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<?php |
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namespace Muffin\Queries; |
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use Muffin\Query; |
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use Muffin\Condition; |
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use Muffin\Traits\EscaperAware; |
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use Muffin\Snippet; |
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use Muffin\Queries\Snippets\Builders; |
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use Muffin\Queries\Snippets\Having; |
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use Muffin\QueryPartAware; |
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class Select implements Query, QueryPartAware |
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{ |
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use |
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EscaperAware, |
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Builders\Join, |
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Builders\Where, |
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Builders\GroupBy, |
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Builders\OrderBy, |
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Builders\Limit, |
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Builders\QueryPart; |
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private |
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$select, |
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$from, |
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$having; |
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public function __construct($columns = array()) |
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{ |
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$this->select = new Snippets\Select(); |
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$this->where = new Snippets\Where(); |
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$this->groupBy = new Snippets\GroupBy(); |
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$this->having = new Snippets\Having(); |
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$this->orderBy = new Snippets\OrderBy(); |
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$this->select->select($columns); |
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} |
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public function toString() |
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{ |
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$snippets = $this->joins; |
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$snippets[] = $this->from; |
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$this->ensureNeededTablesArePresent($snippets); |
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$queryParts = array( |
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$this->buildSelect(), |
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$this->buildFrom(), |
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$this->buildJoin(), |
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$this->buildWhere($this->escaper), |
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$this->buildGroupBy(), |
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$this->buildHaving(), |
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$this->buildOrderBy(), |
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$this->buildLimit(), |
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); |
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return implode(' ', array_filter($queryParts)); |
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} |
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public function from($table, $alias = null) |
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{ |
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$this->from = new Snippets\From($table, $alias); |
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return $this; |
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} |
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public function select($columns) |
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{ |
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$this->select->select($columns); |
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return $this; |
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} |
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public function having(Condition $condition) |
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{ |
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$this->having->having($condition); |
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return $this; |
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} |
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private function buildSelect() |
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{ |
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return $this->select->toString(); |
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} |
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private function buildFrom() |
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{ |
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if(!$this->from instanceof Snippet) |
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{ |
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throw new \LogicException('No column for FROM clause'); |
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} |
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return $this->from->toString(); |
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} |
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private function buildHaving() |
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{ |
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$this->having->setEscaper($this->escaper); |
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return $this->having->toString(); |
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} |
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} |
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lebris /
muffin
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