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<?php |
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declare(strict_types=1); |
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namespace QB\Generic\Statement; |
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use QB\Generic\Clause\Table; |
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use QB\Generic\Expr\Expr; |
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use QB\Generic\IQueryPart; |
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use RuntimeException; |
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class Update implements IUpdate |
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{ |
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/** @var array<int,Table|string> */ |
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protected array $tables = []; |
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/** @var string[] */ |
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protected array $modifiers = []; |
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/** @var array<string,mixed> */ |
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protected array $rawValues = []; |
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/** @var IQueryPart[] */ |
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protected array $whereParts = []; |
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/** |
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* @param Table|string ...$tables |
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*/ |
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public function __construct(Table|string ...$tables) |
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{ |
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$this->tables = array_merge($this->tables, $tables); |
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} |
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/** |
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* @param string ...$modifiers |
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* |
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* @return $this |
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*/ |
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public function modifier(string ...$modifiers): static |
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{ |
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$this->modifiers = array_merge($this->modifiers, $modifiers); |
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return $this; |
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} |
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/** |
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* @param array<string,mixed> $values |
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* |
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* @return $this |
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*/ |
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public function values(array $values): static |
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{ |
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$this->rawValues = $values; |
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return $this; |
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} |
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/** |
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* @param IQueryPart|string ...$whereParts |
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* |
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* @return $this |
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*/ |
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public function where(IQueryPart|string ...$whereParts): static |
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{ |
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foreach ($whereParts as $wherePart) { |
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$this->whereParts[] = is_string($wherePart) ? new Expr($wherePart) : $wherePart; |
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} |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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if (!$this->isValid()) { |
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throw new RuntimeException('Under-initialized UPDATE query. Table, values and where are necessary'); |
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} |
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$sqlParts = array_merge( |
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[$this->getCommand()], |
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$this->getSet(), |
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$this->getWhere(), |
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); |
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$sqlParts = array_filter($sqlParts); |
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return implode(PHP_EOL, $sqlParts); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isValid(): bool |
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{ |
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return count($this->tables) === 1 && count($this->rawValues) > 0 && count($this->whereParts) > 0; |
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} |
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/** |
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* @return string |
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*/ |
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protected function getCommand(): string |
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{ |
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$sql = []; |
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$sql[] = 'UPDATE'; |
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$sql[] = implode(' ', $this->modifiers); |
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$sql[] = $this->tables[0]; |
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$sql = array_filter($sql); |
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return implode(' ', $sql); |
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} |
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/** |
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* @return string[] |
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*/ |
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protected function getSet(): array |
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{ |
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$values = []; |
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foreach ($this->rawValues as $column => $value) { |
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if ($value === null) { |
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$values[] = sprintf('%s = NULL', $column); |
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} elseif (is_scalar($value)) { |
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$values[] = sprintf('%s = %s', $column, $value); |
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} elseif ($value instanceof Expr) { |
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$values[] = sprintf("%s = ?", $column); |
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} else { |
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$values[] = sprintf("%s = '%s'", $column, json_encode($value)); |
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} |
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} |
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return ['SET ' . implode(', ', $values)]; |
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} |
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/** |
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* @return string[] |
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*/ |
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protected function getWhere(): array |
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{ |
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$whereParts = []; |
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foreach ($this->whereParts as $wherePart) { |
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$whereParts[] = (string)$wherePart; |
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} |
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return ['WHERE ' . implode(' AND ', $whereParts)]; |
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} |
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/** |
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* @return array |
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*/ |
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public function getParams(): array |
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{ |
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$params = []; |
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foreach ($this->rawValues as $values) { |
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if ($values instanceof IQueryPart) { |
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$params = array_merge($params, $values->getParams()); |
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} |
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} |
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foreach ($this->whereParts as $wherePart) { |
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$params = array_merge($params, $wherePart->getParams()); |
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} |
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return $params; |
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} |
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} |
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abterphp /
qb
