Complex classes like Reservation 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 Reservation, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 52 | class Reservation extends DataObject |
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| 53 | { |
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| 54 | /** |
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| 55 | * Time to wait before deleting the discarded cart |
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| 56 | * Give a string that is parsable by strtotime |
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| 57 | * |
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| 58 | * @var string |
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| 59 | */ |
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| 60 | private static $delete_after = '+1 hour'; |
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| 61 | |||
| 62 | /** |
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| 63 | * The address to whom the ticket notifications are sent |
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| 64 | * By default the admin email is used |
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| 65 | * |
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| 66 | * @config |
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| 67 | * @var string |
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| 68 | */ |
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| 69 | private static $mail_sender; |
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| 70 | |||
| 71 | /** |
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| 72 | * The address from where the ticket mails are sent |
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| 73 | * By default the admin email is used |
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| 74 | * |
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| 75 | * @config |
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| 76 | * @var string |
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| 77 | */ |
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| 78 | private static $mail_receiver; |
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| 79 | |||
| 80 | private static $db = array( |
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| 81 | 'Status' => 'Enum("CART,PENDING,PAID,CANCELED","CART")', |
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| 82 | 'Title' => 'Varchar(255)', |
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| 83 | 'Subtotal' => 'Currency', |
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| 84 | 'Total' => 'Currency', |
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| 85 | 'Gateway' => 'Varchar(255)', |
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| 86 | 'Comments' => 'Text', |
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| 87 | 'AgreeToTermsAndConditions' => 'Boolean', |
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| 88 | 'ReservationCode' => 'Varchar(255)' |
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| 89 | ); |
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| 90 | |||
| 91 | private static $default_sort = 'Created DESC'; |
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| 92 | |||
| 93 | private static $has_one = array( |
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| 94 | 'Event' => 'CalendarEvent', |
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| 95 | 'MainContact' => 'Broarm\EventTickets\Attendee' |
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| 96 | ); |
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| 97 | |||
| 98 | private static $has_many = array( |
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| 99 | 'Payments' => 'Payment', |
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| 100 | 'Attendees' => 'Broarm\EventTickets\Attendee.Reservation' |
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| 101 | ); |
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| 102 | |||
| 103 | private static $belongs_many_many = array( |
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| 104 | 'PriceModifiers' => 'Broarm\EventTickets\PriceModifier' |
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| 105 | ); |
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| 106 | |||
| 107 | private static $indexes = array( |
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| 108 | 'ReservationCode' => 'unique("ReservationCode")' |
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| 109 | ); |
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| 110 | |||
| 111 | private static $summary_fields = array( |
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| 112 | 'ReservationCode' => 'Reservation', |
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| 113 | 'Title' => 'Customer', |
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| 114 | 'Total.Nice' => 'Total', |
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| 115 | 'State' => 'Status', |
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| 116 | 'GatewayNice' => 'Payment method', |
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| 117 | 'Created.Nice' => 'Date' |
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| 118 | ); |
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| 119 | |||
| 120 | /** |
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| 121 | * Actions usable on the cms detail view |
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| 122 | * |
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| 123 | * @var array |
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| 124 | */ |
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| 125 | private static $better_buttons_actions = array( |
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| 126 | 'send' |
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| 127 | ); |
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| 128 | |||
| 129 | public function getCMSFields() |
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| 149 | |||
| 150 | /** |
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| 151 | * Add utility actions to the reservation details view |
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| 152 | * |
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| 153 | * @return FieldList |
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| 154 | */ |
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| 155 | public function getBetterButtonsActions() |
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| 163 | |||
| 164 | /** |
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| 165 | * Generate a reservation code if it does not yet exists |
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| 166 | */ |
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| 167 | public function onBeforeWrite() |
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| 179 | |||
| 180 | /** |
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| 181 | * After deleting a reservation, delete the attendees and files |
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| 182 | */ |
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| 183 | public function onBeforeDelete() |
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| 200 | |||
| 201 | /** |
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| 202 | * Gets a nice unnamespaced name |
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| 203 | * |
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| 204 | * @return string |
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| 205 | */ |
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| 206 | public function singular_name() |
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| 211 | |||
| 212 | /** |
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| 213 | * Returns the nice gateway title |
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| 214 | * |
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| 215 | * @return string |
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| 216 | */ |
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| 217 | public function getGatewayNice() |
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| 221 | |||
| 222 | /** |
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| 223 | * Check if the cart is still in cart state and the delete_after time period has been exceeded |
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| 224 | * |
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| 225 | * @return bool |
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| 226 | */ |
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| 227 | public function isDiscarded() |
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| 232 | |||
| 233 | /** |
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| 234 | * Get the full name |
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| 235 | * |
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| 236 | * @return string |
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| 237 | */ |
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| 238 | public function getName() |
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| 239 | { |
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| 240 | /** @var Attendee $attendee */ |
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| 241 | if (($mainContact = $this->MainContact()) && $mainContact->exists() && $name = $mainContact->getName()) { |
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| 242 | return $name; |
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| 243 | } else { |
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| 244 | return 'new reservation'; |
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| 245 | } |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * Return the translated state |
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| 250 | * |
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| 251 | * @return string |
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| 252 | */ |
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| 253 | public function getState() |
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| 257 | |||
| 258 | /** |
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| 259 | * Get a the translated map of available states |
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| 260 | * |
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| 261 | * @return array |
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| 262 | */ |
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| 263 | private function getStates() |
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| 269 | |||
| 270 | /** |
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| 271 | * Get the total by querying the sum of attendee ticket prices |
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| 272 | * |
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| 273 | * @return float |
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| 274 | */ |
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| 275 | public function calculateTotal() |
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| 291 | |||
| 292 | /** |
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| 293 | * Safely change to a state |
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| 294 | * todo check if state direction matches |
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| 295 | * |
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| 296 | * @param $state |
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| 297 | * |
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| 298 | * @return boolean |
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| 299 | */ |
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| 300 | public function changeState($state) |
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| 311 | |||
| 312 | /** |
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| 313 | * Set the main contact id |
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| 314 | * |
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| 315 | * @param $id |
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| 316 | */ |
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| 317 | public function setMainContact($id) |
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| 322 | |||
| 323 | /** |
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| 324 | * Create a reservation code |
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| 325 | * |
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| 326 | * @return string |
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| 327 | */ |
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| 328 | public function createReservationCode() |
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| 332 | |||
| 333 | /** |
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| 334 | * Create the folder for the qr code and ticket file |
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| 335 | * |
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| 336 | * @return Folder|DataObject|null |
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| 337 | */ |
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| 338 | public function fileFolder() |
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| 342 | |||
| 343 | /** |
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| 344 | * Generate the qr codes and downloadable pdf |
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| 345 | */ |
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| 346 | public function createFiles() |
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| 355 | |||
| 356 | /** |
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| 357 | * Send the reservation mail |
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| 358 | */ |
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| 359 | public function sendReservation() |
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| 383 | |||
| 384 | /** |
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| 385 | * Send the reserved tickets |
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| 386 | */ |
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| 387 | public function sendTickets() |
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| 435 | |||
| 436 | |||
| 437 | /** |
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| 438 | * Send a booking notification to the ticket mail sender or the site admin |
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| 439 | */ |
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| 440 | public function sendNotification() |
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| 464 | |||
| 465 | /** |
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| 466 | * Create the files and send the reservation, notification and tickets |
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| 467 | */ |
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| 468 | public function send() |
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| 475 | |||
| 476 | /** |
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| 477 | * Get the download link |
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| 478 | * |
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| 479 | * @return string|null |
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| 480 | */ |
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| 481 | public function getDownloadLink() |
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| 494 | |||
| 495 | public function canView($member = null) |
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| 499 | |||
| 500 | public function canEdit($member = null) |
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| 504 | |||
| 505 | public function canDelete($member = null) |
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| 509 | |||
| 510 | public function canCreate($member = null) |
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| 514 | } |
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| 515 |
Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a
@returnannotation as described here.