Complex classes like DomainsQuery 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 DomainsQuery, and based on these observations, apply Extract Interface, too.
1 | <?php |
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25 | class DomainsQuery extends Query |
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26 | { |
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27 | use ArrayableTrait, PopulateModel, traits\Attributes, AuditAttributes; |
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28 | |||
29 | /** |
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30 | * @var bool Whether results should be returned in the order specified by [[domain]]. |
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31 | */ |
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32 | public $fixedOrder = false; |
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33 | |||
34 | /** |
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35 | * @inheritdoc |
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36 | */ |
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37 | public $orderBy = 'sortOrder'; |
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38 | |||
39 | /** |
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40 | * @var Domain[]|null The cached query result |
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41 | * @see setCachedResult() |
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42 | */ |
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43 | private $result; |
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44 | |||
45 | /** |
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46 | * @var Domain[]|null The criteria params that were set when the cached query result was set |
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47 | * @see setCachedResult() |
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48 | */ |
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49 | private $resultCriteria; |
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50 | |||
51 | /** |
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52 | * @var Domains |
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53 | */ |
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54 | private $field; |
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55 | |||
56 | /** |
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57 | * @inheritdoc |
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58 | */ |
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59 | public function __construct(Domains $domains, $config = []) |
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64 | |||
65 | /** |
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66 | * @inheritdoc |
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67 | */ |
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68 | public function init() |
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85 | |||
86 | /** |
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87 | * @return Domains |
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88 | */ |
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89 | public function getField(): Domains |
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93 | |||
94 | /** |
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95 | * @inheritdoc |
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96 | */ |
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97 | protected function getIndexBy() |
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101 | |||
102 | /** |
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103 | * @inheritdoc |
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104 | * return static |
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105 | */ |
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106 | public function fixedOrder(bool $value = true) |
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112 | |||
113 | // Query preparation/execution |
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114 | // ------------------------------------------------------------------------- |
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115 | |||
116 | /** |
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117 | * @inheritdoc |
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118 | * |
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119 | * @throws QueryAbortedException if it can be determined that there won’t be any results |
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120 | */ |
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121 | public function prepare($builder) |
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136 | |||
137 | /** |
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138 | * Applies the 'fixedOrder' and 'orderBy' params to the query being prepared. |
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139 | * |
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140 | * @param Connection|null $db The database connection used to generate the SQL statement. |
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141 | * If this parameter is not given, the `db` application component will be used. |
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142 | * |
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143 | * @throws Exception if the DB connection doesn't support fixed ordering |
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144 | * @throws QueryAbortedException |
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145 | */ |
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146 | private function applyOrderByParams(Connection $db) |
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159 | |||
160 | /** |
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161 | * @param Connection $db |
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162 | * @throws Exception |
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163 | * @throws QueryAbortedException |
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164 | */ |
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165 | private function applyEmptyOrderByParams(Connection $db) |
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187 | |||
188 | /** |
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189 | * @inheritdoc |
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190 | */ |
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191 | public function count($q = '*', $db = null) |
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200 | |||
201 | /** |
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202 | * @inheritdoc |
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203 | */ |
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204 | public function all($db = null) |
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213 | |||
214 | /** |
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215 | * @inheritdoc |
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216 | */ |
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217 | public function one($db = null) |
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233 | |||
234 | /** |
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235 | * Executes the query and returns a single row of result at a given offset. |
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236 | * |
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237 | * @param int $n The offset of the row to return. If [[offset]] is set, $offset will be added to it. |
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238 | * @param Connection|null $db The database connection used to generate the SQL statement. |
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239 | * If this parameter is not given, the `db` application component will be used. |
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240 | * |
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241 | * @return Domain|array|bool The element or row of the query result. False is returned if the query |
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242 | * results in nothing. |
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243 | */ |
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244 | public function nth(int $n, Connection $db = null) |
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253 | |||
254 | /** |
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255 | * Returns the resulting domains set by [[setCachedResult()]], if the criteria params haven’t changed since then. |
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256 | * |
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257 | * @return Domain[]|null The resulting domains, or null if setCachedResult() was never called or the criteria has |
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258 | * changed |
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259 | * @see setCachedResult() |
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260 | */ |
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261 | public function getCachedResult() |
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276 | |||
277 | /** |
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278 | * Sets the resulting domains. |
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279 | * |
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280 | * If this is called, [[all()]] will return these domains rather than initiating a new SQL query, |
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281 | * as long as none of the parameters have changed since setCachedResult() was called. |
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282 | * |
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283 | * @param Domain[] $elements The resulting elements. |
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284 | * |
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285 | * @see getCachedResult() |
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286 | */ |
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287 | public function setCachedResult(array $elements) |
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292 | |||
293 | /** |
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294 | * Returns an array of the current criteria attribute values. |
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295 | * |
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296 | * @return array |
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297 | */ |
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298 | public function getCriteria(): array |
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302 | |||
303 | /** |
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304 | * Returns the query's criteria attributes. |
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305 | * |
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306 | * @return string[] |
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307 | */ |
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308 | public function criteriaAttributes(): array |
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327 | |||
328 | /** |
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329 | * @param $row |
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330 | * |
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331 | * @return Domain |
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332 | */ |
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333 | function createModel($row): Domain |
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337 | } |
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338 |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..