Complex classes like Entity 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 Entity, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 23 | class Entity extends Generic |
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| 24 | { |
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| 25 | /** @var array Collection of all additional fields names */ |
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| 26 | public static $fieldNames = array(); |
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| 27 | |||
| 28 | /** @var array Collection of localized additional fields identifiers */ |
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| 29 | protected static $localizedFieldIDs = array(); |
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| 30 | |||
| 31 | /** @var array Collection of NOT localized additional fields identifiers */ |
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| 32 | protected static $notLocalizedFieldIDs = array(); |
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| 33 | |||
| 34 | /** @var array Collection of all additional fields identifiers */ |
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| 35 | protected static $fieldIDs = array(); |
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| 36 | |||
| 37 | /** @var @var array Collection of additional fields value column names */ |
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| 38 | protected static $fieldValueColumns = array(); |
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| 39 | |||
| 40 | |||
| 41 | /** @var array Collection of entity field filter */ |
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| 42 | protected $fieldFilter = array(); |
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| 43 | |||
| 44 | /** @var string Query locale */ |
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| 45 | protected $locale = ''; |
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| 46 | |||
| 47 | /** @var array Collection of additional fields for ordering */ |
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| 48 | protected $entityOrderBy = array(); |
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| 49 | |||
| 50 | /** |
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| 51 | * Select specified entity fields. |
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| 52 | * If this method is called then only selected entity fields |
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| 53 | * would be return in entity instances. |
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| 54 | * |
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| 55 | * @param mixed $fieldNames Entity field name or collection of names |
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| 56 | * @return $this Chaining |
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| 57 | */ |
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| 58 | public function select($fieldNames) |
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| 72 | |||
| 73 | /** |
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| 74 | * Set additional field for sorting. |
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| 75 | * |
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| 76 | * @param string $fieldName Additional field name |
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| 77 | * @param string $order Sorting order |
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| 78 | * @return $this Chaining |
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| 79 | */ |
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| 80 | public function orderBy($fieldName, $order = 'ASC') |
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| 90 | |||
| 91 | /** |
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| 92 | * Set resulting query limits. |
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| 93 | * |
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| 94 | * @param integer $offset Starting index |
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| 95 | * @param integer|null $count Entities count |
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| 96 | * @return $this Chaining |
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| 97 | */ |
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| 98 | public function limit($offset, $count = null) |
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| 104 | |||
| 105 | /** |
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| 106 | * Add condition to current query. |
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| 107 | * |
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| 108 | * @param string $fieldName Entity field name |
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| 109 | * @param string $fieldValue Value |
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| 110 | * @return $this Chaining |
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| 111 | */ |
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| 112 | public function where($fieldName, $fieldValue = null, $fieldRelation = ArgumentInterface::EQUAL) |
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| 125 | |||
| 126 | /** @return array Collection of entity identifiers */ |
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| 127 | protected function findEntityIDs() |
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| 155 | |||
| 156 | /** |
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| 157 | * Get collection of entity identifiers filtered by navigation identifiers. |
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| 158 | * |
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| 159 | * @param array $entityIDs Additional collection of entity identifiers for filtering |
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| 160 | * @return array Collection of material identifiers by navigation identifiers |
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| 161 | */ |
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| 162 | protected function findByNavigationIDs($entityIDs = array()) |
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| 166 | |||
| 167 | /** |
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| 168 | * Get collection of entity identifiers filtered by additional field and its value. |
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| 169 | * |
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| 170 | * @param array $additionalFields Collection of additional field identifiers => values |
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| 171 | * @param array $entityIDs Additional collection of entity identifiers for filtering |
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| 172 | * @return array Collection of material identifiers by navigation identifiers |
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| 173 | */ |
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| 174 | protected function findByAdditionalFields($additionalFields, $entityIDs = array()) |
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| 194 | |||
| 195 | /** |
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| 196 | * Add sorting to entity identifiers. |
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| 197 | * |
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| 198 | * @param array $entityIDs |
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| 199 | * @param string $fieldName Additional field name for sorting |
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| 200 | * @param string $order Sorting order(ASC|DESC) |
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| 201 | * @return array Collection of entity identifiers ordered by additional field value |
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| 202 | */ |
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| 203 | protected function applySorting(array $entityIDs, $fieldName, $order = 'ASC') |
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| 221 | |||
| 222 | /** |
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| 223 | * Get entities additional field values. |
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| 224 | * |
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| 225 | * @param array $entityIDs Collection of entity identifiers |
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| 226 | * @return array Collection of entities additional fields EntityID => [Additional field name => Value] |
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| 227 | */ |
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| 228 | protected function findAdditionalFields($entityIDs) |
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| 290 | |||
| 291 | /** |
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| 292 | * Fill entity additional fields. |
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| 293 | * |
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| 294 | * @param Entity $entity Entity instance for filling |
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| 295 | * @param array $additionalFields Collection of additional field values |
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| 296 | * @return Entity With filled additional field values |
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| 297 | */ |
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| 298 | protected function fillEntityFields($entity, array $additionalFields) |
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| 314 | |||
| 315 | /** |
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| 316 | * Perform SamsonCMS query and get collection of entities. |
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| 317 | * |
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| 318 | * @param int $page Page number |
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| 319 | * @param int $size Page size |
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| 320 | * |
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| 321 | * @return \samsoncms\api\Entity[] Collection of entity fields |
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| 322 | */ |
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| 323 | public function find($page = null, $size = null) |
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| 351 | |||
| 352 | /** |
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| 353 | * Perform SamsonCMS query and get first matching entity. |
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| 354 | * |
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| 355 | * @return \samsoncms\api\Entity Firt matching entity |
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| 356 | */ |
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| 357 | public function first() |
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| 368 | |||
| 369 | /** |
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| 370 | * Perform SamsonCMS query and get collection of entities fields. |
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| 371 | * |
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| 372 | * @param string $fieldName Entity field name |
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| 373 | * @return array Collection of entity fields |
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| 374 | * @throws EntityFieldNotFound |
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| 375 | */ |
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| 376 | public function fields($fieldName) |
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| 402 | |||
| 403 | /** |
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| 404 | * Perform SamsonCMS query and get amount resulting entities. |
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| 405 | * |
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| 406 | * @return int Amount of resulting entities |
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| 407 | */ |
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| 408 | public function count() |
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| 418 | |||
| 419 | /** |
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| 420 | * Generic constructor. |
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| 421 | * |
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| 422 | * @param QueryInterface $query Database query instance |
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| 423 | * @param string $locale Query localization |
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| 424 | */ |
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| 425 | public function __construct(QueryInterface $query = null, $locale = null) |
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| 434 | } |
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| 435 |
There are different options of fixing this problem.
If you want to be on the safe side, you can add an additional type-check:
If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:
Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.