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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Db\Pgsql\Composite; |
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use Traversable; |
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use Yiisoft\Db\Expression\ExpressionInterface; |
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use Yiisoft\Db\Schema\ColumnSchemaInterface; |
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/** |
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* Represents a composite type SQL expression. |
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* |
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* For example: |
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* |
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* ```php |
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* new CompositeExpression(['price' => 10, 'currency_code' => 'USD']); |
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* ``` |
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* |
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* Will be encoded to `ROW(10, USD)` |
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*/ |
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class CompositeExpression implements ExpressionInterface |
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{ |
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/** |
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* @param ColumnSchemaInterface[] $columns |
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* @psalm-param array<string, ColumnSchemaInterface> $columns |
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*/ |
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public function __construct( |
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private mixed $value, |
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private string|null $type = null, |
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private array $columns = [], |
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) { |
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} |
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/** |
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* The composite type name. |
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* |
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* Defaults to `null` which means the type is not explicitly specified. |
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* |
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* Note that in the case where a type is not specified explicitly and DBMS cannot guess it from the context, |
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* SQL error will be raised. |
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*/ |
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public function getType(): string|null |
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{ |
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return $this->type; |
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} |
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/** |
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* The composite type columns that are used for value normalization and type casting. |
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* |
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* @return ColumnSchemaInterface[] |
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*/ |
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public function getColumns(): array |
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{ |
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return $this->columns; |
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} |
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/** |
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* The content of the composite type. It can be represented as an associative array of composite type column names |
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* and values. |
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*/ |
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public function getValue(): mixed |
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{ |
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return $this->value; |
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} |
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/** |
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* Sorted values according to the order of composite type columns, |
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* indexed keys are replaced with column names, |
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* missing elements are filled in with default values, |
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* excessive elements are removed. |
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*/ |
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public function getNormalizedValue(): mixed |
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{ |
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if (empty($this->columns) || !is_iterable($this->value)) { |
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return $this->value; |
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} |
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$normalized = []; |
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$value = $this->value; |
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$columnsNames = array_keys($this->columns); |
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if ($value instanceof Traversable) { |
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$value = iterator_to_array($value); |
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} |
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foreach ($columnsNames as $i => $columnsName) { |
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$normalized[$columnsName] = match (true) { |
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array_key_exists($columnsName, $value) => $value[$columnsName], |
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array_key_exists($i, $value) => $value[$i], |
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default => $this->columns[$columnsName]->getDefaultValue(), |
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}; |
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} |
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return $normalized; |
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} |
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} |
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yiisoft /
db-pgsql
