blog/edit.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 /**
  19  * Blog entry edit page
  20  *
  21  * @package    moodlecore
  22  * @subpackage blog
  23  * @copyright  2009 Nicolas Connault
  24  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  */
  26 require_once(dirname(dirname(__FILE__)).'/config.php');
  27 require_once('lib.php');
  28 require_once('locallib.php');
  29
  30 $action   = required_param('action', PARAM_ALPHA);
  31 $id       = optional_param('entryid', 0, PARAM_INT);
  32 $confirm  = optional_param('confirm', 0, PARAM_BOOL);
  33 $modid = optional_param('modid', 0, PARAM_INT); // To associate the entry with a module instance.
  34 $courseid = optional_param('courseid', 0, PARAM_INT); // To associate the entry with a course.
  35
  36 if ($action == 'edit') {
  37     $id = required_param('entryid', PARAM_INT);
  38 }
  39
  40 $PAGE->set_url('/blog/edit.php', array('action' => $action,
  41                                        'entryid' => $id,
  42                                        'confirm' => $confirm,
  43                                        'modid' => $modid,
  44                                        'courseid' => $courseid));
  45
  46 // If action is add, we ignore $id to avoid any further problems.
  47 if (!empty($id) && $action == 'add') {
  48     $id = null;
  49 }
  50
  51 // Blogs are always in system context.
  52 $sitecontext = context_system::instance();
  53 $PAGE->set_context($sitecontext);
  54
  55 require_login($courseid);
  56
  57 if (empty($CFG->enableblogs)) {
  58     print_error('blogdisable', 'blog');
  59 }
  60
  61 if (isguestuser()) {
  62     print_error('noguestentry', 'blog');
  63 }
  64
  65 $returnurl = new moodle_url('/blog/index.php');
  66
  67 if (!empty($courseid) && empty($modid)) {
  68     $returnurl->param('courseid', $courseid);
  69 }
  70
  71 // If a modid is given, guess courseid.
  72 if (!empty($modid)) {
  73     $returnurl->param('modid', $modid);
  74     $courseid = $DB->get_field('course_modules', 'course', array('id' => $modid));
  75     $returnurl->param('courseid', $courseid);
  76 }
  77
  78 $blogheaders = blog_get_headers();
  79
  80 if (!has_capability('moodle/blog:create', $sitecontext) && !has_capability('moodle/blog:manageentries', $sitecontext)) {
  81     print_error('cannoteditentryorblog');
  82 }
  83
  84 // Make sure that the person trying to edit has access right.
  85 if ($id) {
  86     if (!$entry = new blog_entry($id)) {
  87         print_error('wrongentryid', 'blog');
  88     }
  89
  90     if (!blog_user_can_edit_entry($entry)) {
  91         print_error('notallowedtoedit', 'blog');
  92     }
  93     $userid = $entry->userid;
  94     $entry->subject      = clean_text($entry->subject);
  95     $entry->summary      = clean_text($entry->summary, $entry->format);
  96
  97 } else {
  98     if (!has_capability('moodle/blog:create', $sitecontext)) {
  99         print_error('noentry', 'blog'); // The capability "manageentries" is not enough for adding.
 100     }
 101     $entry  = new stdClass();
 102     $entry->id = null;
 103     $userid = $USER->id;
 104 }
 105 $returnurl->param('userid', $userid);
 106
 107 // Blog renderer.
 108 $output = $PAGE->get_renderer('blog');
 109
 110 $strblogs = get_string('blogs', 'blog');
 111
 112 if ($action === 'delete') {
 113     if (empty($entry->id)) {
 114         print_error('wrongentryid', 'blog');
 115     }
 116     if (data_submitted() && $confirm && confirm_sesskey()) {
 117         // Make sure the current user is the author of the blog entry, or has some deleteanyentry capability.
 118         if (!blog_user_can_edit_entry($entry)) {
 119             print_error('nopermissionstodeleteentry', 'blog');
 120         } else {
 121             $entry->delete();
 122             blog_rss_delete_file($userid);
 123             redirect($returnurl);
 124         }
 125     } else if (blog_user_can_edit_entry($entry)) {
 126         $optionsyes = array('entryid'=>$id, 'action'=>'delete', 'confirm'=>1, 'sesskey'=>sesskey(), 'courseid'=>$courseid);
 127         $optionsno = array('userid'=>$entry->userid, 'courseid'=>$courseid);
 128         $PAGE->set_title("$SITE->shortname: $strblogs");
 129         $PAGE->set_heading($SITE->fullname);
 130         echo $OUTPUT->header();
 131
 132         // Output the entry.
 133         $entry->prepare_render();
 134         echo $output->render($entry);
 135
 136         echo '<br />';
 137         echo $OUTPUT->confirm(get_string('blogdeleteconfirm', 'blog'),
 138                               new moodle_url('edit.php', $optionsyes),
 139                               new moodle_url('index.php', $optionsno));
 140         echo $OUTPUT->footer();
 141         die;
 142     }
 143 } else if ($action == 'add') {
 144     $PAGE->set_title("$SITE->shortname: $strblogs: " . get_string('addnewentry', 'blog'));
 145     $PAGE->set_heading($SITE->shortname);
 146 } else if ($action == 'edit') {
 147     $PAGE->set_title("$SITE->shortname: $strblogs: " . get_string('editentry', 'blog'));
 148     $PAGE->set_heading($SITE->shortname);
 149 }
 150
 151 if (!empty($entry->id)) {
 152     if ($CFG->useblogassociations && ($blogassociations = $DB->get_records('blog_association', array('blogid' => $entry->id)))) {
 153
 154         foreach ($blogassociations as $assocrec) {
 155             $context = context::instance_by_id($assocrec->contextid);
 156
 157             switch ($context->contextlevel) {
 158                 case CONTEXT_COURSE:
 159                     $entry->courseassoc = $assocrec->contextid;
 160                     break;
 161                 case CONTEXT_MODULE:
 162                     $entry->modassoc = $assocrec->contextid;
 163                     break;
 164             }
 165         }
 166     }
 167 }
 168
 169 require_once('edit_form.php');
 170 $summaryoptions = array('maxfiles'=> 99, 'maxbytes'=>$CFG->maxbytes, 'trusttext'=>true, 'context'=>$sitecontext,
 171     'subdirs'=>file_area_contains_subdirs($sitecontext, 'blog', 'post', $entry->id));
 172 $attachmentoptions = array('subdirs'=>false, 'maxfiles'=> 99, 'maxbytes'=>$CFG->maxbytes);
 173
 174 $blogeditform = new blog_edit_form(null, compact('entry',
 175                                                  'summaryoptions',
 176                                                  'attachmentoptions',
 177                                                  'sitecontext',
 178                                                  'courseid',
 179                                                  'modid'));
 180
 181 $entry = file_prepare_standard_editor($entry, 'summary', $summaryoptions, $sitecontext, 'blog', 'post', $entry->id);
 182 $entry = file_prepare_standard_filemanager($entry,
 183                                            'attachment',
 184                                            $attachmentoptions,
 185                                            $sitecontext,
 186                                            'blog',
 187                                            'attachment',
 188                                            $entry->id);
 189
 190 if (!empty($CFG->usetags) && !empty($entry->id)) {
 191     include_once($CFG->dirroot.'/tag/lib.php');
 192     $entry->tags = tag_get_tags_array('post', $entry->id);
 193 }
 194
 195 $entry->action = $action;
 196 // Set defaults.
 197 $blogeditform->set_data($entry);
 198
 199 if ($blogeditform->is_cancelled()) {
 200     redirect($returnurl);
 201
 202 } else if ($data = $blogeditform->get_data()) {
 203
 204     switch ($action) {
 205         case 'add':
 206             $blogentry = new blog_entry(null, $data, $blogeditform);
 207             $blogentry->add();
 208             $blogentry->edit($data, $blogeditform, $summaryoptions, $attachmentoptions);
 209         break;
 210
 211         case 'edit':
 212             if (empty($entry->id)) {
 213                 print_error('wrongentryid', 'blog');
 214             }
 215
 216             $entry->edit($data, $blogeditform, $summaryoptions, $attachmentoptions);
 217         break;
 218
 219         default :
 220             print_error('invalidaction');
 221     }
 222
 223     redirect($returnurl);
 224 }
 225
 226
 227 // GUI setup.
 228 switch ($action) {
 229     case 'add':
 230         // Prepare new empty form.
 231         $entry->publishstate = 'site';
 232         $strformheading = get_string('addnewentry', 'blog');
 233         $entry->action       = $action;
 234
 235         if ($CFG->useblogassociations) {
 236
 237             // Pre-select the course for associations.
 238             if ($courseid) {
 239                 $context = context_course::instance($courseid);
 240                 $entry->courseassoc = $context->id;
 241             }
 242
 243             // Pre-select the mod for associations.
 244             if ($modid) {
 245                 $context = context_module::instance($modid);
 246                 $entry->modassoc = $context->id;
 247             }
 248         }
 249         break;
 250
 251     case 'edit':
 252         if (empty($entry->id)) {
 253             print_error('wrongentryid', 'blog');
 254         }
 255         $entry->tags = tag_get_tags_array('post', $entry->id);
 256         $strformheading = get_string('updateentrywithid', 'blog');
 257
 258         break;
 259
 260     default :
 261         print_error('unknowaction');
 262 }
 263
 264 $entry->modid = $modid;
 265 $entry->courseid = $courseid;
 266
 267 echo $OUTPUT->header();
 268 $blogeditform->display();
 269 echo $OUTPUT->footer();
 270
 271 die;