PHP calendar_edit_event_allowed函数代码示例

function calendar_print_event($event)
{
    global $CFG, $USER;
    static $strftimetime;
    $event = calendar_add_event_metadata($event);
    echo '<a name="event_' . $event->id . '"></a><table class="event" cellspacing="0">';
    echo '<tr><td class="picture">';
    if (!empty($event->icon)) {
        echo $event->icon;
    } else {
        print_spacer(16, 16);
    }
    echo '</td>';
    echo '<td class="topic">';
    if (!empty($event->referer)) {
        echo '<div class="referer">' . $event->referer . '</div>';
    } else {
        echo '<div class="name">' . $event->name . "</div>";
    }
    if (!empty($event->courselink)) {
        echo '<div class="course">' . $event->courselink . ' </div>';
    }
    if (!empty($event->time)) {
        echo '<span class="date">' . $event->time . '</span>';
    } else {
        echo '<span class="date">' . calendar_time_representation($event->timestart) . '</span>';
    }
    echo '</td></tr>';
    echo '<tr><td class="side">&nbsp;</td>';
    if (isset($event->cssclass)) {
        echo '<td class="description ' . $event->cssclass . '">';
    } else {
        echo '<td class="description">';
    }
    echo format_text($event->description, FORMAT_HTML);
    if (calendar_edit_event_allowed($event)) {
        echo '<div class="commands">';
        $calendarcourseid = '';
        if (!empty($event->calendarcourseid)) {
            $calendarcourseid = '&amp;course=' . $event->calendarcourseid;
        }
        if (empty($event->cmid)) {
            $editlink = CALENDAR_URL . 'event.php?action=edit&amp;id=' . $event->id . $calendarcourseid;
            $deletelink = CALENDAR_URL . 'event.php?action=delete&amp;id=' . $event->id . $calendarcourseid;
        } else {
            $editlink = $CFG->wwwroot . '/course/mod.php?update=' . $event->cmid . '&amp;return=true&amp;sesskey=' . $USER->sesskey;
            $deletelink = '';
            // deleting activities directly from calendar is dangerous/confusing - see MDL-11843
        }
        echo ' <a href="' . $editlink . '"><img
                  src="' . $CFG->pixpath . '/t/edit.gif" alt="' . get_string('tt_editevent', 'calendar') . '"
                  title="' . get_string('tt_editevent', 'calendar') . '" /></a>';
        if ($deletelink) {
            echo ' <a href="' . $deletelink . '"><img
                      src="' . $CFG->pixpath . '/t/delete.gif" alt="' . get_string('tt_deleteevent', 'calendar') . '"
                      title="' . get_string('tt_deleteevent', 'calendar') . '" /></a>';
        }
        echo '</div>';
    }
    echo '</td></tr></table>';
}

 /**
  * Get Calendar events
  *
  * @param array $events A list of events
  * @param array $options various options
  * @return array Array of event details
  * @since Moodle 2.5
  */
 public static function get_calendar_events($events = array(), $options = array())
 {
     global $SITE, $DB, $USER, $CFG;
     require_once $CFG->dirroot . "/calendar/lib.php";
     // Parameter validation.
     $params = self::validate_parameters(self::get_calendar_events_parameters(), array('events' => $events, 'options' => $options));
     $funcparam = array('courses' => array(), 'groups' => array());
     $hassystemcap = has_capability('moodle/calendar:manageentries', context_system::instance());
     $warnings = array();
     // Let us findout courses that we can return events from.
     if (!$hassystemcap) {
         $courses = enrol_get_my_courses();
         $courses = array_keys($courses);
         foreach ($params['events']['courseids'] as $id) {
             if (in_array($id, $courses)) {
                 $funcparam['courses'][] = $id;
             } else {
                 $warnings[] = array('item' => $id, 'warningcode' => 'nopermissions', 'message' => 'you do not have permissions to access this course');
             }
         }
     } else {
         $courses = $params['events']['courseids'];
         $funcparam['courses'] = $courses;
     }
     // Let us findout groups that we can return events from.
     if (!$hassystemcap) {
         $groups = groups_get_my_groups();
         $groups = array_keys($groups);
         foreach ($params['events']['groupids'] as $id) {
             if (in_array($id, $groups)) {
                 $funcparam['groups'][] = $id;
             } else {
                 $warnings[] = array('item' => $id, 'warningcode' => 'nopermissions', 'message' => 'you do not have permissions to access this group');
             }
         }
     } else {
         $groups = $params['events']['groupids'];
         $funcparam['groups'] = $groups;
     }
     // Do we need user events?
     if (!empty($params['options']['userevents'])) {
         $funcparam['users'] = array($USER->id);
     } else {
         $funcparam['users'] = false;
     }
     // Do we need site events?
     if (!empty($params['options']['siteevents'])) {
         $funcparam['courses'][] = $SITE->id;
     }
     // We treat 0 and null as no end.
     if (empty($params['options']['timeend'])) {
         $params['options']['timeend'] = PHP_INT_MAX;
     }
     $eventlist = calendar_get_events($params['options']['timestart'], $params['options']['timeend'], $funcparam['users'], $funcparam['groups'], $funcparam['courses'], true, $params['options']['ignorehidden']);
     // WS expects arrays.
     $events = array();
     foreach ($eventlist as $id => $event) {
         $events[$id] = (array) $event;
     }
     // We need to get events asked for eventids.
     $eventsbyid = calendar_get_events_by_id($params['events']['eventids']);
     foreach ($eventsbyid as $eventid => $eventobj) {
         $event = (array) $eventobj;
         if (isset($events[$eventid])) {
             continue;
         }
         if ($hassystemcap) {
             // User can see everything, no further check is needed.
             $events[$eventid] = $event;
         } else {
             if (!empty($eventobj->modulename)) {
                 $cm = get_coursemodule_from_instance($eventobj->modulename, $eventobj->instance);
                 if (\core_availability\info_module::is_user_visible($cm, 0, false)) {
                     $events[$eventid] = $event;
                 }
             } else {
                 // Can the user actually see this event?
                 $eventobj = calendar_event::load($eventobj);
                 if ($eventobj->courseid == $SITE->id || !empty($eventobj->groupid) && in_array($eventobj->groupid, $groups) || !empty($eventobj->courseid) && in_array($eventobj->courseid, $courses) || $USER->id == $eventobj->userid || calendar_edit_event_allowed($eventid)) {
                     $events[$eventid] = $event;
                 } else {
                     $warnings[] = array('item' => $eventid, 'warningcode' => 'nopermissions', 'message' => 'you do not have permissions to view this event');
                 }
             }
         }
     }
     return array('events' => $events, 'warnings' => $warnings);
 }

 /**
  * Displays an event
  *
  * @param calendar_event $event
  * @param bool $showactions
  * @return string
  */
 public function event(calendar_event $event, $showactions = true)
 {
     global $CFG;
     $event = calendar_add_event_metadata($event);
     $context = $event->context;
     $anchor = html_writer::tag('a', '', array('name' => 'event_' . $event->id));
     $table = new html_table();
     $table->attributes = array('class' => 'event', 'cellspacing' => '0');
     $table->data = array(0 => new html_table_row(), 1 => new html_table_row());
     if (!empty($event->icon)) {
         $table->data[0]->cells[0] = new html_table_cell($anchor . $event->icon);
     } else {
         $table->data[0]->cells[0] = new html_table_cell($anchor . $this->output->spacer(array('height' => 16, 'width' => 16, 'br' => true)));
     }
     $table->data[0]->cells[0]->attributes['class'] .= ' picture';
     $table->data[0]->cells[1] = new html_table_cell();
     $table->data[0]->cells[1]->attributes['class'] .= ' topic';
     if (!empty($event->referer)) {
         $table->data[0]->cells[1]->text .= html_writer::tag('div', $event->referer, array('class' => 'referer'));
     } else {
         $table->data[0]->cells[1]->text .= html_writer::tag('div', format_string($event->name, false, array('context' => $context)), array('class' => 'name'));
     }
     if (!empty($event->courselink)) {
         $table->data[0]->cells[1]->text .= html_writer::tag('div', $event->courselink, array('class' => 'course'));
     }
     // Show subscription source if needed.
     if (!empty($event->subscription) && $CFG->calendar_showicalsource) {
         if (!empty($event->subscription->url)) {
             $source = html_writer::link($event->subscription->url, get_string('subsource', 'calendar', $event->subscription));
         } else {
             // File based ical.
             $source = get_string('subsource', 'calendar', $event->subscription);
         }
         $table->data[0]->cells[1]->text .= html_writer::tag('div', $source, array('class' => 'subscription'));
     }
     if (!empty($event->time)) {
         $table->data[0]->cells[1]->text .= html_writer::tag('span', $event->time, array('class' => 'date'));
     } else {
         $table->data[0]->cells[1]->text .= html_writer::tag('span', calendar_time_representation($event->timestart), array('class' => 'date'));
     }
     $table->data[1]->cells[0] = new html_table_cell(' ');
     $table->data[1]->cells[0]->attributes['class'] .= 'side';
     $table->data[1]->cells[1] = new html_table_cell(format_text($event->description, $event->format, array('context' => $context)));
     $table->data[1]->cells[1]->attributes['class'] .= ' description';
     if (isset($event->cssclass)) {
         $table->data[1]->cells[1]->attributes['class'] .= ' ' . $event->cssclass;
     }
     if (calendar_edit_event_allowed($event) && $showactions) {
         if (empty($event->cmid)) {
             $editlink = new moodle_url(CALENDAR_URL . 'event.php', array('action' => 'edit', 'id' => $event->id));
             $deletelink = new moodle_url(CALENDAR_URL . 'delete.php', array('id' => $event->id));
             if (!empty($event->calendarcourseid)) {
                 $editlink->param('course', $event->calendarcourseid);
                 $deletelink->param('course', $event->calendarcourseid);
             }
         } else {
             $editlink = new moodle_url('/course/mod.php', array('update' => $event->cmid, 'return' => true, 'sesskey' => sesskey()));
             $deletelink = null;
         }
         $commands = html_writer::start_tag('div', array('class' => 'commands'));
         $commands .= html_writer::start_tag('a', array('href' => $editlink));
         $commands .= html_writer::empty_tag('img', array('src' => $this->output->pix_url('t/edit'), 'alt' => get_string('tt_editevent', 'calendar'), 'title' => get_string('tt_editevent', 'calendar')));
         $commands .= html_writer::end_tag('a');
         if ($deletelink != null) {
             $commands .= html_writer::start_tag('a', array('href' => $deletelink));
             $commands .= html_writer::empty_tag('img', array('src' => $this->output->pix_url('t/delete'), 'alt' => get_string('tt_deleteevent', 'calendar'), 'title' => get_string('tt_deleteevent', 'calendar')));
             $commands .= html_writer::end_tag('a');
         }
         $commands .= html_writer::end_tag('div');
         $table->data[1]->cells[1]->text .= $commands;
     }
     return html_writer::table($table);
 }

//.........这里部分代码省略.........
                     $this->properties->groupid = 0;
                     $this->properties->userid = $USER->id;
                     break;
                 case 'course':
                     $this->properties->groupid = 0;
                     $this->properties->userid = $USER->id;
                     break;
                 case 'group':
                     $this->properties->userid = $USER->id;
                     break;
                 default:
                     // Ewww we should NEVER get here, but just incase we do lets
                     // fail gracefully
                     $usingeditor = false;
                     break;
             }
             // If we are actually using the editor, we recalculate the context because some default values
             // were set when calculate_context() was called from the constructor.
             if ($usingeditor) {
                 $this->properties->context = $this->calculate_context($this->properties);
                 $this->editorcontext = $this->properties->context;
             }
             $editor = $this->properties->description;
             $this->properties->format = $this->properties->description['format'];
             $this->properties->description = $this->properties->description['text'];
         }
         // Insert the event into the database
         $this->properties->id = $DB->insert_record('event', $this->properties);
         if ($usingeditor) {
             $this->properties->description = file_save_draft_area_files($editor['itemid'], $this->editorcontext->id, 'calendar', 'event_description', $this->properties->id, $this->editoroptions, $editor['text'], $this->editoroptions['forcehttps']);
             $DB->set_field('event', 'description', $this->properties->description, array('id' => $this->properties->id));
         }
         // Log the event entry.
         add_to_log($this->properties->courseid, 'calendar', 'add', 'event.php?action=edit&id=' . $this->properties->id, $this->properties->name);
         $repeatedids = array();
         if (!empty($this->properties->repeat)) {
             $this->properties->repeatid = $this->properties->id;
             $DB->set_field('event', 'repeatid', $this->properties->repeatid, array('id' => $this->properties->id));
             $eventcopy = clone $this->properties;
             unset($eventcopy->id);
             for ($i = 1; $i < $eventcopy->repeats; $i++) {
                 $eventcopy->timestart = $eventcopy->timestart + WEEKSECS + dst_offset_on($eventcopy->timestart) - dst_offset_on($eventcopy->timestart + WEEKSECS);
                 // Get the event id for the log record.
                 $eventcopyid = $DB->insert_record('event', $eventcopy);
                 // If the context has been set delete all associated files
                 if ($usingeditor) {
                     $fs = get_file_storage();
                     $files = $fs->get_area_files($this->editorcontext->id, 'calendar', 'event_description', $this->properties->id);
                     foreach ($files as $file) {
                         $fs->create_file_from_storedfile(array('itemid' => $eventcopyid), $file);
                     }
                 }
                 $repeatedids[] = $eventcopyid;
                 // Log the event entry.
                 add_to_log($eventcopy->courseid, 'calendar', 'add', 'event.php?action=edit&amp;id=' . $eventcopyid, $eventcopy->name);
             }
         }
         // Hook for tracking added events
         self::calendar_event_hook('add_event', array($this->properties, $repeatedids));
         return true;
     } else {
         if ($checkcapability) {
             if (!calendar_edit_event_allowed($this->properties)) {
                 print_error('nopermissiontoupdatecalendar');
             }
         }
         if ($usingeditor) {
             if ($this->editorcontext !== null) {
                 $this->properties->description = file_save_draft_area_files($this->properties->description['itemid'], $this->editorcontext->id, 'calendar', 'event_description', $this->properties->id, $this->editoroptions, $this->properties->description['text'], $this->editoroptions['forcehttps']);
             } else {
                 $this->properties->format = $this->properties->description['format'];
                 $this->properties->description = $this->properties->description['text'];
             }
         }
         $event = $DB->get_record('event', array('id' => $this->properties->id));
         $updaterepeated = !empty($this->properties->repeatid) && !empty($this->properties->repeateditall);
         if ($updaterepeated) {
             // Update all
             if ($this->properties->timestart != $event->timestart) {
                 $timestartoffset = $this->properties->timestart - $event->timestart;
                 $sql = "UPDATE {event}\n                               SET name = ?,\n                                   description = ?,\n                                   timestart = timestart + ?,\n                                   timeduration = ?,\n                                   timemodified = ?\n                             WHERE repeatid = ?";
                 $params = array($this->properties->name, $this->properties->description, $timestartoffset, $this->properties->timeduration, time(), $event->repeatid);
             } else {
                 $sql = "UPDATE {event} SET name = ?, description = ?, timeduration = ?, timemodified = ? WHERE repeatid = ?";
                 $params = array($this->properties->name, $this->properties->description, $this->properties->timeduration, time(), $event->repeatid);
             }
             $DB->execute($sql, $params);
             // Log the event update.
             add_to_log($this->properties->courseid, 'calendar', 'edit all', 'event.php?action=edit&amp;id=' . $this->properties->id, $this->properties->name);
         } else {
             $DB->update_record('event', $this->properties);
             $event = calendar_event::load($this->properties->id);
             $this->properties = $event->properties();
             add_to_log($this->properties->courseid, 'calendar', 'edit', 'event.php?action=edit&amp;id=' . $this->properties->id, $this->properties->name);
         }
         // Hook for tracking event updates
         self::calendar_event_hook('update_event', array($this->properties, $updaterepeated));
         return true;
     }
 }

     $event = get_record('event', 'id', $eventid);
     if ($event === false) {
         error('Invalid event');
     }
     if (!calendar_edit_event_allowed($event)) {
         error('You are not authorized to do this');
     }
     break;
 case 'edit':
     $title = get_string('editevent', 'calendar');
     $event = get_record('event', 'id', $eventid);
     $repeats = optional_param('repeats', 0, PARAM_INT);
     if ($event === false) {
         error('Invalid event');
     }
     if (!calendar_edit_event_allowed($event)) {
         error('You are not authorized to do this');
     }
     if ($form = data_submitted() and confirm_sesskey()) {
         $form->name = clean_param(strip_tags($form->name, '<lang><span>'), PARAM_CLEAN);
         $form->timestart = make_timestamp($form->startyr, $form->startmon, $form->startday, $form->starthr, $form->startmin);
         if ($form->duration == 1) {
             $form->timeduration = make_timestamp($form->endyr, $form->endmon, $form->endday, $form->endhr, $form->endmin) - $form->timestart;
             if ($form->timeduration < 0) {
                 $form->timeduration = 0;
             }
         } else {
             if ($form->duration == 2) {
                 $form->timeduration = $form->minutes * MINSECS;
             } else {
                 $form->timeduration = 0;

 /**
  * Displays an event
  *
  * @param calendar_event $event
  * @param bool $showactions
  * @return string
  */
 public function event(calendar_event $event, $showactions = true)
 {
     global $CFG;
     $event = calendar_add_event_metadata($event);
     $context = $event->context;
     $output = '';
     if (!empty($event->icon)) {
         $output .= $event->icon;
     } else {
         $output .= $this->output->spacer(array('height' => 16, 'width' => 16));
     }
     if (!empty($event->referer)) {
         $output .= $this->output->heading($event->referer, 3, array('class' => 'referer'));
     } else {
         $output .= $this->output->heading(format_string($event->name, false, array('context' => $context)), 3, array('class' => 'name'));
     }
     if (!empty($event->courselink)) {
         $output .= html_writer::tag('div', $event->courselink, array('class' => 'course'));
     }
     // Show subscription source if needed.
     if (!empty($event->subscription) && $CFG->calendar_showicalsource) {
         if (!empty($event->subscription->url)) {
             $source = html_writer::link($event->subscription->url, get_string('subsource', 'calendar', $event->subscription));
         } else {
             // File based ical.
             $source = get_string('subsource', 'calendar', $event->subscription);
         }
         $output .= html_writer::tag('div', $source, array('class' => 'subscription'));
     }
     if (!empty($event->time)) {
         $output .= html_writer::tag('span', $event->time, array('class' => 'date'));
     } else {
         $output .= html_writer::tag('span', calendar_time_representation($event->timestart), array('class' => 'date'));
     }
     $eventdetailshtml = '';
     $eventdetailsclasses = '';
     $eventdetailshtml .= format_text($event->description, $event->format, array('context' => $context));
     $eventdetailsclasses .= 'description';
     if (isset($event->cssclass)) {
         $eventdetailsclasses .= ' ' . $event->cssclass;
     }
     $output .= html_writer::tag('div', $eventdetailshtml, array('class' => $eventdetailsclasses));
     if (calendar_edit_event_allowed($event) && $showactions) {
         if (empty($event->cmid)) {
             $editlink = new moodle_url(CALENDAR_URL . 'event.php', array('action' => 'edit', 'id' => $event->id));
             $deletelink = new moodle_url(CALENDAR_URL . 'delete.php', array('id' => $event->id));
             if (!empty($event->calendarcourseid)) {
                 $editlink->param('course', $event->calendarcourseid);
                 $deletelink->param('course', $event->calendarcourseid);
             }
         } else {
             $editlink = new moodle_url('/course/mod.php', array('update' => $event->cmid, 'return' => true, 'sesskey' => sesskey()));
             $deletelink = null;
         }
         $commands = html_writer::start_tag('div', array('class' => 'commands'));
         $commands .= html_writer::start_tag('a', array('href' => $editlink));
         $commands .= html_writer::empty_tag('img', array('src' => $this->output->pix_url('t/edit'), 'alt' => get_string('tt_editevent', 'calendar'), 'title' => get_string('tt_editevent', 'calendar')));
         $commands .= html_writer::end_tag('a');
         if ($deletelink != null) {
             $commands .= html_writer::start_tag('a', array('href' => $deletelink));
             $commands .= html_writer::empty_tag('img', array('src' => $this->output->pix_url('t/delete'), 'alt' => get_string('tt_deleteevent', 'calendar'), 'title' => get_string('tt_deleteevent', 'calendar')));
             $commands .= html_writer::end_tag('a');
         }
         $commands .= html_writer::end_tag('div');
         $output .= $commands;
     }
     return html_writer::tag('div', $output, array('class' => 'event', 'id' => 'event_' . $event->id));
 }