mod/chat/report.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 // This page prints reports and info about chats.
  18
  19 require_once('../../config.php');
  20 require_once('lib.php');
  21
  22 $id            = required_param('id', PARAM_INT);
  23 $start         = optional_param('start', 0, PARAM_INT);   // Start of period.
  24 $end           = optional_param('end', 0, PARAM_INT);     // End of period.
  25 $deletesession = optional_param('deletesession', 0, PARAM_BOOL);
  26 $confirmdelete = optional_param('confirmdelete', 0, PARAM_BOOL);
  27 $showall      = optional_param('show_all', 0, PARAM_BOOL);
  28
  29 $url = new moodle_url('/mod/chat/report.php', array('id' => $id));
  30 if ($start !== 0) {
  31     $url->param('start', $start);
  32 }
  33 if ($end !== 0) {
  34     $url->param('end', $end);
  35 }
  36 if ($deletesession !== 0) {
  37     $url->param('deletesession', $deletesession);
  38 }
  39 if ($confirmdelete !== 0) {
  40     $url->param('confirmdelete', $confirmdelete);
  41 }
  42 $PAGE->set_url($url);
  43
  44 if (! $cm = get_coursemodule_from_id('chat', $id)) {
  45     print_error('invalidcoursemodule');
  46 }
  47 if (! $chat = $DB->get_record('chat', array('id' => $cm->instance))) {
  48     print_error('invalidcoursemodule');
  49 }
  50 if (! $course = $DB->get_record('course', array('id' => $chat->course))) {
  51     print_error('coursemisconf');
  52 }
  53
  54 $context = context_module::instance($cm->id);
  55 $PAGE->set_context($context);
  56 $PAGE->set_heading($course->fullname);
  57
  58 require_login($course, false, $cm);
  59
  60 if (empty($chat->studentlogs) && !has_capability('mod/chat:readlog', $context)) {
  61     notice(get_string('nopermissiontoseethechatlog', 'chat'));
  62 }
  63
  64 $params = array(
  65     'context' => $context,
  66     'objectid' => $chat->id,
  67     'other' => array(
  68         'start' => $start,
  69         'end' => $end
  70     )
  71 );
  72 $event = \mod_chat\event\sessions_viewed::create($params);
  73 $event->add_record_snapshot('chat', $chat);
  74 $event->trigger();
  75
  76 $strchats         = get_string('modulenameplural', 'chat');
  77 $strchat          = get_string('modulename', 'chat');
  78 $strchatreport    = get_string('chatreport', 'chat');
  79 $strseesession    = get_string('seesession', 'chat');
  80 $strdeletesession = get_string('deletesession', 'chat');
  81
  82 $navlinks = array();
  83
  84 $canexportsess = has_capability('mod/chat:exportsession', $context);
  85 $canviewfullnames = has_capability('moodle/site:viewfullnames', $context);
  86
  87 // Print a session if one has been specified.
  88
  89 if ($start and $end and !$confirmdelete) {   // Show a full transcript.
  90     $PAGE->navbar->add($strchatreport);
  91     $PAGE->set_title(format_string($chat->name).": $strchatreport");
  92     echo $OUTPUT->header();
  93     echo $OUTPUT->heading(format_string($chat->name), 2);
  94
  95     // Check to see if groups are being used here.
  96     $groupmode = groups_get_activity_groupmode($cm);
  97     $currentgroup = groups_get_activity_group($cm, true);
  98     groups_print_activity_menu($cm, $CFG->wwwroot . "/mod/chat/report.php?id=$cm->id");
  99
 100     if ($deletesession and has_capability('mod/chat:deletelog', $context)) {
 101         echo $OUTPUT->confirm(get_string('deletesessionsure', 'chat'),
 102                      "report.php?id=$cm->id&deletesession=1&confirmdelete=1&start=$start&end=$end",
 103                      "report.php?id=$cm->id");
 104     }
 105
 106     if (!$messages = chat_get_session_messages($chat->id, $currentgroup, $start, $end, 'timestamp ASC')) {
 107         echo $OUTPUT->heading(get_string('nomessages', 'chat'));
 108     } else {
 109         echo '<p class="boxaligncenter">'.userdate($start).' --> '. userdate($end).'</p>';
 110
 111         echo $OUTPUT->box_start('center');
 112         $participates = array();
 113         foreach ($messages as $message) {  // We are walking FORWARDS through messages.
 114             if (!isset($participates[$message->userid])) {
 115                 $participates[$message->userid] = true;
 116             }
 117             $formatmessage = chat_format_message($message, $course->id, $USER);
 118             if (isset($formatmessage->html)) {
 119                 echo $formatmessage->html;
 120             }
 121         }
 122         $participatedcap = array_key_exists($USER->id, $participates)
 123                            && has_capability('mod/chat:exportparticipatedsession', $context);
 124
 125         if (!empty($CFG->enableportfolios) && ($canexportsess || $participatedcap)) {
 126             require_once($CFG->libdir . '/portfoliolib.php');
 127             $buttonoptions  = array(
 128                 'id'    => $cm->id,
 129                 'start' => $start,
 130                 'end'   => $end,
 131             );
 132             $button = new portfolio_add_button();
 133             $button->set_callback_options('chat_portfolio_caller', $buttonoptions, 'mod_chat');
 134             $button->render();
 135         }
 136         echo $OUTPUT->box_end();
 137     }
 138
 139     if (!$deletesession or !has_capability('mod/chat:deletelog', $context)) {
 140         echo $OUTPUT->continue_button("report.php?id=$cm->id");
 141     }
 142
 143     echo $OUTPUT->footer();
 144     exit;
 145 }
 146
 147
 148 // Print the Sessions display.
 149 $PAGE->navbar->add($strchatreport);
 150 $PAGE->set_title(format_string($chat->name).": $strchatreport");
 151 echo $OUTPUT->header();
 152
 153 echo $OUTPUT->heading(format_string($chat->name).': '.get_string('sessions', 'chat'), 2);
 154
 155 // Check to see if groups are being used here
 156 if ($groupmode = groups_get_activity_groupmode($cm)) {   // Groups are being used.
 157     $currentgroup = groups_get_activity_group($cm, true);
 158     groups_print_activity_menu($cm, $CFG->wwwroot . "/mod/chat/report.php?id=$cm->id");
 159 } else {
 160     $currentgroup = false;
 161 }
 162
 163 $params = array('currentgroup' => $currentgroup, 'chatid' => $chat->id, 'start' => $start, 'end' => $end);
 164
 165 // If the user is allocated to a group, only show discussions with people in
 166 // the same group, or no group.
 167 if (!empty($currentgroup)) {
 168     $groupselect = " AND (groupid = :currentgroup OR groupid = 0)";
 169 } else {
 170     $groupselect = "";
 171 }
 172
 173 // Delete a session if one has been specified.
 174
 175 if ($deletesession and has_capability('mod/chat:deletelog', $context)
 176     and $confirmdelete and $start and $end and confirm_sesskey()) {
 177
 178     $DB->delete_records_select('chat_messages', "chatid = :chatid AND timestamp >= :start AND
 179                                                  timestamp <= :end $groupselect", $params);
 180     $strdeleted  = get_string('deleted');
 181     echo $OUTPUT->notification("$strdeleted: ".userdate($start).' --> '. userdate($end));
 182     unset($deletesession);
 183 }
 184
 185 // Get the messages.
 186 if (empty($messages)) {   // May have already got them above.
 187     if (!$messages = chat_get_session_messages($chat->id, $currentgroup, 0, 0, 'timestamp DESC')) {
 188         echo $OUTPUT->heading(get_string('nomessages', 'chat'), 3);
 189         echo $OUTPUT->footer();
 190         exit;
 191     }
 192 }
 193
 194 if ($showall) {
 195     $headingstr = get_string('listing_all_sessions', 'chat') . '&nbsp;';
 196     $headingstr .= html_writer::link("report.php?id={$cm->id}&show_all=0", get_string('list_complete_sessions', 'chat'));
 197     echo  $OUTPUT->heading($headingstr, 3);
 198 }
 199
 200 // Show all the sessions.
 201 $completesessions  = 0;
 202
 203 echo '<div class="list-group">';
 204
 205 $sessions = chat_get_sessions($messages, $showall);
 206
 207 foreach ($sessions as $session) {
 208     echo '<div class="list-group-item">';
 209     echo '<p>'.userdate($session->sessionstart).' --> '. userdate($session->sessionend).'</p>';
 210
 211     echo $OUTPUT->box_start();
 212
 213     arsort($session->sessionusers);
 214     foreach ($session->sessionusers as $sessionuser => $usermessagecount) {
 215         if ($user = $DB->get_record('user', array('id' => $sessionuser))) {
 216             $OUTPUT->user_picture($user, array('courseid' => $course->id));
 217             echo '&nbsp;' . fullname($user, $canviewfullnames);
 218             echo "&nbsp;($usermessagecount)<br />";
 219         }
 220     }
 221
 222     echo '<p align="right">';
 223     echo "<a href=\"report.php?id=$cm->id&amp;start=$session->sessionstart&amp;end=$session->sessionend\">$strseesession</a>";
 224     $participatedcap = (array_key_exists($USER->id, $session->sessionusers)
 225                        && has_capability('mod/chat:exportparticipatedsession', $context));
 226     if (!empty($CFG->enableportfolios) && ($canexportsess || $participatedcap)) {
 227         require_once($CFG->libdir . '/portfoliolib.php');
 228         $buttonoptions  = array(
 229             'id'    => $cm->id,
 230             'start' => $session->sessionstart,
 231             'end'   => $session->sessionend,
 232         );
 233         $button = new portfolio_add_button();
 234         $button->set_callback_options('chat_portfolio_caller', $buttonoptions, 'mod_chat');
 235         $portfoliobutton = $button->to_html(PORTFOLIO_ADD_TEXT_LINK);
 236         if (!empty($portfoliobutton)) {
 237             echo '<br />' . $portfoliobutton;
 238         }
 239     }
 240     if (has_capability('mod/chat:deletelog', $context)) {
 241         $deleteurl = "report.php?id=$cm->id&amp;start=$session->sessionstart&amp;end=$session->sessionend&amp;deletesession=1";
 242         echo "<br /><a href=\"$deleteurl\">$strdeletesession</a>";
 243     }
 244     echo '</p>';
 245     echo $OUTPUT->box_end();
 246     echo '</div>';
 247
 248     if ($session->iscomplete) {
 249         $completesessions++;
 250     }
 251 }
 252
 253 echo '</div>';
 254
 255 if (!empty($CFG->enableportfolios) && $canexportsess) {
 256     require_once($CFG->libdir . '/portfoliolib.php');
 257     $button = new portfolio_add_button();
 258     $button->set_callback_options('chat_portfolio_caller', array('id' => $cm->id), 'mod_chat');
 259     $button->render(null, get_string('addalltoportfolio', 'portfolio'));
 260 }
 261
 262
 263 if (!$showall and $completesessions == 0) {
 264     echo html_writer::start_tag('p');
 265     echo get_string('no_complete_sessions_found', 'chat') . '&nbsp;';
 266     echo html_writer::link('report.php?id='.$cm->id.'&show_all=1', get_string('list_all_sessions', 'chat'));
 267     echo html_writer::end_tag('p');
 268 }
 269
 270 // Finish the page.
 271 echo $OUTPUT->footer();