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 $entry = new stdClass();
  52 $entry->id = null;
  53
  54 if ($id) {
  55     if (!$entry = new blog_entry($id)) {
  56         print_error('wrongentryid', 'blog');
  57     }
  58     $userid = $entry->userid;
  59 } else {
  60     $userid = $USER->id;
  61 }
  62
  63 $sitecontext = context_system::instance();
  64 $usercontext = context_user::instance($userid);
  65 $PAGE->set_context($usercontext);
  66 $blognode = $PAGE->settingsnav->find('blogadd', null);
  67 $blognode->make_active();
  68
  69 require_login($courseid);
  70
  71 if (empty($CFG->enableblogs)) {
  72     print_error('blogdisable', 'blog');
  73 }
  74
  75 if (isguestuser()) {
  76     print_error('noguestentry', 'blog');
  77 }
  78
  79 $returnurl = new moodle_url('/blog/index.php');
  80
  81 if (!empty($courseid) && empty($modid)) {
  82     $returnurl->param('courseid', $courseid);
  83 }
  84
  85 // If a modid is given, guess courseid.
  86 if (!empty($modid)) {
  87     $returnurl->param('modid', $modid);
  88     $courseid = $DB->get_field('course_modules', 'course', array('id' => $modid));
  89     $returnurl->param('courseid', $courseid);
  90 }
  91
  92 $blogheaders = blog_get_headers();
  93
  94 if (!has_capability('moodle/blog:create', $sitecontext) && !has_capability('moodle/blog:manageentries', $sitecontext)) {
  95     print_error('cannoteditentryorblog');
  96 }
  97
  98 // Make sure that the person trying to edit has access right.
  99 if ($id) {
 100     if (!blog_user_can_edit_entry($entry)) {
 101         print_error('notallowedtoedit', 'blog');
 102     }
 103     $entry->subject      = clean_text($entry->subject);
 104     $entry->summary      = clean_text($entry->summary, $entry->format);
 105 } else {
 106     if (!has_capability('moodle/blog:create', $sitecontext)) {
 107         print_error('noentry', 'blog'); // The capability "manageentries" is not enough for adding.
 108     }
 109 }
 110 $returnurl->param('userid', $userid);
 111
 112 // Blog renderer.
 113 $output = $PAGE->get_renderer('blog');
 114
 115 $strblogs = get_string('blogs', 'blog');
 116
 117 if ($action === 'delete') {
 118     if (empty($entry->id)) {
 119         print_error('wrongentryid', 'blog');
 120     }
 121     if (data_submitted() && $confirm && confirm_sesskey()) {
 122         // Make sure the current user is the author of the blog entry, or has some deleteanyentry capability.
 123         if (!blog_user_can_edit_entry($entry)) {
 124             print_error('nopermissionstodeleteentry', 'blog');
 125         } else {
 126             $entry->delete();
 127             blog_rss_delete_file($userid);
 128             redirect($returnurl);
 129         }
 130     } else if (blog_user_can_edit_entry($entry)) {
 131         $optionsyes = array('entryid'=>$id, 'action'=>'delete', 'confirm'=>1, 'sesskey'=>sesskey(), 'courseid'=>$courseid);
 132         $optionsno = array('userid'=>$entry->userid, 'courseid'=>$courseid);
 133         $PAGE->set_title("$SITE->shortname: $strblogs");
 134         $PAGE->set_heading($SITE->fullname);
 135         echo $OUTPUT->header();
 136
 137         // Output the entry.
 138         $entry->prepare_render();
 139         echo $output->render($entry);
 140
 141         echo '<br />';
 142         echo $OUTPUT->confirm(get_string('blogdeleteconfirm', 'blog'),
 143                               new moodle_url('edit.php', $optionsyes),
 144                               new moodle_url('index.php', $optionsno));
 145         echo $OUTPUT->footer();
 146         die;
 147     }
 148 } else if ($action == 'add') {
 149     $PAGE->set_title("$SITE->shortname: $strblogs: " . get_string('addnewentry', 'blog'));
 150     $PAGE->set_heading(fullname($USER));
 151 } else if ($action == 'edit') {
 152     $PAGE->set_title("$SITE->shortname: $strblogs: " . get_string('editentry', 'blog'));
 153     $PAGE->set_heading(fullname($USER));
 154 }
 155
 156 if (!empty($entry->id)) {
 157     if ($CFG->useblogassociations && ($blogassociations = $DB->get_records('blog_association', array('blogid' => $entry->id)))) {
 158
 159         foreach ($blogassociations as $assocrec) {
 160             $context = context::instance_by_id($assocrec->contextid);
 161
 162             switch ($context->contextlevel) {
 163                 case CONTEXT_COURSE:
 164                     $entry->courseassoc = $assocrec->contextid;
 165                     break;
 166                 case CONTEXT_MODULE:
 167                     $entry->modassoc = $assocrec->contextid;
 168                     break;
 169             }
 170         }
 171     }
 172 }
 173
 174 require_once('edit_form.php');
 175 $summaryoptions = array('maxfiles'=> 99, 'maxbytes'=>$CFG->maxbytes, 'trusttext'=>true, 'context'=>$sitecontext,
 176     'subdirs'=>file_area_contains_subdirs($sitecontext, 'blog', 'post', $entry->id));
 177 $attachmentoptions = array('subdirs'=>false, 'maxfiles'=> 99, 'maxbytes'=>$CFG->maxbytes);
 178
 179 $blogeditform = new blog_edit_form(null, compact('entry',
 180                                                  'summaryoptions',
 181                                                  'attachmentoptions',
 182                                                  'sitecontext',
 183                                                  'courseid',
 184                                                  'modid'));
 185
 186 $entry = file_prepare_standard_editor($entry, 'summary', $summaryoptions, $sitecontext, 'blog', 'post', $entry->id);
 187 $entry = file_prepare_standard_filemanager($entry,
 188                                            'attachment',
 189                                            $attachmentoptions,
 190                                            $sitecontext,
 191                                            'blog',
 192                                            'attachment',
 193                                            $entry->id);
 194
 195 if (!empty($CFG->usetags) && !empty($entry->id)) {
 196     include_once($CFG->dirroot.'/tag/lib.php');
 197     $entry->tags = tag_get_tags_array('post', $entry->id);
 198 }
 199
 200 $entry->action = $action;
 201 // Set defaults.
 202 $blogeditform->set_data($entry);
 203
 204 if ($blogeditform->is_cancelled()) {
 205     redirect($returnurl);
 206
 207 } else if ($data = $blogeditform->get_data()) {
 208
 209     switch ($action) {
 210         case 'add':
 211             $blogentry = new blog_entry(null, $data, $blogeditform);
 212             $blogentry->add();
 213             $blogentry->edit($data, $blogeditform, $summaryoptions, $attachmentoptions);
 214         break;
 215
 216         case 'edit':
 217             if (empty($entry->id)) {
 218                 print_error('wrongentryid', 'blog');
 219             }
 220
 221             $entry->edit($data, $blogeditform, $summaryoptions, $attachmentoptions);
 222         break;
 223
 224         default :
 225             print_error('invalidaction');
 226     }
 227
 228     redirect($returnurl);
 229 }
 230
 231
 232 // GUI setup.
 233 switch ($action) {
 234     case 'add':
 235         // Prepare new empty form.
 236         $entry->publishstate = 'site';
 237         $strformheading = get_string('addnewentry', 'blog');
 238         $entry->action       = $action;
 239
 240         if ($CFG->useblogassociations) {
 241
 242             // Pre-select the course for associations.
 243             if ($courseid) {
 244                 $context = context_course::instance($courseid);
 245                 $entry->courseassoc = $context->id;
 246             }
 247
 248             // Pre-select the mod for associations.
 249             if ($modid) {
 250                 $context = context_module::instance($modid);
 251                 $entry->modassoc = $context->id;
 252             }
 253         }
 254         break;
 255
 256     case 'edit':
 257         if (empty($entry->id)) {
 258             print_error('wrongentryid', 'blog');
 259         }
 260         $entry->tags = tag_get_tags_array('post', $entry->id);
 261         $strformheading = get_string('updateentrywithid', 'blog');
 262
 263         break;
 264
 265     default :
 266         print_error('unknowaction');
 267 }
 268
 269 $entry->modid = $modid;
 270 $entry->courseid = $courseid;
 271
 272 echo $OUTPUT->header();
 273 $blogeditform->display();
 274 echo $OUTPUT->footer();
 275
 276 die;