Complex classes like AbstractOffer 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 AbstractOffer, and based on these observations, apply Extract Interface, too.
| 1 | <?php | ||
| 17 | abstract class AbstractOffer implements OfferInterface | ||
| 18 | { | ||
| 19 | /** | ||
| 20 | * @var string | ||
| 21 | */ | ||
| 22 | private $id; | ||
| 23 | |||
| 24 | /** | ||
| 25 | * @var bool | ||
| 26 | */ | ||
| 27 | private $available; | ||
| 28 | |||
| 29 | /** | ||
| 30 | * @var string | ||
| 31 | */ | ||
| 32 | private $url; | ||
| 33 | |||
| 34 | /** | ||
| 35 | * @var float | ||
| 36 | */ | ||
| 37 | private $price; | ||
| 38 | |||
| 39 | /** | ||
| 40 | * @var float | ||
| 41 | */ | ||
| 42 | private $oldPrice; | ||
| 43 | |||
| 44 | /** | ||
| 45 | * @var string | ||
| 46 | */ | ||
| 47 | private $currencyId; | ||
| 48 | |||
| 49 | /** | ||
| 50 | * @var int | ||
| 51 | */ | ||
| 52 | private $categoryId; | ||
| 53 | |||
| 54 | /** | ||
| 55 | * @var string | ||
| 56 | */ | ||
| 57 | private $marketCategory; | ||
| 58 | |||
| 59 | /** | ||
| 60 | * @var bool | ||
| 61 | */ | ||
| 62 | private $adult; | ||
| 63 | |||
| 64 | /** | ||
| 65 | * @var string | ||
| 66 | */ | ||
| 67 | private $salesNotes; | ||
| 68 | |||
| 69 | /** | ||
| 70 | * @var bool | ||
| 71 | */ | ||
| 72 | private $manufacturerWarranty; | ||
| 73 | |||
| 74 | /** | ||
| 75 | * @var bool | ||
| 76 | */ | ||
| 77 | private $pickup; | ||
| 78 | |||
| 79 | /** | ||
| 80 | * @var bool | ||
| 81 | */ | ||
| 82 | private $downloadable; | ||
| 83 | |||
| 84 | /** | ||
| 85 | * @var bool | ||
| 86 | */ | ||
| 87 | private $delivery; | ||
| 88 | |||
| 89 | /** | ||
| 90 | * @var float | ||
| 91 | */ | ||
| 92 | private $localDeliveryCost; | ||
| 93 | |||
| 94 | /** | ||
| 95 | * @var string | ||
| 96 | */ | ||
| 97 | private $description; | ||
| 98 | |||
| 99 | /** | ||
| 100 | * @var string | ||
| 101 | */ | ||
| 102 | private $countryOfOrigin; | ||
| 103 | |||
| 104 | /** | ||
| 105 | * @var array | ||
| 106 | */ | ||
| 107 | private $pictures = []; | ||
| 108 | |||
| 109 | /** | ||
| 110 | * @var array | ||
| 111 | */ | ||
| 112 | private $params = []; | ||
| 113 | |||
| 114 | /** | ||
| 115 | * @return array | ||
| 116 | */ | ||
| 117 | public function toArray() | ||
| 118 |     { | ||
| 119 | return \array_merge($this->getHeaderOptions(), $this->getOptions(), $this->getFooterOptions()); | ||
| 120 | } | ||
| 121 | |||
| 122 | /** | ||
| 123 | * @return string | ||
| 124 | */ | ||
| 125 | public function getId() | ||
| 126 |     { | ||
| 127 | return $this->id; | ||
| 128 | } | ||
| 129 | |||
| 130 | /** | ||
| 131 | * @param string $id | ||
| 132 | * | ||
| 133 | * @return $this | ||
| 134 | */ | ||
| 135 | public function setId($id) | ||
| 136 |     { | ||
| 137 | $this->id = $id; | ||
| 138 | |||
| 139 | return $this; | ||
| 140 | } | ||
| 141 | |||
| 142 | /** | ||
| 143 | * @return bool | ||
| 144 | */ | ||
| 145 | public function isAvailable() | ||
| 146 |     { | ||
| 147 | return $this->available; | ||
| 148 | } | ||
| 149 | |||
| 150 | /** | ||
| 151 | * @param bool $available | ||
| 152 | * | ||
| 153 | * @return $this | ||
| 154 | */ | ||
| 155 | public function setAvailable($available) | ||
| 156 |     { | ||
| 157 | $this->available = $available; | ||
| 158 | |||
| 159 | return $this; | ||
| 160 | } | ||
| 161 | |||
| 162 | /** | ||
| 163 | * @return string | ||
| 164 | */ | ||
| 165 | public function getUrl() | ||
| 166 |     { | ||
| 167 | return $this->url; | ||
| 168 | } | ||
| 169 | |||
| 170 | /** | ||
| 171 | * @param string $url | ||
| 172 | * | ||
| 173 | * @return $this | ||
| 174 | */ | ||
| 175 | public function setUrl($url) | ||
| 176 |     { | ||
| 177 | $this->url = $url; | ||
| 178 | |||
| 179 | return $this; | ||
| 180 | } | ||
| 181 | |||
| 182 | /** | ||
| 183 | * @return float | ||
| 184 | */ | ||
| 185 | public function getPrice() | ||
| 186 |     { | ||
| 187 | return $this->price; | ||
| 188 | } | ||
| 189 | |||
| 190 | /** | ||
| 191 | * @param float $price | ||
| 192 | * | ||
| 193 | * @return $this | ||
| 194 | */ | ||
| 195 | public function setPrice($price) | ||
| 201 | |||
| 202 | /** | ||
| 203 | * @return float | ||
| 204 | */ | ||
| 205 | public function getOldPrice() | ||
| 206 |     { | ||
| 207 | return $this->oldPrice; | ||
| 208 | } | ||
| 209 | |||
| 210 | /** | ||
| 211 | * @param float $oldPrice | ||
| 212 | * | ||
| 213 | * @return $this | ||
| 214 | */ | ||
| 215 | public function setOldPrice($oldPrice) | ||
| 221 | |||
| 222 | /** | ||
| 223 | * @return string | ||
| 224 | */ | ||
| 225 | public function getCurrencyId() | ||
| 229 | |||
| 230 | /** | ||
| 231 | * @param string $currencyId | ||
| 232 | * | ||
| 233 | * @return $this | ||
| 234 | */ | ||
| 235 | public function setCurrencyId($currencyId) | ||
| 241 | |||
| 242 | /** | ||
| 243 | * @return int | ||
| 244 | */ | ||
| 245 | public function getCategoryId() | ||
| 249 | |||
| 250 | /** | ||
| 251 | * @param int $categoryId | ||
| 252 | * | ||
| 253 | * @return $this | ||
| 254 | */ | ||
| 255 | public function setCategoryId($categoryId) | ||
| 261 | |||
| 262 | /** | ||
| 263 | * @return string | ||
| 264 | */ | ||
| 265 | public function getMarketCategory() | ||
| 269 | |||
| 270 | /** | ||
| 271 | * @param string $marketCategory | ||
| 272 | * | ||
| 273 | * @return $this | ||
| 274 | */ | ||
| 275 | public function setMarketCategory($marketCategory) | ||
| 281 | |||
| 282 | /** | ||
| 283 | * @return bool | ||
| 284 | */ | ||
| 285 | public function isAdult() | ||
| 289 | |||
| 290 | /** | ||
| 291 | * @param bool $adult | ||
| 292 | * | ||
| 293 | * @return $this | ||
| 294 | */ | ||
| 295 | public function setAdult($adult) | ||
| 301 | |||
| 302 | /** | ||
| 303 | * @return string | ||
| 304 | */ | ||
| 305 | public function getSalesNotes() | ||
| 309 | |||
| 310 | /** | ||
| 311 | * @param string $salesNotes | ||
| 312 | * | ||
| 313 | * @return $this | ||
| 314 | */ | ||
| 315 | public function setSalesNotes($salesNotes) | ||
| 321 | |||
| 322 | /** | ||
| 323 | * @return bool | ||
| 324 | */ | ||
| 325 | public function isManufacturerWarranty() | ||
| 329 | |||
| 330 | /** | ||
| 331 | * @param bool $manufacturerWarranty | ||
| 332 | * | ||
| 333 | * @return $this | ||
| 334 | */ | ||
| 335 | public function setManufacturerWarranty($manufacturerWarranty) | ||
| 341 | |||
| 342 | /** | ||
| 343 | * @return bool | ||
| 344 | */ | ||
| 345 | public function isPickup() | ||
| 349 | |||
| 350 | /** | ||
| 351 | * @param bool $pickup | ||
| 352 | * | ||
| 353 | * @return $this | ||
| 354 | */ | ||
| 355 | public function setPickup($pickup) | ||
| 361 | |||
| 362 | /** | ||
| 363 | * @return bool | ||
| 364 | */ | ||
| 365 | public function isDownloadable() | ||
| 369 | |||
| 370 | /** | ||
| 371 | * @param bool $downloadable | ||
| 372 | * | ||
| 373 | * @return $this | ||
| 374 | */ | ||
| 375 | public function setDownloadable($downloadable) | ||
| 381 | |||
| 382 | /** | ||
| 383 | * @return bool | ||
| 384 | */ | ||
| 385 | public function isDelivery() | ||
| 389 | |||
| 390 | /** | ||
| 391 | * @param bool $delivery | ||
| 392 | * | ||
| 393 | * @return $this | ||
| 394 | */ | ||
| 395 | public function setDelivery($delivery) | ||
| 401 | |||
| 402 | /** | ||
| 403 | * @return float | ||
| 404 | */ | ||
| 405 | public function getLocalDeliveryCost() | ||
| 409 | |||
| 410 | /** | ||
| 411 | * @param float $localDeliveryCost | ||
| 412 | * | ||
| 413 | * @return $this | ||
| 414 | */ | ||
| 415 | public function setLocalDeliveryCost($localDeliveryCost) | ||
| 421 | |||
| 422 | /** | ||
| 423 | * @return string | ||
| 424 | */ | ||
| 425 | public function getDescription() | ||
| 429 | |||
| 430 | /** | ||
| 431 | * @param string $description | ||
| 432 | * | ||
| 433 | * @return $this | ||
| 434 | */ | ||
| 435 | public function setDescription($description) | ||
| 441 | |||
| 442 | /** | ||
| 443 | * @return string | ||
| 444 | */ | ||
| 445 | public function getCountryOfOrigin() | ||
| 449 | |||
| 450 | /** | ||
| 451 | * @param string $countryOfOrigin | ||
| 452 | * | ||
| 453 | * @return $this | ||
| 454 | */ | ||
| 455 | public function setCountryOfOrigin($countryOfOrigin) | ||
| 461 | |||
| 462 | /** | ||
| 463 | * @return array | ||
| 464 | */ | ||
| 465 | public function getParams() | ||
| 469 | |||
| 470 | /** | ||
| 471 | * @param OfferParam $param | ||
| 472 | * | ||
| 473 | * @return $this | ||
| 474 | */ | ||
| 475 | public function addParam(OfferParam $param) | ||
| 481 | |||
| 482 | /** | ||
| 483 | * Add picture | ||
| 484 | * | ||
| 485 | * @param string $url | ||
| 486 | * | ||
| 487 | * @return $this | ||
| 488 | */ | ||
| 489 | public function addPicture($url) | ||
| 497 | |||
| 498 | /** | ||
| 499 | * Set pictures | ||
| 500 | * | ||
| 501 | * @param array $pictures | ||
| 502 | * | ||
| 503 | * @return $this | ||
| 504 | */ | ||
| 505 | public function setPictures(array $pictures) | ||
| 511 | |||
| 512 | /** | ||
| 513 | * Get picture list | ||
| 514 | * | ||
| 515 | * @return array | ||
| 516 | */ | ||
| 517 | public function getPictures() | ||
| 521 | |||
| 522 | /** | ||
| 523 | * @return array | ||
| 524 | */ | ||
| 525 | abstract protected function getOptions(); | ||
| 526 | |||
| 527 | /** | ||
| 528 | * @return array | ||
| 529 | */ | ||
| 530 | private function getHeaderOptions() | ||
| 545 | |||
| 546 | /** | ||
| 547 | * @return array | ||
| 548 | */ | ||
| 549 | private function getFooterOptions() | ||
| 560 | } | ||
| 561 |