SimpleMachines /
SMF2.1
| Total Complexity | 56 |
| Total Lines | 428 |
| Duplicated Lines | 0 % |
| Changes | 3 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Mentions 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.
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 Mentions, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 19 | class Mentions |
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| 20 | { |
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| 21 | /** |
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| 22 | * @var string The character used for mentioning users |
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| 23 | */ |
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| 24 | protected static $char = '@'; |
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| 25 | |||
| 26 | /** |
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| 27 | * Returns mentions for a specific content |
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| 28 | * |
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| 29 | * @static |
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| 30 | * @access public |
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| 31 | * @param string $content_type The content type |
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| 32 | * @param int $content_id The ID of the desired content |
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| 33 | * @param array $members Whether to limit to a specific set of members |
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| 34 | * @return array An array of arrays containing info about each member mentioned |
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| 35 | */ |
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| 36 | public static function getMentionsByContent($content_type, $content_id, array $members = array()) |
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| 71 | } |
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| 72 | |||
| 73 | /** |
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| 74 | * Inserts mentioned members |
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| 75 | * |
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| 76 | * @static |
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| 77 | * @access public |
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| 78 | * @param string $content_type The content type |
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| 79 | * @param int $content_id The ID of the specified content |
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| 80 | * @param array $members An array of members who have been mentioned |
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| 81 | * @param int $id_member The ID of the member who mentioned them |
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| 82 | */ |
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| 83 | public static function insertMentions($content_type, $content_id, array $members, $id_member) |
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| 95 | ); |
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| 96 | } |
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| 97 | |||
| 98 | /** |
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| 99 | * Updates list of mentioned members. |
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| 100 | * |
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| 101 | * Intended for use when a post is modified. |
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| 102 | * |
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| 103 | * @static |
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| 104 | * @access public |
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| 105 | * @param string $content_type The content type |
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| 106 | * @param int $content_id The ID of the specified content |
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| 107 | * @param array $members An array of members who have been mentioned |
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| 108 | * @param int $id_member The ID of the member who mentioned them |
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| 109 | * @return array An array of unchanged, removed, and added member IDs. |
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| 110 | */ |
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| 111 | public static function modifyMentions($content_type, $content_id, array $members, $id_member) |
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| 112 | { |
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| 113 | global $smcFunc; |
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| 114 | |||
| 115 | $existing_members = self::getMentionsByContent($content_type, $content_id); |
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| 116 | |||
| 117 | $members_to_remove = array_diff_key($existing_members, $members); |
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| 118 | $members_to_insert = array_diff_key($members, $existing_members); |
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| 119 | $members_unchanged = array_diff_key($existing_members, $members_to_remove, $members_to_insert); |
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| 120 | |||
| 121 | // Delete mentions from the table that have been deleted in the content. |
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| 122 | if (!empty($members_to_remove)) |
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| 123 | $smcFunc['db_query']('', ' |
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| 124 | DELETE FROM {db_prefix}mentions |
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| 125 | WHERE content_type = {string:type} |
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| 126 | AND content_id = {int:id} |
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| 127 | AND id_mentioned IN ({array_int:members})', |
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| 128 | array( |
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| 129 | 'type' => $content_type, |
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| 130 | 'id' => $content_id, |
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| 131 | 'members' => array_keys($members_to_remove), |
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| 132 | ) |
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| 133 | ); |
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| 134 | |||
| 135 | // Insert any new mentions. |
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| 136 | if (!empty($members_to_insert)) |
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| 137 | self::insertMentions($content_type, $content_id, $members_to_insert, $id_member); |
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| 138 | |||
| 139 | return array( |
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| 140 | 'unchanged' => $members_unchanged, |
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| 141 | 'removed' => $members_to_remove, |
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| 142 | 'added' => $members_to_insert, |
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| 143 | ); |
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| 144 | } |
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| 145 | |||
| 146 | /** |
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| 147 | * Gets appropriate mentions replaced in the body |
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| 148 | * |
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| 149 | * @static |
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| 150 | * @access public |
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| 151 | * @param string $body The text to look for mentions in |
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| 152 | * @param array $members An array of arrays containing info about members (each should have 'id' and 'member') |
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| 153 | * @return string The body with mentions replaced |
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| 154 | */ |
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| 155 | public static function getBody($body, array $members) |
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| 156 | { |
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| 157 | if (empty($body)) |
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| 158 | return $body; |
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| 159 | |||
| 160 | foreach ($members as $member) |
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| 161 | $body = str_ireplace(static::$char . $member['real_name'], '[member=' . $member['id'] . ']' . $member['real_name'] . '[/member]', $body); |
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| 162 | |||
| 163 | return $body; |
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| 164 | } |
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| 165 | |||
| 166 | /** |
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| 167 | * Takes a piece of text and finds all the mentioned members in it |
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| 168 | * |
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| 169 | * @static |
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| 170 | * @access public |
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| 171 | * @param string $body The body to get mentions from |
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| 172 | * @return array An array of arrays containing members who were mentioned (each has 'id_member' and 'real_name') |
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| 173 | */ |
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| 174 | public static function getMentionedMembers($body) |
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| 220 | } |
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| 221 | |||
| 222 | /** |
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| 223 | * Parses a body in order to see if there are any mentions, returns possible mention names |
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| 224 | * |
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| 225 | * Names are tagged by "@<username>" format in post, but they can contain |
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| 226 | * any type of character up to 60 characters length. So we extract, starting from @ |
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| 227 | * up to 60 characters in length (or if we encounter a line break) and make |
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| 228 | * several combination of strings after splitting it by anything that's not a word and join |
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| 229 | * by having the first word, first and second word, first, second and third word and so on and |
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| 230 | * search every name. |
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| 231 | * |
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| 232 | * One potential problem with this is something like "@Admin Space" can match |
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| 233 | * "Admin Space" as well as "Admin", so we sort by length in descending order. |
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| 234 | * One disadvantage of this is that we can only match by one column, hence I've chosen |
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| 235 | * real_name since it's the most obvious. |
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| 236 | * |
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| 237 | * If there's an @ symbol within the name, it is counted in the ongoing string and a new |
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| 238 | * combination string is started from it as well in order to account for all the possibilities. |
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| 239 | * This makes the @ symbol to not be required to be escaped |
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| 240 | * |
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| 241 | * @static |
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| 242 | * @access protected |
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| 243 | * @param string $body The text to look for mentions in |
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| 244 | * @return array An array of names of members who have been mentioned |
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| 245 | */ |
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| 246 | protected static function getPossibleMentions($body) |
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| 317 | } |
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| 318 | |||
| 319 | /** |
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| 320 | * Like getPossibleMentions(), but for `[member=1]name[/member]` format. |
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| 321 | * |
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| 322 | * @static |
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| 323 | * @access public |
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| 324 | * @param string $body The text to look for mentions in. |
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| 325 | * @param array $members An array of arrays containing info about members (each should have 'id' and 'member'). |
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| 326 | * @return array An array of arrays containing info about members that are in fact mentioned in the body. |
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| 327 | */ |
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| 328 | public static function getExistingMentions($body) |
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| 341 | } |
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| 342 | |||
| 343 | /** |
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| 344 | * Verifies that members really are mentioned in the text. |
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| 345 | * |
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| 346 | * This function assumes the incoming text has already been processed by |
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| 347 | * the Mentions::getBody() function. |
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| 348 | * |
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| 349 | * @static |
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| 350 | * @access public |
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| 351 | * @param string $body The text to look for mentions in. |
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| 352 | * @param array $members An array of arrays containing info about members (each should have 'id' and 'member'). |
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| 353 | * @return array An array of arrays containing info about members that are in fact mentioned in the body. |
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| 354 | */ |
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| 355 | public static function verifyMentionedMembers($body, array $members) |
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| 356 | { |
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| 357 | if (empty($body)) |
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| 358 | return array(); |
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| 359 | |||
| 360 | // Don't include mentions inside quotations. |
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| 361 | $body = preg_replace('~\[quote[^\]]*\](?' . '>(?' . '>[^\[]|\[(?!/?quote[^\]]*\]))|(?0))*\[/quote\]~', '', $body); |
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| 362 | |||
| 363 | foreach ($members as $member) |
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| 364 | { |
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| 365 | if (strpos($body, '[member=' . $member['id'] . ']' . $member['real_name'] . '[/member]') === false) |
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| 366 | unset($members[$member['id']]); |
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| 367 | } |
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| 368 | |||
| 369 | return $members; |
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| 370 | } |
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| 371 | |||
| 372 | /** |
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| 373 | * Retrieves info about the authors of posts quoted in a block of text. |
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| 374 | * |
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| 375 | * @static |
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| 376 | * @access public |
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| 377 | * @param string $body A block of text, such as the body of a post. |
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| 378 | * @param int $poster_id The member ID of the author of the text. |
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| 379 | * @return array Info about any members who were quoted. |
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| 380 | */ |
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| 381 | public static function getQuotedMembers($body, $poster_id) |
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| 447 | } |
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| 448 | |||
| 451 | ?> |
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