Test Failed
Pull Request — master (#12)
by
unknown
12:23
created

Upserter::convertInsertValues()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 8
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 5
c 0
b 0
f 0
dl 0
loc 8
rs 10
cc 1
nc 1
nop 1
1
<?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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