/**
* internal function to add update markers to wiki texts
* these markers will later be replaced by render_wiki (see render_wiki.inc.php FormatBlockChangemarks)
*/
public function getTextfieldWithUpdateNotes($fieldname)
{
require_once confGet('DIR_STREBER') . "db/db_itemchange.inc.php";
require_once confGet('DIR_STREBER') . 'db/db_itemperson.inc.php';
global $auth;
### has user last edited this item? ###
if ($this->modified_by == $auth->cur_user->id) {
return $this->{$fieldname};
} else {
if ($item_people = ItemPerson::getAll(array('person' => $auth->cur_user->id, 'item' => $this->id))) {
$ip = $item_people[0];
if ($ip->viewed_last > $this->modified) {
return $this->{$fieldname};
}
} else {
return $this->{$fieldname};
}
}
$new_version = $this->{$fieldname};
$changes = ItemChange::getItemChanges(array('item' => $this->id, 'field' => $fieldname, 'order_by' => 'modified', 'date_min' => $ip->viewed_last));
if (!$changes) {
return $this->{$fieldname};
}
$old_version = $changes[0]->value_old;
require_once confGet('DIR_STREBER') . "std/difference_engine.inc.php";
$ota = explode("\n", str_replace("\r\n", "\n", $old_version));
$nta = explode("\n", str_replace("\r\n", "\n", $new_version));
$diffs = new Diff($ota, $nta);
$new_lines = array();
foreach ($diffs as $d) {
foreach ($d as $do) {
if ($do->type == 'copy') {
$new_lines[] .= join("\n", $do->orig);
} else {
if ($do->type == 'add') {
$new_lines[] = "[added word]" . join("\n", $do->closing) . "[/added word]";
} else {
if ($do->type == 'delete') {
$new_lines[] = '[deleted word]' . join("\n", $do->orig) . '[/deleted word]';
} else {
if ($do->type == 'change') {
### render word level differences
$wld = new WordLevelDiff($do->orig, $do->closing);
$change_ratio = DbProjectItem::getEditRatioOfWordLevelDiff($wld);
if ($change_ratio > 0.1) {
$new_lines[] = "[deleted word]" . join("\n", $do->orig) . "[/deleted word]";
$new_lines[] = "[added word]" . join("\n", $do->closing) . "[/added word]";
} else {
$new_lines[] = formatWordLevelDiff($wld);
}
}
}
}
}
}
}
$buffer = join($new_lines, "\n");
#debugMessage($old_version);
#debugMessage( htmlspecialchars($buffer));
return $buffer;
}
