PHP ilTree::getChildsByType方法代码示例

 /**
  * get childs by type
  * @group IL_Init
  * @static
  */
 public function testGetChildsByType()
 {
     $tree = new ilTree(ROOT_FOLDER_ID);
     $childs = $tree->getChildsByType(9, 'cals');
     // only calendar settings
     $this->assertEquals(count($childs), 1);
 }

 /**
  * Get pages of chapter
  *
  * @param
  * @return
  */
 static function getPagesOfChapter($a_lm_id, $a_chap_id)
 {
     // update structure entries: if at least one page of a chapter is public set chapter to public too
     $lm_tree = new ilTree($a_lm_id);
     $lm_tree->setTableNames('lm_tree', 'lm_data');
     $lm_tree->setTreeTablePK("lm_id");
     $lm_tree->readRootId();
     $childs = $lm_tree->getChildsByType($a_chap_id, "pg");
     return $childs;
 }

 /**
  * put chapter into tree
  */
 function putInTree()
 {
     //echo "st:putInTree";
     // chapters should be behind pages in the tree
     // so if target is first node, the target is substituted with
     // the last child of type pg
     if ($_GET["target"] == IL_FIRST_NODE) {
         $tree = new ilTree($this->content_object->getId());
         $tree->setTableNames('lm_tree', 'lm_data');
         $tree->setTreeTablePK("lm_id");
         // determine parent node id
         $parent_id = !empty($_GET["obj_id"]) ? $_GET["obj_id"] : $tree->getRootId();
         // determine last child of type pg
         $childs =& $tree->getChildsByType($parent_id, "pg");
         if (count($childs) != 0) {
             $_GET["target"] = $childs[count($childs) - 1]["obj_id"];
         }
     }
     if (empty($_GET["target"])) {
         $_GET["target"] = IL_LAST_NODE;
     }
     parent::putInTree();
 }

 /**
  * presentation title doesn't have to be page title, it may be
  * chapter title + page title or chapter title only, depending on settings
  *
  * @param	string	$a_mode		IL_CHAPTER_TITLE | IL_PAGE_TITLE | IL_NO_HEADER
  */
 function _getPresentationTitle($a_pg_id, $a_mode = IL_CHAPTER_TITLE, $a_include_numbers = false, $a_time_scheduled_activation = false, $a_force_content = false)
 {
     global $ilDB;
     // select
     $query = "SELECT * FROM lm_data WHERE obj_id = " . $ilDB->quote($a_pg_id, "integer");
     $pg_set = $ilDB->query($query);
     $pg_rec = $ilDB->fetchAssoc($pg_set);
     if ($a_mode == IL_NO_HEADER && !$a_force_content) {
         return "";
     }
     $tree = new ilTree($pg_rec["lm_id"]);
     $tree->setTableNames('lm_tree', 'lm_data');
     $tree->setTreeTablePK("lm_id");
     if ($a_mode == IL_PAGE_TITLE) {
         $nr = "";
         return $nr . $pg_rec["title"];
     }
     if ($tree->isInTree($pg_rec["obj_id"])) {
         $pred_node = $tree->fetchPredecessorNode($pg_rec["obj_id"], "st");
         $childs = $tree->getChildsByType($pred_node["obj_id"], "pg");
         $cnt_str = "";
         if (count($childs) > 1) {
             $cnt = 0;
             foreach ($childs as $child) {
                 include_once "./Services/COPage/classes/class.ilPageObject.php";
                 $active = ilPageObject::_lookupActive($child["obj_id"], ilObject::_lookupType($pg_rec["lm_id"]), $a_time_scheduled_activation);
                 if (!$active) {
                     $act_data = ilPageObject::_lookupActivationData((int) $child["obj_id"], ilObject::_lookupType($pg_rec["lm_id"]));
                     if ($act_data["show_activation_info"] && ilUtil::now() < $act_data["activation_start"]) {
                         $active = true;
                     }
                 }
                 if ($child["type"] != "pg" || $active) {
                     $cnt++;
                 }
                 if ($child["obj_id"] == $pg_rec["obj_id"]) {
                     $cur_cnt = $cnt;
                 }
             }
             if ($cnt > 1) {
                 $cnt_str = " (" . $cur_cnt . "/" . $cnt . ")";
             }
         }
         require_once "./Modules/LearningModule/classes/class.ilStructureObject.php";
         //$struct_obj =& new ilStructureObject($pred_node["obj_id"]);
         //return $struct_obj->getTitle();
         return ilStructureObject::_getPresentationTitle($pred_node["obj_id"], $a_include_numbers) . $cnt_str;
         //return $pred_node["title"].$cnt_str;
     } else {
         return $pg_rec["title"];
     }
 }

 /**
  * Execute Drag Drop Action
  *
  * @param	string	$source_id		Source element ID
  * @param	string	$target_id		Target element ID
  * @param	string	$first_child	Insert as first child of target
  * @param	string	$movecopy		Position ("move" | "copy")
  */
 function executeDragDrop($source_id, $target_id, $first_child, $as_subitem = false, $movecopy = "move")
 {
     $lmtree = new ilTree($this->getId());
     $lmtree->setTableNames('lm_tree', 'lm_data');
     $lmtree->setTreeTablePK("lm_id");
     //echo "-".$source_id."-".$target_id."-".$first_child."-".$as_subitem."-";
     $source_obj = ilLMObjectFactory::getInstance($this, $source_id, true);
     $source_obj->setLMId($this->getId());
     if (!$first_child) {
         $target_obj = ilLMObjectFactory::getInstance($this, $target_id, true);
         $target_obj->setLMId($this->getId());
         $target_parent = $lmtree->getParentId($target_id);
     }
     // handle pages
     if ($source_obj->getType() == "pg") {
         //echo "1";
         if ($lmtree->isInTree($source_obj->getId())) {
             $node_data = $lmtree->getNodeData($source_obj->getId());
             // cut on move
             if ($movecopy == "move") {
                 $parent_id = $lmtree->getParentId($source_obj->getId());
                 $lmtree->deleteTree($node_data);
                 // write history entry
                 require_once "./Services/History/classes/class.ilHistory.php";
                 ilHistory::_createEntry($source_obj->getId(), "cut", array(ilLMObject::_lookupTitle($parent_id), $parent_id), $this->getType() . ":pg");
                 ilHistory::_createEntry($parent_id, "cut_page", array(ilLMObject::_lookupTitle($source_obj->getId()), $source_obj->getId()), $this->getType() . ":st");
             } else {
                 // copy page
                 $new_page =& $source_obj->copy();
                 $source_id = $new_page->getId();
                 $source_obj =& $new_page;
             }
             // paste page
             if (!$lmtree->isInTree($source_obj->getId())) {
                 if ($first_child) {
                     $target_pos = IL_FIRST_NODE;
                     $parent = $target_id;
                 } else {
                     if ($as_subitem) {
                         $parent = $target_id;
                         $target_pos = IL_FIRST_NODE;
                         $pg_childs =& $lmtree->getChildsByType($parent, "pg");
                         if (count($pg_childs) != 0) {
                             $target_pos = $pg_childs[count($pg_childs) - 1]["obj_id"];
                         }
                     } else {
                         $target_pos = $target_id;
                         $parent = $target_parent;
                     }
                 }
                 // insert page into tree
                 $lmtree->insertNode($source_obj->getId(), $parent, $target_pos);
                 // write history entry
                 if ($movecopy == "move") {
                     // write history comments
                     include_once "./Services/History/classes/class.ilHistory.php";
                     ilHistory::_createEntry($source_obj->getId(), "paste", array(ilLMObject::_lookupTitle($parent), $parent), $this->getType() . ":pg");
                     ilHistory::_createEntry($parent, "paste_page", array(ilLMObject::_lookupTitle($source_obj->getId()), $source_obj->getId()), $this->getType() . ":st");
                 }
             }
         }
     }
     // handle chapters
     if ($source_obj->getType() == "st") {
         //echo "2";
         $source_node = $lmtree->getNodeData($source_id);
         $subnodes = $lmtree->getSubtree($source_node);
         // check, if target is within subtree
         foreach ($subnodes as $subnode) {
             if ($subnode["obj_id"] == $target_id) {
                 return;
             }
         }
         $target_pos = $target_id;
         if ($first_child) {
             $target_pos = IL_FIRST_NODE;
             $target_parent = $target_id;
             $pg_childs =& $lmtree->getChildsByType($target_parent, "pg");
             if (count($pg_childs) != 0) {
                 $target_pos = $pg_childs[count($pg_childs) - 1]["obj_id"];
             }
         } else {
             if ($as_subitem) {
                 $target_parent = $target_id;
                 $target_pos = IL_FIRST_NODE;
                 $childs =& $lmtree->getChilds($target_parent);
                 if (count($childs) != 0) {
                     $target_pos = $childs[count($childs) - 1]["obj_id"];
                 }
             }
         }
         // insert into
//.........这里部分代码省略.........

 /**
  * put this object into content object tree
  */
 function putInTree()
 {
     $tree = new ilTree($this->content_object->getId());
     $tree->setTableNames('lm_tree', 'lm_data');
     $tree->setTreeTablePK("lm_id");
     $parent_id = !empty($_GET["obj_id"]) ? $_GET["obj_id"] : $tree->getRootId();
     if (!empty($_GET["target"])) {
         $target = $_GET["target"];
     } else {
         // determine last child of current type
         $childs =& $tree->getChildsByType($parent_id, $this->obj->getType());
         if (count($childs) == 0) {
             $target = IL_FIRST_NODE;
         } else {
             $target = $childs[count($childs) - 1]["obj_id"];
         }
     }
     if (!$tree->isInTree($this->obj->getId())) {
         $tree->insertNode($this->obj->getId(), $parent_id, $target);
     }
 }