function render_changes($changes, $level = 0)
{
$indent = $level * 1;
if (is_string($changes)) {
echo str_repeat("\t", $indent), '*', "\t", $changes, "\r\n";
} elseif (is_array($changes)) {
foreach ($changes as $change) {
render_changes($change, $level);
}
} elseif (is_object($changes)) {
if (isset($changes->name)) {
// Changes group
//echo '### ', $changes->name, "\r\n";
if (isset($changes->changes)) {
render_changes($changes->changes, $level);
}
} else {
if (isset($changes->description)) {
render_changes($changes->description, $level);
}
if (isset($changes->changes)) {
render_changes($changes->changes, $level + 1);
}
}
}
}
/**
* renders a comparision between two versions of an item @ingroup pages
*/
function itemViewDiff()
{
global $PH;
global $auth;
require_once confGet('DIR_STREBER') . 'render/render_wiki.inc.php';
### get task ####
$item_id = get('item');
if (!($item = DbProjectItem::getObjectById($item_id))) {
$PH->abortWarning("invalid item-id", ERROR_FATAL);
}
if (!($project = Project::getVisibleById($item->project))) {
$PH->abortWarning("this item has an invalid project id", ERROR_DATASTRUCTURE);
}
require_once confGet('DIR_STREBER') . "db/db_itemchange.inc.php";
$versions = ItemVersion::getFromItem($item);
$date1 = get('date1');
$date2 = get('date2');
if (!$date1) {
#if(count($versions) > 1) {
# if($auth->cur_user->last_logout < $versions[count($versions)-2]->date_to)
# {
# $date1 = $auth->cur_user->last_logout;
# }
# else {
# $date1 = $versions[count($versions)-2]->date_from;
# }
#}
#else {
foreach (array_reverse($versions) as $v) {
if ($v->author == $auth->cur_user->id) {
$date1 = $v->date_from;
break;
}
}
#}
}
if (!$date2) {
$date2 = getGMTString();
}
$page = new Page();
$page->cur_tab = 'projects';
$page->crumbs = build_project_crumbs($project);
$page->options = build_projView_options($project);
$page->title = $item->name;
$page->title_minor = __('changes');
$page->add_function(new PageFunction(array('target' => 'itemView', 'params' => array('item' => $item->id), 'icon' => 'edit', 'name' => __('View item'))));
### render title ###
echo new PageHeader();
echo new PageContentOpen();
if ($date1 > $date2) {
new FeedbackMessage(__("date1 should be smaller than date2. Swapped"));
$t = $date1;
$date1 = $date2;
$date2 = $t;
}
if (count($versions) == 1) {
echo __("item has not been edited history");
} else {
$old_version = NULL;
$version_right = NULL;
$version_left = $versions[0];
foreach ($versions as $v) {
if ($v->date_from <= $date1) {
$version_left = $v;
}
if ($v->date_from >= $date2) {
if (isset($version_right)) {
if ($version_right->date_from > $v->date_from) {
$version_right = $v;
}
} else {
$version_right = $v;
}
}
}
if (!isset($version_right)) {
$version_right = $versions[count($versions) - 1];
}
$options_left = array();
$options_right = array();
### list versions left ###
for ($i = 0; $i < count($versions) - 1; $i++) {
$v = $versions[$i];
if ($person = Person::getVisibleById($v->author)) {
$author = $person->name;
} else {
$author = __('unknown');
}
if ($v->version_number == $version_left->version_number) {
$str_link = $PH->getUrl('itemViewDiff', array('item' => $item->id, 'date1' => $versions[$i]->date_from, 'date2' => $versions[$i]->date_to));
$name = ' v.' . $v->version_number . ' -- ' . $author . " -- " . $v->date_from;
$options_left[] = "<option selected=1 value='" . $str_link . "'>" . $name . "</option>";
} else {
if ($v->version_number > $version_left->version_number) {
if ($v->version_number < $version_right->version_number) {
$str_link = $PH->getUrl('itemViewDiff', array('item' => $item->id, 'date1' => $versions[$i]->date_from, 'date2' => $versions[$i]->date_to));
$name = '> v.' . $v->version_number . ' -- ' . $author . " -- " . renderDate($v->date_from);
} else {
$str_link = $PH->getUrl('itemViewDiff', array('item' => $item->id, 'date1' => $versions[$i]->date_from, 'date2' => $version_right->date_to));
$name = '>> v.' . $v->version_number . ' -- ' . $author . " -- " . renderDate($v->date_from);
}
$options_left[] = "<option value='" . $str_link . "'>" . $name . "</option>";
} else {
$str_link = $PH->getUrl('itemViewDiff', array('item' => $item->id, 'date1' => $versions[$i]->date_from, 'date2' => $version_right->date_from));
$name = '< v.' . $v->version_number . ' -- ' . $author . " -- " . renderDate($v->date_from);
$options_left[] = "<option value='" . $str_link . "'>" . $name . "</option>";
}
}
}
### list versions right ###
for ($i = 1; $i < count($versions); $i++) {
$v = $versions[$i];
if ($person = Person::getVisibleById($v->author)) {
$author = $person->name;
} else {
$author = __('unknown');
}
if ($v->version_number == $version_right->version_number) {
$str_link = $PH->getUrl('itemViewDiff', array('item' => $item->id, 'date1' => $versions[$i]->date_from, 'date2' => $versions[$i]->date_to));
$name = ' v.' . $v->version_number . ' -- ' . $author . " -- " . $v->date_from;
$options_right[] = "<option selected=1 value='" . $str_link . "'>" . $name . "</option>";
} else {
if ($v->version_number > $version_right->version_number) {
$str_link = $PH->getUrl('itemViewDiff', array('item' => $item->id, 'date1' => $version_left->date_from, 'date2' => $versions[$i]->date_from));
$name = '> v.' . $v->version_number . ' -- ' . $author . ' -- ' . renderDate($v->date_from);
$options_right[] = "<option value='" . $str_link . "'>" . $name . "</option>";
} else {
if ($v->version_number > $version_left->version_number) {
$str_link = $PH->getUrl('itemViewDiff', array('item' => $item->id, 'date1' => $version_left->date_from, 'date2' => $versions[$i]->date_from));
$name = '< v.' . $v->version_number . ' -- ' . $author . " -- " . renderDate($v->date_from);
} else {
$str_link = $PH->getUrl('itemViewDiff', array('item' => $item->id, 'date1' => $versions[$i]->date_from, 'date2' => $versions[$i]->date_to));
$name = '<< v.' . $v->version_number . ' -- ' . $author . ' -- ' . renderDate($v->date_from);
}
$options_right[] = "<option value='" . $str_link . "'>" . $name . "</option>";
}
}
}
### prev ###
if ($version_left->version_number > 1) {
$link_prev = $PH->getLink('itemViewDiff', '<< ' . __('prev change'), array('item' => $item->id, 'date1' => $versions[$version_left->version_number - 2]->date_from, 'date2' => $versions[$version_left->version_number - 2]->date_to), NULL, true);
} else {
$link_prev = '';
}
### next ###
if ($version_right->version_number < count($versions)) {
$link_next = $PH->getLink('itemViewDiff', __('next') . '>>', array('item' => $item->id, 'date1' => $versions[$version_right->version_number - 1]->date_from, 'date2' => $versions[$version_right->version_number - 1]->date_to), NULL, true);
} else {
$link_next = '';
}
### summary ###
$link_summary = $PH->getLink('itemViewDiff', __('summary'), array('item' => $item->id, 'date1' => $auth->cur_user->last_logout, 'date2' => getGMTString()), NULL, true);
echo "<div class=diff>";
echo "<table class=nav><tr>";
echo "<td class=older>" . "<select onChange='location.href=this.options[this.selectedIndex].value'>" . join(array_reverse($options_left)) . "</select>" . '<br><b class=doclear></b>' . $link_prev . "</td>";
echo "<td class=newer>" . "<select onChange='location.href=this.options[this.selectedIndex].value'>" . join(array_reverse($options_right)) . "</select>" . '<br><b class=doclear></b>' . $link_next . $link_summary . "</td>";
echo "</table>";
#if(!$date2 || !$date1) {
# echo sprintf(__("Item did not exists at %s"), renderTime($date2));
#}
if ($old_version == $version_right) {
echo sprintf(__('no changes between %s and %s'), renderTime($date1), renderTime($date2));
}
### collect changes ###
$old_field_values = array();
$new_field_values = array();
foreach ($versions as $v) {
if ($v->version_number <= $version_left->version_number) {
foreach ($v->values as $name => $value) {
$old_field_values[$name] = $value;
}
}
if ($v->version_number >= $version_left->version_number && $v->version_number < $version_right->version_number) {
foreach ($v->values_next as $name => $value) {
$new_field_values[$name] = $value;
}
}
}
foreach ($new_field_values as $field_name => $value) {
echo "<h2>{$field_name}</h2>";
$old_value = isset($old_field_values[$field_name]) ? $old_field_values[$field_name] : "";
$new_value = isset($new_field_values[$field_name]) ? $new_field_values[$field_name] : '';
$field_type = $item->fields[$field_name]->type;
if ($field_type == 'FieldText') {
echo render_changes($old_value, $new_value);
} else {
if ($field_type == 'FieldOption') {
if ($field_name == 'status') {
global $g_status_names;
$old_value = isset($g_status_names[$old_value]) ? $g_status_names[$old_value] : __('undefined');
$new_value = isset($g_status_names[$new_value]) ? $g_status_names[$new_value] : __('undefined');
} else {
if ($field_name == 'label') {
if ($project = Project::getVisibleById($item->project)) {
$labels = explode(",", $project->labels);
$old_value = isset($labels[$old_value - 1]) ? $labels[$old_value - 1] : __('undefined');
$new_value = isset($labels[$new_value - 1]) ? $labels[$new_value - 1] : __('undefined');
}
}
}
echo render_changes($old_value, $new_value);
} else {
if ($field_type == 'FieldInternal') {
if ($field_name == 'parent_item') {
if ($task_parent_old = Task::getVisibleById($old_value)) {
$ar = array();
foreach ($task_parent_old->getFolder() as $f) {
$ar[] = $f->name;
}
$ar[] = $task_parent_old->name;
$old_value = join($ar, " > ");
}
if ($task_parent_new = Task::getVisibleById($new_value)) {
$ar = array();
foreach ($task_parent_new->getFolder() as $f) {
$ar[] = $f->name;
}
$ar[] = $task_parent_new->name;
$new_value = join($ar, " > ");
}
} else {
if ($field_name == 'state') {
$old_value = $old_value == -1 ? __('deleted') : __('ok');
$new_value = $new_value == -1 ? __('deleted') : __('ok');
} else {
if ($field_name == 'pub_level') {
global $g_pub_level_names;
$old_value = isset($g_pub_level_names[$old_value]) ? $g_pub_level_names[$old_value] : __('undefined');
$new_value = isset($g_pub_level_names[$new_value]) ? $g_pub_level_names[$new_value] : __('undefined');
}
}
}
echo render_changes($old_value, $new_value);
} else {
if ($field_type == 'FieldPercentage') {
echo render_changes($old_value, $new_value);
} else {
if ($field_type == 'FieldInt') {
echo render_changes($old_value, $new_value);
} else {
if ($field_type == 'FieldString') {
echo render_changes($old_value, $new_value);
} else {
if ($field_type == 'FieldDate') {
echo render_changes(renderDate($old_value), renderDate($new_value));
} else {
if ($field_type == 'FieldDatetime') {
echo render_changes(renderTimestamp($old_value), renderTimestamp($new_value));
}
}
}
}
}
}
}
}
}
}
echo "</div>";
echo new PageContentClose();
echo new PageHtmlEnd();
}
<?php
$q_teams = array();
if (count($question->get_teams()) > 0) {
$q_teams = $question->get_teams();
} elseif (isset($module)) {
$q_teams[$module] = module_utils::get_moduleid_from_id($module, $mysqli);
}
echo render_metadata($mysqli, $question, $question->use_bloom(), $q_teams, $q_disabled, $string, $userObject);
?>
</div>
</div>
<div id="changes" class="tab-area">
<?php
$changes = $question->get_changes();
echo render_changes($changes, $string);
?>
</div>
<div id="comments" class="tab-area">
<?php
$comments = $question->get_comments($paper_id);
echo render_comments($comments, $string);
?>
</div>
<div id="performance" class="tab-area">
<table style="font-size:90%; width:100%" class="data">
<?php
echo "<tr><th></th><th>" . $string['papername'] . "</th><th>" . $string['screenno'] . "</th><th>" . $string['examdate'] . "</th><th>" . $string['cohort'] . "</th><th></th><th>" . $string['p'] . "</th><th>" . $string['d'] . "</th></tr>\n";
$performance_array = $question->id > -1 ? question_info::question_performance($question->id, $mysqli) : array();
