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<?php |
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namespace kalanis\kw_mapper\Mappers; |
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use kalanis\kw_mapper\MapperException; |
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use kalanis\kw_mapper\Records; |
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/** |
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* Trait TFinder |
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* @package kalanis\kw_mapper\Mappers |
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* Abstract for manipulation with file content as table |
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*/ |
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trait TFinder |
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{ |
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/** @var Records\ARecord[] */ |
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protected $records = []; |
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/** |
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* @param Records\ARecord $record |
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* @param bool $usePks |
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* @param bool $wantFromStorage |
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* @throws MapperException |
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* @return Records\ARecord[] |
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*/ |
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protected function findMatched(Records\ARecord $record, bool $usePks = false, bool $wantFromStorage = false): array |
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{ |
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$this->loadOnDemand($record); |
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$toProcess = array_combine(array_keys($this->records), array_values($this->records)); // copy array - records will be removed when don't match |
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$toCompare = $this->getArrayToCompare($record, $usePks, $wantFromStorage); |
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if ($usePks) { // nothing to get when any necessary primary key is unknown |
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foreach ($record->getMapper()->getPrimaryKeys() as $primaryKey) { |
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if (!isset($toCompare[$primaryKey])) { |
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return []; |
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} |
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} |
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} |
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// through relations |
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foreach ($toCompare as $relationKey => $compareValue) { |
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foreach ($this->records as $positionKey => $knownRecord) { |
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if ( !isset($toProcess[$positionKey]) ) { // not twice |
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continue; |
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} |
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if ( !$knownRecord->offsetExists($relationKey) ) { // unknown relation key in record is not allowed into compare |
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unset($toProcess[$positionKey]); |
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continue; |
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} |
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if ( strval($knownRecord->offsetGet($relationKey)) != strval($compareValue) ) { |
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unset($toProcess[$positionKey]); |
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continue; |
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} |
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} |
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} |
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return $toProcess; |
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} |
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/** |
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* More records on one mapper - reload with correct one |
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* @param Records\ARecord $record |
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* @throws MapperException |
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*/ |
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protected function loadOnDemand(Records\ARecord $record): void |
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{ |
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if (empty($this->records)) { |
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$this->records = $this->loadSource($record); |
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} else { |
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$test = reset($this->records); |
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if (get_class($test) != get_class($record)) { // reload other data - changed record |
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// @codeCoverageIgnoreStart |
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$this->records = $this->loadSource($record); |
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} |
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// @codeCoverageIgnoreEnd |
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} |
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} |
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/** |
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* @param Records\ARecord $record |
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* @param bool $usePks |
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* @param bool $wantFromStorage |
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* @throws MapperException |
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* @return array<string|int, mixed> |
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*/ |
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protected function getArrayToCompare(Records\ARecord $record, bool $usePks, bool $wantFromStorage): array |
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{ |
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$stored = []; |
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$written = []; |
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foreach ($record as $key => $item) { |
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$entry = $record->getEntry($key); |
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if ($usePks && !in_array($key, $record->getMapper()->getPrimaryKeys())) { |
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continue; |
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} |
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if (false === $entry->getData() && !$entry->isFromStorage()) { |
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continue; |
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} |
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if ($entry->isFromStorage()) { |
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$stored[$key] = $entry->getData(); |
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} else { |
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$written[$key] = $entry->getData(); |
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} |
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} |
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return $wantFromStorage ? (empty($stored) ? $written : $stored) : array_merge($stored, $written); |
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} |
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/** |
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* @param Records\ARecord $record |
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* @throws MapperException |
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* @return Records\ARecord[] |
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*/ |
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abstract protected function loadSource(Records\ARecord $record): array; |
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/** |
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* @return string[] |
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*/ |
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abstract public function getPrimaryKeys(): array; |
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/** |
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* @return array<string|int, string|int> |
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*/ |
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abstract public function getRelations(): array; |
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} |
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alex-kalanis /
kw_mapper
