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<?php |
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declare(strict_types=1); |
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namespace LaravelFreelancerNL\FluentAQL\Expressions; |
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use LaravelFreelancerNL\FluentAQL\Exceptions\ExpressionTypeException; |
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use LaravelFreelancerNL\FluentAQL\QueryBuilder; |
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class ArithmeticExpression extends PredicateExpression implements ExpressionInterface |
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{ |
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/** |
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* @var array<mixed> |
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*/ |
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protected array $calculation = []; |
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/** |
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* Create predicate expression. |
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* |
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* @param mixed $leftOperand |
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* @param string $operator |
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* @param mixed $rightOperand |
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*/ |
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public function __construct(mixed $leftOperand, string $operator, mixed $rightOperand) |
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{ |
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$this->calculation = [$leftOperand, $operator, $rightOperand]; |
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} |
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/** |
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* Compile calculation. |
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* |
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* @param QueryBuilder|null $queryBuilder |
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* @return string |
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* @throws \Exception |
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*/ |
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public function compile(QueryBuilder $queryBuilder = null): string |
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{ |
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/** @phpstan-ignore-next-line */ |
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$normalizedCalculation = $this->normalizeCalculation($queryBuilder, $this->calculation); |
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$leftOperand = $normalizedCalculation['leftOperand']->compile($queryBuilder); |
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if ($normalizedCalculation['leftOperand'] instanceof ArithmeticExpression) { |
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$leftOperand = '(' . $leftOperand . ')'; |
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} |
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$rightOperand = $normalizedCalculation['rightOperand']->compile($queryBuilder); |
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if ($normalizedCalculation['rightOperand'] instanceof ArithmeticExpression) { |
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$rightOperand = '(' . $rightOperand . ')'; |
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} |
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return $leftOperand . ' ' . $normalizedCalculation['arithmeticOperator'] . ' ' . $rightOperand; |
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} |
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/** |
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* @param QueryBuilder $queryBuilder |
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* @param array<mixed> $calculation |
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* @return array<mixed> |
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* @throws ExpressionTypeException |
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*/ |
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public function normalizeCalculation( |
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QueryBuilder $queryBuilder, |
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array $calculation |
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): array { |
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$normalizedCalculation = []; |
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$leftOperand = $queryBuilder->normalizeArgument($calculation[0]); |
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$arithmeticOperator = '+'; |
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if ($queryBuilder->grammar->isArithmeticOperator($calculation[1])) { |
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$arithmeticOperator = $calculation[1]; |
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} |
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$rightOperand = $queryBuilder->normalizeArgument($calculation[2]); |
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$normalizedCalculation['leftOperand'] = $leftOperand; |
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$normalizedCalculation['arithmeticOperator'] = $arithmeticOperator; |
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$normalizedCalculation['rightOperand'] = $rightOperand; |
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return $normalizedCalculation; |
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} |
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} |
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LaravelFreelancerNL /
fluentaql
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