| 1 |
<?php |
| 2 |
/** |
| 3 |
* Shared repository functionality. |
| 4 |
* |
| 5 |
* @package SeQura/WC |
| 6 |
* @subpackage SeQura/WC/Repositories |
| 7 |
*/ |
| 8 |
|
| 9 |
namespace SeQura\WC\Repositories; |
| 10 |
|
| 11 |
use SeQura\Core\Infrastructure\ORM\Entity; |
| 12 |
use SeQura\Core\Infrastructure\ORM\Exceptions\QueryFilterInvalidParamException; |
| 13 |
use SeQura\Core\Infrastructure\ORM\Interfaces\RepositoryInterface; |
| 14 |
use SeQura\Core\Infrastructure\ORM\QueryFilter\QueryCondition; |
| 15 |
use SeQura\Core\Infrastructure\ORM\QueryFilter\QueryFilter; |
| 16 |
use SeQura\Core\Infrastructure\ORM\Utility\IndexHelper; |
| 17 |
use SeQura\Core\Infrastructure\ServiceRegister; |
| 18 |
use SeQura\WC\Dto\Table_Index; |
| 19 |
use wpdb; |
| 20 |
|
| 21 |
/** |
| 22 |
* Shared repository functionality. |
| 23 |
*/ |
| 24 |
abstract class Repository implements RepositoryInterface, Interface_Deletable_Repository, Interface_Table_Migration_Repository { |
| 25 |
|
| 26 |
/** |
| 27 |
* Entity class FQN. |
| 28 |
* |
| 29 |
* @var string |
| 30 |
*/ |
| 31 |
protected $entity_class; |
| 32 |
|
| 33 |
/** |
| 34 |
* Database session object. |
| 35 |
* |
| 36 |
* @var \wpdb |
| 37 |
*/ |
| 38 |
protected $db; |
| 39 |
|
| 40 |
/** |
| 41 |
* Returns unprefixed table name. |
| 42 |
*/ |
| 43 |
abstract protected function get_unprefixed_table_name(): string; |
| 44 |
|
| 45 |
/** |
| 46 |
* Returns full table name. |
| 47 |
*/ |
| 48 |
public function get_table_name(): string { |
| 49 |
return $this->db->prefix . $this->get_unprefixed_table_name(); |
| 50 |
} |
| 51 |
|
| 52 |
/** |
| 53 |
* Get the name that is set to the original table during the migration. |
| 54 |
* |
| 55 |
* @return string The name of the old table. |
| 56 |
*/ |
| 57 |
public function get_legacy_table_name() { |
| 58 |
return $this->get_table_name() . '_legacy'; |
| 59 |
} |
| 60 |
|
| 61 |
/** |
| 62 |
* Constructor. |
| 63 |
* |
| 64 |
* @throws \RuntimeException If database service not found. |
| 65 |
*/ |
| 66 |
public function __construct() { |
| 67 |
$db = ServiceRegister::getService( \wpdb::class ); |
| 68 |
if ( ! $db instanceof \wpdb ) { |
| 69 |
throw new \RuntimeException( 'Database service not found.' ); |
| 70 |
} |
| 71 |
$this->db = $db; |
| 72 |
} |
| 73 |
|
| 74 |
/** |
| 75 |
* Returns full class name. |
| 76 |
* |
| 77 |
* @return string Full class name. |
| 78 |
*/ |
| 79 |
public static function getClassName() { |
| 80 |
return __CLASS__; |
| 81 |
} |
| 82 |
|
| 83 |
/** |
| 84 |
* Sets repository entity |
| 85 |
* |
| 86 |
* @noinspection PhpDocMissingThrowsInspection |
| 87 |
* |
| 88 |
* @param string $entity_class Entity class. |
| 89 |
* @return void |
| 90 |
*/ |
| 91 |
public function setEntityClass( $entity_class ): void { |
| 92 |
$this->entity_class = $entity_class; |
| 93 |
} |
| 94 |
|
| 95 |
/** |
| 96 |
* Executes select query. |
| 97 |
* |
| 98 |
* @param QueryFilter $filter Filter for query. |
| 99 |
* |
| 100 |
* @return Entity[] A list of found entities ot empty array. |
| 101 |
* @throws QueryFilterInvalidParamException If filter condition is invalid. |
| 102 |
*/ |
| 103 |
public function select( QueryFilter $filter = null ) { |
| 104 |
/** |
| 105 |
* Entity object. |
| 106 |
* |
| 107 |
* @var Entity $entity |
| 108 |
*/ |
| 109 |
$entity = new $this->entity_class(); |
| 110 |
$type = $entity->getConfig()->getType(); |
| 111 |
|
| 112 |
$query = "SELECT * FROM {$this->get_table_name()} WHERE type = '$type' "; |
| 113 |
if ( $filter ) { |
| 114 |
$query .= $this->apply_query_filter( $filter, IndexHelper::mapFieldsToIndexes( $entity ) ); |
| 115 |
} |
| 116 |
|
| 117 |
$raw_results = array(); |
| 118 |
if ( $this->table_exists() ) { |
| 119 |
$raw_results = $this->db->get_results( $query, ARRAY_A ); |
| 120 |
if ( ! is_array( $raw_results ) ) { |
| 121 |
$raw_results = array(); |
| 122 |
} |
| 123 |
} |
| 124 |
if ( $this->table_exists( true ) ) { |
| 125 |
// If the legacy table exists the data may be there. |
| 126 |
$query = str_replace( $this->get_table_name(), $this->get_legacy_table_name(), $query ); |
| 127 |
$legacy_raw_results = $this->db->get_results( $query, ARRAY_A ); |
| 128 |
if ( ! is_array( $legacy_raw_results ) ) { |
| 129 |
$legacy_raw_results = array(); |
| 130 |
} |
| 131 |
$raw_results = array_merge( $raw_results, $legacy_raw_results ); |
| 132 |
} |
| 133 |
|
| 134 |
return $this->translateToEntities( $raw_results ); |
| 135 |
} |
| 136 |
|
| 137 |
/** |
| 138 |
* Executes select query and returns first result. |
| 139 |
* |
| 140 |
* @param QueryFilter $filter Filter for query. |
| 141 |
* |
| 142 |
* @return Entity|null First found entity or NULL. |
| 143 |
* @throws QueryFilterInvalidParamException If filter condition is invalid. |
| 144 |
*/ |
| 145 |
public function selectOne( QueryFilter $filter = null ) { |
| 146 |
if ( ! $filter ) { |
| 147 |
$filter = new QueryFilter(); |
| 148 |
} |
| 149 |
|
| 150 |
$filter->setLimit( 1 ); |
| 151 |
$results = $this->select( $filter ); |
| 152 |
|
| 153 |
return ! empty( $results ) ? $results[0] : null; |
| 154 |
} |
| 155 |
|
| 156 |
/** |
| 157 |
* Executes insert query and returns ID of created entity. Entity will be updated with new ID. |
| 158 |
* |
| 159 |
* @param Entity $entity Entity to be saved. |
| 160 |
* |
| 161 |
* @return int Identifier of saved entity. |
| 162 |
*/ |
| 163 |
public function save( Entity $entity ) { |
| 164 |
if ( ! $this->table_exists() ) { |
| 165 |
return -1; |
| 166 |
} |
| 167 |
|
| 168 |
if ( $entity->getId() ) { |
| 169 |
$this->update( $entity ); |
| 170 |
|
| 171 |
return $entity->getId(); |
| 172 |
} |
| 173 |
|
| 174 |
return $this->save_entity_to_storage( $entity ); |
| 175 |
} |
| 176 |
|
| 177 |
/** |
| 178 |
* Executes update query and returns success flag. |
| 179 |
* |
| 180 |
* @param Entity $entity Entity to be updated. |
| 181 |
* |
| 182 |
* @return bool TRUE if operation succeeded; otherwise, FALSE. |
| 183 |
*/ |
| 184 |
public function update( Entity $entity ) { |
| 185 |
if ( ! $this->table_exists() ) { |
| 186 |
return false; |
| 187 |
} |
| 188 |
$item = $this->prepare_entity_for_storage( $entity ); |
| 189 |
$where = array( 'id' => $entity->getId() ); |
| 190 |
|
| 191 |
// Check if entity wasn't already migrated and migrate it including the new data. |
| 192 |
if ( $this->table_exists( true ) && $this->entity_exists( $entity->getId(), true ) ) { |
| 193 |
if ( 1 !== $this->db->update( $this->get_legacy_table_name(), $item, $where ) ) { |
| 194 |
return false; |
| 195 |
} |
| 196 |
// Read from the legacy table. |
| 197 |
$raw_results = $this->db->get_results( "SELECT * FROM {$this->get_legacy_table_name()} WHERE id = {$entity->getId()} LIMIT 1;", ARRAY_A ); |
| 198 |
if ( empty( $raw_results ) ) { |
| 199 |
return false; |
| 200 |
} |
| 201 |
$entity = $this->translateToEntities( $raw_results )[0] ?? null; |
| 202 |
if ( ! $entity ) { |
| 203 |
return false; |
| 204 |
} |
| 205 |
// Insert into the new table. |
| 206 |
$item = $this->prepare_entity_for_storage( $entity ); |
| 207 |
if ( false !== $this->db->insert( $this->get_table_name(), $item ) ) { |
| 208 |
return false; |
| 209 |
} |
| 210 |
// Delete the row from the legacy table. |
| 211 |
$this->db->delete( $this->get_legacy_table_name(), $where ); |
| 212 |
return true; |
| 213 |
} |
| 214 |
// Only one record should be updated. |
| 215 |
return 1 === $this->db->update( $this->get_table_name(), $item, $where ); |
| 216 |
} |
| 217 |
|
| 218 |
/** |
| 219 |
* Executes delete query and returns success flag. |
| 220 |
* |
| 221 |
* @param Entity $entity Entity to be deleted. |
| 222 |
* |
| 223 |
* @return bool TRUE if operation succeeded; otherwise, FALSE. |
| 224 |
*/ |
| 225 |
public function delete( Entity $entity ) { |
| 226 |
$where = array( 'id' => $entity->getId() ); |
| 227 |
$deleted = false; |
| 228 |
if ( $this->table_exists() ) { |
| 229 |
$result = $this->db->delete( $this->get_table_name(), $where ); |
| 230 |
$deleted = ! empty( $result ); |
| 231 |
} |
| 232 |
if ( $this->table_exists( true ) ) { |
| 233 |
// Delete from legacy table. |
| 234 |
$result = $this->db->delete( $this->get_legacy_table_name(), $where ); |
| 235 |
$deleted = $deleted || ! empty( $result ); |
| 236 |
} |
| 237 |
return $deleted; |
| 238 |
} |
| 239 |
|
| 240 |
/** |
| 241 |
* Counts records that match filter criteria. |
| 242 |
* |
| 243 |
* @param QueryFilter $filter Filter for query. |
| 244 |
* |
| 245 |
* @return int Number of records that match filter criteria. |
| 246 |
* @throws QueryFilterInvalidParamException If filter condition is invalid. |
| 247 |
*/ |
| 248 |
public function count( QueryFilter $filter = null ) { |
| 249 |
/** |
| 250 |
* Entity object. |
| 251 |
* |
| 252 |
* @var Entity $entity |
| 253 |
*/ |
| 254 |
$entity = new $this->entity_class(); |
| 255 |
$type = $entity->getConfig()->getType(); |
| 256 |
|
| 257 |
$query = "SELECT COUNT(*) as `total` FROM {$this->get_table_name()} WHERE type = '$type' "; |
| 258 |
if ( $filter ) { |
| 259 |
$query .= $this->apply_query_filter( $filter, IndexHelper::mapFieldsToIndexes( $entity ) ); |
| 260 |
} |
| 261 |
$count = 0; |
| 262 |
if ( $this->table_exists() ) { |
| 263 |
$result = $this->db->get_results( $query, ARRAY_A ); |
| 264 |
$count += empty( $result[0]['total'] ) || ! is_numeric( $result[0]['total'] ) ? 0 : (int) $result[0]['total']; |
| 265 |
} |
| 266 |
if ( $this->table_exists( true ) ) { |
| 267 |
// If the legacy table exists, count the data there too. |
| 268 |
$query = str_replace( $this->get_table_name(), $this->get_legacy_table_name(), $query ); |
| 269 |
$result = $this->db->get_results( $query, ARRAY_A ); |
| 270 |
$count += empty( $result[0]['total'] ) || ! is_numeric( $result[0]['total'] ) ? 0 : (int) $result[0]['total']; |
| 271 |
} |
| 272 |
return $count; |
| 273 |
} |
| 274 |
|
| 275 |
/** |
| 276 |
* Escapes provided value. |
| 277 |
* |
| 278 |
* @param mixed $value Value to be escaped. |
| 279 |
* |
| 280 |
* @return string Escaped value. |
| 281 |
*/ |
| 282 |
protected function escape( $value ) { |
| 283 |
return addslashes( strval( $value ) ); |
| 284 |
} |
| 285 |
|
| 286 |
/** |
| 287 |
* Checks if value exists and escapes it if it's not. |
| 288 |
* |
| 289 |
* @param mixed $value Value to be escaped. |
| 290 |
* |
| 291 |
* @return string Escaped value. |
| 292 |
*/ |
| 293 |
protected function escape_value( $value ) { |
| 294 |
return null === $value ? 'NULL' : "'" . $this->escape( $value ) . "'"; |
| 295 |
} |
| 296 |
|
| 297 |
/** |
| 298 |
* Builds WHERE part of select query. |
| 299 |
* |
| 300 |
* @param mixed[]$filter_by Filter conditions in query. |
| 301 |
* |
| 302 |
* @return string Where condition. |
| 303 |
*/ |
| 304 |
protected function build_condition( $filter_by ) { |
| 305 |
if ( empty( $filter_by ) ) { |
| 306 |
return ''; |
| 307 |
} |
| 308 |
|
| 309 |
$where = array(); |
| 310 |
foreach ( $filter_by as $key => $value ) { |
| 311 |
if ( null === $value ) { |
| 312 |
$where[] = "`$key` IS NULL"; |
| 313 |
} else { |
| 314 |
$where[] = "`$key` = '" . $this->escape( $value ) . "'"; |
| 315 |
} |
| 316 |
} |
| 317 |
|
| 318 |
return ' WHERE ' . implode( ' AND ', $where ); |
| 319 |
} |
| 320 |
|
| 321 |
/** |
| 322 |
* Converts filter value to index string representation. |
| 323 |
* |
| 324 |
* @param QueryCondition $condition Query condition. |
| 325 |
* |
| 326 |
* @return string|null Converted value. |
| 327 |
*/ |
| 328 |
protected function convert_value( QueryCondition $condition ) { |
| 329 |
$value = IndexHelper::castFieldValue( $condition->getValue(), $condition->getValueType() ); |
| 330 |
switch ( $condition->getValueType() ) { |
| 331 |
case 'string': |
| 332 |
$value = $this->escape_value( $condition->getValue() ); |
| 333 |
break; |
| 334 |
case 'array': |
| 335 |
/** |
| 336 |
* Values |
| 337 |
* |
| 338 |
* @var mixed[] $values |
| 339 |
*/ |
| 340 |
$values = $condition->getValue(); |
| 341 |
$escaped_values = array(); |
| 342 |
foreach ( $values as $value ) { |
| 343 |
$escaped_values[] = is_string( $value ) ? $this->escape_value( $value ) : $value; |
| 344 |
} |
| 345 |
|
| 346 |
$value = '(' . implode( ', ', $escaped_values ) . ')'; |
| 347 |
break; |
| 348 |
default: |
| 349 |
// 'integer', 'dateTime','boolean','double' |
| 350 |
$value = $this->escape_value( $value ); |
| 351 |
break; |
| 352 |
} |
| 353 |
|
| 354 |
return $value; |
| 355 |
} |
| 356 |
|
| 357 |
/** |
| 358 |
* Builds query filter part of the query. |
| 359 |
* |
| 360 |
* @param QueryFilter $filter Query filter object. |
| 361 |
* @param mixed[] $field_index_map Property to index number map. |
| 362 |
* |
| 363 |
* @return string Query filter addendum. |
| 364 |
* @throws QueryFilterInvalidParamException If filter condition is invalid. |
| 365 |
*/ |
| 366 |
protected function apply_query_filter( QueryFilter $filter, array $field_index_map = array() ) { |
| 367 |
$query = ''; |
| 368 |
$conditions = $filter->getConditions(); |
| 369 |
if ( ! empty( $conditions ) ) { |
| 370 |
$query .= ' AND ('; |
| 371 |
$first = true; |
| 372 |
foreach ( $conditions as $condition ) { |
| 373 |
$this->validate_index_column( $condition->getColumn(), $field_index_map ); |
| 374 |
$chain_op = $first ? '' : $condition->getChainOperator(); |
| 375 |
$first = false; |
| 376 |
$column = 'id' === $condition->getColumn() ? 'id' : 'index_' . $field_index_map[ $condition->getColumn() ]; |
| 377 |
$operator = $condition->getOperator(); |
| 378 |
$query .= " $chain_op $column $operator " . $this->convert_value( $condition ); |
| 379 |
} |
| 380 |
|
| 381 |
$query .= ')'; |
| 382 |
} |
| 383 |
|
| 384 |
if ( $filter->getOrderByColumn() ) { |
| 385 |
$this->validate_index_column( $filter->getOrderByColumn(), $field_index_map ); |
| 386 |
$order_index = 'id' === $filter->getOrderByColumn() ? 'id' : 'index_' . $field_index_map[ $filter->getOrderByColumn() ]; |
| 387 |
$query .= " ORDER BY {$order_index} {$filter->getOrderDirection()}"; |
| 388 |
} |
| 389 |
|
| 390 |
if ( $filter->getLimit() ) { |
| 391 |
$offset = (int) $filter->getOffset(); |
| 392 |
$query .= " LIMIT {$offset}, {$filter->getLimit()}"; |
| 393 |
} |
| 394 |
|
| 395 |
return $query; |
| 396 |
} |
| 397 |
|
| 398 |
/** |
| 399 |
* Transforms raw database query rows to entities. |
| 400 |
* |
| 401 |
* @param mixed[]$result Raw database query result. |
| 402 |
* |
| 403 |
* @return Entity[] Array of transformed entities. |
| 404 |
*/ |
| 405 |
protected function translateToEntities( array $result ) { |
| 406 |
/** |
| 407 |
* Array of decoded entities. |
| 408 |
* |
| 409 |
* @var Entity[] $entities |
| 410 |
*/ |
| 411 |
$entities = array(); |
| 412 |
foreach ( $result as $item ) { |
| 413 |
/** |
| 414 |
* Raw data. |
| 415 |
* |
| 416 |
* @var mixed[] $item |
| 417 |
*/ |
| 418 |
if ( ! isset( $item['data'] ) || ! isset( $item['id'] ) ) { |
| 419 |
continue; |
| 420 |
} |
| 421 |
$data = (array) json_decode( strval( $item['data'] ), true ); |
| 422 |
/** |
| 423 |
* Entity object. |
| 424 |
* |
| 425 |
* @var Entity $entity |
| 426 |
*/ |
| 427 |
$entity = isset( $data['class_name'] ) ? new $data['class_name']() : new $this->entity_class(); |
| 428 |
$entity->inflate( $data ); |
| 429 |
if ( is_numeric( $item['id'] ) ) { |
| 430 |
$entity->setId( (int) $item['id'] ); |
| 431 |
} |
| 432 |
|
| 433 |
$entities[] = $entity; |
| 434 |
} |
| 435 |
|
| 436 |
return $entities; |
| 437 |
} |
| 438 |
|
| 439 |
/** |
| 440 |
* Saves entity to system storage. |
| 441 |
* |
| 442 |
* @param Entity $entity Entity to be stored. |
| 443 |
* |
| 444 |
* @return int Inserted entity identifier. |
| 445 |
*/ |
| 446 |
protected function save_entity_to_storage( Entity $entity ) { |
| 447 |
if ( ! $this->table_exists() ) { |
| 448 |
return -1; |
| 449 |
} |
| 450 |
$storage_item = $this->prepare_entity_for_storage( $entity ); |
| 451 |
|
| 452 |
$this->db->insert( $this->get_table_name(), $storage_item ); |
| 453 |
|
| 454 |
$insert_id = (int) $this->db->insert_id; |
| 455 |
$entity->setId( $insert_id ); |
| 456 |
|
| 457 |
return $insert_id; |
| 458 |
} |
| 459 |
|
| 460 |
/** |
| 461 |
* Prepares entity in format for storage. |
| 462 |
* |
| 463 |
* @param Entity $entity Entity to be stored. |
| 464 |
* |
| 465 |
* @return mixed[] Item prepared for storage. |
| 466 |
*/ |
| 467 |
protected function prepare_entity_for_storage( Entity $entity ) { |
| 468 |
$indexes = IndexHelper::transformFieldsToIndexes( $entity ); |
| 469 |
$storage_item = array( |
| 470 |
'type' => $entity->getConfig()->getType(), |
| 471 |
'index_1' => null, |
| 472 |
'index_2' => null, |
| 473 |
'index_3' => null, |
| 474 |
'index_4' => null, |
| 475 |
'index_5' => null, |
| 476 |
'index_6' => null, |
| 477 |
'index_7' => null, |
| 478 |
'data' => \wp_json_encode( $entity->toArray() ), |
| 479 |
); |
| 480 |
|
| 481 |
if ( $entity->getId() ) { |
| 482 |
$storage_item['id'] = $entity->getId(); |
| 483 |
} |
| 484 |
|
| 485 |
foreach ( $indexes as $index => $value ) { |
| 486 |
$storage_item[ 'index_' . $index ] = $value; |
| 487 |
} |
| 488 |
|
| 489 |
return $storage_item; |
| 490 |
} |
| 491 |
|
| 492 |
/** |
| 493 |
* Validates if column can be filtered or sorted by. |
| 494 |
* |
| 495 |
* @param string $column Column name. |
| 496 |
* @param mixed[] $index_map Index map. |
| 497 |
* |
| 498 |
* @throws QueryFilterInvalidParamException If filter condition is invalid. |
| 499 |
* |
| 500 |
* @return void |
| 501 |
*/ |
| 502 |
protected function validate_index_column( $column, array $index_map ) { |
| 503 |
if ( 'id' !== $column && ! array_key_exists( $column, $index_map ) ) { |
| 504 |
throw new QueryFilterInvalidParamException( esc_html__( 'Column is not id or index.', 'sequra' ) ); |
| 505 |
} |
| 506 |
} |
| 507 |
|
| 508 |
/** |
| 509 |
* Delete all the entities. |
| 510 |
* |
| 511 |
* @param string|null $store_id Delete entities from this store. Passing null will delete all entities. |
| 512 |
*/ |
| 513 |
public function delete_all( $store_id = null ): bool { |
| 514 |
$deleted = false; |
| 515 |
$sql = 'DELETE FROM ' . \sanitize_text_field( $this->get_table_name() ); |
| 516 |
if ( $store_id ) { |
| 517 |
$column = $this->get_store_id_index_column(); |
| 518 |
if ( ! $column ) { |
| 519 |
return false; |
| 520 |
} |
| 521 |
$sql .= ' WHERE ' . \sanitize_text_field( $column ) . ' = ' . \sanitize_text_field( $store_id ); |
| 522 |
} |
| 523 |
if ( $this->table_exists() ) { |
| 524 |
$result = $this->db->query( $sql ); |
| 525 |
$deleted = ! empty( $result ); |
| 526 |
} |
| 527 |
if ( $this->table_exists( true ) ) { |
| 528 |
$result = $this->db->query( str_replace( $this->get_table_name(), $this->get_legacy_table_name(), $sql ) ); |
| 529 |
$deleted = $deleted || ! empty( $result ); |
| 530 |
} |
| 531 |
return $deleted; |
| 532 |
} |
| 533 |
|
| 534 |
/** |
| 535 |
* Get the index column name that stores the store ID. |
| 536 |
* |
| 537 |
* @return string Index column name or empty string if not applicable. |
| 538 |
*/ |
| 539 |
protected function get_store_id_index_column(): string { |
| 540 |
return 'index_1'; |
| 541 |
} |
| 542 |
|
| 543 |
/** |
| 544 |
* Check if table exists in the database. |
| 545 |
* |
| 546 |
* @param boolean $legacy If true, check for legacy table. |
| 547 |
*/ |
| 548 |
public function table_exists( $legacy = false ): bool { |
| 549 |
$table_name = \sanitize_text_field( ! $legacy ? $this->get_table_name() : $this->get_legacy_table_name() ); |
| 550 |
return $this->db->get_var( "SHOW TABLES LIKE '{$table_name}'" ) === $table_name; |
| 551 |
} |
| 552 |
|
| 553 |
/** |
| 554 |
* Remove entities that are older than a certain date or that are invalid. |
| 555 |
* This performs a cleanup of the repository data. |
| 556 |
*/ |
| 557 |
public function delete_old_and_invalid() { |
| 558 |
// Do nothing by default. Implement in child class if needed. |
| 559 |
} |
| 560 |
|
| 561 |
/** |
| 562 |
* Check if the index exists. |
| 563 |
* |
| 564 |
* @param Table_Index $index The index to check. |
| 565 |
* @return bool True if the index exists, false otherwise. |
| 566 |
*/ |
| 567 |
public function index_exists( $index ) { |
| 568 |
$index_name = \sanitize_key( $index->name ); |
| 569 |
return ! empty( $this->db->get_col( "SHOW INDEX FROM `{$this->get_table_name()}` WHERE Key_name = '{$index_name}'" ) ); |
| 570 |
} |
| 571 |
|
| 572 |
/** |
| 573 |
* Add an index to the table. |
| 574 |
* |
| 575 |
* @param Table_Index $index The index. |
| 576 |
* @return bool True if the index was added or already exists, false otherwise. |
| 577 |
*/ |
| 578 |
public function add_index( $index ) { |
| 579 |
if ( $this->index_exists( $index ) ) { |
| 580 |
return true; |
| 581 |
} |
| 582 |
$index_name = \sanitize_key( $index->name ); |
| 583 |
$columns = $index->columns; |
| 584 |
foreach ( $columns as &$column ) { |
| 585 |
$column = '`' . \sanitize_key( $column ) . '`'; |
| 586 |
} |
| 587 |
$columns = implode( ',', $columns ); |
| 588 |
return false !== $this->db->query( "ALTER TABLE `{$this->get_table_name()}` ADD INDEX `{$index_name}` ({$columns})" ); |
| 589 |
} |
| 590 |
|
| 591 |
/** |
| 592 |
* Execute the migration process one by one. |
| 593 |
* This implementation is intended for migrations that don't change the table structure. |
| 594 |
*/ |
| 595 |
public function migrate_next_row() { |
| 596 |
if ( ! $this->table_exists() || ! $this->table_exists( true ) ) { |
| 597 |
return; |
| 598 |
} |
| 599 |
$raw_results = $this->db->get_results( "SELECT * FROM {$this->get_legacy_table_name()} LIMIT 1;", ARRAY_A ); |
| 600 |
if ( ! is_array( $raw_results ) ) { |
| 601 |
return; |
| 602 |
} |
| 603 |
|
| 604 |
$entity = $this->translateToEntities( $raw_results )[0] ?? null; |
| 605 |
if ( ! $entity ) { |
| 606 |
return; |
| 607 |
} |
| 608 |
// Check if entity already exists in the table. |
| 609 |
if ( $this->entity_exists( $entity->getId() ) ) { |
| 610 |
return; |
| 611 |
} |
| 612 |
|
| 613 |
$storage_item = $this->prepare_entity_for_storage( $entity ); |
| 614 |
$result = $this->db->insert( $this->get_table_name(), $storage_item ); |
| 615 |
if ( false !== $result ) { |
| 616 |
// Delete the row from the legacy table. |
| 617 |
$this->db->delete( $this->get_legacy_table_name(), array( 'id' => $entity->getId() ) ); |
| 618 |
} |
| 619 |
} |
| 620 |
|
| 621 |
/** |
| 622 |
* Check if the migration process is complete. |
| 623 |
* |
| 624 |
* @return bool True if the migration process is complete, false otherwise. |
| 625 |
*/ |
| 626 |
public function is_migration_complete() { |
| 627 |
// Check if the legacy table exists. |
| 628 |
if ( $this->table_exists( true ) ) { |
| 629 |
return false; |
| 630 |
} |
| 631 |
// Check if the indexes exist. |
| 632 |
$indexes = $this->get_required_indexes(); |
| 633 |
foreach ( $indexes as $index ) { |
| 634 |
if ( ! $this->index_exists( $index ) ) { |
| 635 |
return false; |
| 636 |
} |
| 637 |
} |
| 638 |
|
| 639 |
return true; |
| 640 |
} |
| 641 |
|
| 642 |
/** |
| 643 |
* Get the SQL statement to create the table without the indexes definition. |
| 644 |
* Resulting string should include an additional %s placeholder for the indexes. |
| 645 |
* |
| 646 |
* @return string The SQL statement to create the table. |
| 647 |
*/ |
| 648 |
protected function get_create_table_sql() { |
| 649 |
$charset_collate = $this->db->get_charset_collate(); |
| 650 |
return "CREATE TABLE {$this->get_table_name()} ( |
| 651 |
`id` BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT, |
| 652 |
`type` VARCHAR(255), |
| 653 |
`index_1` VARCHAR(127), |
| 654 |
`index_2` VARCHAR(127), |
| 655 |
`index_3` VARCHAR(127), |
| 656 |
`index_4` VARCHAR(127), |
| 657 |
`index_5` VARCHAR(127), |
| 658 |
`index_6` VARCHAR(127), |
| 659 |
`index_7` VARCHAR(127), |
| 660 |
`data` LONGTEXT, |
| 661 |
PRIMARY KEY (id) %s) $charset_collate;"; |
| 662 |
} |
| 663 |
|
| 664 |
/** |
| 665 |
* Create the table if it doesn't exist. |
| 666 |
* |
| 667 |
* @return bool True if the table was created successfully, false otherwise. |
| 668 |
*/ |
| 669 |
public function create_table() { |
| 670 |
$indexes = array(); |
| 671 |
foreach ( $this->get_required_indexes() as $index ) { |
| 672 |
$index_name = $index->name; |
| 673 |
$columns = $index->columns; |
| 674 |
foreach ( $columns as &$column ) { |
| 675 |
$column = '`' . \sanitize_key( $column ) . '`'; |
| 676 |
} |
| 677 |
$columns = implode( ',', $columns ); |
| 678 |
$indexes[] = "KEY `{$index_name}` ({$columns})"; |
| 679 |
} |
| 680 |
$indexes = implode( ', ', $indexes ); |
| 681 |
if ( ! empty( $indexes ) ) { |
| 682 |
$indexes = ', ' . $indexes; |
| 683 |
} |
| 684 |
|
| 685 |
$sql = sprintf( $this->get_create_table_sql(), $indexes ); |
| 686 |
require_once ABSPATH . 'wp-admin/includes/upgrade.php'; |
| 687 |
\dbDelta( $sql ); |
| 688 |
return $this->table_exists(); |
| 689 |
} |
| 690 |
|
| 691 |
/** |
| 692 |
* Make sure that the required tables for the migration are created. |
| 693 |
* |
| 694 |
* @return bool |
| 695 |
*/ |
| 696 |
public function prepare_tables_for_migration() { |
| 697 |
if ( $this->table_exists( true ) ) { |
| 698 |
// If the legacy table already exists, we don't need to do anything. |
| 699 |
return true; |
| 700 |
} |
| 701 |
// Rename the table to legacy table. |
| 702 |
if ( false === $this->db->query( "RENAME TABLE {$this->get_table_name()} TO {$this->get_legacy_table_name()};" ) ) { |
| 703 |
return false; |
| 704 |
} |
| 705 |
|
| 706 |
// Create the table if not exists. |
| 707 |
if ( ! $this->create_table() ) { |
| 708 |
return false; |
| 709 |
} |
| 710 |
// Add the auto-increment next value to the new table. |
| 711 |
$raw_id = $this->db->get_var( "SELECT MAX(id) FROM {$this->get_legacy_table_name()};" ); |
| 712 |
$auto_increment = null !== $raw_id && is_numeric( $raw_id ) ? (int) $raw_id + 1 : 1; |
| 713 |
if ( false === $this->db->query( "ALTER TABLE {$this->get_table_name()} AUTO_INCREMENT = {$auto_increment};" ) ) { |
| 714 |
return false; |
| 715 |
} |
| 716 |
|
| 717 |
return true; |
| 718 |
} |
| 719 |
|
| 720 |
/** |
| 721 |
* Evaluates if the legacy table should be removed and if so, removes it. |
| 722 |
* |
| 723 |
* @return bool True if the legacy table was removed or did not exist, false otherwise. |
| 724 |
*/ |
| 725 |
public function maybe_remove_legacy_table() { |
| 726 |
if ( ! $this->table_exists( true ) ) { |
| 727 |
return true; |
| 728 |
} |
| 729 |
$raw_results = $this->db->get_results( "SELECT 1 FROM `{$this->get_legacy_table_name()}` LIMIT 1;", ARRAY_A ); |
| 730 |
if ( ! empty( $raw_results ) ) { |
| 731 |
// Legacy table is not empty, do not remove it. |
| 732 |
return false; |
| 733 |
} |
| 734 |
return false !== $this->db->query( "DROP TABLE IF EXISTS `{$this->get_legacy_table_name()}`;" ); |
| 735 |
} |
| 736 |
|
| 737 |
/** |
| 738 |
* Get a list of indexes that are required for the table. |
| 739 |
* |
| 740 |
* @return Table_Index[] The list of indexes. |
| 741 |
*/ |
| 742 |
public function get_required_indexes() { |
| 743 |
return array( |
| 744 |
new Table_Index( $this->get_table_name() . '_type', array( 'type' ) ), |
| 745 |
); |
| 746 |
} |
| 747 |
|
| 748 |
/** |
| 749 |
* Check if entity exists in the database. |
| 750 |
* |
| 751 |
* @param int $id Entity ID. |
| 752 |
* @param bool $legacy If true, check for legacy table. |
| 753 |
* @return bool True if entity exists, false otherwise. |
| 754 |
*/ |
| 755 |
protected function entity_exists( $id, $legacy = false ): bool { |
| 756 |
$table_name = $legacy ? $this->get_legacy_table_name() : $this->get_table_name(); |
| 757 |
$raw_results = $this->db->get_results( "SELECT 1 FROM `$table_name` WHERE id = {$id} LIMIT 1;", ARRAY_A ); |
| 758 |
return ! empty( $raw_results ); |
| 759 |
} |
| 760 |
} |
| 761 |
|
