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<?php |
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namespace Xsolve\SalesforceClient\QueryBuilder; |
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use Xsolve\SalesforceClient\QueryBuilder\Expr\Compare\AbstractCompare; |
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use Xsolve\SalesforceClient\QueryBuilder\Expr\ExprInterface; |
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use Xsolve\SalesforceClient\QueryBuilder\Expr\From\AbstractFrom; |
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use Xsolve\SalesforceClient\QueryBuilder\Expr\GroupBy\AbstractGroupBy; |
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use Xsolve\SalesforceClient\QueryBuilder\Expr\OrderBy\AbstractOrderBy; |
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use Xsolve\SalesforceClient\QueryBuilder\Expr\Select\AbstractSelect; |
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use Xsolve\SalesforceClient\QueryBuilder\Visitor\Parameters\ParametersReplacingVisitor; |
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use Xsolve\SalesforceClient\QueryBuilder\Visitor\VisiteeInterface; |
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use Xsolve\SalesforceClient\QueryBuilder\Visitor\VisitorInterface; |
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class Query |
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{ |
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/** |
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* @var AbstractSelect[] |
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*/ |
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private $selects = []; |
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/** |
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* @var AbstractFrom|null |
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*/ |
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private $from; |
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/** |
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* @var AbstractCompare|null |
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*/ |
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private $where; |
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/** |
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* @var AbstractGroupBy|null |
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*/ |
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private $groupBy; |
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/** |
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* @var AbstractCompare|null |
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*/ |
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private $having; |
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/** |
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* @var AbstractOrderBy|null |
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*/ |
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private $orderBy; |
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/** |
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* @var int|null |
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*/ |
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private $limit; |
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/** |
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* @var int|null |
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*/ |
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private $offset; |
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/** |
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* @var VisitorInterface[] |
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*/ |
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private $visitors; |
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/** |
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* @param VisitorInterface[] $visitors |
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*/ |
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public function __construct(array $visitors = []) |
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{ |
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$this->visitors = $visitors; |
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} |
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public function addSelect(AbstractSelect $select) |
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{ |
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$this->selects[] = $select; |
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} |
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public function setFrom(AbstractFrom $from) |
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{ |
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$this->from = $from; |
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} |
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public function setWhere(AbstractCompare $where) |
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{ |
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$this->where = $where; |
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} |
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public function setGroupBy(AbstractGroupBy $groupBy) |
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{ |
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$this->groupBy = $groupBy; |
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} |
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public function setHaving(AbstractCompare $having) |
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{ |
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$this->having = $having; |
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} |
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/** |
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* @return AbstractCompare|null |
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*/ |
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public function getWhere() |
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{ |
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return $this->where; |
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} |
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/** |
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* @return AbstractCompare|null |
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*/ |
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public function getHaving() |
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{ |
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return $this->having; |
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} |
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public function setOrderBy(AbstractOrderBy $orderBy) |
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{ |
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$this->orderBy = $orderBy; |
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} |
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public function setLimit(int $limit) |
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{ |
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$this->limit = $limit; |
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} |
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public function setOffset(int $offset) |
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{ |
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$this->offset = $offset; |
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} |
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public function setParameters(array $parameters) |
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{ |
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$this->visitors[] = new ParametersReplacingVisitor($parameters); |
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} |
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public function parse(): string |
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{ |
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$this->validate(); |
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$this->visitQueryParts(); |
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return $this->parseSelect() |
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.$this->parseWhere() |
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.$this->parseGroupBy() |
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.$this->parseHaving() |
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.$this->parseOrderBy() |
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.$this->parseLimit() |
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.$this->parseOffset(); |
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} |
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private function validate() |
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{ |
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if (empty($this->selects) || null === $this->from) { |
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throw new \LogicException('At least SELECT and FROM must be defined'); |
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} |
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} |
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private function visitQueryParts() |
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{ |
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foreach ($this->visitors as $visitor) { |
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foreach ($this->getQueryParts() as $queryPart) { |
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if ($queryPart instanceof VisiteeInterface) { |
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$queryPart->accept($visitor); |
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} |
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} |
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} |
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} |
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/** |
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* @return ExprInterface[] |
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*/ |
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private function getQueryParts(): array |
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{ |
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return array_merge( |
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$this->selects, |
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[$this->from], |
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[$this->where], |
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[$this->groupBy], |
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[$this->having], |
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[$this->orderBy] |
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); |
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} |
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private function parseSelect(): string |
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{ |
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$selects = implode(', ', array_map( |
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function (AbstractSelect $select): string { |
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return $select->asSOQL(); |
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}, |
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$this->selects |
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)); |
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return sprintf('SELECT %s FROM %s', $selects, $this->from->asSOQL()); |
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} |
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private function parseWhere(): string |
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{ |
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if (!$this->where) { |
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return ''; |
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} |
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return sprintf(' WHERE %s', $this->where->asSOQL()); |
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} |
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private function parseGroupBy(): string |
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{ |
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if (!$this->groupBy) { |
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return ''; |
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} |
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return sprintf(' GROUP BY %s', $this->groupBy->asSOQL()); |
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} |
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private function parseHaving(): string |
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{ |
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if (!$this->having) { |
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return ''; |
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} |
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return sprintf(' HAVING %s', $this->having->asSOQL()); |
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} |
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private function parseOrderBy(): string |
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{ |
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if (!$this->orderBy) { |
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return ''; |
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} |
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return sprintf(' ORDER BY %s', $this->orderBy->asSOQL()); |
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} |
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private function parseLimit(): string |
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{ |
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if (!is_int($this->limit)) { |
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return ''; |
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} |
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return sprintf(' LIMIT %d', $this->limit); |
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} |
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private function parseOffset(): string |
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{ |
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if (!is_int($this->offset)) { |
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return ''; |
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} |
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return sprintf(' OFFSET %d', $this->offset); |
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} |
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} |
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