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<?php |
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declare(strict_types=1); |
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namespace LaravelFreelancerNL\Aranguent\Query\Concerns; |
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use Illuminate\Database\Query\Builder as IlluminateBuilder; |
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use LaravelFreelancerNL\Aranguent\Query\Builder; |
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trait CompilesAggregates |
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{ |
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/** |
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* Compile an aggregated select clause. |
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* |
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* @param \Illuminate\Database\Query\Builder $query |
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* @param array<mixed> $aggregate |
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* @return string |
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*/ |
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protected function compileAggregate(IlluminateBuilder $query, $aggregate) |
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{ |
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$method = 'compile' . ucfirst($aggregate['function']); |
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return $this->$method($query, $aggregate); |
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} |
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/** |
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* Compile AQL for average aggregate. |
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* |
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* @param array<mixed> $aggregate |
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* @return string |
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* @throws \Exception |
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*/ |
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protected function compileAvg(Builder $query, array $aggregate) |
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{ |
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$column = $this->normalizeColumn($query, $aggregate['columns'][0]); |
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return "COLLECT AGGREGATE aggregateResult = AVERAGE($column)"; |
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} |
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/** |
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* Compile AQL for count aggregate. |
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* |
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* @SuppressWarnings("PHPMD.UnusedFormalParameter") |
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* @param Builder $query |
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* @return string |
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*/ |
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protected function compileCount(Builder $query) |
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{ |
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return "COLLECT WITH COUNT INTO aggregateResult"; |
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} |
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/** |
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* Compile an exists statement into AQL. |
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* |
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* @param IlluminateBuilder $query |
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* @return string |
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*/ |
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public function compileExists(IlluminateBuilder $query) |
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{ |
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$query->columns = [$query->from]; |
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$select = $this->compileSelect($query); |
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return 'RETURN { exists: LENGTH((' . $select . ')) > 0 ? true : false }'; |
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} |
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/** |
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* Compile AQL for max aggregate. |
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* |
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* @param array<mixed> $aggregate |
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* @return string |
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* @throws \Exception |
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*/ |
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protected function compileMax(Builder $query, array $aggregate) |
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{ |
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$column = $this->normalizeColumn($query, $aggregate['columns'][0]); |
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return "COLLECT AGGREGATE aggregateResult = MAX($column)"; |
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} |
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/** |
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* Compile AQL for min aggregate. |
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* |
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* @param Builder $query |
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* @param array<mixed> $aggregate |
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* @return string |
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* @throws \Exception |
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*/ |
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protected function compileMin(Builder $query, array $aggregate) |
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{ |
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$column = $this->normalizeColumn($query, $aggregate['columns'][0]); |
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return "COLLECT AGGREGATE aggregateResult = MIN($column)"; |
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} |
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/** |
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* Compile AQL for sum aggregate. |
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* @param Builder $query |
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* @param array<mixed> $aggregate |
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* @return string |
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* @throws \Exception |
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*/ |
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protected function compileSum(Builder $query, array $aggregate) |
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{ |
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$column = $this->normalizeColumn($query, $aggregate['columns'][0]); |
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return "COLLECT AGGREGATE aggregateResult = SUM($column)"; |
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} |
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} |
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