blog/header.php

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