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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Db\Pgsql\Expression; |
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use Yiisoft\Db\Exception\InvalidArgumentException; |
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use Yiisoft\Db\Expression\ArrayExpression; |
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use Yiisoft\Db\Expression\ExpressionBuilderInterface; |
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use Yiisoft\Db\Expression\ExpressionBuilderTrait; |
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use Yiisoft\Db\Expression\ExpressionInterface; |
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use Yiisoft\Db\Expression\JsonExpression; |
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use Yiisoft\Db\Query\Query; |
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use Yiisoft\Json\Json; |
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/** |
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* Class JsonExpressionBuilder builds {@see JsonExpression} for PostgreSQL DBMS. |
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*/ |
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class JsonExpressionBuilder implements ExpressionBuilderInterface |
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{ |
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use ExpressionBuilderTrait; |
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/** |
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* {@inheritdoc} |
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* |
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* @param JsonExpression|ExpressionInterface $expression the expression to be built |
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* @param array $params |
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* |
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* @return string |
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*/ |
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public function build(ExpressionInterface $expression, array &$params = []): string |
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{ |
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$value = $expression->getValue(); |
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if ($value instanceof Query) { |
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[$sql, $params] = $this->queryBuilder->build($value, $params); |
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return "($sql)" . $this->getTypecast($expression); |
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} |
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if ($value instanceof ArrayExpression) { |
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$placeholder = 'array_to_json(' . $this->queryBuilder->buildExpression($value, $params) . ')'; |
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} else { |
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$placeholder = $this->queryBuilder->bindParam(Json::encode($value), $params); |
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} |
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return $placeholder . $this->getTypecast($expression); |
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} |
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/** |
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* @param JsonExpression $expression |
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* |
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* @return string the typecast expression based on [[type]]. |
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*/ |
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protected function getTypecast(JsonExpression $expression): string |
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{ |
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if ($expression->getType() === null) { |
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return ''; |
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} |
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return '::' . $expression->getType(); |
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} |
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} |
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yiisoft /
db-pgsql
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