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 ClientLocal 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 ClientLocal, and based on these observations, apply Extract Interface, too.
1 | <?php |
||
30 | class ClientLocal extends AbstractClient |
||
31 | { |
||
32 | /** |
||
33 | * @var BaseTableGateway[] |
||
34 | */ |
||
35 | protected $tableGateways = []; |
||
36 | |||
37 | /** |
||
38 | * @var Connection |
||
39 | */ |
||
40 | protected $connection = null; |
||
41 | |||
42 | /** |
||
43 | * ClientLocal constructor. |
||
44 | * |
||
45 | * @param $connection |
||
46 | */ |
||
47 | public function __construct($connection) |
||
51 | |||
52 | /** |
||
53 | * @inheritDoc |
||
54 | */ |
||
55 | public function getTables(array $params = []) |
||
59 | |||
60 | /** |
||
61 | * @inheritDoc |
||
62 | */ |
||
63 | public function getTable($tableName) |
||
67 | |||
68 | /** |
||
69 | * @inheritDoc |
||
70 | */ |
||
71 | public function getColumns($tableName, array $params = []) |
||
75 | |||
76 | /** |
||
77 | * @inheritDoc |
||
78 | */ |
||
79 | public function getColumn($tableName, $columnName) |
||
83 | |||
84 | /** |
||
85 | * @inheritDoc |
||
86 | */ |
||
87 | public function getEntries($tableName, array $params = []) |
||
93 | |||
94 | /** |
||
95 | * @inheritDoc |
||
96 | */ |
||
97 | public function getEntry($tableName, $id, array $params = []) |
||
104 | |||
105 | /** |
||
106 | * @inheritDoc |
||
107 | */ |
||
108 | public function getUsers(array $params = []) |
||
113 | |||
114 | /** |
||
115 | * @inheritDoc |
||
116 | */ |
||
117 | public function getUser($id, array $params = []) |
||
121 | |||
122 | /** |
||
123 | * @inheritDoc |
||
124 | */ |
||
125 | public function getGroups(array $params = []) |
||
129 | |||
130 | /** |
||
131 | * @inheritDoc |
||
132 | */ |
||
133 | public function getGroup($id, array $params = []) |
||
137 | |||
138 | /** |
||
139 | * @inheritDoc |
||
140 | */ |
||
141 | public function getGroupPrivileges($groupID) |
||
149 | |||
150 | /** |
||
151 | * @inheritDoc |
||
152 | */ |
||
153 | public function getFiles(array $params = []) |
||
157 | |||
158 | /** |
||
159 | * @inheritDoc |
||
160 | */ |
||
161 | public function getFile($id, array $params = []) |
||
165 | |||
166 | /** |
||
167 | * @inheritDoc |
||
168 | */ |
||
169 | public function getSettings() |
||
173 | |||
174 | /** |
||
175 | * @inheritDoc |
||
176 | */ |
||
177 | public function getSettingsByCollection($collectionName) |
||
185 | |||
186 | /** |
||
187 | * @inheritDoc |
||
188 | */ |
||
189 | public function getMessages($userId) |
||
196 | |||
197 | /** |
||
198 | * @inheritDoc |
||
199 | */ |
||
200 | View Code Duplication | public function createEntry($tableName, array $data) |
|
215 | |||
216 | /** |
||
217 | * @inheritDoc |
||
218 | */ |
||
219 | View Code Duplication | public function updateEntry($tableName, $id, array $data) |
|
234 | |||
235 | /** |
||
236 | * @inheritDoc |
||
237 | */ |
||
238 | public function deleteEntry($tableName, $ids) |
||
251 | |||
252 | /** |
||
253 | * @inheritDoc |
||
254 | */ |
||
255 | public function createUser(array $data) |
||
259 | |||
260 | /** |
||
261 | * @inheritDoc |
||
262 | */ |
||
263 | public function updateUser($id, array $data) |
||
267 | |||
268 | /** |
||
269 | * @inheritDoc |
||
270 | */ |
||
271 | public function deleteUser($ids) |
||
275 | |||
276 | /** |
||
277 | * @inheritDoc |
||
278 | */ |
||
279 | public function createFile(File $file) |
||
285 | |||
286 | /** |
||
287 | * @inheritDoc |
||
288 | */ |
||
289 | public function updateFile($id, array $data) |
||
293 | |||
294 | /** |
||
295 | * @inheritDoc |
||
296 | */ |
||
297 | public function deleteFile($ids) |
||
301 | |||
302 | public function createPreferences($data) |
||
313 | |||
314 | /** |
||
315 | * @inheritdoc |
||
316 | */ |
||
317 | public function createBookmark($data) |
||
337 | |||
338 | /** |
||
339 | * @inheritdoc |
||
340 | */ |
||
341 | public function createColumn($data) |
||
351 | |||
352 | /** |
||
353 | * @inheritdoc |
||
354 | */ |
||
355 | public function createGroup(array $data) |
||
359 | |||
360 | /** |
||
361 | * @inheritdoc |
||
362 | */ |
||
363 | public function createMessage(array $data) |
||
415 | |||
416 | /** |
||
417 | * @inheritdoc |
||
418 | */ |
||
419 | public function sendMessage(array $data) |
||
423 | |||
424 | public function createPrivileges(array $data) |
||
440 | |||
441 | /** |
||
442 | * Get a table gateway for the given table name |
||
443 | * |
||
444 | * @param $tableName |
||
445 | * |
||
446 | * @return RelationalTableGateway |
||
447 | */ |
||
448 | protected function getTableGateway($tableName) |
||
457 | } |
||
458 |