Complex classes like Post 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 Post, and based on these observations, apply Extract Interface, too.
1 | <?php |
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24 | abstract class Post implements PostInterface |
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25 | { |
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26 | /** |
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27 | * @var string |
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28 | */ |
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29 | protected $title; |
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30 | |||
31 | /** |
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32 | * @var string |
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33 | */ |
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34 | protected $slug; |
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35 | |||
36 | /** |
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37 | * @var string |
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38 | */ |
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39 | protected $abstract; |
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40 | |||
41 | /** |
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42 | * @var string |
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43 | */ |
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44 | protected $content; |
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45 | |||
46 | /** |
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47 | * @var string |
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48 | */ |
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49 | protected $rawContent; |
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50 | |||
51 | /** |
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52 | * @var string |
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53 | */ |
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54 | protected $contentFormatter; |
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55 | |||
56 | /** |
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57 | * @var Collection|TagInterface[] |
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58 | */ |
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59 | protected $tags; |
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60 | |||
61 | /** |
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62 | * @var Collection|CommentInterface[] |
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63 | */ |
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64 | protected $comments; |
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65 | |||
66 | /** |
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67 | * @var bool |
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68 | */ |
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69 | protected $enabled; |
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70 | |||
71 | /** |
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72 | * @var \DateTime|null |
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73 | */ |
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74 | protected $publicationDateStart; |
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75 | |||
76 | /** |
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77 | * @var \DateTime |
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78 | */ |
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79 | protected $createdAt; |
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80 | |||
81 | /** |
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82 | * @var \DateTime |
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83 | */ |
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84 | protected $updatedAt; |
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85 | |||
86 | /** |
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87 | * @var bool |
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88 | */ |
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89 | protected $commentsEnabled = true; |
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90 | |||
91 | /** |
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92 | * @var \DateTime|null |
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93 | */ |
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94 | protected $commentsCloseAt; |
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95 | |||
96 | /** |
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97 | * @var int |
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98 | */ |
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99 | protected $commentsDefaultStatus; |
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100 | |||
101 | /** |
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102 | * @var int |
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103 | */ |
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104 | protected $commentsCount = 0; |
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105 | |||
106 | /** |
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107 | * @var UserInterface|null |
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108 | */ |
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109 | protected $author; |
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110 | |||
111 | /** |
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112 | * @var MediaInterface|null |
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113 | */ |
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114 | protected $image; |
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115 | |||
116 | /** |
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117 | * @var CollectionInterface|null |
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118 | */ |
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119 | protected $collection; |
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120 | |||
121 | public function __construct() |
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125 | |||
126 | public function __toString() |
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130 | |||
131 | public function setTitle($title): void |
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137 | |||
138 | public function getTitle() |
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142 | |||
143 | public function setAbstract($abstract): void |
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147 | |||
148 | public function getAbstract() |
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152 | |||
153 | public function setContent($content): void |
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157 | |||
158 | public function getContent() |
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162 | |||
163 | public function setEnabled($enabled): void |
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167 | |||
168 | public function getEnabled() |
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172 | |||
173 | public function setSlug($slug): void |
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177 | |||
178 | public function getSlug() |
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182 | |||
183 | public function setPublicationDateStart(?\DateTime $publicationDateStart = null): void |
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187 | |||
188 | public function getPublicationDateStart() |
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192 | |||
193 | public function setCreatedAt(?\DateTime $createdAt = null): void |
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197 | |||
198 | public function getCreatedAt() |
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202 | |||
203 | public function setUpdatedAt(?\DateTime $updatedAt = null): void |
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207 | |||
208 | public function getUpdatedAt() |
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212 | |||
213 | public function addComments(CommentInterface $comment): void |
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218 | |||
219 | public function setComments($comments): void |
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227 | |||
228 | public function getComments() |
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232 | |||
233 | public function addTags(TagInterface $tags): void |
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237 | |||
238 | public function getTags() |
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242 | |||
243 | public function setTags($tags): void |
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247 | |||
248 | public function prePersist(): void |
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257 | |||
258 | public function preUpdate(): void |
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266 | |||
267 | public function getYear() |
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271 | |||
272 | public function getMonth() |
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276 | |||
277 | public function getDay() |
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281 | |||
282 | public function setCommentsEnabled($commentsEnabled): void |
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286 | |||
287 | public function getCommentsEnabled() |
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291 | |||
292 | public function setCommentsCloseAt(?\DateTime $commentsCloseAt = null): void |
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296 | |||
297 | public function getCommentsCloseAt() |
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301 | |||
302 | public function setCommentsDefaultStatus($commentsDefaultStatus): void |
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306 | |||
307 | public function getCommentsDefaultStatus() |
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311 | |||
312 | public function setCommentsCount($commentsCount): void |
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316 | |||
317 | public function getCommentsCount() |
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321 | |||
322 | public function isCommentable() |
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334 | |||
335 | public function isPublic() |
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343 | |||
344 | public function setAuthor($author): void |
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348 | |||
349 | public function getAuthor() |
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353 | |||
354 | public function setImage($image): void |
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358 | |||
359 | public function getImage() |
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363 | |||
364 | public function setCollection(?CollectionInterface $collection = null): void |
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368 | |||
369 | public function getCollection() |
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373 | |||
374 | /** |
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375 | * @param $contentFormatter |
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376 | */ |
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377 | public function setContentFormatter($contentFormatter): void |
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381 | |||
382 | public function getContentFormatter() |
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386 | |||
387 | public function setRawContent($rawContent): void |
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391 | |||
392 | public function getRawContent() |
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396 | } |
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397 |