blocks/blog_recent/block_blog_recent.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 /**
  18  * Recent Blog Entries Block page.
  19  *
  20  * @package   block_blog_recent
  21  * @copyright 2009 Nicolas Connault
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 defined('MOODLE_INTERNAL') || die();
  26
  27 /**
  28  * This block simply outputs a list of links to recent blog entries, depending on
  29  * the context of the current page.
  30  */
  31 class block_blog_recent extends block_base {
  32
  33     function init() {
  34         $this->title = get_string('pluginname', 'block_blog_recent');
  35         $this->content_type = BLOCK_TYPE_TEXT;
  36     }
  37
  38     function applicable_formats() {
  39         return array('all' => true, 'my' => false, 'tag' => false);
  40     }
  41
  42     function instance_allow_config() {
  43         return true;
  44     }
  45
  46     function get_content() {
  47         global $CFG;
  48
  49         if ($this->content !== NULL) {
  50             return $this->content;
  51         }
  52
  53         // verify blog is enabled
  54         if (empty($CFG->enableblogs)) {
  55             $this->content = new stdClass();
  56             $this->content->text = '';
  57             if ($this->page->user_is_editing()) {
  58                 $this->content->text = get_string('blogdisable', 'blog');
  59             }
  60             return $this->content;
  61
  62         } else if ($CFG->bloglevel < BLOG_GLOBAL_LEVEL and (!isloggedin() or isguestuser())) {
  63             $this->content = new stdClass();
  64             $this->content->text = '';
  65             return $this->content;
  66         }
  67
  68         require_once($CFG->dirroot .'/blog/lib.php');
  69         require_once($CFG->dirroot .'/blog/locallib.php');
  70
  71         if (empty($this->config)) {
  72             $this->config = new stdClass();
  73         }
  74
  75         if (empty($this->config->recentbloginterval)) {
  76             $this->config->recentbloginterval = 8400;
  77         }
  78
  79         if (empty($this->config->numberofrecentblogentries)) {
  80             $this->config->numberofrecentblogentries = 4;
  81         }
  82
  83         $this->content = new stdClass();
  84         $this->content->footer = '';
  85         $this->content->text = '';
  86
  87         $context = $this->page->context;
  88
  89         $url = new moodle_url('/blog/index.php');
  90         $filter = array();
  91         if ($context->contextlevel == CONTEXT_MODULE) {
  92             $filter['module'] = $context->instanceid;
  93             $a = new stdClass;
  94             $a->type = get_string('modulename', $this->page->cm->modname);
  95             $strview = get_string('viewallmodentries', 'blog', $a);
  96             $url->param('modid', $context->instanceid);
  97         } else if ($context->contextlevel == CONTEXT_COURSE) {
  98             $filter['course'] = $context->instanceid;
  99             $a = new stdClass;
 100             $a->type = get_string('course');
 101             $strview = get_string('viewblogentries', 'blog', $a);
 102             $url->param('courseid', $context->instanceid);
 103         } else {
 104             $strview = get_string('viewsiteentries', 'blog');
 105         }
 106         $filter['since'] = $this->config->recentbloginterval;
 107
 108         $bloglisting = new blog_listing($filter);
 109         $entries = $bloglisting->get_entries(0, $this->config->numberofrecentblogentries, 4);
 110
 111         if (!empty($entries)) {
 112             $entrieslist = array();
 113             $viewblogurl = new moodle_url('/blog/index.php');
 114
 115             foreach ($entries as $entryid => $entry) {
 116                 $viewblogurl->param('entryid', $entryid);
 117                 $entrylink = html_writer::link($viewblogurl, shorten_text($entry->subject));
 118                 $entrieslist[] = $entrylink;
 119             }
 120
 121             $this->content->text .= html_writer::alist($entrieslist, array('class'=>'list'));
 122             $viewallentrieslink = html_writer::link($url, $strview);
 123             $this->content->text .= $viewallentrieslink;
 124         } else {
 125             $this->content->text .= get_string('norecentblogentries', 'block_blog_recent');
 126         }
 127     }
 128 }