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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| 20 | class Notifications extends AbstractModel |
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| 21 | { |
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| 22 | /** |
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| 23 | * Instance manager |
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| 24 | * |
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| 25 | * @var Notifications |
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| 26 | */ |
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| 27 | protected static $_instance; |
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| 28 | |||
| 29 | /** |
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| 30 | * List of notifications to send |
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| 31 | * |
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| 32 | * @var \Notifications_Task[] |
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| 33 | */ |
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| 34 | protected $_to_send; |
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| 35 | |||
| 36 | /** |
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| 37 | * Available notification frequencies |
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| 38 | * |
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| 39 | * @var string[] |
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| 40 | */ |
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| 41 | protected $_notification_frequencies; |
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| 42 | |||
| 43 | /** |
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| 44 | * Available notification frequencies |
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| 45 | * |
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| 46 | * @var array |
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| 47 | */ |
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| 48 | protected $_notifiers; |
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| 49 | /** |
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| 50 | * Notifications constructor. |
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| 51 | * |
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| 52 | * Registers the known notifications to the system, allows for integration to add more |
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| 53 | * |
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| 54 | * @param \Database $db |
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| 55 | * @throws Elk_Exception |
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| 56 | */ |
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| 57 | public function __construct($db) |
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| 69 | |||
| 70 | /** |
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| 71 | * We hax a new notification to send out! |
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| 72 | * |
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| 73 | * @param \Notifications_Task $task |
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| 74 | */ |
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| 75 | 2 | public function add(\Notifications_Task $task) |
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| 79 | |||
| 80 | /** |
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| 81 | * Time to notify our beloved members! YAY! |
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| 82 | */ |
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| 83 | 2 | public function send() |
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| 105 | |||
| 106 | /** |
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| 107 | * Function to register any new notification method. |
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| 108 | * |
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| 109 | * @param int $id This shall be a unique integer representing the notification method. |
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| 110 | * |
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| 111 | * <b>WARNING for addons developers</b>: note that this has to be **unique** across |
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| 112 | * addons, so if you develop an addon that extends notifications, please verify this id |
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| 113 | * has not been "taken" by someone else! 1-4 are reserved system notifications. |
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| 114 | * @param int $key The string name identifying the notification method |
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| 115 | * |
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| 116 | * - _send_email |
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| 117 | * - _send_daily_email |
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| 118 | * - _send_weekly_email |
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| 119 | * @param mixed|mixed[] $callback A callable function/array/whatever that will take care |
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| 120 | * of sending the notification |
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| 121 | * @param null|string[] $lang_data For the moment an array containing at least: |
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| 122 | * |
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| 123 | * - 'subject' => 'something' |
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| 124 | * - 'body' => 'something_else' |
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| 125 | * - 'suffix' => true/false |
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| 126 | * |
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| 127 | * Used to identify the strings for the subject and body respectively of the notification. |
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| 128 | * @throws Elk_Exception |
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| 129 | */ |
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| 130 | public function register($id, $key, $callback, $lang_data = null) |
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| 146 | |||
| 147 | /** |
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| 148 | * Returns the notifications in the system, daily, weekly, etc |
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| 149 | * |
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| 150 | * @return string[] |
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| 151 | */ |
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| 152 | 1 | public function getNotifiers() |
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| 156 | |||
| 157 | /** |
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| 158 | * Process a certain task in order to send out the notifications. |
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| 159 | * |
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| 160 | * @param \Notifications_Task $task |
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| 161 | */ |
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| 162 | 2 | protected function _send_task(\Notifications_Task $task) |
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| 193 | |||
| 194 | /** |
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| 195 | * Inserts a new mention in the database (those that appear in the mentions area). |
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| 196 | * |
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| 197 | * @param \ElkArte\sources\subs\MentionType\Mention_Type_Interface $obj |
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| 198 | * @param \Notifications_Task $task |
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| 199 | * @param mixed[] $bodies |
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| 200 | */ |
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| 201 | 2 | protected function _send_notification(\ElkArte\sources\subs\MentionType\Mention_Type_Interface $obj, \Notifications_Task $task, $bodies) |
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| 216 | |||
| 217 | /** |
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| 218 | * Sends an immediate email notification. |
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| 219 | * |
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| 220 | * @param \ElkArte\sources\subs\MentionType\Mention_Type_Interface $obj |
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| 221 | * @param \Notifications_Task $task |
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| 222 | * @param mixed[] $bodies |
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| 223 | */ |
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| 224 | protected function _send_email(\ElkArte\sources\subs\MentionType\Mention_Type_Interface $obj, \Notifications_Task $task, $bodies) |
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| 232 | |||
| 233 | /** |
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| 234 | * Stores data in the database to send a daily digest. |
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| 235 | * |
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| 236 | * @param \ElkArte\sources\subs\MentionType\Mention_Type_Interface $obj |
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| 237 | * @param \Notifications_Task $task |
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| 238 | * @param mixed[] $bodies |
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| 239 | */ |
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| 240 | View Code Duplication | protected function _send_daily_email(\ElkArte\sources\subs\MentionType\Mention_Type_Interface $obj, \Notifications_Task $task, $bodies) |
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| 253 | |||
| 254 | /** |
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| 255 | * Stores data in the database to send a weekly digest. |
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| 256 | * |
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| 257 | * @param \ElkArte\sources\subs\MentionType\Mention_Type_Interface $obj |
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| 258 | * @param \Notifications_Task $task |
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| 259 | * @param mixed[] $bodies |
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| 260 | */ |
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| 261 | View Code Duplication | protected function _send_weekly_email(\ElkArte\sources\subs\MentionType\Mention_Type_Interface $obj, \Notifications_Task $task, $bodies) |
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| 274 | |||
| 275 | /** |
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| 276 | * Do the insert into the database for daily and weekly digests. |
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| 277 | * |
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| 278 | * @param mixed[] $insert_array |
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| 279 | */ |
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| 280 | protected function _insert_delayed($insert_array) |
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| 295 | |||
| 296 | /** |
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| 297 | * Loads from the database the notification preferences for a certain type |
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| 298 | * of mention for a bunch of members. |
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| 299 | * |
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| 300 | * @param string[] $notification_frequencies |
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| 301 | * @param string $notification_type |
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| 302 | * @param int[] $members |
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| 303 | */ |
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| 304 | 2 | protected function _getNotificationPreferences($notification_frequencies, $notification_type, $members) |
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| 353 | |||
| 354 | /** |
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| 355 | * Singleton... until we have something better. |
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| 356 | * |
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| 357 | * @return Notifications |
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| 358 | */ |
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| 359 | 3 | public static function instance() |
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| 368 | } |
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| 369 |
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: