}
ISourceModule sourceModule = field.getSourceModule();
ModuleDeclaration module = SourceParserUtil
.getModuleDeclaration(sourceModule);
ASTNode node = PHPModelUtils.getNodeByField(module, field);
if (node == null) {// define constant
PHPCallExpression callExpression = DefineMethodUtils
.getDefineNodeByField(module, field);
if (callExpression != null) {
CallArgumentsList args = callExpression.getArgs();
if (args != null && args.getChilds() != null
&& args.getChilds().size() >= 2) {
ASTNode argument = (ASTNode) args.getChilds().get(1);
if (argument instanceof Scalar) {
String value = ASTUtils.stripQuotes(((Scalar) argument)
.getValue());
return value;
}