private List <SCItem> ConvertFields(SCItem destItem, SCItem lastDescendantItem)
{
var destFields = new List <SCField>();
var destItems = new List <SCItem>();
var sourceFields = destItem.Fields;
var itemId = sourceFields.First().ItemId;
IEnumerable <Tuple <string, int> > langVersions = sourceFields.Where(f => f.Version != null && f.Language != null).Select(f => new Tuple <string, int>(f.Language, (int)f.Version)).Distinct();
var languages = sourceFields.Where(f => f.Language != null).Select(f => f.Language).Distinct();
// Migrate existing fields
if (_itemMetadataTemplate.fields.existingFields != null)
{
var filteredExistingFields = sourceFields.Where(f =>
_itemMetadataTemplate.fields.existingFields.Select(mf => mf.fieldId).Contains(f.FieldId));
foreach (var filteredExistingField in filteredExistingFields)
{
var existingField =
_itemMetadataTemplate.fields.existingFields.FirstOrDefault(mf => mf.fieldId == filteredExistingField.FieldId);
if (existingField != null)
{
destFields.Add(filteredExistingField);
}
}
}
// Convert fields
if (_itemMetadataTemplate.fields.convertedFields != null)
{
// Select only fields that are mapped
var filteredConvertedFields = sourceFields.Where(f =>
_itemMetadataTemplate.fields.convertedFields.Select(mf => mf.sourceFieldId).Contains(f.FieldId));
foreach (var filteredConvertedField in filteredConvertedFields)
{
var convertedField =
_itemMetadataTemplate.fields.convertedFields.FirstOrDefault(mf =>
mf.sourceFieldId == filteredConvertedField.FieldId);
if (convertedField != null)
{
// Process fields that have multiple dest fields
if (convertedField.destFields != null && convertedField.destFields.Any())
{
var valueElements = new List <string>();
try
{
valueElements = XmlHelper.GetXmlElementNames(filteredConvertedField.Value);
}
catch (Exception ex)
{
_logger.Log(new LogEntry(LoggingEventType.Error, string.Format("ItemConverter - Failed to parse Xml value for form field item. ItemID = {0} - FieldID = {1} - FieldValue_Decoded = {2}", itemId, filteredConvertedField.Id, filteredConvertedField.Value), ex));
}
var filteredValueElementsToMany = convertedField.destFields.Where(f =>
valueElements.Contains(f.sourceElementName.ToLower(), StringComparer.InvariantCultureIgnoreCase) && (f.destFieldId == null || f.destFieldId == Guid.Empty));
foreach (var valueXmlElementMapping in filteredValueElementsToMany)
{
// Special case for List Datasource fields
if (string.Equals(valueXmlElementMapping.sourceElementName, "Items",
StringComparison.InvariantCultureIgnoreCase))
{
IFieldConverter converter = IoC.CreateConverter(valueXmlElementMapping.fieldConverter);
List <SCField> convertedFields = converter?.ConvertValueElementToFields(filteredConvertedField,
XmlHelper.GetXmlElementValue(filteredConvertedField.Value, valueXmlElementMapping.sourceElementName));
if (convertedFields != null && convertedFields.Any())
{
destFields.AddRange(convertedFields);
}
// Delete existing list items
var listItemMetadataTemplate = _metadataProvider.GetItemMetadataByTemplateName("ExtendedListItem");
if (lastDescendantItem != null)
{
var listItems =
_destMasterRepository.GetSitecoreChildrenItems(listItemMetadataTemplate.destTemplateId,
lastDescendantItem.ID);
foreach (SCItem listItem in listItems)
{
_destMasterRepository.DeleteSitecoreItem(listItem);
}
}
List <SCItem> convertedItems = converter?.ConvertValueElementToItems(filteredConvertedField,
XmlHelper.GetXmlElementValue(filteredConvertedField.Value, valueXmlElementMapping.sourceElementName),
listItemMetadataTemplate, lastDescendantItem ?? destItem);
if (convertedItems != null && convertedItems.Any())
{
destItems.AddRange(convertedItems);
}
// Reporting
if (convertedFields?.Count > 0 && convertedItems?.Count > 0)
{
_conversionReporter.AddUnmappedValueElementSourceField(filteredConvertedField, itemId, valueXmlElementMapping.sourceElementName, XmlHelper.GetXmlElementValue(filteredConvertedField.Value, valueXmlElementMapping.sourceElementName));
}
}
}
var filteredValueElements =
convertedField.destFields.Where(f => valueElements.Contains(f.sourceElementName.ToLower(), StringComparer.InvariantCultureIgnoreCase) && (f.destFieldId != null && f.destFieldId != Guid.Empty));
foreach (var valueXmlElementMapping in filteredValueElements)
{
IFieldConverter converter = IoC.CreateConverter(valueXmlElementMapping.fieldConverter);
SCField destField = converter?.ConvertValueElement(filteredConvertedField, (Guid)valueXmlElementMapping.destFieldId, XmlHelper.GetXmlElementValue(filteredConvertedField.Value, valueXmlElementMapping.sourceElementName), destItems);
if (destField != null && destField.FieldId != Guid.Empty)
{
destFields.Add(destField);
}
}
// Reporting
var unmappedValueElementSourceFields = valueElements.Where(v =>
!convertedField.destFields.Select(f => f.sourceElementName)
.Contains(v, StringComparer.InvariantCultureIgnoreCase));
foreach (var unmappedValueElementSourceField in unmappedValueElementSourceFields)
{
_conversionReporter.AddUnmappedValueElementSourceField(filteredConvertedField, itemId, unmappedValueElementSourceField, XmlHelper.GetXmlElementValue(filteredConvertedField.Value, unmappedValueElementSourceField));
}
}
// Process fields that have a single dest field
else if (convertedField.destFieldId != null && convertedField.destFieldId != Guid.Empty)
{
IFieldConverter converter = IoC.CreateConverter(convertedField.fieldConverter);
SCField destField = converter?.ConvertField(filteredConvertedField, (Guid)convertedField.destFieldId);
if (destField != null && destField.FieldId != Guid.Empty)
{
destFields.Add(destField);
}
}
}
}
}
if (_itemMetadataTemplate.fields.newFields != null)
{
// Create new fields
foreach (var newField in _itemMetadataTemplate.fields.newFields)
{
destFields.AddRange(_fieldFactory.CreateFields(newField, itemId, langVersions, languages));
}
}
destItem.Fields = destFields;
destItems.Add(destItem);
// Merge multi-language List items with same value
destItems = MergeListItems(destItems);
// Reporting
var unmappedSourceFields = sourceFields?.Where(f => (_itemMetadataTemplate.fields.existingFields == null || !_itemMetadataTemplate.fields.existingFields.Select(mf => mf.fieldId).Contains(f.FieldId)) &&
(_itemMetadataTemplate.fields.convertedFields == null || !_itemMetadataTemplate.fields.convertedFields.Select(mf => mf.sourceFieldId).Contains(f.FieldId)));
foreach (SCField unmappedSourceField in unmappedSourceFields)
{
_conversionReporter.AddUnmappedItemField(unmappedSourceField, itemId);
}
return(destItems);
}