Complex classes like Message 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 Message, and based on these observations, apply Extract Interface, too.
1 | <?php |
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8 | class Message extends AbstractEntity |
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9 | { |
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10 | const ENTITY_TYPE = 'Message'; |
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11 | |||
12 | protected $messageType = self::ENTITY_TYPE; |
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13 | |||
14 | protected $message_id; |
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15 | |||
16 | /** @var User $from */ |
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17 | protected $from; |
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18 | |||
19 | protected $date; |
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20 | |||
21 | /** @var Chat $chat */ |
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22 | protected $chat; |
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23 | |||
24 | /** @var User $forward_from */ |
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25 | protected $forward_from; |
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26 | |||
27 | protected $forward_date; |
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28 | |||
29 | /** @var Message $reply_to_message */ |
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30 | protected $reply_to_message; |
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31 | |||
32 | protected $text; |
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33 | |||
34 | /** @var MessageEntityArray */ |
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35 | protected $entities; |
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36 | |||
37 | /** @var Audio $audio */ |
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38 | protected $audio; |
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39 | |||
40 | /** @var Document $document */ |
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41 | protected $document; |
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42 | |||
43 | /** @var PhotoSizeArray $photo */ |
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44 | protected $photo; |
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45 | |||
46 | /** @var Sticker $sticker */ |
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47 | protected $sticker; |
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48 | |||
49 | /** @var Video $video */ |
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50 | protected $video; |
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51 | |||
52 | /** @var Voice $voice */ |
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53 | protected $voice; |
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54 | |||
55 | protected $caption; |
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56 | |||
57 | /** @var Contact $contact */ |
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58 | protected $contact; |
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59 | |||
60 | /** @var Location $location */ |
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61 | protected $location; |
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62 | |||
63 | /** @var User $new_chat_participant */ |
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64 | protected $new_chat_participant; |
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65 | |||
66 | /** @var User $left_chat_participant */ |
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67 | protected $left_chat_participant; |
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68 | |||
69 | protected $new_chat_title; |
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70 | |||
71 | /** @var PhotoSize[] $new_chat_photo */ |
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72 | protected $new_chat_photo; |
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73 | |||
74 | protected $delete_chat_photo; |
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75 | |||
76 | protected $group_chat_created; |
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77 | |||
78 | protected $supergroup_chat_created; |
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79 | |||
80 | protected $channel_chat_created; |
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81 | |||
82 | protected $migrate_to_chat_id; |
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83 | |||
84 | protected $migrate_from_chat_id; |
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85 | |||
86 | protected $pinned_message; |
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87 | |||
88 | protected $builtInEntities = [ |
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89 | 'from' => User::class, |
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90 | 'chat' => Chat::class, |
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91 | 'location' => Location::class, |
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92 | 'document' => Document::class, |
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93 | 'sticker' => Sticker::class, |
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94 | 'video' => Video::class, |
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95 | 'voice' => Voice::class, |
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96 | 'contact' => Contact::class, |
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97 | 'audio' => Audio::class, |
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98 | 'photo' => PhotoSizeArray::class, |
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99 | 'entities' => MessageEntityArray::class |
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100 | ]; |
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101 | |||
102 | public function __construct(array $data) |
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103 | { |
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104 | $data = $data['message'] ?? $data; |
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105 | |||
106 | parent::__construct($data); |
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107 | } |
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108 | |||
109 | /** |
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110 | * @return null |
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111 | */ |
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112 | public function getMessageId() |
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116 | |||
117 | /** |
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118 | * @return User |
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119 | */ |
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120 | public function getFrom() |
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124 | |||
125 | /** |
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126 | * @return null |
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127 | */ |
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128 | public function getChatId() |
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136 | |||
137 | /** |
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138 | * @return null |
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139 | */ |
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140 | public function getDate() |
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144 | |||
145 | /** |
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146 | * @param mixed $text |
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147 | */ |
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148 | public function setText($text) |
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152 | |||
153 | /** |
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154 | * @return null |
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155 | */ |
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156 | public function getText() |
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160 | |||
161 | /** |
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162 | * @return array |
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163 | */ |
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164 | public function getEntities() |
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168 | |||
169 | /** |
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170 | * @param array $entities |
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171 | */ |
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172 | public function setEntities($entities) |
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188 | |||
189 | /** |
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190 | * @return Chat |
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191 | */ |
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192 | public function getChat() |
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196 | |||
197 | /** |
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198 | * @return string |
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199 | */ |
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200 | public function getMessageType() |
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204 | |||
205 | /** |
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206 | * @return Location |
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207 | */ |
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208 | public function getLocation() |
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212 | |||
213 | /** |
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214 | * @param Location $location |
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215 | */ |
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216 | protected function setLocation($location) |
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221 | |||
222 | /** |
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223 | * @return Document |
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224 | */ |
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225 | public function getDocument() |
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229 | |||
230 | /** |
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231 | * @param Document $document |
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232 | */ |
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233 | public function setDocument($document) |
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238 | |||
239 | /** |
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240 | * @return Sticker |
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241 | */ |
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242 | public function getSticker() |
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246 | |||
247 | /** |
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248 | * @param Sticker $sticker |
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249 | */ |
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250 | public function setSticker($sticker) |
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255 | |||
256 | /** |
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257 | * @return Video |
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258 | */ |
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259 | public function getVideo() |
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263 | |||
264 | /** |
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265 | * @param Video $video |
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266 | */ |
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267 | public function setVideo($video) |
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272 | |||
273 | /** |
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274 | * @return Voice |
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275 | */ |
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276 | public function getVoice() |
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280 | |||
281 | /** |
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282 | * @param Voice $voice |
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283 | */ |
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284 | public function setVoice($voice) |
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289 | |||
290 | /** |
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291 | * @return Contact |
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292 | */ |
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293 | public function getContact() |
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297 | |||
298 | /** |
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299 | * @param Contact $contact |
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300 | */ |
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301 | public function setContact($contact) |
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306 | |||
307 | /** |
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308 | * @return Audio |
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309 | */ |
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310 | public function getAudio() |
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314 | |||
315 | /** |
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316 | * @param Audio $audio |
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317 | */ |
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318 | public function setAudio($audio) |
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323 | |||
324 | /** |
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325 | * @return PhotoSizeArray |
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326 | */ |
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327 | public function getPhoto() |
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331 | |||
332 | /** |
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333 | * @param PhotoSizeArray $photo |
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334 | */ |
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335 | public function setPhoto($photo) |
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340 | |||
341 | protected function setMessageType($object) |
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349 | |||
350 | public function getMessageTypeEntity() |
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386 | } |
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387 |
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()
can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.