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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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                	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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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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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                		$results = array_map([$this, 'createNew'], $results);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		array_walk($results, [$this, 'wrap'], $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 = $this->wrap($value);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->dataSource->save($value);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$value = $this->wrap((object) array_merge((array)$value, (array)$valueCopy));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->createNew($value, $valueObj);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function offsetExists($offset) { | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                		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 $this->wrap($this->createNew(isset($data[0]) ? $data[0] : null));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return $this->wrap($this->createNew($this->dataSource->findById($offset)));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    123
                 | 
                                    
                                                     | 
                
                 | 
                	private function createNew($data = [], $obj = null) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    124
                 | 
                                    
                                                     | 
                
                 | 
                		if (!$obj) $obj = (is_callable($this->settings['resultClass'])) ? call_user_func($this->settings['resultClass']) : new $this->settings['resultClass'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    125
                 | 
                                    
                                                     | 
                
                 | 
                		$writer = new Lib\PropertyWriter($obj);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    126
                 | 
                                    
                                                     | 
                
                 | 
                		$writer->write($data);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    127
                 | 
                                    
                                                     | 
                
                 | 
                		return $obj;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    128
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    129
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    130
                 | 
                                    
                                                     | 
                
                 | 
                	private function wrap($object, $key = null, $siblings = null) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    131
                 | 
                                    
                                                     | 
                
                 | 
                		//see if any relations need overwriting  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                		foreach ($this->relations as $name => $relation) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                			if (isset($object->$name) && !($object->$name instanceof \Maphper\Relation) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                				//After overwriting the relation, does the parent object ($object) need overwriting as well?  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                				if ($relation->overwrite($object, $object->$name)) $this[] = $object;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                			$object->$name = $relation->getData($object, $siblings);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                			//var_dump($siblings);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                		return $object;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                	public function __call($method, $args) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                		if (array_key_exists($method, $this->settings)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                			$maphper = new Maphper($this->dataSource, $this->settings, $this->relations);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                			if (is_array($maphper->settings[$method])) $maphper->settings[$method] = $args[0] + $maphper->settings[$method];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                			else $maphper->settings[$method] = $args[0];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                			return $maphper;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                		else throw new \Exception('Method Maphper::' . $method . ' does not exist'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                	public function findAggregate($function, $field, $group = null) { | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    155
                 | 
                                    
                                                     | 
                
                 | 
                		return $this->dataSource->findAggregate($function, $field, $group, $this->settings['filter']);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    156
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    157
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    158
                 | 
                                    
                                                     | 
                
                 | 
                	public function delete() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    159
                 | 
                                    
                                                     | 
                
                 | 
                		$this->dataSource->deleteByField($this->settings['filter'], ['order' => $this->settings['sort'], 'limit' => $this->settings['limit'], 'offset' => $this->settings['offset']]);  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    160
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    161
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    162
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
In the issue above, the returned value is violating the contract defined by the mentioned interface.
Let's take a look at an example: