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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20 | trait ModelByString |
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21 | { |
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22 | |||
23 | use Model; |
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24 | |||
25 | /** |
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26 | * @var BaseModel[] |
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27 | */ |
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28 | protected $_cacheByString = []; |
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29 | |||
30 | /** |
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31 | * @return string |
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32 | */ |
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33 | abstract protected function stringProperty(): string; |
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34 | |||
35 | /** |
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36 | * @param Record $record |
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37 | * @param string|null $toScenario |
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38 | * @return BaseModel |
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39 | */ |
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40 | abstract protected function findByRecord(Record $record, string $toScenario = null): BaseModel; |
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41 | |||
42 | /** |
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43 | * @param array $config |
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44 | * @param string|null $toScenario |
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45 | * @return BaseModel |
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46 | */ |
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47 | abstract public function create($config = [], string $toScenario = null): BaseModel; |
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48 | |||
49 | /** |
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50 | * @return string |
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51 | */ |
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52 | protected function recordStringProperty(): string |
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56 | |||
57 | /** |
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58 | * @param BaseModel $model |
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59 | * @return string |
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60 | */ |
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61 | protected function stringValue(BaseModel $model): string |
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69 | |||
70 | /******************************************* |
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71 | * FIND/GET BY STRING |
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72 | *******************************************/ |
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73 | |||
74 | /** |
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75 | * @param string $string |
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76 | * @param string|null $toScenario |
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77 | * @return BaseModel|null |
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78 | */ |
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79 | public function findByString(string $string, string $toScenario = null) |
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103 | |||
104 | /** |
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105 | * @param string $string |
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106 | * @param string|null $toScenario |
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107 | * @return BaseModel|null |
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108 | * @throws ModelNotFoundException |
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109 | */ |
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110 | public function getByString(string $string, string $toScenario = null): BaseModel |
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122 | |||
123 | /** |
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124 | * @param string $string |
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125 | * @param string|null $toScenario |
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126 | * @return BaseModel|null |
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127 | */ |
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128 | View Code Duplication | public function freshFindByString(string $string, string $toScenario = null) |
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141 | |||
142 | /** |
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143 | * @param string $string |
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144 | * @param string|null $toScenario |
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145 | * @return BaseModel |
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146 | * @throws ModelNotFoundException |
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147 | */ |
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148 | View Code Duplication | public function freshGetByString(string $string, string $toScenario = null): BaseModel |
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160 | |||
161 | /******************************************* |
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162 | * CACHE |
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163 | *******************************************/ |
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164 | |||
165 | /** |
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166 | * Find an existing cache by string |
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167 | * |
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168 | * @param string $string |
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169 | * @return null |
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170 | */ |
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171 | public function findCacheByString(string $string) |
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182 | |||
183 | /** |
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184 | * Identify whether in cache by string |
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185 | * |
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186 | * @param string $string |
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187 | * @return bool |
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188 | */ |
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189 | private function isCachedByString(string $string): bool |
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193 | |||
194 | |||
195 | /** |
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196 | * @param BaseModel $model |
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197 | * @return static |
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198 | */ |
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199 | View Code Duplication | protected function cacheByString(BaseModel $model) |
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219 | |||
220 | /** |
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221 | * @param Record $record |
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222 | * @return BaseModel|null |
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223 | */ |
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224 | View Code Duplication | protected function findCacheByRecordByString(Record $record) |
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238 | |||
239 | /******************************************* |
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240 | * RECORD BY STRING |
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241 | *******************************************/ |
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242 | |||
243 | /** |
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244 | * @param string $string |
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245 | * @param string|null $toScenario |
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246 | * @return Record|null |
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247 | */ |
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248 | public function findRecordByString(string $string, string $toScenario = null) |
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259 | |||
260 | /** |
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261 | * @param string $string |
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262 | * @param string|null $toScenario |
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263 | * @throws RecordNotFoundException |
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264 | * @return Record|null |
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265 | */ |
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266 | public function getRecordByString(string $string, string $toScenario = null) |
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278 | |||
279 | |||
280 | /** |
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281 | * @param BaseModel $model |
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282 | * @param bool $mirrorScenario |
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283 | * @return Record |
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284 | */ |
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285 | View Code Duplication | protected function toRecordByString(BaseModel $model, bool $mirrorScenario = true): Record |
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299 | |||
300 | /******************************************* |
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301 | * EXCEPTIONS |
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302 | *******************************************/ |
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303 | |||
304 | /** |
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305 | * @param string|null $string |
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306 | * @throws ModelNotFoundException |
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307 | */ |
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308 | protected function notFoundByStringException(string $string = null) |
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319 | |||
320 | /** |
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321 | * @param string|null $string |
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322 | * @throws RecordNotFoundException |
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323 | */ |
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324 | protected function notFoundRecordByStringException(string $string = null) |
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335 | |||
336 | } |
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337 |
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.