private void doCache(SuperVO vo, Dataset ds, Row row) {
ViewContext widgetCtx = getLifeCycleContext().getViewContext();
// 此子表的dsId
String dsId = getSlaveDataset(widgetCtx);
DatasetRelation[] rels = widgetCtx.getView().getViewModels().getDsrelations().getDsRelations();
if (rels == null) return;
String foreignKey = null;
for (int i = 0; i < rels.length; i++) {
DatasetRelation dsRel = rels[i];
if (dsRel.getDetailDataset().equals(dsId)) {
foreignKey = dsRel.getDetailForeignKey();
break;
}
}
if (foreignKey == null) return;
String foreignValue = (String) vo.getAttributeValue(foreignKey);
List<SuperVO> list = (List<SuperVO>) LfwCacheManager.getSessionCache().get(foreignValue);
if (list == null) {
list = new ArrayList<SuperVO>();
}
list.add(vo);
LfwCacheManager.getSessionCache().put(foreignValue, list);
// 删除的子表的行信息
String delRowForeignKey = foreignValue + "_" + dsId;
List<Row> listDelRow = (List<Row>) LfwCacheManager.getSessionCache().get(delRowForeignKey);
if (listDelRow == null) {
listDelRow = new ArrayList<Row>();
}
listDelRow.add(row);
LfwCacheManager.getSessionCache().put(delRowForeignKey, listDelRow);
}
public void execute() {
ViewContext widgetctx = getLifeCycleContext().getViewContext();
String dsId = getSlaveDataset(widgetctx);
Dataset ds = widgetctx.getView().getViewModels().getDataset(dsId);
Row selRow = ds.getSelectedRow();
// 未选择行，给出提示
if (selRow == null) throw new LfwRuntimeException("请选择要删除的行!");
// 持久化
Dataset2SuperVOSerializer ser = new Dataset2SuperVOSerializer();
SuperVO vo = ser.serialize(ds, selRow)[0];
if (vo.getPrimaryKey() == null) delete = true;
if (delete) doDeleteVO(vo);
else doCache(vo, ds, selRow);
if (selRow != null) {
int rowIndex = ds.getRowIndex(selRow);
ds.removeRow(rowIndex);
if (rowIndex > ds.getCurrentRowCount() - 1) rowIndex = ds.getCurrentRowCount() - 1;
ds.setRowSelectIndex(rowIndex);
}
doAfterDelLine();
}