team |
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| 349 | */ |
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| 350 | public function getMembers() |
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| 372 | 18 | ||
| 373 | /** |
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| 374 | 18 | * Get the name of the team |
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| 375 | * |
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| 376 | * @return string The name of the team |
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| 377 | 18 | */ |
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| 378 | public function getName() |
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| 385 | 1 | ||
| 386 | /** |
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| 387 | 1 | * Get the name of the team, safe for use in your HTML |
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| 388 | * |
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| 389 | * @return string The name of the team |
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| 390 | 1 | */ |
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| 391 | public function getEscapedName() |
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| 398 | 2 | ||
| 399 | /** |
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| 400 | 2 | * Get the number of members on the team |
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| 401 | * |
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| 402 | * @return int The number of members on the team |
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| 403 | */ |
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| 404 | public function getNumMembers() |
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| 408 | 1 | ||
| 409 | /** |
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| 410 | 1 | * Get the total number of matches this team has played |
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| 411 | * |
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| 412 | * @return int The total number of matches this team has played |
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| 413 | */ |
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| 414 | public function getNumTotalMatches() |
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| 418 | |||
| 419 | /** |
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| 420 | 1 | * Get the rank category a team belongs too based on their ELO |
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| 421 | * |
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| 422 | 1 | * This value is always a multiple of 100 and less than or equal to 2000 |
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| 423 | * |
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| 424 | * @return int The rank category a team belongs to |
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| 425 | */ |
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| 426 | public function getRankValue() |
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| 430 | 1 | ||
| 431 | /** |
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| 432 | 1 | * Get the HTML for an image with the rank symbol |
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| 433 | * |
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| 434 | * @return string The HTML for a rank image |
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| 435 | */ |
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| 436 | public function getRankImageLiteral() |
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| 440 | |||
| 441 | /** |
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| 442 | * Increment the team's match count by one |
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| 443 | * |
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| 444 | * @param string $type The type of the match. Can be 'win', 'draw' or 'loss' |
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| 445 | */ |
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| 446 | public function incrementMatchCount($type) |
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| 450 | |||
| 451 | /** |
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| 452 | 2 | * Check if a player is part of this team |
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| 453 | * |
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| 454 | 2 | * @param int $playerID The player to check |
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| 455 | * |
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| 456 | 2 | * @return bool True if the player belongs to this team |
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| 457 | */ |
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| 458 | public function isMember($playerID) |
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| 464 | |||
| 465 | 2 | /** |
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| 466 | * Removes a member from the team |
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| 467 | 2 | * |
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| 468 | * @param int $id The id of the player to remove |
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| 469 | * @return void |
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| 470 | */ |
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| 471 | 2 | public function removeMember($id) |
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| 482 | |||
| 483 | /** |
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| 484 | * Update the description of the team |
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| 485 | * |
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| 486 | * @param string $description The description of the team written as markdown |
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| 487 | * @return void |
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| 488 | */ |
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| 489 | public function setDescription($description) |
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| 493 | |||
| 494 | /** |
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| 495 | * Change the status of the team |
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| 496 | * |
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| 497 | * @param string $newStatus The new status of the team (open, closed, disabled or deleted) |
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| 498 | * @return self |
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| 499 | */ |
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| 500 | public function setStatus($newStatus) |
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| 504 | |||
| 505 | /** |
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| 506 | * Change the leader of the team |
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| 507 | * |
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| 508 | * @param int $leader The ID of the new leader of the team |
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| 509 | * @return self |
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| 510 | */ |
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| 511 | public function setLeader($leader) |
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| 515 | |||
| 516 | 1 | /** |
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| 517 | * Find if a specific match is the team's last one |
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| 518 | * |
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| 519 | 1 | * @param int $matchID The ID of the match |
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| 520 | 1 | * @return bool |
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| 521 | 1 | */ |
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| 522 | 1 | public function isLastMatch($matchID) |
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| 531 | 1 | ||
| 532 | /** |
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| 533 | * {@inheritdoc} |
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| 534 | 1 | */ |
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| 535 | 1 | public function delete() |
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| 536 | 1 | { |
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| 537 | 1 | parent::delete(); |
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| 538 | |||
| 539 | // Remove all the members of a deleted team |
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| 540 | $this->updateProperty($this->members, 'members', 0, 'i'); |
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| 541 | $this->db->query("UPDATE `players` SET `team` = NULL WHERE `team` = ?", |
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| 542 | 'i', $this->id); |
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| 543 | } |
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| 544 | |||
| 545 | /** |
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| 546 | * Create a new team |
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| 547 | * |
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| 548 | * @param string $name The name of the team |
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| 549 | * @param int $leader The ID of the person creating the team, also the leader |
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| 550 | * @param string $avatar The URL to the team's avatar |
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| 551 | 19 | * @param string $description The team's description |
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| 552 | * @param string $status The team's status (open, closed, disabled or deleted) |
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| 553 | 19 | * @param string|\TimeDate $created The date the team was created |
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| 554 | * |
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| 555 | 19 | * @return Team An object that represents the newly created team |
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| 556 | 19 | */ |
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| 557 | 19 | public static function createTeam($name, $leader, $avatar, $description, $status = 'closed', $created = "now") |
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| 582 | |||
| 583 | /** |
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| 584 | * Get all the teams in the database that are not disabled or deleted |
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| 585 | * |
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| 586 | * @return Team[] An array of Team IDs |
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| 587 | */ |
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| 588 | public static function getTeams() |
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| 597 | |||
| 598 | 1 | /** |
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| 599 | * Get a single team by its name |
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| 600 | 1 | * |
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| 601 | * @param string $name The team name to look for |
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| 602 | 1 | * @return Team |
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| 603 | */ |
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| 604 | public static function getFromName($name) |
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| 610 | |||
| 611 | 1 | /** |
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| 612 | * Alphabetical order function for use in usort (case-insensitive) |
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| 613 | 1 | * @return Closure The sort function |
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| 614 | */ |
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| 615 | public static function getAlphabeticalSort() |
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| 621 | 1 | ||
| 622 | /** |
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| 623 | * {@inheritdoc} |
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| 624 | */ |
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| 625 | public static function getActiveStatuses() |
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| 629 | |||
| 630 | 1 | /** |
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| 631 | * Get a query builder for teams |
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| 632 | * @return QueryBuilder |
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| 633 | */ |
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| 634 | View Code Duplication | public static function getQueryBuilder() |
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| 646 | 1 | ||
| 647 | /** |
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| 648 | * {@inheritdoc} |
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| 649 | */ |
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| 650 | protected function isEditor($player) |
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| 654 | } |
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| 655 |
This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italyis not defined by the methodfinale(...).The most likely cause is that the parameter was removed, but the annotation was not.