class.ilNewsItemGUI.php

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<?php

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

include_once("./Services/News/classes/class.ilNewsItem.php");

define("IL_FORM_EDIT", 0);
define("IL_FORM_CREATE", 1);
define("IL_FORM_RE_EDIT", 2);
define("IL_FORM_RE_CREATE", 3);

class ilNewsItemGUI
{
        protected $enable_edit = 0;
        protected $context_obj_id;
        protected $context_obj_type;
        protected $context_sub_obj_id;
        protected $context_sub_obj_type;
        protected $form_edit_mode;


        function __construct()
        {
                global $ilCtrl, $lng;
                
                $this->ctrl = $ilCtrl;

                include_once("Services/News/classes/class.ilNewsItem.php");
                if ($_GET["news_item_id"] > 0)
                {
                        $this->news_item = new ilNewsItem($_GET["news_item_id"]);
                }

                $this->ctrl->saveParameter($this, array("news_item_id"));

                // Init EnableEdit.
                $this->setEnableEdit(false);

                // Init Context.
                $this->setContextObjId($ilCtrl->getContextObjId());
                $this->setContextObjType($ilCtrl->getContextObjType());
                $this->setContextSubObjId($ilCtrl->getContextSubObjId());
                $this->setContextSubObjType($ilCtrl->getContextSubObjType());

                $lng->loadLanguageModule("news");

                $ilCtrl->saveParameter($this, "add_mode");
        }

        function getHTML()
        {
                global $lng, $ilCtrl;
                
                $lng->LoadLanguageModule("news");
                
                return $this->getNewsForContextBlock();
        }

        public function &executeCommand()
        {
                global $ilCtrl;

                // get next class and command
                $next_class = $this->ctrl->getNextClass($this);
                $cmd = $this->ctrl->getCmd();

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

                return $html;

        }

        public function setEnableEdit($a_enable_edit = 0)
        {
                $this->enable_edit = $a_enable_edit;
        }

        public function getEnableEdit()
        {
                return $this->enable_edit;
        }

        public function setContextObjId($a_context_obj_id)
        {
                $this->context_obj_id = $a_context_obj_id;
        }

        public function getContextObjId()
        {
                return $this->context_obj_id;
        }

        public function setContextObjType($a_context_obj_type)
        {
                $this->context_obj_type = $a_context_obj_type;
        }

        public function getContextObjType()
        {
                return $this->context_obj_type;
        }

        public function setContextSubObjId($a_context_sub_obj_id)
        {
                $this->context_sub_obj_id = $a_context_sub_obj_id;
        }

        public function getContextSubObjId()
        {
                return $this->context_sub_obj_id;
        }

        public function setContextSubObjType($a_context_sub_obj_type)
        {
                $this->context_sub_obj_type = $a_context_sub_obj_type;
        }

        public function getContextSubObjType()
        {
                return $this->context_sub_obj_type;
        }

        public function setFormEditMode($a_form_edit_mode)
        {
                $this->form_edit_mode = $a_form_edit_mode;
        }

        public function getFormEditMode()
        {
                return $this->form_edit_mode;
        }

        public function createNewsItem()
        {
                $this->initFormNewsItem(IL_FORM_CREATE);
                return $this->form_gui->getHtml();
        }

        public function editNewsItem()
        {
                $this->initFormNewsItem(IL_FORM_EDIT);
                $this->getValuesNewsItem();
                return $this->form_gui->getHtml();

        }


        public function initFormNewsItem($a_mode)
        {
                global $lng, $ilTabs;

                $ilTabs->clearTargets();
                //$this->setTabs();

                $lng->loadLanguageModule("news");

                include("Services/Form/classes/class.ilPropertyFormGUI.php");

                $this->form_gui = new ilPropertyFormGUI();


                // Property Title
                $text_input = new ilTextInputGUI($lng->txt("news_news_item_title"), "news_title");
                $text_input->setInfo("");
                $text_input->setRequired(true);
                $text_input->setMaxLength(200);
                $this->form_gui->addItem($text_input);

                // Property Content
                $text_area = new ilTextAreaInputGUI($lng->txt("news_news_item_content"), "news_content");
                $text_area->setInfo("");
                $text_area->setRequired(false);
                $this->form_gui->addItem($text_area);

                // Property Visibility
                $radio_group = new ilRadioGroupInputGUI($lng->txt("news_news_item_visibility"), "news_visibility");
                $radio_option = new ilRadioOption($lng->txt("news_visibility_users"), "users");
                $radio_group->addOption($radio_option);
                $radio_option = new ilRadioOption($lng->txt("news_visibility_public"), "public");
                $radio_group->addOption($radio_option);
                $radio_group->setInfo($lng->txt("news_news_item_visibility_info"));
                $radio_group->setRequired(false);
                $radio_group->setValue("users");
                $this->form_gui->addItem($radio_group);

                // Property ContentLong
                $text_area = new ilTextAreaInputGUI($lng->txt("news_news_item_content_long"), "news_content_long");
                $text_area->setInfo($lng->txt("news_news_item_content_long_info"));
                $text_area->setRequired(false);
                $text_area->setCols("40");
                $text_area->setRows("8");
                $text_area->setUseRte(true);
                $this->form_gui->addItem($text_area);


                // save and cancel commands
                if (in_array($a_mode, array(IL_FORM_CREATE,IL_FORM_RE_CREATE)))
                {
                        $this->form_gui->addCommandButton("saveNewsItem", $lng->txt("save"));
                        $this->form_gui->addCommandButton("cancelSaveNewsItem", $lng->txt("cancel"));
                }
                else
                {
                        $this->form_gui->addCommandButton("updateNewsItem", $lng->txt("save"));
                        $this->form_gui->addCommandButton("cancelUpdateNewsItem", $lng->txt("cancel"));
                }

                $this->form_gui->setTitle($lng->txt("news_news_item_head"));
                $this->form_gui->setFormAction($this->ctrl->getFormAction($this));

                $news_set = new ilSetting("news");
                if (!$news_set->get("enable_rss_for_internal"))
                {
                        $this->form_gui->removeItemByPostVar("news_visibility");
                }
                else
                {
                        $nv = $this->form_gui->getItemByPostVar("news_visibility");
                        if (is_object($nv))
                        {
                                $nv->setValue(ilNewsItem::_getDefaultVisibilityForRefId($_GET["ref_id"]));
                        }
                }

        }

        public function getValuesNewsItem()
        {
                $values = array();

                $values["news_title"] = $this->news_item->getTitle();
                $values["news_content"] = $this->news_item->getContent();
                $values["news_visibility"] = $this->news_item->getVisibility();
                $values["news_content_long"] = $this->news_item->getContentLong();

                $this->form_gui->setValuesByArray($values);

        }

        function saveNewsItem()
        {
                global $ilUser;

                if (!$this->getEnableEdit())
                {
                        return;
                }

                $this->initFormNewsItem(IL_FORM_CREATE);
                if ($this->form_gui->checkInput())
                {
                        $this->news_item = new ilNewsItem();
                        $this->news_item->setTitle($this->form_gui->getInput("news_title"));
                        $this->news_item->setContent($this->form_gui->getInput("news_content"));
                        $this->news_item->setVisibility($this->form_gui->getInput("news_visibility"));
                        $this->news_item->setContentLong($this->form_gui->getInput("news_content_long"));

// changed
                        //$this->news_item->setContextObjId($this->ctrl->getContextObjId());
                        //$this->news_item->setContextObjType($this->ctrl->getContextObjType());
                        $this->news_item->setContextObjId($this->getContextObjId());
                        $this->news_item->setContextObjType($this->getContextObjType());
                        $this->news_item->setContextSubObjId($this->getContextSubObjId());
                        $this->news_item->setContextSubObjType($this->getContextSubObjType());
                        $this->news_item->setUserId($ilUser->getId());

                        $news_set = new ilSetting("news");
                        if (!$news_set->get("enable_rss_for_internal"))
                        {
                                $this->news_item->setVisibility("users");
                        }

                        $this->news_item->create();
                        $this->exitSaveNewsItem();
                }
                else
                {
                        $this->form_gui->setValuesByPost();
                        return $this->form_gui->getHtml();
                }

        }

        function exitSaveNewsItem()
        {
                global $ilCtrl;

                if ($_GET["add_mode"] == "block")
                {
                        $ilCtrl->returnToParent($this);
                }
                else
                {
                        $ilCtrl->redirect($this, "editNews");
                }
        }

        function updateNewsItem()
        {
                if (!$this->getEnableEdit())
                {
                        return;
                }

                $this->initFormNewsItem(IL_FORM_EDIT);
                if ($this->form_gui->checkInput())
                {

                        $this->news_item->setTitle($this->form_gui->getInput("news_title"));
                        $this->news_item->setContent($this->form_gui->getInput("news_content"));
                        $this->news_item->setVisibility($this->form_gui->getInput("news_visibility"));
                        $this->news_item->setContentLong($this->form_gui->getInput("news_content_long"));
                        $this->news_item->update();
                        $this->exitUpdateNewsItem();
                }
                else
                {
                        $this->form_gui->setValuesByPost();
                        return $this->form_gui->getHtml();
                }
        }

        function exitUpdateNewsItem()
        {
                global $ilCtrl;

                $ilCtrl->redirect($this, "editNews");
        }

        function cancelUpdateNewsItem()
        {
                return $this->editNews();
        }

        function cancelSaveNewsItem()
        {
                global $ilCtrl;

                if ($_GET["add_mode"] == "block")
                {
                        $ilCtrl->returnToParent($this);
                }
                else
                {
                        return $this->editNews();
                }
        }

        function editNews()
        {
                global $ilTabs, $ilToolbar, $lng, $ilCtrl;

                $this->setTabs();

                $ilToolbar->addButton($lng->txt("news_add_news"),
                        $ilCtrl->getLinkTarget($this, "createNewsItem"));

                if (!$this->getEnableEdit())
                {
                        return;
                }
                return $this->getNewsForContextTable();
        }

        function cancelUpdate()
        {
                return $this->editNews();
        }

        function confirmDeletionNewsItems()
        {
                global $ilCtrl, $lng, $ilTabs;

                if (!$this->getEnableEdit())
                {
                        return;
                }

                // check whether at least one item is selected
                if (count($_POST["news_id"]) == 0)
                {
                        ilUtil::sendFailure($lng->txt("no_checkbox"));
                        return $this->editNews();
                }

                $ilTabs->clearTargets();

                include_once("Services/Utilities/classes/class.ilConfirmationGUI.php");
                $c_gui = new ilConfirmationGUI();

                // set confirm/cancel commands
                $c_gui->setFormAction($ilCtrl->getFormAction($this, "deleteNewsItems"));
                $c_gui->setHeaderText($lng->txt("info_delete_sure"));
                $c_gui->setCancel($lng->txt("cancel"), "editNews");
                $c_gui->setConfirm($lng->txt("confirm"), "deleteNewsItems");

                // add items to delete
                foreach($_POST["news_id"] as $news_id)
                {
                        $news = new ilNewsItem($news_id);
                        $c_gui->addItem("news_id[]", $news_id, $news->getTitle());
                }

                return $c_gui->getHTML();
        }

        function deleteNewsItems()
        {
                if (!$this->getEnableEdit())
                {
                        return;
                }
                // delete all selected news items
                foreach($_POST["news_id"] as $news_id)
                {
                        $news = new ilNewsItem($news_id);
                        $news->delete();
                }

                return $this->editNews();
        }

        public function getNewsForContextBlock()
        {
                global $lng;

                include_once("Services/News/classes/class.ilNewsForContextBlockGUI.php");
                $block_gui = new ilNewsForContextBlockGUI(get_class($this));

                $block_gui->setParentClass("ilinfoscreengui");
                $block_gui->setParentCmd("showSummary");
                $block_gui->setEnableEdit($this->getEnableEdit());


                $news_item = new ilNewsItem();

// changed
                //$news_item->setContextObjId($this->ctrl->getContextObjId());
                //$news_item->setContextObjType($this->ctrl->getContextObjType());
                $news_item->setContextObjId($this->getContextObjId());
                $news_item->setContextObjType($this->getContextObjType());
                $news_item->setContextSubObjId($this->getContextSubObjId());
                $news_item->setContextSubObjType($this->getContextSubObjType());

                $data = $news_item->queryNewsForContext();

                $block_gui->setTitle($lng->txt("news_block_news_for_context"));
                $block_gui->setRowTemplate("tpl.block_row_news_for_context.html", "Services/News");
                $block_gui->setData($data);

                return $block_gui->getHTML();

        }


        public function getNewsForContextTable()
        {
                global $lng;

                $news_item = new ilNewsItem();
                $news_item->setContextObjId($this->getContextObjId());
                $news_item->setContextObjType($this->getContextObjType());
                $news_item->setContextSubObjId($this->getContextSubObjId());
                $news_item->setContextSubObjType($this->getContextSubObjType());

                $perm_ref_id = 0;
                if (in_array($this->getContextObjType(), array("cat", "grp", "crs", "root")))
                {
                        $data = $news_item->getNewsForRefId($_GET["ref_id"], false, false,
                                0, true, false, true, true);
                }
                else
                {
                        $perm_ref_id = $_GET["ref_id"];
                        if ($this->getContextSubObjId() > 0)
                        {
                                $data = $news_item->queryNewsForContext(false, 0,
                                        "", true, true);
                        }
                        else
                        {
                                $data = $news_item->queryNewsForContext();
                        }
                }

                include_once("Services/News/classes/class.ilNewsForContextTableGUI.php");
                $table_gui = new ilNewsForContextTableGUI($this, "getNewsForContextTable", $perm_ref_id);

                $table_gui->setTitle($lng->txt("news_table_news_for_context"));
                $table_gui->setRowTemplate("tpl.table_row_news_for_context.html", "Services/News");
                $table_gui->setData($data);

                $table_gui->setDefaultOrderField("creation_date");
                $table_gui->setDefaultOrderDirection("desc");
                $table_gui->addMultiCommand("confirmDeletionNewsItems", $lng->txt("delete"));
                $table_gui->setTitle($lng->txt("news"));
                $table_gui->setSelectAllCheckbox("news_id");


                return $table_gui->getHTML();

        }
        
        function setTabs()
        {
                global $ilTabs, $ilCtrl, $lng;

                $ilTabs->clearTargets();
                $ilTabs->setBackTarget($lng->txt("back"),
                        $ilCtrl->getParentReturnByClass("ilnewsitemgui"));
        }
}