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<?php |
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declare(strict_types=1); |
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namespace Umbrellio\TableSync\Integration\Laravel\Receive\Upserter; |
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use Illuminate\Support\Arr; |
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use Illuminate\Support\Facades\DB; |
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use Umbrellio\TableSync\Integration\Laravel\Receive\MessageData\MessageData; |
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use Umbrellio\TableSync\Integration\Laravel\Receive\Upserter\ConflictConditionResolverContract; |
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class Upserter |
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{ |
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private $conflictConditionResolver; |
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public function __construct(ConflictConditionResolverContract $conflictConditionResolver) |
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{ |
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$this->conflictConditionResolver = $conflictConditionResolver; |
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} |
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// todo via modern expressive not existing query builder |
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public function upsert(MessageData $messageData, float $version): void |
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{ |
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if (empty($messageData->getData())) { |
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return; |
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} |
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$data = $this->addVersionToItems($messageData->getData(), $version); |
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$columns = array_keys($data[0]); |
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$columnString = implode(',', array_map(function (string $column): string { |
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return "\"{$column}\""; |
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}, $columns)); |
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$values = $this->convertInsertValues($data); |
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$target = $this->conflictConditionResolver->resolve($messageData); |
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$valueBindings = Arr::flatten($data); |
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$updateColumns = array_diff($columns, $messageData->getTargetKeys()); |
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$updateSpecString = $this->updateSpec($updateColumns); |
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$sql = <<<CODE_SAMPLE |
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INSERT INTO {$messageData->getTable()} ({$columnString}) VALUES {$values} |
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ON CONFLICT {$target} |
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DO UPDATE |
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SET {$updateSpecString} |
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WHERE {$messageData->getTable()}.version < ? |
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CODE_SAMPLE; |
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DB::statement($sql, array_merge($valueBindings, [$version])); |
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} |
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private function addVersionToItems(array $items, float $version): array |
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{ |
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return array_map(function ($item) use ($version) { |
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return array_merge($item, compact('version')); |
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}, $items); |
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} |
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private function convertInsertValues(array $items): string |
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{ |
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$values = array_map(function (array $item) { |
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$item = $this->implodedPlaceholders($item); |
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return "({$item})"; |
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}, $items); |
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return implode(',', $values); |
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} |
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private function updateSpec(array $columns): string |
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{ |
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$values = array_map(function (string $column) { |
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return "\"{$column}\" = EXCLUDED.{$column}"; |
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}, $columns); |
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return implode(',', $values); |
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} |
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private function implodedPlaceholders(array $items, string $placeholder = '?'): string |
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{ |
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return implode(',', array_map(function () use ($placeholder) { |
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return $placeholder; |
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}, $items)); |
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} |
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} |
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umbrellio /
php-table-sync
