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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | |
| 4 | namespace SeedDMS\Core; |
| 5 | |
| 6 | /** |
| 7 | * Implementation of the document iterartor |
| 8 | * |
| 9 | * @category DMS |
| 10 | * @package SeedDMS_Core |
| 11 | * @license GPL 2 |
| 12 | * @version @version@ |
| 13 | * @author Uwe Steinmann <uwe@steinmann.cx> |
| 14 | * @copyright Copyright (C) 2010-2024 Uwe Steinmann |
| 15 | * @version Release: @package_version@ |
| 16 | */ |
| 17 | |
| 18 | class DocumentIterator implements \Iterator { |
| 19 | /** |
| 20 | * @var object folder |
| 21 | */ |
| 22 | protected $_folder; |
| 23 | |
| 24 | /** |
| 25 | * @var object dms |
| 26 | */ |
| 27 | protected $_dms; |
| 28 | |
| 29 | /** |
| 30 | * @var array documents |
| 31 | */ |
| 32 | protected $_documents; |
| 33 | |
| 34 | /** |
| 35 | * @var int $_pointer |
| 36 | */ |
| 37 | protected $_pointer; |
| 38 | |
| 39 | /** |
| 40 | * @var array $_cache |
| 41 | */ |
| 42 | protected $_cache; |
| 43 | |
| 44 | public function __construct($folder) { |
| 45 | $this->_folder = $folder; |
| 46 | $this->_dms = $folder->getDMS(); |
| 47 | $this->_documents = array(); |
| 48 | $this->_pointer = 0; |
| 49 | $this->_cache = array(); |
| 50 | $this->populate(); |
| 51 | } |
| 52 | |
| 53 | public function rewind(): void { |
| 54 | $this->_pointer = 0; |
| 55 | } |
| 56 | |
| 57 | public function valid(): bool { |
| 58 | return isset($this->_documents[$this->_pointer]); |
| 59 | } |
| 60 | |
| 61 | public function next(): void { |
| 62 | $this->_pointer++; |
| 63 | } |
| 64 | |
| 65 | public function key(): mixed { |
| 66 | return $this->_folders[$this->_pointer]; |
| 67 | } |
| 68 | |
| 69 | public function current(): mixed { |
| 70 | if($this->_documents[$this->_pointer]) { |
| 71 | $documentid = $this->_documents[$this->_pointer]['id']; |
| 72 | if(!isset($this->_cache[$documentid])) { |
| 73 | // echo $documentid." not cached<br />"; |
| 74 | $this->_cache[$documentid] = $this->_dms->getdocument($documentid); |
| 75 | } |
| 76 | return $this->_cache[$documentid]; |
| 77 | } |
| 78 | return null; |
| 79 | } |
| 80 | |
| 81 | private function populate($orderby="", $dir="asc", $limit=0, $offset=0) { /* {{{ */ |
| 82 | $db = $this->_dms->getDB(); |
| 83 | |
| 84 | $queryStr = "SELECT `id` FROM `tblDocuments` WHERE `folder` = " . $this->_folder->getID(); |
| 85 | |
| 86 | if ($orderby && $orderby[0]=="n") $queryStr .= " ORDER BY `name`"; |
| 87 | elseif ($orderby && $orderby[0]=="s") $queryStr .= " ORDER BY `sequence`"; |
| 88 | elseif ($orderby && $orderby[0]=="d") $queryStr .= " ORDER BY `date`"; |
| 89 | if($dir == 'desc') |
| 90 | $queryStr .= " DESC"; |
| 91 | if(is_int($limit) && $limit > 0) { |
| 92 | $queryStr .= " LIMIT ".$limit; |
| 93 | if(is_int($offset) && $offset > 0) |
| 94 | $queryStr .= " OFFSET ".$offset; |
| 95 | } |
| 96 | |
| 97 | $resArr = $db->getResultArray($queryStr); |
| 98 | if (is_bool($resArr) && $resArr == false) |
| 99 | return false; |
| 100 | |
| 101 | $this->_documents = $resArr; |
| 102 | } /* }}} */ |
| 103 | } |
| 104 | |
| 105 | class FolderIterator implements \Iterator { /* {{{ */ |
| 106 | /** |
| 107 | * @var object folder |
| 108 | */ |
| 109 | protected $_folder; |
| 110 | |
| 111 | /** |
| 112 | * @var object dms |
| 113 | */ |
| 114 | protected $_dms; |
| 115 | |
| 116 | /** |
| 117 | * @var array documents |
| 118 | */ |
| 119 | protected $_folders; |
| 120 | |
| 121 | /** |
| 122 | * @var int $_pointer |
| 123 | */ |
| 124 | protected $_pointer; |
| 125 | |
| 126 | /** |
| 127 | * @var array $_cache |
| 128 | */ |
| 129 | protected $_cache; |
| 130 | |
| 131 | public function __construct($folder) { /* {{{ */ |
| 132 | $this->_folder = $folder; |
| 133 | $this->_dms = $folder->getDMS(); |
| 134 | $this->_folders = array(); |
| 135 | $this->_pointer = 0; |
| 136 | $this->_cache = array(); |
| 137 | $this->populate(); |
| 138 | } /* }}} */ |
| 139 | |
| 140 | #[\ReturnTypeWillChange] |
| 141 | public function rewind() { /* {{{ */ |
| 142 | $this->_pointer = 0; |
| 143 | } /* }}} */ |
| 144 | |
| 145 | #[\ReturnTypeWillChange] |
| 146 | public function valid() { /* {{{ */ |
| 147 | return isset($this->_folders[$this->_pointer]); |
| 148 | } /* }}} */ |
| 149 | |
| 150 | #[\ReturnTypeWillChange] |
| 151 | public function next() { /* {{{ */ |
| 152 | $this->_pointer++; |
| 153 | } /* }}} */ |
| 154 | |
| 155 | #[\ReturnTypeWillChange] |
| 156 | public function key() { /* {{{ */ |
| 157 | return $this->_folders[$this->_pointer]; |
| 158 | } /* }}} */ |
| 159 | |
| 160 | #[\ReturnTypeWillChange] |
| 161 | public function current() { /* {{{ */ |
| 162 | if($this->_folders[$this->_pointer]) { |
| 163 | $folderid = $this->_folders[$this->_pointer]['id']; |
| 164 | if(!isset($this->_cache[$folderid])) { |
| 165 | // echo $folderid." not cached<br />"; |
| 166 | $this->_cache[$folderid] = $this->_dms->getFolder($folderid); |
| 167 | } |
| 168 | return $this->_cache[$folderid]; |
| 169 | } |
| 170 | return null; |
| 171 | } /* }}} */ |
| 172 | |
| 173 | private function populate($orderby="", $dir="asc", $limit=0, $offset=0) { /* {{{ */ |
| 174 | $db = $this->_dms->getDB(); |
| 175 | |
| 176 | $queryStr = "SELECT `id` FROM `tblFolders` WHERE `parent` = " . $this->_folder->getID(); |
| 177 | |
| 178 | if ($orderby && $orderby[0]=="n") $queryStr .= " ORDER BY `name`"; |
| 179 | elseif ($orderby && $orderby[0]=="s") $queryStr .= " ORDER BY `sequence`"; |
| 180 | elseif ($orderby && $orderby[0]=="d") $queryStr .= " ORDER BY `date`"; |
| 181 | if($dir == 'desc') |
| 182 | $queryStr .= " DESC"; |
| 183 | if(is_int($limit) && $limit > 0) { |
| 184 | $queryStr .= " LIMIT ".$limit; |
| 185 | if(is_int($offset) && $offset > 0) |
| 186 | $queryStr .= " OFFSET ".$offset; |
| 187 | } |
| 188 | |
| 189 | $resArr = $db->getResultArray($queryStr); |
| 190 | if (is_bool($resArr) && $resArr == false) |
| 191 | return false; |
| 192 | |
| 193 | $this->_folders = $resArr; |
| 194 | } /* }}} */ |
| 195 | } /* }}} */ |
| 196 | |
| 197 | /** |
| 198 | * The FolderFilterIterator checks if the given user has access on |
| 199 | * the current folder. |
| 200 | * FilterIterator uses an inner iterator passed to the constructor |
| 201 | * to iterate over the sub folders of a folder. |
| 202 | * |
| 203 | $iter = new FolderIterator($folder); |
| 204 | $iter2 = new FolderFilterIterator($iter, $user); |
| 205 | foreach($iter2 as $ff) { |
| 206 | echo $ff->getName()."<br />"; |
| 207 | } |
| 208 | */ |
| 209 | class FolderFilterIterator extends \FilterIterator { /* {{{ */ |
| 210 | public function __construct(Iterator $iterator , $filter ) { |
| 211 | parent::__construct($iterator); |
| 212 | $this->userFilter = $filter; |
| 213 | } |
| 214 | public function accept(): bool { /* {{{ */ |
| 215 | $folder = $this->getInnerIterator()->current(); |
| 216 | echo "accept() for ".$folder->getName()."<br />"; |
| 217 | return true; |
| 218 | } /* }}} */ |
| 219 | } /* }}} */ |
| 220 | |
| 221 | /** |
| 222 | $iter = new RecursiveFolderIterator($folder); |
| 223 | $iter2 = new RecursiveIteratorIterator($iter, RecursiveIteratorIterator::SELF_FIRST); |
| 224 | foreach($iter2 as $ff) { |
| 225 | echo $ff->getID().': '.$ff->getName()."<br />"; |
| 226 | } |
| 227 | */ |
| 228 | class RecursiveFolderIterator extends FolderIterator implements \RecursiveIterator { /* {{{ */ |
| 229 | |
| 230 | #[\ReturnTypeWillChange] |
| 231 | public function hasChildren() { /* {{{ */ |
| 232 | $db = $this->_dms->getDB(); |
| 233 | $queryStr = "SELECT id FROM `tblFolders` WHERE `parent` = ".(int) $this->current()->getID(); |
| 234 | $resArr = $db->getResultArray($queryStr); |
| 235 | if (is_bool($resArr) && !$resArr) |
| 236 | return false; |
| 237 | return true; |
| 238 | } /* }}} */ |
| 239 | |
| 240 | #[\ReturnTypeWillChange] |
| 241 | public function getChildren() { /* {{{ */ |
| 242 | return new RecursiveFolderIterator($this->current()); |
| 243 | } /* }}} */ |
| 244 | } /* }}} */ |
| 245 | |
| 246 | class RecursiveFolderFilterIterator extends FolderFilterIterator { /* {{{ */ |
| 247 | public function hasChildren() { /* {{{ */ |
| 248 | $db = $this->_dms->getDB(); |
| 249 | $queryStr = "SELECT id FROM `tblFolders` WHERE `parent` = ".(int) $this->current()->getID(); |
| 250 | $resArr = $db->getResultArray($queryStr); |
| 251 | if (is_bool($resArr) && !$resArr) |
| 252 | return false; |
| 253 | return true; |
| 254 | } /* }}} */ |
| 255 | |
| 256 | public function getChildren() { /* {{{ */ |
| 257 | return new RecursiveFolderIterator($this->current()); |
| 258 | } /* }}} */ |
| 259 | |
| 260 | } /* }}} */ |