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<?php |
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/** |
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* This file is part of the miBadger package. |
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* |
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* @author Michael Webbers <[email protected]> |
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* @license http://opensource.org/licenses/Apache-2.0 Apache v2 License |
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*/ |
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namespace miBadger\ActiveRecord; |
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use miBadger\Query\Query; |
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use miBadger\Query\QueryInterface; |
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use miBadger\Query\QueryExpression; |
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/** |
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* The active record exception class. |
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* |
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* @since 2.0.0 |
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*/ |
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class ActiveRecordQuery implements \IteratorAggregate |
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{ |
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private $clauses = []; |
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private $query; |
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private $results; |
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private $table; |
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private $type; |
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private $whereExpression = null; |
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public function __construct(AbstractActiveRecord $instance, $table, Array $additionalWhereClauses) |
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{ |
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$this->table = $table; |
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$this->query = new Query($instance->getPdo(), $table); |
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$this->type = $instance; |
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$this->clauses = $additionalWhereClauses; |
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} |
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private function execute() |
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{ |
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$clauses = $this->clauses; |
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// Optionally add user concatenated where expression |
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if ($this->whereExpression !== null) |
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{ |
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$clauses[] = $this->whereExpression; |
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} |
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// Construct where clause |
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if (count($clauses) == 1) |
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{ |
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$this->query->where($clauses[0]); |
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} else if (count($clauses) >= 2) |
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{ |
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$rest = array_slice($clauses, 1); |
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$this->query->where(Query::And($clauses[0], ...$rest)); |
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} |
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$this->query->select(); |
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$this->results = $this->query->execute(); |
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return $this; |
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} |
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public function getIterator() |
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{ |
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return new \ArrayIterator($this->fetchAll()); |
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} |
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public function fetchAll() |
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{ |
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try { |
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// TODO: Should execute call be explicit? |
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$this->execute(); |
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$typedResults = []; |
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$entries = $this->results->fetchAll(); |
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if ($entries === false) { |
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throw new ActiveRecordException(sprintf('Can not search one non-existent entry from the `%s` table.', $this->table)); |
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} |
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foreach ($entries as $entry) { |
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$typedEntry = clone $this->type; |
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$typedEntry->fill($entry); |
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$typedResults[] = $typedEntry; |
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} |
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return $typedResults; |
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} catch (\PDOException $e) { |
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throw new ActiveRecordException($e->getMessage(), 0, $e); |
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} |
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} |
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public function fetch() |
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{ |
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try { |
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$this->execute(); |
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$typedResult = clone $this->type; |
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$entry = $this->results->fetch(); |
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if ($entry === false) { |
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throw new ActiveRecordException(sprintf('Can not search one non-existent entry from the `%s` table.', $this->table)); |
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} |
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$typedResult->fill($entry); |
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return $typedResult; |
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} catch (\PDOException $e) { |
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throw new ActiveRecordException($e->getMessage(), 0, $e); |
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} |
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} |
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/** |
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* Set the where condition |
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* |
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* @param QueryExpression $expression the query expression |
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* @return $this |
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* @see https://en.wikipedia.org/wiki/SQL#Operators |
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* @see https://en.wikipedia.org/wiki/Where_(SQL) |
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*/ |
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public function where(QueryExpression $expression) |
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{ |
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$this->whereExpression = $expression; |
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return $this; |
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} |
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/** |
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* Set an additional group by. |
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* |
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* @param string $column |
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* @return $this |
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* @see https://en.wikipedia.org/wiki/SQL#Queries |
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*/ |
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public function groupBy($column) |
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{ |
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$this->query->groupBy($column); |
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return $this; |
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} |
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/** |
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* Set an additional order condition. |
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* |
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* @param string $column |
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* @param string|null $order |
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* @return $this |
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* @see https://en.wikipedia.org/wiki/SQL#Queries |
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* @see https://en.wikipedia.org/wiki/Order_by |
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*/ |
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public function orderBy($column, $order = null) |
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{ |
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$this->query->orderBy($column, $order); |
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return $this; |
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} |
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/** |
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* Set the limit. |
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* |
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* @param mixed $limit |
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* @return $this |
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*/ |
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public function limit($limit) |
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{ |
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$this->query->limit($limit); |
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return $this; |
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} |
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/** |
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* Set the offset. |
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* |
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* @param mixed $offset |
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* @return $this |
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*/ |
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public function offset($offset) |
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{ |
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$this->query->offset($offset); |
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return $this; |
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} |
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} |
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miBadger /
miBadger.ActiveRecord
