protected void Update(XElement propertySchema, IEnumerable <T> children, IEnumerable <T> origChildren, UpdateCommandNode <T> updateCommandNode)
{
string childrenPath = updateCommandNode.Path + propertySchema.Attribute(SchemaVocab.Name).Value;
//
XElement childEntitySchema = GetEntitySchemaByCollection(propertySchema.Attribute(SchemaVocab.Collection).Value);
string childEntity = childEntitySchema.Attribute(SchemaVocab.Name).Value;
//
string relationshipString = propertySchema.Attribute(SchemaVocab.Relationship).Value;
Relationship childRelationship = GetParentChildrenRelationship(relationshipString, updateCommandNode.Entity, childEntity);
if (childRelationship == null)
{
return;
}
//
UpdateCommandNodeChildren <T> nodeChildren = new UpdateCommandNodeChildren <T>(childRelationship.DirectRelationships[0], updateCommandNode.Path);
updateCommandNode.ChildrenCollection.Add(nodeChildren);
if (childRelationship is ManyToManyRelationship)
{
Split(children, origChildren, childEntitySchema, childRelationship as ManyToManyRelationship, updateCommandNode.PropertyValues,
childrenPath, updateCommandNode.Entity, updateCommandNode.Schema, nodeChildren.UpdateCommandNodes);
return;
}
//
XElement childKeySchema = GetKeySchema(childEntitySchema);
XElement childConcurrencySchema = GetConcurrencySchema(childEntitySchema);
//
int origIndex = 0;
foreach (T origChild in origChildren)
{
UpdateCommandNode <T> origChildCommand = CreateUpdateCommandNode(default(T), origChild, childEntity);
origChildCommand.EntitySchema = childEntitySchema;
origChildCommand.UniqueKeySchema = childKeySchema;
origChildCommand.ConcurrencySchema = childConcurrencySchema;
origChildCommand.ParentPropertyValues = updateCommandNode.PropertyValues;
origChildCommand.ParentRelationship = childRelationship.DirectRelationships[0];
origChildCommand.Path = string.Format("{0}[+{1}]", childrenPath, origIndex);
origChildCommand.PropertyValues = new Dictionary <string, object>(); // avoid throwing NullReferenceException
origChildCommand.OrigPropertyValues = GetPropertyValues(origChild, childEntitySchema);
nodeChildren.UpdateCommandNodes.Add(origChildCommand);
origIndex++;
}
//
int index = 0;
foreach (T child in children)
{
Dictionary <string, object> childPropertyValues = GetPropertyValues(child, childEntitySchema);
//
Dictionary <string, object> childKeyPropertyValues = new Dictionary <string, object>();
foreach (string property in childKeySchema.Elements(SchemaVocab.Property).Select(x => x.Attribute(SchemaVocab.Name).Value))
{
childKeyPropertyValues.Add(property, childPropertyValues[property]);
}
//
UpdateCommandNode <T> origChildCommandNode = Find(nodeChildren.UpdateCommandNodes, childKeyPropertyValues);
if (origChildCommandNode == null)
{
Create(child, childEntitySchema, childRelationship.DirectRelationships[0], updateCommandNode.PropertyValues,
string.Format("{0}[{1}]", childrenPath, index), childEntity, updateCommandNode.Schema);
}
else
{
SetUpdateCommandNode(origChildCommandNode, child);
origChildCommandNode.Path = string.Format("{0}[{1}]", childrenPath, index);
origChildCommandNode.PropertyValues = childPropertyValues;
// recursive
Split(origChildCommandNode);
}
index++;
}
// delete
IEnumerable <UpdateCommandNode <T> > deleteNodes = nodeChildren.UpdateCommandNodes.Where(p => p.AggregNode == null);
foreach (UpdateCommandNode <T> origChildCommand in deleteNodes)
{
Delete(origChildCommand.OrigNode, origChildCommand.EntitySchema, origChildCommand.ParentRelationship, origChildCommand.ParentPropertyValues,
origChildCommand.Path, origChildCommand.Entity, origChildCommand.Schema);
}
}
protected UpdateCommandNode <T> Split(T aggregNode, string entity, XElement entitySchema, XElement uniqueKeySchema, XElement concurrencySchema,
DirectRelationship parentRelationship, Dictionary <string, object> parentPropertyValues, string path)
{
UpdateCommandNode <T> executeCommand = CreateUpdateCommandNode(aggregNode, entity);
executeCommand.EntitySchema = entitySchema;
executeCommand.UniqueKeySchema = uniqueKeySchema;
executeCommand.ConcurrencySchema = concurrencySchema;
executeCommand.ParentPropertyValues = parentPropertyValues;
executeCommand.ParentRelationship = parentRelationship;
executeCommand.Path = path;
executeCommand.PropertyValues = GetPropertyValues(aggregNode, entitySchema);
//executeCommand.FixedUpdatePropertyValues = new Dictionary<string, object>();
//
IEnumerable <KeyValuePair <XElement, T> > propertySchemaChildrens = GetPropertySchemaChildrens(aggregNode, entitySchema);
foreach (KeyValuePair <XElement, T> childrenPair in propertySchemaChildrens)
{
XElement propertySchema = childrenPair.Key;
IEnumerable <T> children = GetChildren(childrenPair.Value);
//
string childPath = path + propertySchema.Attribute(SchemaVocab.Name).Value;
//
XElement childEntitySchema = GetEntitySchemaByCollection(propertySchema.Attribute(SchemaVocab.Collection).Value);
string childEntity = childEntitySchema.Attribute(SchemaVocab.Name).Value;
//
string relationshipString = propertySchema.Attribute(SchemaVocab.Relationship).Value;
Relationship childRelationship = GetParentChildrenRelationship(relationshipString, entity, childEntity);
if (childRelationship == null)
{
continue;
}
//
UpdateCommandNodeChildren <T> nodeChildren = new UpdateCommandNodeChildren <T>(childRelationship.DirectRelationships[0], path);
executeCommand.ChildrenCollection.Add(nodeChildren);
if (childRelationship is ManyToManyRelationship)
{
Split(children, childEntitySchema, childRelationship as ManyToManyRelationship, executeCommand.PropertyValues, childPath, nodeChildren.UpdateCommandNodes);
}
else
{
XElement childKeySchema = GetKeySchema(childEntitySchema);
XElement childConcurrencySchema = GetConcurrencySchema(childEntitySchema);
int index = 0;
foreach (T child in children)
{
UpdateCommandNode <T> childNode = Split(child, childEntity, childEntitySchema, childKeySchema, childConcurrencySchema,
childRelationship.DirectRelationships[0], executeCommand.PropertyValues,
string.Format("{0}[{1}]", childPath, index));
nodeChildren.UpdateCommandNodes.Add(childNode);
index++;
}
}
}
return(executeCommand);
}
