blog/header.php

   1 <?php //$Id$
   2
   3 defined('MOODLE_INTERNAL') || die();
   4
   5 /// Sets up blocks and navigation for index.php
   6
   7 require_once($CFG->dirroot .'/blog/lib.php');
   8 require_once($CFG->libdir .'/pagelib.php');
   9 require_once($CFG->dirroot .'/blog/blogpage.php');
  10 require_once($CFG->libdir .'/blocklib.php');
  11 require_once($CFG->dirroot .'/course/lib.php');
  12
  13 $blockaction = optional_param('blockaction','', PARAM_ALPHA);
  14 $instanceid  = optional_param('instanceid', 0, PARAM_INT);
  15 $blockid     = optional_param('blockid',    0, PARAM_INT);
  16
  17 /// If user has never visited this page before, install 2 blocks for him
  18 blog_check_and_install_blocks();
  19
  20
  21 if (!$course = get_record('course', 'id', $courseid)) {
  22     error('The course number was incorrect ('. $courseid .')');
  23 }
  24
  25 // Bounds for block widths
  26 // more flexible for theme designers taken from theme config.php
  27 $lmin = (empty($THEME->block_l_min_width)) ? 160 : $THEME->block_l_min_width;
  28 $lmax = (empty($THEME->block_l_max_width)) ? 210 : $THEME->block_l_max_width;
  29 $rmin = (empty($THEME->block_r_min_width)) ? 160 : $THEME->block_r_min_width;
  30 $rmax = (empty($THEME->block_r_max_width)) ? 210 : $THEME->block_r_max_width;
  31
  32 define('BLOCK_L_MIN_WIDTH', $lmin);
  33 define('BLOCK_L_MAX_WIDTH', $lmax);
  34 define('BLOCK_R_MIN_WIDTH', $rmin);
  35 define('BLOCK_R_MAX_WIDTH', $rmax);
  36
  37 //_____________ new page class code ________
  38 $pagetype = PAGE_BLOG_VIEW;
  39 $pageclass = 'page_blog';
  40
  41 // map our page identifier to the actual name
  42 // of the class which will be handling its operations.
  43 page_map_class($pagetype, $pageclass);
  44
  45 // Now, create our page object.
  46 if (empty($USER->id)) {
  47     $PAGE = page_create_object($pagetype);
  48 } else {
  49     $PAGE = page_create_object($pagetype, $USER->id);
  50 }
  51 $PAGE->courseid     = $courseid;
  52 $PAGE->filtertype   = $filtertype;
  53 $PAGE->filterselect = $filterselect;
  54 $PAGE->tagid        = $tagid;
  55
  56 $PAGE->init_full(); //init the BlogInfo object and the courserecord object
  57
  58 $editing = false;
  59 if ($PAGE->user_allowed_editing()) {
  60     $editing = $PAGE->user_is_editing();
  61 }
  62
  63 // Calculate the preferred width for left, right and center (both center positions will use the same)
  64 $preferred_width_left  = bounded_number(BLOCK_L_MIN_WIDTH, blocks_preferred_width($pageblocks[BLOCK_POS_LEFT]),
  65                                         BLOCK_L_MAX_WIDTH);
  66 $preferred_width_right = bounded_number(BLOCK_R_MIN_WIDTH, blocks_preferred_width($pageblocks[BLOCK_POS_RIGHT]),
  67                                         BLOCK_R_MAX_WIDTH);
  68
  69 // Display the blocks and allow blocklib to handle any block action requested
  70 $pageblocks = blocks_get_by_page($PAGE);
  71
  72 if ($editing) {
  73     if (!empty($blockaction) && confirm_sesskey()) {
  74         if (!empty($blockid)) {
  75             blocks_execute_action($PAGE, $pageblocks, strtolower($blockaction), intval($blockid));
  76         } else if (!empty($instanceid)) {
  77             $instance = blocks_find_instance($instanceid, $pageblocks);
  78             blocks_execute_action($PAGE, $pageblocks, strtolower($blockaction), $instance);
  79         }
  80         // This re-query could be eliminated by judicious programming in blocks_execute_action(),
  81         // but I'm not sure if it's worth the complexity increase...
  82         $pageblocks = blocks_get_by_page($PAGE);
  83     }
  84     $missingblocks = blocks_get_missing($PAGE, $pageblocks);
  85 }
  86
  87 if (!empty($tagid)) {
  88     $taginstance = get_record('tag', 'id', $tagid);
  89 } elseif (!empty($tag)) {
  90     $taginstance = tag_id($tag);
  91 }
  92
  93 /// navigations
  94 /// site blogs - sitefullname -> blogs -> (?tag)
  95 /// course blogs - sitefullname -> course fullname ->blogs ->(?tag)
  96 /// group blogs - sitefullname -> course fullname ->group ->(?tag)
  97 /// user blogs - sitefullname -> (?coursefullname) -> participants -> blogs -> (?tag)
  98
  99 $blogstring = get_string('blogs','blog');
 100 $tagstring = get_string('tag');
 101
 102 // needed also for user tabs later
 103 if (!$course = get_record('course', 'id', $courseid)) {
 104     error('Wrong course id');
 105 }
 106
 107 $navlinks = array();
 108
 109 /// This is very messy atm.
 110
 111     switch ($filtertype) {
 112         case 'site':
 113             if ($tagid || !empty($tag)) {
 114                 $navlinks[] = array('name' => $blogstring, 'link' => "index.php?filtertype=site", 'type' => 'misc');
 115                 $navlinks[] = array('name' => "$tagstring: $taginstance->name", 'link' => null, 'type' => 'misc');
 116                 $navigation = build_navigation($navlinks);
 117                 print_header("$SITE->shortname: $blogstring", $SITE->fullname, $navigation,'','',true,$PAGE->get_extra_header_string());
 118             } else {
 119                 $navlinks[] = array('name' => $blogstring, 'link' => null, 'type' => 'misc');
 120                 $navigation = build_navigation($navlinks);
 121                 print_header("$SITE->shortname: $blogstring", $SITE->fullname, $navigation,'','',true,$PAGE->get_extra_header_string());
 122             }
 123         break;
 124
 125         case 'course':
 126             if ($tagid || !empty($tag)) {
 127                 $navlinks[] = array('name' => $blogstring,
 128                                     'link' => "index.php?filtertype=course&amp;filterselect=$filterselect",
 129                                     'type' => 'misc');
 130                 $navlinks[] = array('name' => "$tagstring: $taginstance->name", 'link' => null, 'type' => 'misc');
 131                 $navigation = build_navigation($navlinks);
 132                 print_header("$course->shortname: $blogstring", $course->fullname, $navigation,'','',true,$PAGE->get_extra_header_string());
 133             } else {
 134                 $navlinks[] = array('name' => $blogstring, 'link' => null, 'type' => 'misc');
 135                 $navigation = build_navigation($navlinks);
 136                 print_header("$course->shortname: $blogstring", $course->fullname, $navigation,'','',true,$PAGE->get_extra_header_string());
 137             }
 138         break;
 139
 140         case 'group':
 141
 142             if ($thisgroup = groups_get_group($filterselect, false)) { //TODO:
 143                 if ($tagid || !empty($tag)) {
 144                     $navlinks[] = array('name' => $thisgroup->name,
 145                                         'link' => "$CFG->wwwroot/user/index.php?id=$course->id&amp;group=$filterselect",
 146                                         'type' => 'misc');
 147                     $navlinks[] = array('name' => $blogstring,
 148                                         'link' => "index.php?filtertype=group&amp;filterselect=$filterselect",
 149                                         'type' => 'misc');
 150                     $navlinks[] = array('name' => "$tagstring: $taginstance->name", 'link' => null, 'type' => 'misc');
 151                     $navigation = build_navigation($navlinks);
 152                     print_header("$course->shortname: $blogstring", $course->fullname, $navigation,'','',true,$PAGE->get_extra_header_string());
 153                 } else {
 154                     $navlinks[] = array('name' => $thisgroup->name,
 155                                         'link' => "$CFG->wwwroot/user/index.php?id=$course->id&amp;group=$filterselect",
 156                                         'type' => 'misc');
 157                     $navlinks[] = array('name' => $blogstring, 'link' => null, 'type' => 'misc');
 158                     $navigation = build_navigation($navlinks);
 159                     print_header("$course->shortname: $blogstring", $course->fullname, $navigation,'','',true,$PAGE->get_extra_header_string());
 160                 }
 161             } else {
 162                 print_error('Unable to find group');
 163             }
 164
 165         break;
 166
 167         case 'user':
 168             $participants = get_string('participants');
 169             if (!$user = get_record('user', 'id', $filterselect)) {
 170                error('Wrong user id');
 171             }
 172
 173             if ($course->id != SITEID) {
 174                 $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);   // Course context
 175                 $systemcontext = get_context_instance(CONTEXT_SYSTEM);   // SYSTEM context
 176
 177                 if (has_capability('moodle/course:viewparticipants', $coursecontext) || has_capability('moodle/site:viewparticipants', $systemcontext)) {
 178                     $navlinks[] = array('name' => $participants,
 179                                         'link' => "$CFG->wwwroot/user/index.php?id=$course->id",
 180                                         'type' => 'misc');
 181                 }
 182                 $navlinks[] = array('name' => fullname($user),
 183                                     'link' => "$CFG->wwwroot/user/view.php?id=$filterselect&amp;course=$course->id",
 184                                     'type' => 'misc');
 185
 186                 if ($tagid || !empty($tag)) {
 187                     $navlinks[] = array('name' => $blogstring,
 188                                         'link' => "index.php?courseid=$course->id&amp;filtertype=user&amp;filterselect=$filterselect",
 189                                         'type' => 'misc');
 190                     $navlinks[] = array('name' => "$tagstring: $taginstance->name", 'link' => null, 'type' => 'misc');
 191                     $navigation = build_navigation($navlinks);
 192
 193                 } else {
 194                     $navlinks[] = array('name' => $blogstring, 'link' => null, 'type' => 'misc');
 195                     $navigation = build_navigation($navlinks);
 196                 }
 197                 print_header("$course->shortname: $blogstring", $course->fullname, $navigation,'','',true,$PAGE->get_extra_header_string());
 198
 199             } else {
 200
 201             //in top view
 202
 203                 if ($postid) {
 204                     $navlinks[] = array('name' => fullname($user),
 205                                         'link' => "$CFG->wwwroot/user/view.php?id=$filterselect",
 206                                         'type' => 'misc');
 207                     $navlinks[] = array('name' => $blogstring,
 208                                         'link' => "index.php?filtertype=user&amp;filterselect=$filterselect",
 209                                         'type' => 'misc');
 210                     $navlinks[] = array('name' => format_string($postobject->subject), 'link' => null, 'type' => 'misc');
 211                     $navigation = build_navigation($navlinks);
 212
 213                 } else if ($tagid || !empty($tag)) {
 214                     $navlinks[] = array('name' => fullname($user),
 215                                         'link' => "$CFG->wwwroot/user/view.php?id=$filterselect",
 216                                         'type' => 'misc');
 217                     $navlinks[] = array('name' => $blogstring,
 218                                         'link' => "index.php?filtertype=user&amp;filterselect=$filterselect",
 219                                         'type' => 'misc');
 220                     $navlinks[] = array('name' => "$tagstring: $taginstance->name", 'link' => null, 'type' => 'misc');
 221                     $navigation = build_navigation($navlinks);
 222
 223                 } else {
 224                     $navlinks[] = array('name' => fullname($user),
 225                                         'link' => "$CFG->wwwroot/user/view.php?id=$filterselect",
 226                                         'type' => 'misc');
 227                     $navlinks[] = array('name' => $blogstring, 'link' => null, 'type' => 'misc');
 228                     $navigation = build_navigation($navlinks);
 229                 }
 230                 print_header("$SITE->shortname: $blogstring", $SITE->fullname, $navigation,'','',true,$PAGE->get_extra_header_string());
 231
 232             }
 233         break;
 234
 235         default:
 236             error ('Error unknown filtertype');
 237         break;
 238     }
 239
 240
 241 // prints the tabs
 242 if ($filtertype=='user') {
 243     $showroles = true;
 244 } else {
 245     $showroles = false;
 246 }
 247 $currenttab = 'blogs';
 248
 249 require_once($CFG->dirroot .'/user/tabs.php');
 250
 251
 252 /// Layout the whole page as three big columns.
 253 print '<table border="0" cellpadding="3" cellspacing="0" width="100%" id="layout-table">' . "\n";
 254 print '<tr valign="top">' . "\n";
 255
 256 /// The left column ...
 257 if (blocks_have_content($pageblocks, BLOCK_POS_LEFT) || $editing) {
 258     print '<td style="vertical-align: top; width: '. $preferred_width_left .'px;" id="left-column">' . "\n";
 259     print '<!-- Begin left side blocks -->' . "\n";
 260     print_container_start();
 261     blocks_print_group($PAGE, $pageblocks, BLOCK_POS_LEFT);
 262     print_container_end();
 263     print '<!-- End left side blocks -->' . "\n";
 264     print '</td>' . "\n";
 265 }
 266
 267 /// Start main column
 268 print '<!-- Begin page content -->' . "\n";
 269 print '<td>';
 270 print_container_start();
 271 ?>
 272 <table width="100%">
 273 <tr>
 274 <td valign="top">