class.ilForumTopicTableGUI.php

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<?php
/* Copyright (c) 1998-2012 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once 'Services/Table/classes/class.ilTable2GUI.php';
require_once 'Services/Calendar/classes/class.ilDatePresentation.php';
require_once 'Modules/Forum/classes/class.ilForumAuthorInformation.php';
require_once 'Modules/Forum/classes/class.ilForumAuthorInformationCache.php';

class ilForumTopicTableGUI extends ilTable2GUI
{
        protected $mapper;

        protected $is_moderator = false;

        protected $ref_id = 0;

        protected $overview_setting = '';

        protected $topicData = array();

        protected $ctrl;

        protected $merge_thread_obj = NULL;

        public $position = 1;

        public function __construct($a_parent_obj, $a_parent_cmd = '', $template_context = '', $ref_id = 0, $topicData = array(), $is_moderator = false, $overview_setting = '')
        {
                global $ilCtrl, $lng, $tpl;

                $this->lng  = $lng;
                $this->ctrl = $ilCtrl;
                $this->parent_cmd = $a_parent_cmd;
                $this->setIsModerator($is_moderator);
                $this->setOverviewSetting($overview_setting);
                $this->setRefId($ref_id);
                $this->setTopicData($topicData);

                // Call this immediately in constructor
                $this->setId('frm_tt_' . substr(md5($this->parent_cmd), 0, 3) . '_'. $this->getRefId());

                // Let the database do the work
                $this->setDefaultOrderDirection('DESC');
                $this->setDefaultOrderField('is_sticky');
                $this->setExternalSorting(true);
                $this->setExternalSegmentation(true);

                parent::__construct($a_parent_obj, $a_parent_cmd, $template_context);

                // Add global css for table styles
                $tpl->addCss('./Modules/Forum/css/forum_table.css');
        }
        
        public function populate()
        {
                if($this->parent_cmd == 'mergeThreads')
                {
                        $this->initMergeThreadsTable();
                }
                else
                {
                        $this->initTopicsOverviewTable();
                }
        }

        public function initTopicsOverviewTable()
        {
                global $ilUser;

                if($this->parent_cmd  == "showThreads")
                {
                        $this->setSelectAllCheckbox('thread_ids');
                        $this->addColumn('', 'check', '1px', true);
                }
                else
                {
                        $this->addColumn('', 'check', '10px', true);
                }

                $this->addColumn($this->lng->txt('forums_thread'), 'th_title');
                $this->addColumn($this->lng->txt('forums_created_by'), 'author');
                $this->addColumn($this->lng->txt('forums_articles'), 'num_posts');
                $this->addColumn($this->lng->txt('visits'), 'num_visit');
                $this->addColumn($this->lng->txt('forums_last_post'), 'lp_date');

                // Disable sorting
                $this->disable('sort');

                // Default Form Action
                $this->setFormAction($this->ctrl->getFormAction($this->getParentObject(), 'showThreads'));

                // Row template
                $this->setRowTemplate('tpl.forums_threads_table.html', 'Modules/Forum');

                if($this->parent_cmd == 'sortThreads')
                {
                        $this->addCommandButton('saveThreadSorting', $this->lng->txt('save'));
                }
                else
                {
                        // Multi commands
                        $this->addMultiCommand('', $this->lng->txt('please_choose'));
                        if($this->ilias->getSetting('forum_notification') > 0  && !$ilUser->isAnonymous())
                        {
                                $this->addMultiCommand('enable_notifications', $this->lng->txt('forums_enable_notification'));
                                $this->addMultiCommand('disable_notifications', $this->lng->txt('forums_disable_notification'));
                        }
                        if($this->getIsModerator())
                        {
                                $this->addMultiCommand('makesticky', $this->lng->txt('make_topics_sticky'));
                                $this->addMultiCommand('unmakesticky', $this->lng->txt('make_topics_non_sticky'));
                                $this->addMultiCommand('editThread', $this->lng->txt('frm_edit_title'));
                                $this->addMultiCommand('close', $this->lng->txt('close_topics'));
                                $this->addMultiCommand('reopen', $this->lng->txt('reopen_topics'));
                                $this->addMultiCommand('move', $this->lng->txt('move_thread_to_forum'));
                        }
                        $this->addMultiCommand('html', $this->lng->txt('export_html'));
                        if($this->getIsModerator())
                        {
                                $this->addMultiCommand('confirmDeleteThreads', $this->lng->txt('delete'));
                                $this->addMultiCommand('merge', $this->lng->txt('merge_posts_into_thread'));
                        }
                }
                $this->setShowRowsSelector(true);
                $this->setRowSelectorLabel($this->lng->txt('number_of_threads'));
        }       
        
        public function initMergeThreadsTable()
        {
                // Columns
                $this->addColumn('', 'check', '1px', true);
                $this->addColumn($this->lng->txt('forums_thread'), 'th_title');
                $this->addColumn($this->lng->txt('forums_created_by'), 'author');
                $this->addColumn($this->lng->txt('forums_articles'), 'num_posts');
                $this->addColumn($this->lng->txt('visits'), 'num_visit');
                $this->addColumn($this->lng->txt('forums_last_post'), 'lp_date');
        
                // Disable sorting
                $this->disable('sort');

                // Default Form Action
                $this->setFormAction($this->ctrl->getFormAction($this->getParentObject(), 'confirmMergeThreads'));

                // Row template
                $this->setRowTemplate('tpl.forums_threads_table.html', 'Modules/Forum');

                ilUtil::sendInfo($this->lng->txt('please_choose_target'));
                
                $this->setTitle(sprintf($this->lng->txt('frm_selected_merge_src'), $this->getSelectedThread()->getSubject()));
                
                $this->addCommandButton('confirmMergeThreads',$this->lng->txt('merge'));
                $this->addCommandButton('showThreads', $this->lng->txt('cancel'));
                $this->setShowRowsSelector(true);
                $this->setRowSelectorLabel($this->lng->txt('number_of_threads'));
        }

        public function fillRow(ilForumTopic $thread)
        {
                global $ilUser;

                $this->ctrl->setParameter($this->getParentObject(), 'thr_pk', $thread->getId());
                if('mergeThreads' == $this->parent_cmd)
                {
                        $checked = $this->max_count == 1 || (isset($_POST['thread_ids']) && in_array($thread->getId(), $_POST['thread_ids']));
                        $this->tpl->setVariable('VAL_CHECK', ilUtil::formRadioButton(
                                $checked, 'thread_ids[]', $thread->getId()
                        ));
                }
                else if('showThreads' == $this->parent_cmd)
                {
                        $this->tpl->setVariable('VAL_CHECK', ilUtil::formCheckbox(
                                (isset($_POST['thread_ids']) && in_array($thread->getId(), $_POST['thread_ids']) ? true : false), 'thread_ids[]', $thread->getId()
                        ));
                }
                else
                {
                        if($thread->isSticky())
                        {
                                $this->tpl->setVariable('VAL_SORTING_NAME','thread_sorting['.$thread->getId().']' );
                                $this->tpl->setVariable('VAL_SORTING', (int)$this->position * 10 );
                        }
                        else
                        {
                                $this->tpl->setVariable('VAL_CHECK', '');
                        }
                        $this->position++;
                }
                $subject = '';

                if($thread->isSticky())
                {
                        $subject .= '<span class="light">[' . $this->lng->txt('sticky') . ']</span> ';
                }
                if($thread->isClosed())
                {
                        $subject .= '<span class="light">[' . $this->lng->txt('topic_close') . ']</span> ';
                }

                if(!$ilUser->isAnonymous() &&
                        $this->ilias->getSetting('forum_notification') != 0 &&
                        $thread->getUserNotificationEnabled()
                )
                {
                        $subject .= '<span class="light">[' . $this->lng->txt('forums_notification_enabled') . ']</span> ';
                }

                $num_posts  = $thread->getNumPosts();
                $num_unread = $thread->getNumUnreadPosts();
                $num_new    = $thread->getNumNewPosts();

                if($num_posts > 0)
                {
                        $subject = '<div><a href="' . $this->ctrl->getLinkTarget($this->getParentObject(), 'viewThread') . '">' . $thread->getSubject() . '</a></div>' . $subject;
                }
                else
                {
                        $subject = $thread->getSubject() . $subject;
                }
                $this->tpl->setVariable('VAL_SUBJECT', $subject);

                // Author
                $this->ctrl->setParameter($this->getParentObject(), 'backurl', urlencode($this->ctrl->getLinkTargetByClass("ilrepositorygui", "")));
                $this->ctrl->setParameter($this->getParentObject(), 'user', $thread->getUserId());

                $authorinfo = new ilForumAuthorInformation(
                        $thread->getUserId(),
                        $thread->getUserAlias(),
                        $thread->getImportName(),
                        array(
                                 'class' => 'il_ItemProperty',
                                 'href'  => $this->ctrl->getLinkTarget($this->getParentObject(), 'showUser')
                        )
                );
                $this->tpl->setVariable('VAL_AUTHOR', $authorinfo->getLinkedAuthorName());

                $topicStats = $num_posts;
                if(!$ilUser->isAnonymous())
                {
                        if($num_unread > 0)
                        {
                                $topicStats .= '<br /><span class="alert ilWhiteSpaceNowrap">' . $this->lng->txt('unread') . ': ' . $num_unread . '</span>';
                        }
                        if($num_new > 0 && $this->getOverviewSetting() == 0)
                        {
                                $topicStats .= '<br /><span class="alert ilWhiteSpaceNowrap">' . $this->lng->txt('new') . ': ' . $num_new . '</span>';
                        }
                }

                $this->tpl->setVariable('VAL_ARTICLE_STATS', $topicStats);
                $this->tpl->setVariable('VAL_NUM_VISIT', $thread->getVisits());

                // Last posting
                if($num_posts > 0)
                {
                        if($this->getIsModerator())
                        {
                                $objLastPost = $thread->getLastPost();
                        }
                        else
                        {
                                $objLastPost = $thread->getLastActivePost();
                        }

                        if(is_object($objLastPost))
                        {
                                $authorinfo = new ilForumAuthorInformation(
                                        $objLastPost->getUserId(),
                                        $objLastPost->getUserAlias(),
                                        $objLastPost->getImportName(),
                                        array(
                                                 'href' => $this->ctrl->getLinkTarget($this->getParentObject(), 'viewThread') . '#' . $objLastPost->getId()
                                        )
                                );

                                $this->tpl->setVariable('VAL_LP_DATE', '<div class="ilWhiteSpaceNowrap">' . ilDatePresentation::formatDate(new ilDateTime($objLastPost->getCreateDate(), IL_CAL_DATETIME)) . '</div>' .
                                        '<div class="ilWhiteSpaceNowrap">' . $this->lng->txt('from') . ' ' . $authorinfo->getLinkedAuthorName() . '</div>'
                                );
                        }
                }

                // Row style
                $css_row = $this->css_row;
                if($thread->isSticky())
                {
                        $css_row = $css_row == 'tblrow1' ? 'tblstickyrow1' : 'tblstickyrow2';
                }
                $this->tpl->setVariable('CSS_ROW', $css_row);

                $this->ctrl->setParameter($this->getParentObject(), 'thr_pk', '');
                $this->ctrl->setParameter($this->getParentObject(), 'user', '');
                $this->ctrl->setParameter($this->getParentObject(), 'backurl', '');
        }

        protected function formatCellValue($cell, $value)
        {
                return $value;
        }

        public function numericOrdering($column)
        {
                return false;
        }

        public function fetchData()
        {
                $this->determineOffsetAndOrder();
                
                $excluded_ids = array();
                if($this->parent_cmd == 'mergeThreads' &&
                   $this->getSelectedThread() instanceof ilForumTopic)
                {
                        $excluded_ids[] = $this->getSelectedThread()->getId();  
                }

                $params = array(
                        'is_moderator' => $this->getIsModerator(),
                        'excluded_ids' => $excluded_ids
                );

                $data = $this->getMapper()->getAllThreads($this->topicData['top_pk'], $params, (int)$this->getLimit(), (int)$this->getOffset());
                if(!count($data['items']) && $this->getOffset() > 0)
                {
                        $this->resetOffset();
                        $data = $this->getMapper()->getAllThreads($this->topicData['top_pk'], $params, (int)$this->getLimit(), (int)$this->getOffset());
                }

                $this->setMaxCount($data['cnt']);
                $this->setData($data['items']);

                // Collect user ids for preloading user objects
                $thread_ids = array();
                $user_ids   = array();
                foreach($data['items'] as $thread)
                {
                        $thread_ids[] = (int)$thread->getId();
                        if($thread->getUserId() > 0)
                        {
                                $user_ids[$thread->getUserId()] = (int)$thread->getUserId();
                        }
                }

                $user_ids = array_merge(
                        ilObjForum::getUserIdsOfLastPostsByRefIdAndThreadIds($this->getRefId(), $thread_ids),
                        $user_ids
                );

                ilForumAuthorInformationCache::preloadUserObjects(array_unique($user_ids));

                return $this;
        }

        public function setMapper(ilForum $mapper)
        {
                $this->mapper = $mapper;
                return $this;
        }

        public function getMapper()
        {
                return $this->mapper;
        }

        public function setRefId($ref_id)
        {
                $this->ref_id = $ref_id;
                return $this;
        }

        public function getRefId()
        {
                return $this->ref_id;
        }

        public function setOverviewSetting($overview_setting)
        {
                $this->overview_setting = $overview_setting;
                return $this;
        }

        public function getOverviewSetting()
        {
                return $this->overview_setting;
        }

        public function setIsModerator($is_moderator)
        {
                $this->is_moderator = $is_moderator;
                return $this;
        }

        public function getIsModerator()
        {
                return $this->is_moderator;
        }

        public function setTopicData($topicData)
        {
                $this->topicData = $topicData;
                return $this;
        }

        public function getTopicData()
        {
                return $this->topicData;
        }

        public function setSelectedThread(ilForumTopic $thread_obj)
        {
                $this->merge_thread_obj = $thread_obj;
        }

        public function getSelectedThread()
        {
                return $this->merge_thread_obj;
        }
}