Complex classes like Attributable 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 Attributable, and based on these observations, apply Extract Interface, too.
1 | <?php |
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22 | trait Attributable |
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23 | { |
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24 | /** |
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25 | * The entity attributes. |
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26 | * |
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27 | * @var \Illuminate\Database\Eloquent\Collection |
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28 | */ |
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29 | protected static $entityAttributes; |
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30 | |||
31 | /** |
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32 | * The entity attribute value trash. |
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33 | * |
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34 | * @var \Illuminate\Support\Collection |
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35 | */ |
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36 | protected $entityAttributeValueTrash; |
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37 | |||
38 | /** |
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39 | * The entity attribute relations. |
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40 | * |
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41 | * @var array |
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42 | */ |
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43 | protected $entityAttributeRelations = []; |
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44 | |||
45 | /** |
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46 | * Determine if the entity attribute relations have been booted. |
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47 | * |
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48 | * @var bool |
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49 | */ |
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50 | protected $entityAttributeRelationsBooted = false; |
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51 | |||
52 | /** |
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53 | * Boot the attributable trait for a model. |
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54 | * |
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55 | * @return void |
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56 | */ |
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57 | public static function bootAttributable() |
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63 | |||
64 | /** |
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65 | * Check if the model needs to be booted and if so, do it. |
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66 | * |
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67 | * @return void |
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68 | */ |
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69 | protected function bootIfNotBooted() |
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70 | { |
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71 | parent::bootIfNotBooted(); |
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72 | |||
73 | if (! $this->entityAttributeRelationsBooted) { |
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74 | $attributes = $this->getEntityAttributes(); |
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75 | |||
76 | // We will manually add a relationship for every attribute registered |
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77 | // of this entity. Once we know the relation method we have to use, |
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78 | // we will just add it to the entityAttributeRelations property. |
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79 | foreach ($attributes as $attribute) { |
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80 | $method = (bool) ($attribute->getAttributes()['is_collection'] ?? null) ? 'hasMany' : 'hasOne'; |
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81 | |||
82 | // This will return a closure fully binded to the current entity instance, |
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83 | // which will help us to simulate any relation as if it was made in the |
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84 | // original entity class definition using a function statement. |
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85 | $relation = Closure::bind(function () use ($attribute, $method) { |
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86 | $relation = $this->{$method}(Attribute::getTypeModel($attribute->getAttribute('type')), 'entity_id', $this->getKeyName()); |
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87 | |||
88 | // Since an attribute could be attached to multiple entities, then values could have |
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89 | // same entity ID, but for different entity types, so we need to add type where |
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90 | // clause to fetch only values related to the given entity ID + entity type. |
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91 | $relation->where('entity_type', $this->getMorphClass()); |
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92 | |||
93 | // We add a where clause in order to fetch only the elements that are |
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94 | // related to the given attribute. If no condition is set, it will |
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95 | // fetch all the value rows related to the current entity. |
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96 | return $relation->where($attribute->getForeignKey(), $attribute->getKey()); |
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97 | }, $this, get_class($this)); |
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98 | |||
99 | $this->setEntityAttributeRelation((string) ($attribute->getAttributes()['slug'] ?? null), $relation); |
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100 | } |
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101 | |||
102 | $this->entityAttributeRelationsBooted = true; |
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103 | } |
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104 | } |
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105 | |||
106 | /** |
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107 | * Set the given relationship on the model. |
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108 | * |
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109 | * @param string $relation |
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110 | * @param mixed $value |
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111 | * |
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112 | * @return $this |
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113 | */ |
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114 | public function relationsToArray() |
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140 | |||
141 | /** |
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142 | * {@inheritdoc} |
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143 | */ |
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144 | public function setRelation($key, $value) |
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152 | |||
153 | /** |
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154 | * {@inheritdoc} |
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155 | */ |
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156 | public function getRelationValue($key) |
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173 | |||
174 | /** |
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175 | * Get the entity attributes namespace if exists. |
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176 | * |
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177 | * @return string|null |
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178 | */ |
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179 | public function getEntityAttributesNamespace(): ?string |
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183 | |||
184 | /** |
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185 | * Get the entity attributes. |
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186 | * |
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187 | * @return \Illuminate\Database\Eloquent\Collection |
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188 | */ |
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189 | public function getEntityAttributes(): Collection |
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216 | |||
217 | /** |
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218 | * Clear the static attributes cache for this model. |
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219 | * |
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220 | * @return void |
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221 | */ |
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222 | public function clearAttributableCache() |
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229 | |||
230 | /** |
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231 | * Get the fillable attributes of a given array. |
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232 | * |
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233 | * @param array $attributes |
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234 | * |
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235 | * @return array |
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236 | */ |
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237 | protected function fillableFromArray(array $attributes) |
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251 | |||
252 | /** |
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253 | * Set a given attribute on the model. |
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254 | * |
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255 | * @param string $key |
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256 | * @param mixed $value |
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257 | * |
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258 | * @return mixed |
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259 | */ |
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260 | public function setAttribute($key, $value) |
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264 | |||
265 | /** |
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266 | * Get an attribute from the model. |
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267 | * |
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268 | * @param string $key |
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269 | * |
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270 | * @return mixed |
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271 | */ |
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272 | public function getAttribute($key) |
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276 | |||
277 | /** |
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278 | * Set the entity attribute relation. |
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279 | * |
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280 | * @param string $relation |
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281 | * @param mixed $value |
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282 | * |
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283 | * @return $this |
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284 | */ |
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285 | public function setEntityAttributeRelation(string $relation, $value) |
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291 | |||
292 | /** |
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293 | * Check if the given key is an entity attribute relation. |
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294 | * |
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295 | * @param string $key |
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296 | * |
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297 | * @return bool |
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298 | */ |
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299 | public function isEntityAttributeRelation(string $key): bool |
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303 | |||
304 | /** |
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305 | * Get the entity attribute value trash. |
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306 | * |
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307 | * @return \Illuminate\Support\Collection |
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308 | */ |
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309 | public function getEntityAttributeValueTrash(): BaseCollection |
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313 | |||
314 | /** |
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315 | * Get the entity attribute relations. |
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316 | * |
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317 | * @return array |
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318 | */ |
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319 | public function getEntityAttributeRelations(): array |
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323 | |||
324 | /** |
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325 | * Check if the given key is an entity attribute. |
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326 | * |
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327 | * @param string $key |
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328 | * |
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329 | * @return mixed |
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330 | */ |
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331 | public function isEntityAttribute(string $key) |
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337 | |||
338 | /** |
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339 | * Get the entity attribute. |
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340 | * |
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341 | * @param string $key |
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342 | * |
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343 | * @return mixed |
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344 | */ |
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345 | public function getEntityAttribute(string $key) |
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353 | |||
354 | /** |
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355 | * Get the entity attribute value. |
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356 | * |
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357 | * @param string $key |
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358 | * |
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359 | * @return mixed |
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360 | */ |
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361 | protected function getEntityAttributeValue(string $key) |
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374 | |||
375 | /** |
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376 | * Get the entity attribute relationship. |
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377 | * |
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378 | * @param string $key |
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379 | * |
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380 | * @return mixed |
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381 | */ |
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382 | protected function getEntityAttributeRelation(string $key) |
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392 | |||
393 | /** |
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394 | * Set the entity attribute. |
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395 | * |
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396 | * @param string $key |
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397 | * @param mixed $value |
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398 | * |
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399 | * @return mixed |
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400 | */ |
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401 | public function setEntityAttribute(string $key, $value) |
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434 | |||
435 | /** |
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436 | * Set the entity attribute value. |
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437 | * |
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438 | * @param \Rinvex\Attributes\Models\Attribute $attribute |
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439 | * @param mixed $value |
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440 | * |
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441 | * @return $this |
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442 | */ |
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443 | protected function setEntityAttributeValue(Attribute $attribute, $value) |
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459 | |||
460 | /** |
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461 | * Determine if the given key is a raw entity attribute. |
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462 | * |
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463 | * @param string $key |
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464 | * |
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465 | * @return bool |
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466 | */ |
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467 | protected function isRawEntityAttribute(string $key): bool |
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471 | |||
472 | /** |
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473 | * Get entity attribute bare name. |
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474 | * |
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475 | * @param string $key |
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476 | * |
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477 | * @return string |
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478 | */ |
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479 | protected function getEntityAttributeName(string $key): string |
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483 | |||
484 | /** |
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485 | * Get the attributes attached to this entity. |
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486 | * |
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487 | * @return \Illuminate\Database\Eloquent\Collection|null |
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488 | */ |
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489 | public function attributes(): ?Collection |
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493 | |||
494 | /** |
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495 | * Scope query with the given entity attribute. |
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496 | * |
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497 | * @param \Illuminate\Database\Eloquent\Builder $builder |
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498 | * @param string $key |
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499 | * @param mixed $value |
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500 | * |
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501 | * @return \Illuminate\Database\Eloquent\Builder |
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502 | */ |
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503 | public function scopeHasAttribute(Builder $builder, string $key, $value): Builder |
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509 | |||
510 | /** |
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511 | * Dynamically pipe calls to attribute relations. |
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512 | * |
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513 | * @param string $method |
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514 | * @param array $parameters |
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515 | * |
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516 | * @return mixed |
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517 | */ |
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518 | public function __call($method, $parameters) |
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530 | |||
531 | /** |
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532 | * Prepare the instance for serialization. |
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533 | * |
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534 | * @return array |
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535 | */ |
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536 | public function __sleep() |
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551 | |||
552 | /** |
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553 | * Restore the model after serialization. |
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554 | * |
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555 | * @return void |
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556 | */ |
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557 | public function __wakeup() |
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572 | } |
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573 |
If you implement
__call
and you know which methods are available, you can improve IDE auto-completion and static analysis by adding a @method annotation to the class.This is often the case, when
__call
is implemented by a parent class and only the child class knows which methods exist: