protected Object lookupRefValue(String _sRef, Object _oKey, String _sForeignKey)
throws Exception {
if (_oKey == null) return null;
// to analyze
int nPos = _sRef.indexOf('.');
String sRefTable = _sRef.substring(0, nPos);
String sRefField = _sRef.substring(nPos + 1);
// to construct SQL
String fk =
(_sForeignKey != null && (_sForeignKey = _sForeignKey.trim()).length() > 0)
? _sForeignKey
: "ID";
String strSQL = "SELECT " + sRefField + " AS VALUE FROM " + sRefTable + " WHERE " + fk + "=";
if (_oKey instanceof String) {
strSQL += "'" + ((String) _oKey).trim() + "'";
} else {
strSQL += _oKey.toString().trim();
}
// to execute query
ISession session = this.getSession();
IStatement query = session.createQuery(strSQL, DolphinObject.class, 1);
IObjects results = query.executeQuery();
// to fetch the result
DolphinObject result = results.next();
results.clear();
query.clear();
// to return
return result == null ? null : result.getProperty("VALUE");
}
/** Shows object list in page. */
protected ActionForward doList() throws PureException {
SearchForm thisform = (SearchForm) form;
List colInfos = null;
IObjects iobjs = null;
List objList = null;
Pager pager = new Pager();
// 1. to fetch the objects in current page
try {
pager.setPageSize(thisform.getPageSize());
pager.setCurrPageIndex(thisform.getPage());
int nMaxSize = pager.getPageSize() * (pager.getCurrPageIndex() + 1);
iobjs = getIObjects(nMaxSize);
if (iobjs == null) {
pager.setItemCount(0);
} else {
pager.setItemCount(iobjs.getSize());
objList = iobjs.toList(pager);
}
} finally {
if (iobjs != null) iobjs.clear();
}
// 2. to prepare the head titles
if (objList != null && objList.size() > 0) {
ListHelper lh = new ListHelper();
lh.setSenery(getScenery());
colInfos =
lh.prepareColsInfo(
thisform.getColunms(),
getInclude(),
getExclude(),
getReplace(),
thisform.getEntityMetadata().getName(),
true);
lh.clear();
}
// 3. to prepare the result in page
String sTitle = getTitle();
request.setAttribute("title", sTitle == null ? "ап╠М" : sTitle);
request.setAttribute("headTable", getHeadTable());
request.setAttribute("objs", objList);
request.setAttribute("pager", pager);
request.setAttribute("colInfos", colInfos);
request.setAttribute("tailedButtons", getTailedButtons());
request.setAttribute("metaDatas", thisform.getEntityMetadata().getProperties());
request.setAttribute("submitee", getSubmitee());
request.setAttribute("scenery", getScenery());
request.setAttribute("needExport", new Boolean(isNeedExport()));
request.setAttribute("needRowSelector", new Boolean(isNeedRowSelector()));
if (isNeedSerial()) {
request.setAttribute("needSerial", new Boolean(true));
}
return mapping.findForward("success");
}