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441 lines
15 KiB
441 lines
15 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* This file contains the editor class for the assignfeedback_editpdf plugin
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*
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* @package assignfeedback_editpdf
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* @copyright 2012 Davo Smith
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace assignfeedback_editpdf;
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/**
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* This class performs crud operations on comments and annotations from a page of a response.
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*
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* No capability checks are done - they should be done by the calling class.
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*
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* @package assignfeedback_editpdf
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* @copyright 2012 Davo Smith
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class page_editor {
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/**
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* Get all comments for a page.
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* @param int $gradeid
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* @param int $pageno
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* @param bool $draft
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* @return comment[]
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*/
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public static function get_comments($gradeid, $pageno, $draft) {
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global $DB;
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$comments = array();
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$params = array('gradeid'=>$gradeid, 'pageno'=>$pageno, 'draft'=>1);
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if (!$draft) {
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$params['draft'] = 0;
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}
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// Fetch comments ordered by position on the page.
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$records = $DB->get_records('assignfeedback_editpdf_cmnt', $params, 'y, x');
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foreach ($records as $record) {
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array_push($comments, new comment($record));
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}
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return $comments;
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}
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/**
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* Set all comments for a page.
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* @param int $gradeid
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* @param int $pageno
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* @param comment[] $comments
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* @return int - the number of comments.
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*/
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public static function set_comments($gradeid, $pageno, $comments) {
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global $DB;
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$DB->delete_records('assignfeedback_editpdf_cmnt', array('gradeid'=>$gradeid, 'pageno'=>$pageno, 'draft'=>1));
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$added = 0;
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foreach ($comments as $record) {
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// Force these.
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if (!($record instanceof comment)) {
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$comment = new comment($record);
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} else {
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$comment = $record;
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}
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if (trim($comment->rawtext) === '') {
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continue;
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}
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$comment->gradeid = $gradeid;
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$comment->pageno = $pageno;
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$comment->draft = 1;
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if (self::add_comment($comment)) {
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$added++;
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}
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}
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return $added;
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}
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/**
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* Get a single comment by id.
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* @param int $commentid
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* @return comment or false
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*/
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public static function get_comment($commentid) {
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$record = $DB->get_record('assignfeedback_editpdf_cmnt', array('id'=>$commentid), '*', IGNORE_MISSING);
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if ($record) {
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return new comment($record);
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}
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return false;
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}
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/**
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* Add a comment to a page.
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* @param comment $comment
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* @return bool
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*/
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public static function add_comment(comment $comment) {
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global $DB;
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$comment->id = null;
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return $DB->insert_record('assignfeedback_editpdf_cmnt', $comment);
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}
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/**
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* Remove a comment from a page.
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* @param int $commentid
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* @return bool
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*/
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public static function remove_comment($commentid) {
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global $DB;
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return $DB->delete_records('assignfeedback_editpdf_cmnt', array('id'=>$commentid));
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}
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/**
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* Get all annotations for a page.
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* @param int $gradeid
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* @param int $pageno
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* @param bool $draft
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* @return annotation[]
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*/
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public static function get_annotations($gradeid, $pageno, $draft) {
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global $DB;
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$params = array('gradeid'=>$gradeid, 'pageno'=>$pageno, 'draft'=>1);
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if (!$draft) {
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$params['draft'] = 0;
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}
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$annotations = array();
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$records = $DB->get_records('assignfeedback_editpdf_annot', $params);
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foreach ($records as $record) {
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array_push($annotations, new annotation($record));
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}
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return $annotations;
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}
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/**
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* Set all annotations for a page.
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* @param int $gradeid
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* @param int $pageno
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* @param annotation[] $annotations
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* @return int - the number of annotations.
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*/
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public static function set_annotations($gradeid, $pageno, $annotations) {
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global $DB;
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$DB->delete_records('assignfeedback_editpdf_annot', array('gradeid' => $gradeid, 'pageno' => $pageno, 'draft' => 1));
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$added = 0;
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foreach ($annotations as $record) {
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// Force these.
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if (!($record instanceof annotation)) {
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$annotation = new annotation($record);
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} else {
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$annotation = $record;
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}
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$annotation->gradeid = $gradeid;
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$annotation->pageno = $pageno;
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$annotation->draft = 1;
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if (self::add_annotation($annotation)) {
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$added++;
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}
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}
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return $added;
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}
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/**
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* Get a single annotation by id.
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* @param int $annotationid
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* @return annotation or false
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*/
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public static function get_annotation($annotationid) {
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global $DB;
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$record = $DB->get_record('assignfeedback_editpdf_annot', array('id'=>$annotationid), '*', IGNORE_MISSING);
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if ($record) {
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return new annotation($record);
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}
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return false;
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}
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/**
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* Unrelease drafts
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* @param int $gradeid
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* @return bool
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*/
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public static function unrelease_drafts($gradeid) {
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global $DB;
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// Delete the non-draft annotations and comments.
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$result = $DB->delete_records('assignfeedback_editpdf_cmnt', array('gradeid'=>$gradeid, 'draft'=>0));
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$result = $DB->delete_records('assignfeedback_editpdf_annot', array('gradeid'=>$gradeid, 'draft'=>0)) && $result;
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return $result;
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}
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/**
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* Release the draft comments and annotations to students.
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* @param int $gradeid
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* @return bool
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*/
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public static function release_drafts($gradeid) {
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global $DB;
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// Delete the previous non-draft annotations and comments.
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$DB->delete_records('assignfeedback_editpdf_cmnt', array('gradeid'=>$gradeid, 'draft'=>0));
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$DB->delete_records('assignfeedback_editpdf_annot', array('gradeid'=>$gradeid, 'draft'=>0));
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// Copy all the draft annotations and comments to non-drafts.
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$records = $DB->get_records('assignfeedback_editpdf_annot', array('gradeid'=>$gradeid, 'draft'=>1));
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foreach ($records as $record) {
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unset($record->id);
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$record->draft = 0;
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$DB->insert_record('assignfeedback_editpdf_annot', $record);
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}
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$records = $DB->get_records('assignfeedback_editpdf_cmnt', array('gradeid'=>$gradeid, 'draft'=>1));
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foreach ($records as $record) {
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unset($record->id);
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$record->draft = 0;
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$DB->insert_record('assignfeedback_editpdf_cmnt', $record);
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}
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return true;
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}
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/**
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* Has annotations or comments.
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* @param int $gradeid
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* @return bool
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*/
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public static function has_annotations_or_comments($gradeid, $includedraft) {
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global $DB;
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$params = array('gradeid'=>$gradeid);
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if (!$includedraft) {
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$params['draft'] = 0;
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}
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if ($DB->count_records('assignfeedback_editpdf_cmnt', $params)) {
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return true;
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}
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if ($DB->count_records('assignfeedback_editpdf_annot', $params)) {
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return true;
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}
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return false;
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}
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/**
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* Aborts all draft annotations and reverts to the last version released to students.
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* @param int $gradeid
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* @return bool
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*/
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public static function revert_drafts($gradeid) {
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global $DB;
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// Delete the previous non-draft annotations and comments.
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$DB->delete_records('assignfeedback_editpdf_cmnt', array('gradeid'=>$gradeid, 'draft'=>1));
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$DB->delete_records('assignfeedback_editpdf_annot', array('gradeid'=>$gradeid, 'draft'=>1));
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// Copy all the draft annotations and comments to non-drafts.
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$records = $DB->get_records('assignfeedback_editpdf_annot', array('gradeid'=>$gradeid, 'draft'=>0));
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foreach ($records as $record) {
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unset($record->id);
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$record->draft = 0;
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$DB->insert_record('assignfeedback_editpdf_annot', $record);
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}
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$records = $DB->get_records('assignfeedback_editpdf_cmnt', array('gradeid'=>$gradeid, 'draft'=>0));
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foreach ($records as $record) {
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unset($record->id);
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$record->draft = 0;
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$DB->insert_record('assignfeedback_editpdf_annot', $record);
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}
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return true;
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}
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/**
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* Add a annotation to a page.
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* @param annotation $annotation
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* @return bool
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*/
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public static function add_annotation(annotation $annotation) {
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global $DB;
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$annotation->id = null;
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return $DB->insert_record('assignfeedback_editpdf_annot', $annotation);
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}
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/**
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* Remove a annotation from a page.
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* @param int $annotationid
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* @return bool
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*/
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public static function remove_annotation($annotationid) {
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global $DB;
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return $DB->delete_records('assignfeedback_editpdf_annot', array('id'=>$annotationid));
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}
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/**
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* Copy annotations, comments, pages, and other required content from the source user to the current group member
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* being procssed when using applytoall.
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*
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* @param int|\assign $assignment
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* @param stdClass $grade
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* @param int $sourceuserid
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* @return bool
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*/
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public static function copy_drafts_from_to($assignment, $grade, $sourceuserid) {
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global $DB;
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// Delete any existing annotations and comments from current user.
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$DB->delete_records('assignfeedback_editpdf_annot', array('gradeid' => $grade->id));
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$DB->delete_records('assignfeedback_editpdf_cmnt', array('gradeid' => $grade->id));
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// Get gradeid, annotations and comments from sourceuserid.
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$sourceusergrade = $assignment->get_user_grade($sourceuserid, true, $grade->attemptnumber);
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$annotations = $DB->get_records('assignfeedback_editpdf_annot', array('gradeid' => $sourceusergrade->id, 'draft' => 1));
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$comments = $DB->get_records('assignfeedback_editpdf_cmnt', array('gradeid' => $sourceusergrade->id, 'draft' => 1));
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$contextid = $assignment->get_context()->id;
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$sourceitemid = $sourceusergrade->id;
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// Add annotations and comments to current user to generate feedback file.
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foreach ($annotations as $annotation) {
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$annotation->gradeid = $grade->id;
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$DB->insert_record('assignfeedback_editpdf_annot', $annotation);
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}
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foreach ($comments as $comment) {
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$comment->gradeid = $grade->id;
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$DB->insert_record('assignfeedback_editpdf_cmnt', $comment);
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}
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$fs = get_file_storage();
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// Copy the stamp files.
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self::replace_files_from_to($fs, $contextid, $sourceitemid, $grade->id, document_services::STAMPS_FILEAREA, true);
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// Copy the PAGE_IMAGE_FILEAREA files.
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self::replace_files_from_to($fs, $contextid, $sourceitemid, $grade->id, document_services::PAGE_IMAGE_FILEAREA);
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return true;
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}
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/**
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* Replace the area files in the specified area with those in the source item id.
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*
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* @param \file_storage $fs The file storage class
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* @param int $contextid The ID of the context for the assignment.
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* @param int $sourceitemid The itemid to copy from - typically the source grade id.
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* @param int $itemid The itemid to copy to - typically the target grade id.
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* @param string $area The file storage area.
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* @param bool $includesubdirs Whether to copy the content of sub-directories too.
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*/
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public static function replace_files_from_to($fs, $contextid, $sourceitemid, $itemid, $area, $includesubdirs = false) {
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$component = 'assignfeedback_editpdf';
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// Remove the existing files within this area.
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$fs->delete_area_files($contextid, $component, $area, $itemid);
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// Copy the files from the source area.
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if ($files = $fs->get_area_files($contextid, $component, $area, $sourceitemid,
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"filename", $includesubdirs)) {
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foreach ($files as $file) {
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$newrecord = new \stdClass();
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$newrecord->contextid = $contextid;
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$newrecord->itemid = $itemid;
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$fs->create_file_from_storedfile($newrecord, $file);
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}
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}
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}
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/**
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* Delete the draft annotations and comments.
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*
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* This is intended to be used when the version of the PDF has changed and the annotations
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* might not be relevant any more, therefore we should delete them.
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*
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* @param int $gradeid The grade ID.
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* @return bool
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*/
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public static function delete_draft_content($gradeid) {
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global $DB;
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$conditions = array('gradeid' => $gradeid, 'draft' => 1);
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$result = $DB->delete_records('assignfeedback_editpdf_annot', $conditions);
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$result = $result && $DB->delete_records('assignfeedback_editpdf_cmnt', $conditions);
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return $result;
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}
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/**
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* Set page rotation value.
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* @param int $gradeid grade id.
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* @param int $pageno page number.
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* @param bool $isrotated whether the page is rotated or not.
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* @param string $pathnamehash path name hash
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* @param int $degree rotation degree.
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* @throws \dml_exception
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*/
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public static function set_page_rotation($gradeid, $pageno, $isrotated, $pathnamehash, $degree = 0) {
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global $DB;
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$oldrecord = self::get_page_rotation($gradeid, $pageno);
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if ($oldrecord == null) {
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$record = new \stdClass();
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$record->gradeid = $gradeid;
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$record->pageno = $pageno;
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$record->isrotated = $isrotated;
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$record->pathnamehash = $pathnamehash;
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$record->degree = $degree;
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$DB->insert_record('assignfeedback_editpdf_rot', $record, false);
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} else {
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$oldrecord->isrotated = $isrotated;
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$oldrecord->pathnamehash = $pathnamehash;
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$oldrecord->degree = $degree;
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$DB->update_record('assignfeedback_editpdf_rot', $oldrecord, false);
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}
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}
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/**
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* Get Page Rotation Value.
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* @param int $gradeid grade id.
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* @param int $pageno page number.
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* @return mixed
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* @throws \dml_exception
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*/
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public static function get_page_rotation($gradeid, $pageno) {
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global $DB;
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$result = $DB->get_record('assignfeedback_editpdf_rot', array('gradeid' => $gradeid, 'pageno' => $pageno));
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return $result;
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}
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}
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