$pageversion2 = ouwiki_get_page_version($subwiki, $pagename, $v2);
if (!$pageversion1 || !$pageversion2 || (!empty($pageversion1->deletedat) || !empty($pageversion2->deletedat)) && !$candelete) {
print_error('Specified version does not exist');
}
if ($pageversion1 >= $pageversion2) {
print_error('Versions out of order');
}
// Print header
$tabhistparams = ouwiki_shared_url_params($pagename, $subwiki, $cm);
echo $ouwikioutput->ouwiki_print_start($ouwiki, $cm, $course, $subwiki, $pagename, $context, array(array('name' => get_string('tab_history', 'ouwiki'), 'link' => new moodle_url('/mod/ouwiki/history.php', $tabhistparams)), array('name' => get_string('changesnav', 'ouwiki'), 'link' => null)), true, true);
// Obtain difference between two versions
list($diff1, $diff2, $numchanges) = ouwiki_diff_html($pageversion1->xhtml, $pageversion2->xhtml);
$fs = get_file_storage();
$files1 = ($files1 = $fs->get_area_files($context->id, 'mod_ouwiki', 'attachment', $pageversion1->versionid, "timemodified", false)) ? $files1 : null;
$files2 = ($files2 = $fs->get_area_files($context->id, 'mod_ouwiki', 'attachment', $pageversion2->versionid, "timemodified", false)) ? $files2 : null;
list($attachdiff1, $attachdiff2, $attachnumchanges) = ouwiki_diff_attachments($files1, $files2, $context->id, $pageversion1->versionid, $pageversion2->versionid);
$numchanges = $numchanges + $attachnumchanges;
// if there are no changes then check if there are any annotations in the new version
if ($numchanges == 0) {
$annotations = ouwiki_get_annotations($pageversion2);
if (count($annotations) === 0) {
$advice = get_string('diff_nochanges', 'ouwiki');
} else {
$advice = get_string('diff_someannotations', 'ouwiki');
}
} else {
$advice = get_string('advice_diff', 'ouwiki');
}
print '<p class="ouw_advice">' . $advice . ' ' . get_string('returntohistory', 'ouwiki', 'history.php?' . ouwiki_display_wiki_parameters($pagename, $subwiki, $cm)) . '</p>';
// Obtain pluginfile urls.
$pageversion1->xhtml = file_rewrite_pluginfile_urls($pageversion1->xhtml, 'pluginfile.php', $context->id, 'mod_ouwiki', 'content', $pageversion1->versionid);
public function test_attachment_diff()
{
global $CFG, $USER;
require_once $CFG->dirroot . '/mod/ouwiki/locallib.php';
$this->resetAfterTest(true);
$this->setAdminUser();
$course = $this->getDataGenerator()->create_course();
$generator = $this->getDataGenerator()->get_plugin_generator('mod_ouwiki');
$ouwiki = $generator->create_instance((object) array('course' => $course->id));
$cm = get_coursemodule_from_instance('ouwiki', $ouwiki->id);
$this->assertNotEmpty($cm);
$context = context_module::instance($cm->id);
$subwiki = ouwiki_get_subwiki($course, $ouwiki, $cm, $context, 0, $USER->id, true);
// Add start page.
$startpageversion = ouwiki_get_current_page($subwiki, null, OUWIKI_GETPAGE_CREATE);
// Add version1 - no attachments.
$ver1id = ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, null, 'TEST', -1, -1, -1, false, null);
// Add version 2 - no attachments.
$ver2id = ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, null, 'TEST', -1, -1, -1, false, null);
// Check diff when no attachments.
$fs = get_file_storage();
$files1 = ($files1 = $fs->get_area_files($context->id, 'mod_ouwiki', 'attachment', $ver1id, 'timemodified', false)) ? $files1 : null;
$files2 = ($files2 = $fs->get_area_files($context->id, 'mod_ouwiki', 'attachment', $ver2id, 'timemodified', false)) ? $files2 : null;
list($attachdiff1, $attachdiff2, $attachnumchanges) = ouwiki_diff_attachments($files1, $files2, $context->id, $ver1id, $ver2id);
$this->assertEquals(0, $attachnumchanges);
$hasno1 = strpos(get_string('noattachments', 'ouwiki'), $attachdiff1);
$hasno2 = strpos(get_string('noattachments', 'ouwiki'), $attachdiff2);
$this->assertTrue($hasno1 !== false && $hasno2 !== false);
// Add attachment to first and re-check.
$filerecord = (object) array('contextid' => $context->id, 'component' => 'mod_ouwiki', 'filearea' => 'attachment', 'itemid' => $ver1id, 'filename' => 'test1.txt', 'filepath' => '/');
$fs->create_file_from_string($filerecord, 'test');
$files1 = ($files1 = $fs->get_area_files($context->id, 'mod_ouwiki', 'attachment', $ver1id, 'timemodified', false)) ? $files1 : null;
list($attachdiff1, $attachdiff2, $attachnumchanges) = ouwiki_diff_attachments($files1, $files2, $context->id, $ver1id, $ver2id);
$this->assertEquals(1, $attachnumchanges);
$hasno1 = strpos($attachdiff1, 'test1.txt');
$hasno2 = strpos($attachdiff2, get_string('noattachments', 'ouwiki'));
$this->assertTrue($hasno1 !== false && $hasno2 !== false);
// Add same attachment to second and test no changes.
$filerecord->itemid = $ver2id;
$fs->create_file_from_string($filerecord, 'test');
$files2 = ($files2 = $fs->get_area_files($context->id, 'mod_ouwiki', 'attachment', $ver2id, 'timemodified', false)) ? $files2 : null;
list($attachdiff1, $attachdiff2, $attachnumchanges) = ouwiki_diff_attachments($files1, $files2, $context->id, $ver1id, $ver2id);
$this->assertEquals(0, $attachnumchanges);
$hasno1 = strpos($attachdiff1, 'test1.txt');
$hasno2 = strpos($attachdiff2, 'test1.txt');
$this->assertTrue($hasno1 !== false && $hasno2 !== false);
// Add a second attachemnt to second version and test.
$filerecord->filename = 'test2.txt';
$fs->create_file_from_string($filerecord, 'test2');
$files2 = ($files2 = $fs->get_area_files($context->id, 'mod_ouwiki', 'attachment', $ver2id, 'timemodified', false)) ? $files2 : null;
list($attachdiff1, $attachdiff2, $attachnumchanges) = ouwiki_diff_attachments($files1, $files2, $context->id, $ver1id, $ver2id);
$this->assertEquals(1, $attachnumchanges);
$hasno1 = strpos($attachdiff1, 'test1.txt');
$hasno2 = strpos($attachdiff2, 'test2.txt');
$this->assertTrue($hasno1 !== false && $hasno2 !== false);
}
