class.ilPCResourcesGUI.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once("./Services/COPage/classes/class.ilPCResources.php");
require_once("./Services/COPage/classes/class.ilPageContentGUI.php");

class ilPCResourcesGUI extends ilPageContentGUI
{

        function ilPCResourcesGUI(&$a_pg_obj, &$a_content_obj, $a_hier_id, $a_pc_id = "")
        {
                global $tree;
                
                $this->rep_tree = $tree;
                parent::ilPageContentGUI($a_pg_obj, $a_content_obj, $a_hier_id, $a_pc_id);
        }

        function &executeCommand()
        {
                // get next class that processes or forwards current command
                $next_class = $this->ctrl->getNextClass($this);

                // get current command
                $cmd = $this->ctrl->getCmd();

                switch($next_class)
                {
                        default:
                                $ret =& $this->$cmd();
                                break;
                }

                return $ret;
        }

        function insert()
        {
                $this->edit(true);
        }

        function edit($a_insert = false)
        {
                global $ilCtrl, $tpl, $lng, $objDefinition;
                
                $this->displayValidationError();
                
                // edit form
                include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
                $form = new ilPropertyFormGUI();
                $form->setFormAction($ilCtrl->getFormAction($this));
                if ($a_insert)
                {
                        $form->setTitle($this->lng->txt("cont_insert_resources"));
                }
                else
                {
                        $form->setTitle($this->lng->txt("cont_update_resources"));
                }
                
                // count number of existing objects per type and collect item groups
                $ref_id = (int) $_GET["ref_id"];
                $childs = $this->rep_tree->getChilds($ref_id);
                $type_counts = array();
                $item_groups = array();
                foreach ($childs as $c)
                {
                        // see bug #12471
                        //echo "<br>-".$c["type"]."-".$objDefinition->getGroupOfObj($c["type"])."-";
                        $key = ($objDefinition->getGroupOfObj($c["type"]) != "")
                                ? $objDefinition->getGroupOfObj($c["type"])
                                : $c["type"];
                        $type_counts[$key] += 1;
                        if ($c["type"] == "itgr")
                        {
                                $item_groups[$c["ref_id"]] = $c["title"];
                        }
                }
                
                if (count($item_groups) > 0)
                {
                        // radio group for type selection
                        $radg = new ilRadioGroupInputGUI($lng->txt("cont_resources"), "res_type");
                        if (!$a_insert && $this->content_obj->getMainType() == "ItemGroup")
                        {
                                $radg->setValue("itgr");
                        }
                        else
                        {
                                $radg->setValue("by_type");
                        }
                        
                        $op_type = new ilRadioOption($lng->txt("cont_resources_of_type"), "by_type", "");
                        $radg->addOption($op_type);
                        $op_itemgroup = new ilRadioOption($lng->txt("obj_itgr"), "itgr", "");
                        $radg->addOption($op_itemgroup);
                        $form->addItem($radg);
                }
                
                // type selection
                $type_prop = new ilSelectInputGUI($this->lng->txt("cont_type"),
                        "type");
                $obj_id = ilObject::_lookupObjId($_GET["ref_id"]);
                $obj_type = ilObject::_lookupType($obj_id);
                $sub_objs = $objDefinition->getGroupedRepositoryObjectTypes($obj_type);
                $types = array();
                foreach($sub_objs as $k => $so)
                {
                        if ($k != "itgr")
                        {
                                $types[$k] = $this->lng->txt("objs_".$k)." (".(int) $type_counts[$k].")";
                        }
                }
                $type_prop->setOptions($types);
                $selected = ($a_insert)
                        ? ""
                        : $this->content_obj->getResourceListType();
                $type_prop->setValue($selected);
                if (count($item_groups) > 0)
                {
                        $op_type->addSubItem($type_prop);
                }
                else
                {
                        $form->addItem($type_prop);
                }
                
                if (count($item_groups) > 0)
                {
                        // item groups
                        $options = $item_groups;
                        $si = new ilSelectInputGUI($this->lng->txt("obj_itgr"), "itgr");
                        $si->setOptions($options);
                        $selected = ($a_insert)
                                ? ""
                                : $this->content_obj->getItemGroupRefId();
                        $op_itemgroup->addSubItem($si);
                }
                        
                
                // save/cancel buttons
                if ($a_insert)
                {
                        $form->addCommandButton("create_resources", $lng->txt("save"));
                        $form->addCommandButton("cancelCreate", $lng->txt("cancel"));
                }
                else
                {
                        $form->addCommandButton("update_resources", $lng->txt("save"));
                        $form->addCommandButton("cancelUpdate", $lng->txt("cancel"));
                }
                $html = $form->getHTML();
                $tpl->setContent($html);
                return $ret;

        }


        function create()
        {
                $this->content_obj = new ilPCResources($this->getPage());
                $this->content_obj->create($this->pg_obj, $this->hier_id, $this->pc_id);
                
                if ($_POST["res_type"] != "itgr")
                {
                        $this->content_obj->setResourceListType(ilUtil::stripSlashes($_POST["type"]));
                }
                else
                {
                        $this->content_obj->setItemGroupRefId(ilUtil::stripSlashes($_POST["itgr"]));
                }
                $this->updated = $this->pg_obj->update();
                if ($this->updated === true)
                {
                        $this->ctrl->returnToParent($this, "jump".$this->hier_id);
                }
                else
                {
                        $this->insert();
                }
        }

        function update()
        {
                if ($_POST["res_type"] != "itgr")
                {
                        $this->content_obj->setResourceListType(ilUtil::stripSlashes($_POST["type"]));
                }
                else
                {
                        $this->content_obj->setItemGroupRefId(ilUtil::stripSlashes($_POST["itgr"]));
                }
                $this->updated = $this->pg_obj->update();
                if ($this->updated === true)
                {
                        $this->ctrl->returnToParent($this, "jump".$this->hier_id);
                }
                else
                {
                        $this->pg_obj->addHierIDs();
                        $this->edit();
                }
        }
        
        static function insertResourcesIntoPageContent($a_content)
        {
                global $objDefinition, $tree, $lng;

                $ref_id = (int) $_GET["ref_id"];
                $obj_id = (int) ilObject::_lookupObjId($ref_id);
                $obj_type = ilObject::_lookupType($obj_id);
                
                // determine type -> group
                $type_to_grp = array();
                $type_grps =
                        $objDefinition->getGroupedRepositoryObjectTypes($obj_type);
                foreach ($type_grps as $grp => $def)
                {
                        foreach ($def["objs"] as $t)
                        {
                                $type_to_grp[$t] = $grp;
                        }
                }

                $childs = $tree->getChilds($ref_id);
                $childs_by_type = array();
                $item_groups = array();
                foreach ($childs as $child)
                {
                        $childs_by_type[$type_to_grp[$child["type"]]][] = $child;
                        if ($child["type"] == "itgr")
                        {
                                $item_groups[(int) $child["ref_id"]] = $child["title"];
                        }
                }

                // handle "by type" lists
                foreach ($type_grps as $type => $v)
                {
                        if (is_int(strpos($a_content, "[list-".$type."]")))
                        {
                                // render block
                                $tpl = new ilTemplate("tpl.resource_block.html", true, true, "Services/COPage");
                                $cnt = 0;
                                
                                if (is_array($childs_by_type[$type]) && count($childs_by_type[$type]) > 0)
                                {
                                        foreach ($childs_by_type[$type] as $child)
                                        {
                                                $tpl->setCurrentBlock("row");
                                                $tpl->setVariable("IMG", ilUtil::img(ilObject::_getIcon($child["obj_id"], "small")));
                                                $tpl->setVariable("TITLE", $child["title"]);
                                                $tpl->parseCurrentBlock();
                                                $cnt++;
                                        }
                                        $tpl->setVariable("HEADER", $lng->txt("objs_".$type));
                                        $a_content = str_replace("[list-".$type."]", $tpl->get(), $a_content);
                                }
                                else
                                {
                                        $tpl->setCurrentBlock("row");
                                        $tpl->setVariable("TITLE", $lng->txt("no_items"));
                                        $tpl->parseCurrentBlock();
                                        $tpl->setVariable("HEADER", $lng->txt("objs_".$type));
                                        $a_content = str_replace("[list-".$type."]", $tpl->get(), $a_content);
                                }
                        }
                }
                
                // handle item groups
                while (eregi("\[(item-group-([0-9]*))\]", $a_content, $found))
                {
                        $itgr_ref_id = (int) $found[2];
                        
                        // check whether this item group is child -> insert editing html
                        if (isset($item_groups[$itgr_ref_id]))
                        {
                                include_once("./Modules/ItemGroup/classes/class.ilItemGroupItems.php");
                                $itgr_items = new ilItemGroupItems($itgr_ref_id);
                                $items = $itgr_items->getValidItems();
                                
                                // render block
                                $tpl = new ilTemplate("tpl.resource_block.html", true, true, "Services/COPage");
                                foreach ($items as $it_ref_id)
                                {
                                        $it_obj_id = ilObject::_lookupObjId($it_ref_id);
                                        $it_title = ilObject::_lookupTitle($it_obj_id);
                                        $it_type = ilObject::_lookupType($it_obj_id);

                                        // TODO: Handle this switch by module.xml definitions
                                        if(in_array($it_type, array("catr", "crsr", "grpr")))
                                        {
                                                include_once('./Services/ContainerReference/classes/class.ilContainerReference.php');
                                                $it_title = ilContainerReference::_lookupTitle($it_obj_id);
                                        }


                                        $tpl->setCurrentBlock("row");
                                        $tpl->setVariable("IMG", ilUtil::img(ilObject::_getIcon($it_obj_id, "small")));
                                        $tpl->setVariable("TITLE", $it_title);
                                        $tpl->parseCurrentBlock();
                                }
                                $tpl->setVariable("HEADER", $item_groups[$itgr_ref_id]);
                                $html = $tpl->get();
                        }
                        else
                        {
                                $html = "<i>".$lng->txt("cont_element_refers_removed_itgr")."</i>";
                        }
                        $a_content = eregi_replace("\[".$found[1]."\]", $html, $a_content);
                }
                

                return $a_content;
        }
        
}
?>