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<?php |
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namespace Reduce\Db; |
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use Iterator; |
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use ArrayAccess; |
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use Countable; |
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use JsonSerializable; |
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use Reduce\Db\Row; |
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use Reduce\Db\Query\QueryBuilder; |
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class ResultSet implements Iterator, ArrayAccess, Countable, JsonSerializable |
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{ |
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protected $queryBuilder; |
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protected $data; |
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protected $single = false; |
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protected $executed = false; |
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protected $tableName; |
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public function __construct($tableName, QueryBuilder $queryBuilder, $singleResultSet = false) |
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{ |
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$this->tableName = $tableName; |
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$this->queryBuilder = $queryBuilder; |
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$this->single = $singleResultSet; |
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$this->queryBuilder->select('*')->from($tableName); |
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} |
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public function __call($name, $args) |
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{ |
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if (method_exists($this->getQueryBuilder(), $name)) { |
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call_user_func_array([$this->getQueryBuilder(), $name], $args); |
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return $this; |
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} |
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$condition = sprintf('%s.id = %s.%s_id', $this->getTableName(), $name, $this->getTableName()); |
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$this->queryBuilder->leftJoin($this->getTableName(), $name, $name, $condition); |
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return $this; |
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} |
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public function getTableName() |
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{ |
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return $this->tableName; |
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} |
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public function getQueryBuilder() |
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{ |
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return $this->queryBuilder; |
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} |
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protected function execute() |
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{ |
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if (!$this->executed) { |
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$this->data = $this->getQueryBuilder()->execute()->fetchAll(); |
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$this->executed = true; |
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} |
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} |
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protected function createRow($data = []) |
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{ |
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return new Row($this, $data); |
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} |
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public function offsetGet($key) |
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{ |
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if ($this->single) { |
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$this->getQueryBuilder()->where('id = ?', $key); |
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return $this->createRow(); |
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} |
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$this->execute(); |
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if (isset($this->data[$key])) { |
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return $this->data[$key]; |
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} |
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return []; |
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} |
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public function offsetSet($key, $value) |
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{} |
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public function offsetUnset($key) |
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{} |
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public function offsetExists($key) |
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{ |
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return !! $this->offsetGet($key); |
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} |
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public function count() |
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{ |
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$this->execute(); |
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return count($this->data); |
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} |
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public function rewind() |
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{ |
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$this->execute(); |
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reset($this->data); |
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} |
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public function current() |
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{ |
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return $this->createRow(current($this->data)); |
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} |
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public function key() |
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{ |
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$this->execute(); |
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return key($this->data); |
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} |
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public function next() |
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{ |
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next($this->data); |
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} |
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public function valid() |
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{ |
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$key = key($this->data); |
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return ($key !== null); |
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} |
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public function toArray() |
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{ |
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$this->execute(); |
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return $this->data; |
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} |
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public function jsonSerialize() |
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{ |
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$this->execute(); |
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return $this->toArray(); |
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} |
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public function __toString() |
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{ |
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return $this->getQueryBuilder()->__toString(); |
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} |
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} |
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abdala /
reduce-database
