Complex classes like Table 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 Table, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | class Table implements ArrayAccess, Countable |
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| 27 | { |
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| 28 | private $name; |
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| 29 | private $db; |
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| 30 | private $cache = []; |
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| 31 | private $fields = []; |
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| 32 | private $defaults = []; |
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| 33 | private $eventDispatcher; |
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| 34 | private $fieldFactories; |
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| 35 | |||
| 36 | protected const ROW_CLASS = Row::class; |
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| 37 | protected const ROWCOLLECTION_CLASS = RowCollection::class; |
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| 38 | |||
| 39 | final public function __construct(Database $db, string $name) |
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| 54 | |||
| 55 | public function __debugInfo(): array |
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| 62 | |||
| 63 | public function __toString() |
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| 67 | |||
| 68 | public function setEventDispatcher(EventDispatcherInterface $eventDispatcher): self |
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| 74 | |||
| 75 | public function getEventDispatcher(): ?EventDispatcherInterface |
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| 79 | |||
| 80 | /** |
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| 81 | * Get the devault values used in new rows |
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| 82 | */ |
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| 83 | public function getDefaults(array $overrides = null): array |
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| 99 | |||
| 100 | /** |
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| 101 | * Store a row in the cache. |
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| 102 | */ |
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| 103 | public function cache(Row $row): Row |
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| 111 | |||
| 112 | /** |
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| 113 | * Clear the current cache. |
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| 114 | */ |
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| 115 | public function clearCache(): self |
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| 121 | |||
| 122 | /** |
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| 123 | * Returns whether the id is cached or not |
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| 124 | * @param mixed $id |
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| 125 | */ |
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| 126 | public function isCached($id): bool |
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| 130 | |||
| 131 | /** |
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| 132 | * Returns a row from the cache. |
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| 133 | * @param mixed $id |
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| 134 | */ |
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| 135 | public function getCached($id): ?Row |
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| 149 | |||
| 150 | public function delete(): Delete |
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| 160 | |||
| 161 | public function insert(array $data = []): Insert |
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| 171 | |||
| 172 | public function select(): Select |
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| 182 | |||
| 183 | public function selectAggregate(string $function, string $field = 'id'): SelectAggregate |
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| 193 | |||
| 194 | public function update(array $data = []): Update |
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| 204 | |||
| 205 | /** |
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| 206 | * Magic method to get the Field instance of a table field |
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| 207 | */ |
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| 208 | public function __get(string $name): Field |
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| 218 | |||
| 219 | /** |
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| 220 | * Magic method to check if a field exists or not. |
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| 221 | */ |
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| 222 | public function __isset(string $name): bool |
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| 226 | |||
| 227 | /** |
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| 228 | * @see Countable |
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| 229 | */ |
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| 230 | public function count(): int |
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| 234 | |||
| 235 | /** |
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| 236 | * Check if a row with a specific id exists. |
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| 237 | * |
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| 238 | * @see ArrayAccess |
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| 239 | * @param mixed $offset |
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| 240 | */ |
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| 241 | public function offsetExists($offset): bool |
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| 252 | |||
| 253 | /** |
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| 254 | * Returns a row with a specific id. |
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| 255 | * |
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| 256 | * @see ArrayAccess |
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| 257 | * |
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| 258 | * @param mixed $offset |
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| 259 | */ |
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| 260 | public function offsetGet($offset): ?Row |
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| 271 | |||
| 272 | /** |
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| 273 | * Store a row with a specific id. |
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| 274 | * |
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| 275 | * @see ArrayAccess |
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| 276 | * @param mixed $offset |
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| 277 | * @param mixed $value |
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| 278 | */ |
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| 279 | public function offsetSet($offset, $value): Row |
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| 303 | |||
| 304 | /** |
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| 305 | * Remove a row with a specific id. |
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| 306 | * |
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| 307 | * @see ArrayAccess |
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| 308 | * @param mixed $offset |
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| 309 | */ |
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| 310 | public function offsetUnset($offset) |
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| 318 | |||
| 319 | /** |
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| 320 | * Returns the table name. |
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| 321 | */ |
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| 322 | public function getName(): string |
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| 326 | |||
| 327 | /** |
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| 328 | * Returns the foreign key name. |
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| 329 | */ |
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| 330 | public function getForeignKey(): string |
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| 334 | |||
| 335 | /** |
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| 336 | * Returns the foreign key. |
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| 337 | */ |
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| 338 | public function getJoinField(Table $table): ?Field |
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| 344 | |||
| 345 | public function getJoinTable(Table $table): ?Table |
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| 359 | |||
| 360 | /** |
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| 361 | * Returns the Database instance associated with this table. |
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| 362 | */ |
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| 363 | public function getDatabase(): Database |
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| 367 | |||
| 368 | /** |
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| 369 | * Returns all fields. |
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| 370 | * |
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| 371 | * @return Field[] |
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| 372 | */ |
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| 373 | public function getFields() |
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| 377 | |||
| 378 | public function create(array $data = []): Row |
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| 395 | |||
| 396 | public function createCollection(array $rows = []): RowCollection |
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| 401 | |||
| 402 | public function createField(array $info): Field |
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| 412 | } |
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| 413 |
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: