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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace SilverStripe\AssetAdmin\GraphQL;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\Assets\File;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\Assets\Folder;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\ORM\ArrayList;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use GraphQL\Type\Definition\Type;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use GraphQL\Type\Definition\UnionType;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\GraphQL\Pagination\PaginatedQueryCreator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\GraphQL\Pagination\Connection;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\ORM\DataList;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\ORM\Versioning\Versioned;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class ReadFileQueryCreator extends PaginatedQueryCreator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function attributes()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'name' => 'readFiles'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    public function connection()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return Connection::create('readFiles') | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ->setConnectionType(function () { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $unionType = new UnionType([  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    'name' => 'Result',  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    'types' => [  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        $this->manager->getType('File'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        $this->manager->getType('Folder') | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    ],  | 
            
            
                                                                        
                            
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                                    'resolveType' => function ($object) { | 
            
                            
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                                        if ($object instanceof Folder) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                            return $this->manager->getType('Folder'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        if ($object instanceof File) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                            return $this->manager->getType('File'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        return null;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                ]);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                return $unionType;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            })  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ->setArgs([  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                'id' => [  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    'type' => Type::id(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                ],  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                'parentId' => [  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    'type' => Type::id(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                ],  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ])  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ->setSortableFields(['ID', 'Title', 'Created', 'LastEdited'])  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ->setConnectionResolver(array($this, 'resolveConnection'));  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function resolveConnection($object, array $args, $context, $info)  | 
            
                            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $list = Versioned::get_by_stage(File::class, Versioned::DRAFT);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (isset($args['parentId'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $list = $list->filter('ParentID', $args['parentId']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (isset($args['id']) && (int)$args['id'] > 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $list = $list->filter('ID', $args['id']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } elseif (isset($args['id']) && (int)$args['id'] === 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // Special case for root folder  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $list = new ArrayList([new Folder([  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'ID' => 0,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ])]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($list instanceof DataList) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $list = $list->filterByCallback(function ($file) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return $file->canView();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // TODO Sorting  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $list;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.