private Item CreateItem(IPUMS.Variable variable, Level level)
{
Item item = new Item(level.IDs);
item.Name = variable.Name;
if (_codebook.ValueSets.ContainsKey(variable.Name))
{
item.Label = _codebook.ValueSets[variable.Name].Label;
}
else
{
item.Label = variable.Name;
}
item.Start = variable.StartPosition;
item.Length = variable.Length;
item.ZeroFill = true;
// see if there is a value set for this item
if (_codebook.ValueSets.ContainsKey(variable.Name))
{
IPUMS.ValueSet ipumsVS = _codebook.ValueSets[variable.Name];
ValueSet vs = new ValueSet(item);
item.AddValueSet(vs);
vs.Name = ipumsVS.Name + "_VS";
vs.Label = ipumsVS.Label;
foreach (IPUMS.Value ipumsValue in ipumsVS.Values)
{
Value value = new Value();
vs.AddValue(value);
value.Label = ipumsValue.Label;
ValuePair valuePair = new ValuePair();
value.AddValuePair(valuePair);
valuePair.From = ipumsValue.Code;
}
}
return(item);
}
// UNCHECKBOXIZE -- item-name
private void ProcessUncheckboxize(string[] commands)
{
const string UncheckboxizeNameFormat = "{0}_{1}";
const string UncheckboxizeValueSetSuffix = "_VS1";
Item item = (Item)GetSymbolFromName(commands[1], SymbolTypes.Item);
if (!item.Alpha)
{
throw new Exception(String.Format(Messages.UncheckboxizeNotAlpha, item.Name));
}
if (item.ValueSets.Count == 0)
{
throw new Exception(String.Format(Messages.UncheckboxizedNoValueSet, item.Name));
}
List <Value> checkboxValues = item.ValueSets[0].Values;
int maxValueWidth = 0;
foreach (Value value in checkboxValues)
{
maxValueWidth = Math.Max(maxValueWidth, value.Pairs[0].From.Trim().Length);
}
if (maxValueWidth == 0 || item.Length % maxValueWidth != 0)
{
throw new Exception(String.Format(Messages.UncheckboxizedNotValidCheckbox, item.Name, item.ValueSets[0].Name, maxValueWidth, item.Length));
}
int numCheckboxes = item.Length / maxValueWidth;
// make sure that all of the names (to be created) are valid and available
for (int occ = 0; occ < numCheckboxes; occ++)
{
string newName = null;
try
{
newName = String.Format(UncheckboxizeNameFormat, item.Name, occ + 1);
CheckIfValidNewName(item.ParentDictionary, newName);
newName = newName + UncheckboxizeValueSetSuffix;
CheckIfValidNewName(item.ParentDictionary, newName);
}
catch (Exception)
{
throw new Exception(String.Format(Messages.UnsubitemizeNameInvalid, item.Name, newName));
}
}
// remove the old item
int itemIndex = item.ParentRecord.Items.IndexOf(item);
item.ParentRecord.Items.RemoveAt(itemIndex);
// create the new items
ValueSet baseVS = null;
for (int occ = 0; occ < numCheckboxes; occ++)
{
Item newItem = new Item(item.ParentRecord);
newItem.ParentRecord.Items.Insert(itemIndex + occ, newItem);
newItem.Name = String.Format(UncheckboxizeNameFormat, item.Name, occ + 1);
newItem.Label = occ < checkboxValues.Count ? String.Format("{0} ({1})", item.Label, checkboxValues[occ].Label) : item.Label;
newItem.Start = item.Start + maxValueWidth * occ;
newItem.Occurrences = 1;
newItem.Note = item.Note;
newItem.Length = maxValueWidth;
newItem.Numeric = true;
newItem.Subitem = item.Subitem;
newItem.ZeroFill = item.ParentDictionary.ZeroFillDefault;
ValueSet vs = null;
// add the value set
if (baseVS == null)
{
Value uncheckedValue = new Value();
uncheckedValue.Label = "Unchecked";
uncheckedValue.Pairs.Add(new ValuePair("0"));
Value checkedValue = new Value();
checkedValue.Label = "Checked";
checkedValue.Pairs.Add(new ValuePair("1"));
baseVS = new ValueSet(newItem);
baseVS.AddValue(uncheckedValue);
baseVS.AddValue(checkedValue);
vs = baseVS;
}
else
{
if (baseVS.LinkID == Int32.MinValue)
{
baseVS.LinkID = DataDictionaryWorker.GetNewValueSetLinkID(item.ParentDictionary);
}
vs = new ValueSet(newItem);
vs.EstablishValueSetLink(baseVS);
}
vs.Name = String.Format(UncheckboxizeNameFormat, item.Name, occ + 1) + UncheckboxizeValueSetSuffix;
vs.Label = newItem.Label;
newItem.AddValueSet(vs);
}
SetOutputSuccess(String.Format(Messages.UncheckboxizedSuccess, item.Name, numCheckboxes));
}