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 Player 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 Player, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 16 | class Player extends AvatarModel implements NamedModel |
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| 17 | { |
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| 18 | /** |
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| 19 | * These are built-in roles that cannot be deleted via the web interface so we will be storing these values as |
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| 20 | * constant variables. Hopefully, a user won't be silly enough to delete them manually from the database. |
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| 21 | * |
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| 22 | * @TODO Deprecate these and use the Role constants |
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| 23 | */ |
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| 24 | const DEVELOPER = Role::DEVELOPER; |
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| 25 | const ADMIN = Role::ADMINISTRATOR; |
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| 26 | const COP = Role::COP; |
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| 27 | const REFEREE = Role::REFEREE; |
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| 28 | const S_ADMIN = Role::SYSADMIN; |
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| 29 | const PLAYER = Role::PLAYER; |
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| 30 | const PLAYER_NO_PM = Role::PLAYER_NO_PM; |
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| 31 | |||
| 32 | /** |
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| 33 | * The bzid of the player |
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| 34 | * @var int |
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| 35 | */ |
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| 36 | protected $bzid; |
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| 37 | |||
| 38 | /** |
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| 39 | * The id of the player's team |
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| 40 | * @var int |
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| 41 | */ |
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| 42 | protected $team; |
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| 43 | |||
| 44 | /** |
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| 45 | * The player's status |
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| 46 | * @var string |
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| 47 | */ |
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| 48 | protected $status; |
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| 49 | |||
| 50 | /** |
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| 51 | * The player's e-mail address |
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| 52 | * @var string |
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| 53 | */ |
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| 54 | protected $email; |
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| 55 | |||
| 56 | /** |
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| 57 | * Whether the player has verified their e-mail address |
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| 58 | * @var bool |
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| 59 | */ |
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| 60 | protected $verified; |
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| 61 | |||
| 62 | /** |
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| 63 | * What kind of events the player should be e-mailed about |
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| 64 | * @var string |
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| 65 | */ |
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| 66 | protected $receives; |
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| 67 | |||
| 68 | /** |
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| 69 | * A confirmation code for the player's e-mail address verification |
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| 70 | * @var string |
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| 71 | */ |
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| 72 | protected $confirmCode; |
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| 73 | |||
| 74 | /** |
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| 75 | * Whether the callsign of the player is outdated |
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| 76 | * @var bool |
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| 77 | */ |
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| 78 | protected $outdated; |
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| 79 | |||
| 80 | /** |
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| 81 | * The player's profile description |
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| 82 | * @var string |
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| 83 | */ |
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| 84 | protected $description; |
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| 85 | |||
| 86 | /** |
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| 87 | * The id of the player's country |
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| 88 | * @var int |
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| 89 | */ |
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| 90 | protected $country; |
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| 91 | |||
| 92 | /** |
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| 93 | * The player's timezone PHP identifier, e.g. "Europe/Paris" |
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| 94 | * @var string |
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| 95 | */ |
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| 96 | protected $timezone; |
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| 97 | |||
| 98 | /** |
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| 99 | * The date the player joined the site |
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| 100 | * @var TimeDate |
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| 101 | */ |
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| 102 | protected $joined; |
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| 103 | |||
| 104 | /** |
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| 105 | * The date of the player's last login |
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| 106 | * @var TimeDate |
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| 107 | */ |
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| 108 | protected $last_login; |
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| 109 | |||
| 110 | /** |
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| 111 | * The roles a player belongs to |
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| 112 | * @var Role[] |
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| 113 | */ |
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| 114 | protected $roles; |
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| 115 | |||
| 116 | /** |
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| 117 | * The permissions a player has |
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| 118 | * @var Permission[] |
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| 119 | */ |
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| 120 | protected $permissions; |
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| 121 | |||
| 122 | /** |
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| 123 | * A section for admins to write notes about players |
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| 124 | * @var string |
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| 125 | */ |
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| 126 | protected $admin_notes; |
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| 127 | |||
| 128 | /** |
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| 129 | * The ban of the player, or null if the player is not banned |
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| 130 | * @var Ban|null |
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| 131 | */ |
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| 132 | protected $ban; |
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| 133 | |||
| 134 | /** |
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| 135 | * The name of the database table used for queries |
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| 136 | */ |
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| 137 | const TABLE = "players"; |
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| 138 | |||
| 139 | /** |
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| 140 | * The location where avatars will be stored |
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| 141 | */ |
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| 142 | const AVATAR_LOCATION = "/web/assets/imgs/avatars/players/"; |
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| 143 | |||
| 144 | const EDIT_PERMISSION = Permission::EDIT_USER; |
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| 145 | const SOFT_DELETE_PERMISSION = Permission::SOFT_DELETE_USER; |
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| 146 | const HARD_DELETE_PERMISSION = Permission::HARD_DELETE_USER; |
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| 147 | |||
| 148 | /** |
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| 149 | * {@inheritdoc} |
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| 150 | */ |
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| 151 | 38 | protected function assignResult($player) |
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| 161 | |||
| 162 | /** |
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| 163 | * {@inheritdoc} |
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| 164 | */ |
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| 165 | 38 | protected function assignLazyResult($player) |
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| 181 | |||
| 182 | /** |
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| 183 | * Add a player a new role |
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| 184 | * |
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| 185 | * @param Role|int $role_id The role ID to add a player to |
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| 186 | * |
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| 187 | * @return bool Whether the operation was successful or not |
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| 188 | */ |
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| 189 | 38 | public function addRole($role_id) |
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| 190 | { |
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| 191 | 38 | if ($role_id instanceof Role) { |
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| 192 | 1 | $role_id = $role_id->getId(); |
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| 193 | 1 | } |
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| 194 | |||
| 195 | 38 | $this->lazyLoad(); |
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| 196 | |||
| 197 | // Make sure the player doesn't already have the role |
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| 198 | 38 | foreach ($this->roles as $playerRole) { |
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| 199 | 14 | if ($playerRole->getId() == $role_id) { |
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| 200 | return false; |
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| 201 | } |
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| 202 | 38 | } |
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| 203 | |||
| 204 | 38 | $status = $this->modifyRole($role_id, "add"); |
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| 205 | 38 | $this->refresh(); |
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| 206 | |||
| 207 | 38 | return $status; |
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| 208 | } |
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| 209 | |||
| 210 | /** |
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| 211 | * Get the notes admins have left about a player |
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| 212 | * @return string The notes |
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| 213 | */ |
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| 214 | public function getAdminNotes() |
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| 220 | |||
| 221 | /** |
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| 222 | * Get the player's BZID |
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| 223 | * @return int The BZID |
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| 224 | */ |
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| 225 | public function getBZID() |
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| 229 | |||
| 230 | /** |
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| 231 | * Get the country a player belongs to |
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| 232 | * |
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| 233 | * @return Country The country belongs to |
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| 234 | */ |
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| 235 | public function getCountry() |
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| 236 | { |
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| 237 | return Country::get($this->country); |
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| 238 | } |
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| 239 | |||
| 240 | /** |
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| 241 | * Get the e-mail address of the player |
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| 242 | * |
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| 243 | * @return string The address |
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| 244 | */ |
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| 245 | public function getEmailAddress() |
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| 251 | |||
| 252 | /** |
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| 253 | * Returns whether the player has verified their e-mail address |
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| 254 | * |
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| 255 | * @return bool `true` for verified players |
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| 256 | */ |
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| 257 | public function isVerified() |
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| 263 | |||
| 264 | /** |
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| 265 | * Returns the confirmation code for the player's e-mail address verification |
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| 266 | * |
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| 267 | * @return string The player's confirmation code |
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| 268 | */ |
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| 269 | public function getConfirmCode() |
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| 275 | |||
| 276 | /** |
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| 277 | * Returns what kind of events the player should be e-mailed about |
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| 278 | * |
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| 279 | * @return string The type of notifications |
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| 280 | */ |
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| 281 | public function getReceives() |
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| 287 | |||
| 288 | /** |
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| 289 | * Finds out whether the specified player wants and can receive an e-mail |
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| 290 | * message |
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| 291 | * |
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| 292 | * @param string $type |
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| 293 | * @return bool `true` if the player should be sent an e-mail |
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| 294 | */ |
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| 295 | public function canReceive($type) |
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| 310 | |||
| 311 | /** |
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| 312 | * Find out whether the specified confirmation code is correct |
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| 313 | * |
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| 314 | * This method protects against timing attacks |
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| 315 | * |
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| 316 | * @param string $code The confirmation code to check |
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| 317 | * @return bool `true` for a correct e-mail verification code |
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| 318 | */ |
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| 319 | public function isCorrectConfirmCode($code) |
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| 329 | |||
| 330 | /** |
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| 331 | * Get the player's sanitized description |
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| 332 | * @return string The description |
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| 333 | */ |
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| 334 | public function getDescription() |
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| 340 | |||
| 341 | /** |
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| 342 | * Get the joined date of the player |
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| 343 | * @return TimeDate The joined date of the player |
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| 344 | */ |
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| 345 | public function getJoinedDate() |
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| 351 | |||
| 352 | /** |
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| 353 | * Get all of the known IPs used by the player |
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| 354 | * |
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| 355 | * @return string[][] An array containing IPs and hosts |
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| 356 | */ |
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| 357 | public function getKnownIPs() |
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| 361 | |||
| 362 | /** |
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| 363 | * Get the last login for a player |
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| 364 | * @return TimeDate The date of the last login |
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| 365 | */ |
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| 366 | public function getLastLogin() |
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| 372 | |||
| 373 | /** |
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| 374 | * Get all of the callsigns a player has used to log in to the website |
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| 375 | * @return string[] An array containing all of the past callsigns recorded for a player |
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| 376 | */ |
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| 377 | public function getPastCallsigns() |
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| 381 | |||
| 382 | /** |
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| 383 | * Get the player's team |
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| 384 | * @return Team The object representing the team |
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| 385 | */ |
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| 386 | 1 | public function getTeam() |
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| 390 | |||
| 391 | /** |
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| 392 | * Get the player's timezone PHP identifier (example: "Europe/Paris") |
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| 393 | * @return string The timezone |
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| 394 | */ |
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| 395 | public function getTimezone() |
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| 401 | |||
| 402 | /** |
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| 403 | * Get the roles of the player |
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| 404 | * @return Role[] |
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| 405 | */ |
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| 406 | public function getRoles() |
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| 412 | |||
| 413 | /** |
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| 414 | * Rebuild the list of permissions a user has been granted |
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| 415 | */ |
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| 416 | 38 | private function updateUserPermissions() |
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| 425 | |||
| 426 | /** |
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| 427 | * Check if a player has a specific permission |
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| 428 | * |
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| 429 | * @param string|null $permission The permission to check for |
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| 430 | * |
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| 431 | * @return bool Whether or not the player has the permission |
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| 432 | */ |
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| 433 | 1 | public function hasPermission($permission) |
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| 443 | |||
| 444 | /** |
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| 445 | * Check whether the callsign of the player is outdated |
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| 446 | * |
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| 447 | * Returns true if this player has probably changed their callsign, making |
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| 448 | * the current username stored in the database obsolete |
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| 449 | * |
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| 450 | * @return bool Whether or not the player is disabled |
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| 451 | */ |
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| 452 | public function isOutdated() |
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| 458 | |||
| 459 | /** |
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| 460 | * Check if a player's account has been disabled |
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| 461 | * |
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| 462 | * @return bool Whether or not the player is disabled |
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| 463 | */ |
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| 464 | public function isDisabled() |
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| 468 | |||
| 469 | /** |
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| 470 | * Check if everyone can log in as this user on a test environment |
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| 471 | * |
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| 472 | * @return bool |
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| 473 | */ |
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| 474 | public function isTestUser() |
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| 478 | |||
| 479 | /** |
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| 480 | * Check if a player is teamless |
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| 481 | * |
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| 482 | * @return bool True if the player is teamless |
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| 483 | */ |
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| 484 | 17 | public function isTeamless() |
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| 488 | |||
| 489 | /** |
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| 490 | * Mark a player's account as banned |
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| 491 | */ |
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| 492 | 1 | public function markAsBanned() |
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| 500 | |||
| 501 | /** |
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| 502 | * Mark a player's account as unbanned |
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| 503 | */ |
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| 504 | public function markAsUnbanned() |
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| 512 | |||
| 513 | /** |
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| 514 | * Find out if a player is banned |
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| 515 | * |
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| 516 | * @return bool |
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| 517 | */ |
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| 518 | 2 | public function isBanned() |
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| 522 | |||
| 523 | /** |
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| 524 | * Get the ban of the player |
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| 525 | * |
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| 526 | * This method performs a load of all the lazy parameters of the Player |
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| 527 | * |
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| 528 | * @return Ban|null The current ban of the player, or null if the player is |
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| 529 | * is not banned |
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| 530 | */ |
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| 531 | public function getBan() |
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| 537 | |||
| 538 | /** |
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| 539 | * Remove a player from a role |
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| 540 | * |
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| 541 | * @param int $role_id The role ID to add or remove |
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| 542 | * |
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| 543 | * @return bool Whether the operation was successful or not |
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| 544 | */ |
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| 545 | public function removeRole($role_id) |
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| 552 | |||
| 553 | /** |
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| 554 | * Set the player's email address and reset their verification status |
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| 555 | * @param string $email The address |
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| 556 | */ |
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| 557 | public function setEmailAddress($email) |
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| 572 | |||
| 573 | /** |
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| 574 | * Set whether the player has verified their e-mail address |
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| 575 | * |
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| 576 | * @param bool $verified Whether the player is verified or not |
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| 577 | * @return self |
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| 578 | */ |
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| 579 | public function setVerified($verified) |
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| 589 | |||
| 590 | /** |
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| 591 | * Generate a new random confirmation token for e-mail address verification |
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| 592 | * |
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| 593 | * @return self |
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| 594 | */ |
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| 595 | public function generateNewConfirmCode() |
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| 602 | |||
| 603 | /** |
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| 604 | * Set the confirmation token for e-mail address verification |
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| 605 | * |
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| 606 | * @param string $code The confirmation code |
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| 607 | * @return self |
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| 608 | */ |
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| 609 | private function setConfirmCode($code) |
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| 615 | |||
| 616 | /** |
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| 617 | * Set what kind of events the player should be e-mailed about |
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| 618 | * |
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| 619 | * @param string $receives The type of notification |
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| 620 | * @return self |
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| 621 | */ |
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| 622 | public function setReceives($receives) |
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| 628 | |||
| 629 | /** |
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| 630 | * Set whether the callsign of the player is outdated |
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| 631 | * |
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| 632 | * @param bool $outdated Whether the callsign is outdated |
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| 633 | * @return self |
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| 634 | */ |
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| 635 | 38 | public function setOutdated($outdated) |
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| 641 | |||
| 642 | /** |
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| 643 | * Set the player's description |
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| 644 | * @param string $description The description |
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| 645 | */ |
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| 646 | public function setDescription($description) |
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| 651 | |||
| 652 | /** |
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| 653 | * Set the player's timezone |
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| 654 | * @param string $timezone The timezone |
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| 655 | */ |
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| 656 | public function setTimezone($timezone) |
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| 661 | |||
| 662 | /** |
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| 663 | * Set the player's team |
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| 664 | * @param int $team The team's ID |
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| 665 | */ |
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| 666 | 17 | public function setTeam($team) |
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| 671 | |||
| 672 | /** |
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| 673 | * Set the player's status |
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| 674 | * @param string $status The new status |
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| 675 | */ |
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| 676 | public function setStatus($status) |
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| 680 | |||
| 681 | /** |
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| 682 | * Set the player's admin notes |
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| 683 | * @param string $admin_notes The new admin notes |
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| 684 | * @return self |
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| 685 | */ |
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| 686 | public function setAdminNotes($admin_notes) |
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| 690 | |||
| 691 | /** |
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| 692 | * Set the player's country |
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| 693 | * @param int $country The ID of the new country |
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| 694 | * @return self |
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| 695 | */ |
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| 696 | public function setCountry($country) |
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| 700 | |||
| 701 | /** |
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| 702 | * Updates this player's last login |
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| 703 | */ |
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| 704 | public function updateLastLogin() |
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| 708 | |||
| 709 | /** |
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| 710 | * Get the player's username |
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| 711 | * @return string The username |
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| 712 | */ |
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| 713 | public function getUsername() |
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| 717 | |||
| 718 | /** |
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| 719 | * Get the player's username, safe for use in your HTML |
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| 720 | * @return string The username |
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| 721 | */ |
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| 722 | public function getEscapedUsername() |
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| 726 | |||
| 727 | /** |
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| 728 | * Alias for Player::setUsername() |
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| 729 | * |
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| 730 | * @param string $username The new username |
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| 731 | * @return self |
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| 732 | */ |
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| 733 | public function setName($username) |
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| 737 | |||
| 738 | /** |
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| 739 | * Mark all the unread messages of a player as read |
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| 740 | * |
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| 741 | * @return void |
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| 742 | */ |
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| 743 | public function markMessagesAsRead() |
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| 750 | |||
| 751 | /** |
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| 752 | * Set the roles of a user |
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| 753 | * |
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| 754 | * @todo Is it worth making this faster? |
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| 755 | * @param Role[] $roles The new roles of the user |
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| 756 | * @return self |
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| 757 | */ |
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| 758 | public function setRoles($roles) |
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| 781 | |||
| 782 | /** |
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| 783 | * Give or remove a role to/form a player |
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| 784 | * |
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| 785 | * @param int $role_id The role ID to add or remove |
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| 786 | * @param string $action Whether to "add" or "remove" a role for a player |
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| 787 | * |
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| 788 | * @return bool Whether the operation was successful or not |
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| 789 | */ |
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| 790 | 38 | private function modifyRole($role_id, $action) |
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| 808 | |||
| 809 | /** |
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| 810 | * Given a player's BZID, get a player object |
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| 811 | * |
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| 812 | * @param int $bzid The player's BZID |
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| 813 | * @return Player |
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| 814 | */ |
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| 815 | public static function getFromBZID($bzid) |
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| 819 | |||
| 820 | /** |
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| 821 | * Get a single player by their username |
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| 822 | * |
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| 823 | * @param string $username The username to look for |
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| 824 | * @return Player |
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| 825 | */ |
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| 826 | public static function getFromUsername($username) |
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| 832 | |||
| 833 | /** |
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| 834 | * Get all the players in the database that have an active status |
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| 835 | * @return Player[] An array of player BZIDs |
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| 836 | */ |
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| 837 | public static function getPlayers() |
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| 843 | |||
| 844 | /** |
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| 845 | * Show the number of notifications the user hasn't read yet |
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| 846 | * @return int |
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| 847 | */ |
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| 848 | public function countUnreadNotifications() |
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| 852 | |||
| 853 | /** |
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| 854 | * Show the number of messages the user hasn't read yet |
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| 855 | * @return int |
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| 856 | */ |
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| 857 | public function countUnreadMessages() |
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| 863 | |||
| 864 | /** |
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| 865 | * Get all of the members belonging to a team |
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| 866 | * @param int $teamID The ID of the team to fetch the members of |
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| 867 | * @return Player[] An array of Player objects of the team members |
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| 868 | */ |
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| 869 | 1 | public static function getTeamMembers($teamID) |
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| 875 | |||
| 876 | /** |
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| 877 | * {@inheritdoc} |
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| 878 | */ |
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| 879 | public static function getActiveStatuses() |
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| 883 | |||
| 884 | /** |
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| 885 | * {@inheritdoc} |
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| 886 | */ |
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| 887 | 38 | public static function getEagerColumns() |
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| 891 | |||
| 892 | /** |
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| 893 | * {@inheritdoc} |
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| 894 | */ |
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| 895 | 38 | public static function getLazyColumns() |
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| 899 | |||
| 900 | /** |
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| 901 | * Get a query builder for players |
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| 902 | * @return QueryBuilder |
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| 903 | */ |
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| 904 | View Code Duplication | public static function getQueryBuilder() |
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| 916 | |||
| 917 | /** |
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| 918 | * Enter a new player to the database |
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| 919 | * @param int $bzid The player's bzid |
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| 920 | * @param string $username The player's username |
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| 921 | * @param int $team The player's team |
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| 922 | * @param string $status The player's status |
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| 923 | * @param int $role_id The player's role when they are first created |
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| 924 | * @param string $avatar The player's profile avatar |
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| 925 | * @param string $description The player's profile description |
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| 926 | * @param int $country The player's country |
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| 927 | * @param string $timezone The player's timezone |
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| 928 | * @param string|\TimeDate $joined The date the player joined |
||
| 929 | * @param string|\TimeDate $last_login The timestamp of the player's last login |
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| 930 | * @return Player An object representing the player that was just entered |
||
| 931 | */ |
||
| 932 | 38 | public static function newPlayer($bzid, $username, $team = null, $status = "active", $role_id = self::PLAYER, $avatar = "", $description = "", $country = 1, $timezone = null, $joined = "now", $last_login = "now") |
|
| 958 | |||
| 959 | /** |
||
| 960 | * Determine if a player exists in the database |
||
| 961 | * @param int $bzid The player's bzid |
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| 962 | * @return bool Whether the player exists in the database |
||
| 963 | */ |
||
| 964 | public static function playerBZIDExists($bzid) |
||
| 968 | |||
| 969 | /** |
||
| 970 | * Change a player's callsign and add it to the database if it does not |
||
| 971 | * exist as a past callsign |
||
| 972 | * |
||
| 973 | * @param string $username The new username of the player |
||
| 974 | * @return self |
||
| 975 | */ |
||
| 976 | 38 | public function setUsername($username) |
|
| 1007 | |||
| 1008 | /** |
||
| 1009 | * Alphabetical order function for use in usort (case-insensitive) |
||
| 1010 | * @return Closure The sort function |
||
| 1011 | */ |
||
| 1012 | public static function getAlphabeticalSort() |
||
| 1018 | |||
| 1019 | /** |
||
| 1020 | * {@inheritdoc} |
||
| 1021 | * @todo Add a constraint that does this automatically |
||
| 1022 | */ |
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| 1023 | 38 | public function wipe() |
|
| 1029 | |||
| 1030 | /** |
||
| 1031 | * Find whether the player can delete a model |
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| 1032 | * |
||
| 1033 | * @param PermissionModel $model The model that will be seen |
||
| 1034 | * @param bool $showDeleted Whether to show deleted models to admins |
||
| 1035 | * @return bool |
||
| 1036 | */ |
||
| 1037 | public function canSee($model, $showDeleted = false) |
||
| 1041 | |||
| 1042 | /** |
||
| 1043 | * Find whether the player can delete a model |
||
| 1044 | * |
||
| 1045 | * @param PermissionModel $model The model that will be deleted |
||
| 1046 | * @param bool $hard Whether to check for hard-delete perms, as opposed |
||
| 1047 | * to soft-delete ones |
||
| 1048 | * @return bool |
||
| 1049 | */ |
||
| 1050 | public function canDelete($model, $hard = false) |
||
| 1058 | |||
| 1059 | /** |
||
| 1060 | * Find whether the player can create a model |
||
| 1061 | * |
||
| 1062 | * @param string $modelName The PHP class identifier of the model type |
||
| 1063 | * @return bool |
||
| 1064 | */ |
||
| 1065 | public function canCreate($modelName) |
||
| 1069 | |||
| 1070 | /** |
||
| 1071 | * Find whether the player can edit a model |
||
| 1072 | * |
||
| 1073 | * @param PermissionModel $model The model which will be edited |
||
| 1074 | * @return bool |
||
| 1075 | */ |
||
| 1076 | public function canEdit($model) |
||
| 1080 | } |
||
| 1081 |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..