@Override
public boolean hasChanged(Field field) {
final Map<Integer, Field> savedFields = new HashMap<Integer, Field>();
if (field != null)
for (Field subfield : field.getFields()) savedFields.put(subfield.getId(), subfield);
for (StructureHolder holder : oneToMany.getSelected()) {
// Field has never been saved, if there are changes, let's save.
if (holder.getField() == null || holder.getField().getId() == 0) {
if (holder.hasChanged()) {
Debug.println("NEW: {0} says it has changed", holder.getStructure().getClass().getName());
return true;
} else return false;
} else {
// We are working with previously saved data that could have changed.
Field dataField = savedFields.remove(holder.getField().getId());
if (dataField == null) { // How??
Debug.println("OneToMany hasChanged badness, save to clean up.");
return true;
}
if (holder.getStructure().hasChanged(dataField)) {
Debug.println("OLD: {0} says it has changed", holder.getStructure().getClass().getName());
return true;
}
}
}
return !savedFields.isEmpty();
}
@Override
public void save(Field parent, Field field) {
if (field == null) {
field = new Field();
field.setName(getId());
if (parent != null) {
field.setParent(parent);
parent.getFields().add(field);
}
}
final List<StructureHolder> unsaved = new ArrayList<StructureHolder>();
final List<Integer> saved = new ArrayList<Integer>();
saved.add(0);
for (StructureHolder cur : oneToMany.getSelected()) {
if (cur.getField() == null) unsaved.add(cur);
else {
cur.getStructure().save(field, cur.getField());
saved.add(cur.getField().getId());
}
}
for (StructureHolder cur : unsaved) {
Field subfield = new Field(field.getName() + "Subfield", null);
subfield.setParent(field);
cur.getStructure().save(field, subfield);
field.getFields().add(subfield);
cur.setField(subfield);
}
final HashSet<Field> savedSet = new HashSet<Field>();
for (Field subfield : field.getFields())
if (saved.contains(subfield.getId())) savedSet.add(subfield);
field.setFields(savedSet);
}
private void updateRecords() {
records.clear();
if (displayFields.isEmpty()) {
records.setWidget(new HTML(""));
return;
}
List<StructureHolder> holders = oneToMany.getSelected();
if (holders.isEmpty()) {
records.setWidget(new HTML(""));
return;
}
List<String> descs = holders.get(0).getStructure().extractDescriptions();
Grid grid = new Grid(holders.size() + 1, displayFields.size());
grid.setCellSpacing(0);
grid.setCellPadding(8);
grid.addStyleName("page_assessment_classScheme_grid");
int row = 0;
int column = 0;
for (Integer value : displayFields) {
try {
grid.setHTML(
row,
column,
"<span class=\"page_assessment_classScheme_grid_th\">" + descs.get(value) + "</span>");
} catch (IndexOutOfBoundsException e) {
grid.setHTML(row, column, "<span class=\"page_assessment_classScheme_grid_th\">-</span>");
} finally {
column++;
}
}
row++;
for (StructureHolder holder : holders) {
final ArrayList<String> raw = new ArrayList<String>(), pretty = new ArrayList<String>();
final Structure<Object> structure = holder.getStructure();
final Map<String, String> map = new LinkedHashMap<String, String>();
for (Object obj : structure.getClassificationInfo()) {
ClassificationInfo info = (ClassificationInfo) obj;
map.put(info.getDescription(), info.getData());
raw.add(info.getData());
}
try {
structure.getDisplayableData(raw, pretty, 0);
} catch (Exception e) {
continue;
}
column = 0;
for (Integer value : displayFields) {
try {
grid.setHTML(
row,
column,
"<span class=\"page_assessment_classScheme_content\">"
+ pretty.get(value)
+ "</span>");
} catch (IndexOutOfBoundsException e) {
grid.setHTML(row, column, "<span class=\"page_assessment_classScheme_content\">-</span>");
} finally {
column++;
}
}
row++;
}
for (int i = 0; i < grid.getColumnCount(); i++) grid.getColumnFormatter().setWidth(i, "150px");
records.setWidget(grid);
}