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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23 | class ContentHandler extends AbstractHandler implements ContentHandlerInterface |
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24 | { |
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25 | const ALL_TRANSLATIONS_KEY = '0'; |
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26 | |||
27 | /** |
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28 | * {@inheritdoc} |
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29 | */ |
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30 | public function create(CreateStruct $struct) |
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31 | { |
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32 | // Cached on demand when published or loaded |
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33 | $this->logger->logCall(__METHOD__, array('struct' => $struct)); |
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34 | |||
35 | return $this->persistenceHandler->contentHandler()->create($struct); |
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36 | } |
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37 | |||
38 | /** |
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39 | * {@inheritdoc} |
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40 | */ |
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41 | public function createDraftFromVersion($contentId, $srcVersion, $userId) |
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42 | { |
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43 | $this->logger->logCall(__METHOD__, array('content' => $contentId, 'version' => $srcVersion, 'user' => $userId)); |
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44 | |||
45 | return $this->persistenceHandler->contentHandler()->createDraftFromVersion($contentId, $srcVersion, $userId); |
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46 | } |
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47 | |||
48 | /** |
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49 | * {@inheritdoc} |
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50 | */ |
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51 | public function copy($contentId, $versionNo = null) |
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52 | { |
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53 | $this->logger->logCall(__METHOD__, array('content' => $contentId, 'version' => $versionNo)); |
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54 | |||
55 | return $this->persistenceHandler->contentHandler()->copy($contentId, $versionNo); |
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56 | } |
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57 | |||
58 | /** |
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59 | * {@inheritdoc} |
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60 | */ |
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61 | public function load($contentId, $version, array $translations = null) |
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62 | { |
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63 | $translationsKey = empty($translations) ? self::ALL_TRANSLATIONS_KEY : implode('|', $translations); |
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64 | $cache = $this->cache->getItem('content', $contentId, $version, $translationsKey); |
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65 | $content = $cache->get(); |
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66 | View Code Duplication | if ($cache->isMiss()) { |
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67 | $this->logger->logCall(__METHOD__, array('content' => $contentId, 'version' => $version, 'translations' => $translations)); |
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68 | $content = $this->persistenceHandler->contentHandler()->load($contentId, $version, $translations); |
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69 | $cache->set($content)->save(); |
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70 | } |
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71 | |||
72 | return $content; |
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73 | } |
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74 | |||
75 | /** |
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76 | * {@inheritdoc} |
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77 | */ |
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78 | View Code Duplication | public function loadContentInfo($contentId) |
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79 | { |
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80 | $cache = $this->cache->getItem('content', 'info', $contentId); |
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81 | $contentInfo = $cache->get(); |
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82 | if ($cache->isMiss()) { |
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83 | $this->logger->logCall(__METHOD__, array('content' => $contentId)); |
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84 | $cache->set($contentInfo = $this->persistenceHandler->contentHandler()->loadContentInfo($contentId))->save(); |
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85 | } |
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86 | |||
87 | return $contentInfo; |
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88 | } |
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89 | |||
90 | /** |
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91 | * {@inheritdoc} |
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92 | */ |
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93 | View Code Duplication | public function loadContentInfoByRemoteId($remoteId) |
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94 | { |
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95 | $cache = $this->cache->getItem('content', 'info', 'remoteId', $remoteId); |
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96 | $contentInfo = $cache->get(); |
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97 | if ($cache->isMiss()) { |
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98 | $this->logger->logCall(__METHOD__, array('content' => $remoteId)); |
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99 | $cache->set($contentInfo = $this->persistenceHandler->contentHandler()->loadContentInfoByRemoteId($remoteId))->save(); |
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100 | } |
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101 | |||
102 | return $contentInfo; |
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103 | } |
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104 | |||
105 | /** |
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106 | * {@inheritdoc} |
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107 | */ |
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108 | public function loadVersionInfo($contentId, $versionNo) |
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109 | { |
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110 | $this->logger->logCall(__METHOD__, array('content' => $contentId, 'version' => $versionNo)); |
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111 | |||
112 | return $this->persistenceHandler->contentHandler()->loadVersionInfo($contentId, $versionNo); |
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113 | } |
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114 | |||
115 | /** |
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116 | * {@inheritdoc} |
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117 | */ |
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118 | public function loadDraftsForUser($userId) |
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119 | { |
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120 | $this->logger->logCall(__METHOD__, array('user' => $userId)); |
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121 | |||
122 | return $this->persistenceHandler->contentHandler()->loadDraftsForUser($userId); |
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123 | } |
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124 | |||
125 | /** |
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126 | * {@inheritdoc} |
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127 | */ |
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128 | public function setStatus($contentId, $status, $version) |
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129 | { |
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130 | $this->logger->logCall(__METHOD__, array('content' => $contentId, 'status' => $status, 'version' => $version)); |
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131 | $return = $this->persistenceHandler->contentHandler()->setStatus($contentId, $status, $version); |
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132 | |||
133 | $this->cache->clear('content', $contentId, $version); |
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134 | if ($status === VersionInfo::STATUS_PUBLISHED) { |
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135 | $this->cache->clear('content', 'info', $contentId); |
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136 | $this->cache->clear('content', 'info', 'remoteId'); |
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137 | } |
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138 | |||
139 | return $return; |
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140 | } |
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141 | |||
142 | /** |
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143 | * {@inheritdoc} |
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144 | */ |
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145 | public function updateMetadata($contentId, MetadataUpdateStruct $struct) |
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146 | { |
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147 | $this->logger->logCall(__METHOD__, array('content' => $contentId, 'struct' => $struct)); |
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148 | |||
149 | $contentInfo = $this->persistenceHandler->contentHandler()->updateMetadata($contentId, $struct); |
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150 | |||
151 | $this->cache->clear('content', $contentId, $contentInfo->currentVersionNo); |
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152 | $this->cache->clear('content', 'info', $contentId); |
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153 | |||
154 | if ($struct->remoteId) { |
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155 | // remote id changed |
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156 | $this->cache->clear('content', 'info', 'remoteId'); |
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157 | } else { |
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158 | $this->cache->clear('content', 'info', 'remoteId', $contentInfo->remoteId); |
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159 | } |
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160 | |||
161 | return $contentInfo; |
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162 | } |
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163 | |||
164 | /** |
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165 | * {@inheritdoc} |
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166 | */ |
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167 | public function updateContent($contentId, $versionNo, UpdateStruct $struct) |
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168 | { |
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169 | $this->logger->logCall(__METHOD__, array('content' => $contentId, 'version' => $versionNo, 'struct' => $struct)); |
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170 | $content = $this->persistenceHandler->contentHandler()->updateContent($contentId, $versionNo, $struct); |
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171 | $this->cache->clear('content', $contentId, $versionNo); |
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172 | |||
173 | return $content; |
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174 | } |
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175 | |||
176 | /** |
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177 | * {@inheritdoc} |
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178 | */ |
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179 | public function deleteContent($contentId) |
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208 | |||
209 | /** |
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210 | * {@inheritdoc} |
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211 | */ |
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212 | public function deleteVersion($contentId, $versionNo) |
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224 | |||
225 | /** |
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226 | * {@inheritdoc} |
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227 | */ |
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228 | public function listVersions($contentId, $status = null, $limit = -1) |
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229 | { |
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230 | $this->logger->logCall(__METHOD__, array('content' => $contentId, 'status' => $status)); |
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231 | |||
232 | return $this->persistenceHandler->contentHandler()->listVersions($contentId, $status, $limit); |
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233 | } |
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234 | |||
235 | /** |
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236 | * {@inheritdoc} |
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237 | */ |
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238 | public function addRelation(RelationCreateStruct $relation) |
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244 | |||
245 | /** |
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246 | * {@inheritdoc} |
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247 | */ |
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248 | public function removeRelation($relationId, $type) |
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253 | |||
254 | /** |
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255 | * {@inheritdoc} |
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256 | */ |
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257 | public function loadRelations($sourceContentId, $sourceContentVersionNo = null, $type = null) |
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270 | |||
271 | /** |
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272 | * {@inheritdoc} |
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273 | */ |
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274 | public function loadReverseRelations($destinationContentId, $type = null) |
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280 | |||
281 | /** |
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282 | * {@inheritdoc} |
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283 | */ |
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284 | public function publish($contentId, $versionNo, MetadataUpdateStruct $struct) |
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303 | |||
304 | /** |
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305 | * {@inheritdoc} |
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306 | */ |
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307 | View Code Duplication | public function removeTranslationFromContent($contentId, $languageCode) |
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308 | { |
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309 | $this->logger->logCall( |
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310 | __METHOD__, |
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311 | [ |
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312 | 'contentId' => $contentId, |
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313 | 'languageCode' => $languageCode, |
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314 | ] |
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315 | ); |
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322 | |||
323 | /** |
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324 | * {@inheritdoc} |
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325 | */ |
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326 | public function deleteTranslationFromDraft($contentId, $versionNo, $languageCode) |
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341 | } |
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342 |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.