Complex classes like WhereTrait 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 WhereTrait, and based on these observations, apply Extract Interface, too.
1 | <?php |
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32 | trait WhereTrait |
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33 | { |
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34 | /** |
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35 | * {@inheritDoc} |
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36 | */ |
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37 | public function where( |
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44 | |||
45 | /** |
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46 | * {@inheritDoc} |
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47 | */ |
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48 | public function whereTpl(/*# string */ $template, $col) |
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53 | |||
54 | /** |
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55 | * {@inheritDoc} |
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56 | */ |
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57 | public function orWhereTpl(/*# string */ $template, $col) |
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62 | |||
63 | /** |
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64 | * {@inheritDoc} |
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65 | */ |
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66 | public function whereRaw(/*# string */ $rawString) |
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71 | |||
72 | /** |
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73 | * {@inheritDoc} |
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74 | */ |
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75 | public function orWhereRaw(/*# string */ $rawString) |
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80 | |||
81 | /** |
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82 | * {@inheritDoc} |
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83 | */ |
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84 | public function andWhere( |
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91 | |||
92 | /** |
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93 | * {@inheritDoc} |
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94 | */ |
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95 | public function orWhere( |
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102 | |||
103 | /** |
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104 | * {@inheritDoc} |
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105 | */ |
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106 | public function whereNot( |
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113 | |||
114 | /** |
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115 | * {@inheritDoc} |
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116 | */ |
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117 | public function orWhereNot( |
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124 | |||
125 | /** |
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126 | * {@inheritDoc} |
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127 | */ |
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128 | public function whereIn(/*# string */ $col, $value) |
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132 | |||
133 | /** |
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134 | * {@inheritDoc} |
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135 | */ |
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136 | public function orWhereIn(/*# string */ $col, $value) |
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140 | |||
141 | /** |
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142 | * {@inheritDoc} |
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143 | */ |
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144 | public function whereNotIn(/*# string */ $col, $value) |
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148 | |||
149 | /** |
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150 | * {@inheritDoc} |
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151 | */ |
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152 | public function orWhereNotIn(/*# string */ $col, $value) |
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156 | |||
157 | /** |
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158 | * {@inheritDoc} |
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159 | */ |
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160 | public function whereBetween(/*# string */ $col, $value1, $value2) |
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165 | |||
166 | /** |
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167 | * {@inheritDoc} |
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168 | */ |
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169 | public function orWhereBetween(/*# string */ $col, $value1, $value2) |
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174 | |||
175 | /** |
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176 | * {@inheritDoc} |
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177 | */ |
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178 | public function whereNotBetween(/*# string */ $col, $value1, $value2) |
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183 | |||
184 | /** |
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185 | * {@inheritDoc} |
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186 | */ |
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187 | public function orWhereNotBetween(/*# string */ $col, $value1, $value2) |
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192 | |||
193 | /** |
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194 | * {@inheritDoc} |
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195 | */ |
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196 | public function whereNull(/*# string */ $col) |
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200 | |||
201 | /** |
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202 | * {@inheritDoc} |
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203 | */ |
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204 | public function orWhereNull(/*# string */ $col) |
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208 | |||
209 | /** |
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210 | * {@inheritDoc} |
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211 | */ |
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212 | public function whereNotNull(/*# string */ $col) |
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216 | |||
217 | /** |
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218 | * {@inheritDoc} |
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219 | */ |
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220 | public function orWhereNotNull(/*# string */ $col) |
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224 | |||
225 | /** |
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226 | * WHERE EXISTS |
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227 | * |
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228 | * ```php |
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229 | * // WHERE EXISTS (SELECT `user_id` FROM `users`) |
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230 | * ->whereExists($users->select('user_id')) |
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231 | * ``` |
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232 | * |
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233 | * @param SelectStatementInterface $sel |
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234 | * @return $this |
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235 | * @see WhereInterface::where() |
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236 | * @access public |
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237 | * @api |
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238 | */ |
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239 | public function whereExists(SelectStatementInterface $sel) |
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243 | |||
244 | /** |
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245 | * {@inheritDoc} |
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246 | */ |
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247 | public function orWhereExists(SelectStatementInterface $sel) |
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251 | |||
252 | /** |
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253 | * {@inheritDoc} |
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254 | */ |
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255 | public function whereNotExists(SelectStatementInterface $sel) |
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259 | |||
260 | /** |
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261 | * {@inheritDoc} |
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262 | */ |
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263 | public function orWhereNotExists(SelectStatementInterface $sel) |
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267 | |||
268 | /** |
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269 | * Real where |
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270 | * |
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271 | * @param string|string[]|Template $col col or cols |
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272 | * @param mixed $operator |
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273 | * @param mixed $value |
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274 | * @param string $logicAnd 'AND' |
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275 | * @param string $whereNot 'WHERE NOT' |
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276 | * @param bool $rawMode |
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277 | * @param string $clause 'where' or 'having' |
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278 | * @return $this |
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279 | * @access protected |
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280 | */ |
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281 | protected function realWhere( |
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300 | |||
301 | /** |
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302 | * Fix operator and value |
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303 | * |
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304 | * @param mixed $operator |
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305 | * @param mixed $value |
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306 | * @param bool $rawMode |
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307 | * @access protected |
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308 | */ |
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309 | protected function fixOperatorValue(&$operator, &$value, &$rawMode) |
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319 | |||
320 | /** |
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321 | * @param array $cols |
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322 | * @param string $logicAnd |
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323 | * @param string $whereNot |
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324 | * @param bool $rawMode |
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325 | * @access protected |
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326 | */ |
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327 | protected function multipleWhere( |
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343 | |||
344 | /** |
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345 | * Build WHERE |
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346 | * |
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347 | * @param string $clause 'where|having' |
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348 | * @return array |
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349 | * @access protected |
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350 | */ |
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351 | protected function buildWhere( |
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371 | |||
372 | /** |
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373 | * Build 'col = val' part |
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374 | * |
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375 | * @param array $cls |
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376 | * @param array $where |
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377 | * @param array $settings |
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378 | * @return string |
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379 | * @access protected |
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380 | */ |
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381 | protected function buildWhereClause(array $cls, array $where, array $settings) |
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402 | |||
403 | abstract protected function isRaw($str, /*# bool */ $rawMode)/*# : bool */; |
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413 | } |
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414 |