/**
* Converts the object to a string which can be stored as a file
* @return string
* @throws Exception
*/
public function stringify()
{
$out = array();
if (empty($this->author)) {
throw new Exception('Author must not be empty.');
}
if (empty($this->execute) && empty($this->sql)) {
throw new Exception('There is neither an execute command nor a SQL part. One MUST be set.');
}
foreach (array_keys(get_class_vars('Change')) as $var) {
switch ($var) {
case 'slow':
if ($this->slow) {
$out[] = $this->getDocComment($var);
}
break;
case 'execute':
foreach ($this->execute as $exec) {
$out[] = $this->getDocComment($var, $exec);
}
unset($exec);
break;
case 'rights':
if ($this->rights == 'normal') {
break;
}
case 'db':
if (empty($this->{$var}) || $this->{$var} == 'standard') {
break;
}
$out[] = $this->getDocComment($var, $this->{$var});
break;
case 'version':
case 'since':
case 'author':
case 'message':
if (empty($this->{$var})) {
break;
}
$out[] = $this->getDocComment($var, $this->{$var});
break;
}
}
if (!empty($this->sql)) {
$out[] = str_replace(array(DbChangesSettings::CRLF, DbChangesSettings::CR), DbChangesSettings::LF, $this->sql);
}
$out[] = '';
$out = implode(DbChangesSettings::LF, $out);
$lineEnding = $this->settings->getLineEnding();
if ($lineEnding != DbChangesSettings::LF) {
$out = str_replace(DbChangesSettings::LF, $lineEnding, $out);
}
return $out;
}
