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<?php |
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namespace Maphper; |
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class Maphper implements \Countable, \ArrayAccess, \IteratorAggregate { |
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const FIND_EXACT = 0x1; |
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const FIND_LIKE = 0x2; |
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const FIND_STARTS = 0x4; |
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const FIND_ENDS = 0x8; |
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const FIND_BIT = 0x10; |
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const FIND_GREATER = 0x20; |
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const FIND_LESS = 0x40; |
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const FIND_EXPRESSION = 0x80; |
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const FIND_AND = 0x100; |
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const FIND_OR = 0x200; |
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const FIND_NOT = 0x400; |
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const FIND_BETWEEN = 0x800; |
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const FIND_NOCASE = 0x1000; |
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private $dataSource; |
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private $relations = []; |
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private $settings = ['filter' => [], 'sort' => null, 'limit' => null, 'offset' => null, 'resultClass' => '\\stdClass']; |
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private $iterator = 0; |
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private $entity; |
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public function __construct(DataSource $dataSource, array $settings = [], array $relations = []) { |
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$this->dataSource = $dataSource; |
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$this->settings = array_replace($this->settings, $settings); |
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$this->relations = $relations; |
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$this->entity = new Lib\Entity($this, $this->settings['resultClass'] ?? null); |
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} |
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public function addRelation($name, Relation $relation) { |
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$this->relations[$name] = $relation; |
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} |
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public function count($group = null) { |
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return $this->dataSource->findAggregate('count', $group == null ? $this->dataSource->getPrimaryKey() : $group, $group, $this->settings['filter']); |
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} |
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//Allow filter(['user' => $user]) where $user is an object instead of |
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//filter(['userId' => $user->id]) |
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private function wrapFilter() { |
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foreach ($this->settings['filter'] as $name => $value) { |
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if (isset($this->relations[$name])) { |
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$filter = $this->relations[$name]->getFilter($value); |
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$this->settings['filter'] = array_merge($this->settings['filter'], $filter); |
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unset($this->settings['filter'][$name]); |
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} |
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} |
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} |
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private function getResults() { |
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$this->wrapFilter(); |
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foreach ($this->settings['filter'] as $name => &$filter) { |
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if (isset($this->relations[$name])) { |
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$this->relations[$name]->overwrite($filter, $filter[$name]); |
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} |
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} |
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$results = $this->dataSource->findByField($this->settings['filter'], |
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['order' => $this->settings['sort'], 'limit' => $this->settings['limit'], 'offset' => $this->settings['offset'] ]); |
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$siblings = new \ArrayObject(); |
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foreach ($results as &$result) $result = $this->entity->create($result, $this->relations, $siblings); |
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return $results; |
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} |
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public function item($n) { |
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$array = $this->getResults(); |
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return isset($array[$n]) ? $array[$n] : null; |
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} |
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public function getIterator() { |
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return new Iterator($this->getResults(), $this->dataSource->getPrimaryKey()); |
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} |
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private function processFilters($value) { |
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//When saving to a mapper with filters, write the filters back into the object being stored |
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foreach ($this->settings['filter'] as $key => $filterValue) { |
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if (empty($value->$key) && !is_array($filterValue)) $value->$key = $filterValue; |
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} |
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return $value; |
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} |
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public function offsetSet($offset, $valueObj) { |
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if ($valueObj instanceof \Maphper\Relation) throw new \Exception(); |
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//Extract private properties from the object |
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$propertyReader = new \Maphper\Lib\VisibilityOverride(); |
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$value = $propertyReader->getProperties($valueObj); |
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$value = $this->processFilters($value); |
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$pk = $this->dataSource->getPrimaryKey(); |
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if ($offset !== null) $value->{$pk[0]} = $offset; |
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$valueCopy = clone $value; |
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$value = $this->entity->wrap($this->relations, $value); |
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$this->dataSource->save($value); |
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$value = $this->entity->create(array_merge((array)$value, (array)$valueCopy), $this->relations); |
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$writer = new Lib\PropertyWriter($valueObj); |
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$writer->write($value); |
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} |
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public function offsetExists($offset) { |
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View Code Duplication |
if (count($this->dataSource->getPrimaryKey()) > 1) return new MultiPk($this, $offset, $this->dataSource->getPrimaryKey()); |
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if (!empty($this->settings['filter'])) { |
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$data = $this->dataSource->findByField(array_merge($this->settings['filter'], [$this->dataSource->getPrimaryKey()[0] => $offset])); |
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return isset($data[0]); |
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} |
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return (bool) $this->dataSource->findById($offset); |
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} |
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public function offsetUnset($id) { |
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$this->dataSource->deleteById($id); |
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} |
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public function offsetGet($offset) { |
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View Code Duplication |
if (count($this->dataSource->getPrimaryKey()) > 1) return new MultiPk($this, $offset, $this->dataSource->getPrimaryKey()); |
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if (!empty($this->settings['filter'])) { |
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$data = $this->dataSource->findByField(array_merge($this->settings['filter'], [$this->dataSource->getPrimaryKey()[0] => $offset])); |
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return $this->entity->create(isset($data[0]) ? $data[0] : null, $this->relations); |
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} |
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return $this->entity->create($this->dataSource->findById($offset), $this->relations); |
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} |
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public function __call($method, $args) { |
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if (array_key_exists($method, $this->settings)) { |
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$maphper = new Maphper($this->dataSource, $this->settings, $this->relations); |
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if (is_array($maphper->settings[$method])) $maphper->settings[$method] = $args[0] + $maphper->settings[$method]; |
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else $maphper->settings[$method] = $args[0]; |
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return $maphper; |
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} |
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else throw new \Exception('Method Maphper::' . $method . ' does not exist'); |
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} |
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public function findAggregate($function, $field, $group = null) { |
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return $this->dataSource->findAggregate($function, $field, $group, $this->settings['filter']); |
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} |
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public function delete() { |
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$this->dataSource->deleteByField($this->settings['filter'], ['order' => $this->settings['sort'], 'limit' => $this->settings['limit'], 'offset' => $this->settings['offset']]); |
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} |
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} |
In the issue above, the returned value is violating the contract defined by the mentioned interface.
Let's take a look at an example: